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1

Dynamic context bindings : infrastructural support for context-aware applications  

Microsoft Academic Search

The world is increasingly equipped with high-capacity, interconnected,\\u000amobile and embedded computing devices. Context-awareness provides an\\u000aattractive approach to personalize applications such that they better suit the\\u000auser’s needs in this rich computing environment.\\u000aContext-aware applications use context information, offered by context\\u000asources, to adapt their behavior to the situation at hand. The exchange of\\u000acontext information requires an association

Tom Henri Ferdinand Broens

2008-01-01

2

iCAP: Rapid Prototyping of Context-Aware Applications  

Microsoft Academic Search

Although numerous context-aware applications, those that implicitly take their context of use into account, have been developed, and advances have been made in technology to acquire contextual information, it is still difficult to develop and prototype interesting context-aware applications. This is largely due to the lack of programming support available to both programmers and end users. In this paper we

Timothy Sohn; Anind K. Dey

2003-01-01

3

Model-driven development of context-aware Web applications  

Microsoft Academic Search

Context-aware, multi-channel Web applications are more and more gaining consensus among both content providers and consumers, but very few proposals exist for their conceptual modeling. This paper illustrates a conceptual framework that provides modeling facilities for context-aware, multi-channel Web applications; it also shows how high-level modeling constructs can drive the application development process through automatic code generation. Our work stresses

Stefano Ceri; Florian Daniel; Maristella Matera; Federico Michele Facca

2007-01-01

4

An extensible XACML authorization decision engine for context aware applications  

Microsoft Academic Search

Context-awareness is a central aspect of pervasive computing applications. However, the information representing a context evolves with the capability of the technology embedded in pervasive devices. As a consequence, access control systems should be able to support and understand any new context information in order to address access control requirements. In this article, we present an extensible XACML (eXtensible Access

Marwan Cheaito; Romain Laborde; François Barrère; Abdelmalek Benzekri

2009-01-01

5

Estimating Hospital Work Activities in Context-Aware Healthcare Applications  

Microsoft Academic Search

Hospitals are convenient settings for the deployment of context-aware applications. The Information needs of hospital workers are highly dependent on contextual variables, such as location, role and activity. While some of these parameters can be easily determined, others, such as activity are much more complex to estimate. This paper describes an approach to estimate the activity being performed by hospital

Jesus Favela; Monica Tentori; Luis A. Castro; Victor M. Gonzalez; Elisa B. Moran; Ana I. Martinez-Garcia

2006-01-01

6

The Anatomy of a Context-Aware Application  

Microsoft Academic Search

We describe a sensor-driven, or sentient, platform for context-aware computing that enables applications to follow mobile users as they move around a building. The platform is particularly suitable for richly equipped, networked environments. The only item a user is required to carry is a small sensor tag, which identifies them to the system and locates them accurately in three dimensions.

Andy Harter; Andy Hopper; Pete Steggles; Andy Ward; Paul Webste

2002-01-01

7

Poster: a context-aware framework for mobile applications  

Microsoft Academic Search

The world is seeing two significant trends today -- (a) most of the decisions and actions are performed based on the information available (b) the increasing popularity of smart phones and mobile apps that function in isolated manner. We present Rover 2.0, framework that caters to the development of context-aware mobile applications. As technology is used to augment human capabilities,

Shivsubramani Krishnamoorthy; Ashok Agrawala

2011-01-01

8

The anatomy of a context-aware application  

Microsoft Academic Search

Abstract We describe a platform for context-aware computing,which enables applications to follow mobile,users as they move around,a building. The platform is particularly suitable for richly equipped, networked environments. The only item a user is required to carry is a small sensor tag, which identifies them to the system,and locates them,accurately in three dimensions. The platform builds a dynamic,model,of the environment,using

Andy Harter; Andy Hopper; Pete Steggles; Andy Ward; Paul Webster

1999-01-01

9

Bug-Free Sensors: The Automatic Verification of Context-Aware TinyOS Applications  

NASA Astrophysics Data System (ADS)

We provide the first tool for verifying the logic of context-aware applications written for the mainstream sensor network operating system TinyOS; we focus on detecting programming errors related to incorrect adaptation to context.

Bucur, Doina; Kwiatkowska, Marta

10

Intelligent configuration recommendation of context-aware mobile application  

Microsoft Academic Search

Automatic contextual reconfiguration, which is the process of application to adjust features due to context changes, is vital to mobile computing. Existing methods have common deficiencies: (1) expert knowledge used in model has deviation with real data, (2) can not deal with the fuzziness of context, (3) neglecting the personal frequent reconfiguration patterns. Hence, we are motivated to propose an

Xie Haitao; Meng Xiangwu

2011-01-01

11

Context-Aware Browser  

Microsoft Academic Search

We propose the Context-Aware Browser, a new approach to context-aware Web content perusal by means of mobile devices. The Context-Aware Browser exploits artificial intelligence techniques and mixes several ingredients: it is a Web browser running on one's own mobile device and capable of automatically and proactively downloading and executing context-aware Web contents, selected by querying a search engine on the

Paolo Coppola; Vincenzo Della Mea; Luca Di Gaspero; Danny Mischis; Stefano Mizzaro; Elena Nazzi; Ivan Scagnetto; Luca Vassena

2009-01-01

12

Towards QoS-Awareness of Context-Aware Mobile Applications and Services  

Microsoft Academic Search

In our current connected wireless world, mobile devices are enabled to use various networking facilities. Although this enables mobile users to communicate any time and any place, it may also be very intrusive. There is a high need to manage the information stream a user receives on his\\/her mobile device. Context-awareness seems to be a promising way to manage this

Katarzyna Wac; R. Meersman; Z. Tari

2005-01-01

13

The Context Toolkit: Aiding the Development of Context-Aware Applications  

Microsoft Academic Search

Context is an important, yet poorly understood and poorlyutilized source of information in interactive computing. Itwill be of particular importance in the new millennium asusers move away from their desktops and into settingswhere their contexts are changing rapidly. Context isdifficult to use because, unlike other forms of user input,there is no common, reusable way to handle it. As a result,context-aware

Daniel Salber; Anind K. Dey; Gregory D. Abowd

1999-01-01

14

Context-Aware Monitoring of Untrusted Mobile Applications  

NASA Astrophysics Data System (ADS)

Current measures to enhance the security of untrusted mobile applications require a user to trust the software vendor. They do not guarantee complete protection against the behaviours that mobile malware commonly exhibits. This paper expands execution monitoring, building a more precise system to prevent mobile applications deviating from their intended functions. User judgements about program execution can be specified abstractly and compiled into a monitor capable of identifying an event’s context. We demonstrate our development of a prototype system for the BlackBerry platform and show how it can defend the device against unseen malware more effectively than existing security tools.

Brown, Andrew; Ryan, Mark

15

Uncertainty Management in Context-Aware Applications: Increasing Usability and User Trust  

Microsoft Academic Search

Uncertainty in context-aware computing is mainly a consequence of the complexity of context acquisition mechanisms and context\\u000a processing. The presence of uncertainty may harm the users’ confidence in the application, rendering it useless. This paper\\u000a describes a three-phase strategy to manage uncertainty by identifying its possible sources, representing uncertain information,\\u000a and determining how to proceed, once uncertain context is detected.

Pedro Damián-Reyes; Jesús Favela; Juan Contreras-Castillo

2011-01-01

16

Securing context-aware applications using environment roles  

Microsoft Academic Search

In the future, a largely invisible and ubiquitous computing infrastructure will assist people with a variety of activities in the home and at work. The applications that will be deployed in such systems will create and manipulate private information and will provide access to a variety of other resources. Securing such applications is challenging for a number of reasons. Unlike

Michael J. Covington; Wende Long; Srividhya Srinivasan; Anind K. Dev; Mustaque Ahamad

2001-01-01

17

Effective Movement Classification for Context Awareness in Medical Applications Networking  

Microsoft Academic Search

Today new medical applications evolve from large stationary devices to small and smart mobile systems that will enable e.g. more efficient post operative health care. These mobile systems that benefit from ongoing miniaturization and energy savings in hardware will allow continuous monitoring of patients accompanying and supporting therapy and detect emergency situations. Additionally to vital data, the physiological load or

H. Hellbruck; Hua Xin; Martin Lipphardt

2009-01-01

18

Context-aware event detection smartphone application for first responders  

NASA Astrophysics Data System (ADS)

The rise of social networking platforms like Twitter, Facebook, etc…, have provided seamless sharing of information (as chat, video and other media) among its user community on a global scale. Further, the proliferation of the smartphones and their connectivity networks has powered the ordinary individuals to share and acquire information regarding the events happening in his/her immediate vicinity in a real-time fashion. This human-centric sensed data being generated in "human-as-sensor" approach is tremendously valuable as it delivered mostly with apt annotations and ground truth that would be missing in traditional machine-centric sensors, besides high redundancy factor (same data thru multiple users). Further, when appropriately employed this real-time data can support in detecting localized events like fire, accidents, shooting, etc…, as they unfold and pin-point individuals being affected by those events. This spatiotemporal information, when made available for first responders in the event vicinity (or approaching it) can greatly assist them to make effective decisions to protect property and life in a timely fashion. In this vein, under SATE and YATE programs, the research team at AFRL Tec^Edge Discovery labs had demonstrated the feasibility of developing Smartphone applications, that can provide a augmented reality view of the appropriate detected events in a given geographical location (localized) and also provide an event search capability over a large geographic extent. In its current state, the application thru its backend connectivity utilizes a data (Text & Image) processing framework, which deals with data challenges like; identifying and aggregating important events, analyzing and correlating the events temporally and spatially and building a search enabled event database. Further, the smartphone application with its backend data processing workflow has been successfully field tested with live user generated feeds.

Boddhu, Sanjay K.; Dave, Rakesh P.; McCartney, Matt; West, James A.; Williams, Robert L.

2013-05-01

19

Dynamic Request Allocation and Scheduling for Context Aware Applications Subject to a Percentile Response Time SLA in a Distributed Cloud  

Microsoft Academic Search

We consider geographically distributed data centers forming a collectively managed cloud computing system, hosting multiple Service Oriented Architecture (SOA) based context aware applications, each subject to Service Level Agreements (SLA). The Service Level Agreements for each context aware application require the response time of a certain percentile of the input requests to be less than a specified value for a

Keerthana Boloor; Rada Chirkova; Yannis Viniotis; Tiia Salo

2010-01-01

20

Management of SOA-Based Context-Aware Applications Hosted in a Distributed Cloud Subject to Percentile Constraints  

Microsoft Academic Search

We consider geographically distributed datacen- ters forming a collectively managed cloud computing sys- tem. Multiple SaaS providers host their SOA-based, context- aware applications in the cloud. Typically, the context-aware applications serve multiple classes of customers (end users) classified on economic considerations, which determine the Quality of Service (QoS) received by each class. This need for differentiated QoS for each customer

Keerthana Boloor; Rada Chirkova; Tiia Salo; Yannis Viniotis

2011-01-01

21

A Context-Aware Reflective Middleware Framework for Adaptive Real-time Vehicle Applications  

Microsoft Academic Search

Software has become crucial to develop vehicle systems. Future unmanned intelligent vehicle safety systems will increasingly rely on situational contexts collected at runtime through temporally built ad-hoc and dynamic networks for vehicle-to-vehicle and vehicle-to-roadside communications and dynamic adaptation to the contexts to improve vehicle safety and reduce traffic congestion. Context-aware reflective middleware, which can measure real-time contexts and accordingly reconfigure

Shengpu Liu; Liang Cheng

22

Distributed context-aware visualization  

Microsoft Academic Search

We present a visualization framework integrated in a context-aware system that uses a common underlying stream processing middleware for tight integration of data accessing, processing, and visualization. Context-aware systems are often realized on mobile devices that do not have the computational power to perform complex tasks. Therefore, a dedicated hard- ware infrastructure might be required for data processing. In our

Harald Sanftmann; Nazario Cipriani; Daniel Weiskopf

2011-01-01

23

Context-aware Service Coordination for Mobile e-Health Applications  

Microsoft Academic Search

Abstract: In this paper, we present a general architecture for service delivery and coordination,in intelligent peer-to-peer (IP2P) environments,that has,been developed,within the CASCOM research project. Our essential approach,is an innovative combination of agent technology, Semantic Web Services, peer-to-peer, context-awareness, and mobile computing for intelligent peer-to-peer mobile

Federico Bergenti; César Cáceres; Alberto Fernández; Nadine Fröhlich; Heikki Helin; Oliver Keller; Ari Kinnunen; Matthias Klusch; Heimo Laamanen; António Lopes; Sascha Ossowski; Heiko Schuldt; Michael Schumacher

2006-01-01

24

Activity Recognition for Context-aware Hospital Applications: Issues and Opportunities for the Deployment of Pervasive Networks  

Microsoft Academic Search

Hospitals are convenient settings for the deployment of context-aware applications. The information needs of hospital workers\\u000a are highly dependent on contextual variables, such as location, role and activity. While some of these parameters can be easily\\u000a determined, others, such as activity are much more complex to estimate. This paper describes an approach to estimate the activity\\u000a being performed by hospital

Jesús Favela; Monica Tentori; Luís A. Castro; Víctor M. González; Elisa B. Moran; Ana I. Martínez-garcia

2007-01-01

25

Context-awareness in Mobile Tourism Guides  

Microsoft Academic Search

Today's tourists expect to get personalized access to tourism information at anytime, from anywhere with any media. Mobile tourism guides provide the user with such an ubiquitous access. The prerequisite for this is the notion of customisation, requiring awareness of the applications context together with appropriate adaptation mechanisms. Currently, there is a proliferation of mobile tourism guides, proposing an unmanageable

W. Schwinger; Ch. Grün; B. Pröll; W. Retschitzegger; A. Schauerhuber

26

A Portable Framework Design to Support User Context Aware Augmented Reality Applications  

Microsoft Academic Search

This paper describes a portable framework to support augmented reality applications with user context information. It combines user's body responses with a virtual world by monitoring user's physical activity and vital signs in order to reflect real body status in a virtual world. In this paper we present a design of our portable vital signs monitoring framework, which can be

Jacek Lewandowski; Hisbel E. Arochena; Raouf N. G. Naguib; Kuo-Ming Chao

2011-01-01

27

Context Awareness and Adaptation in Mobile Learning  

Microsoft Academic Search

This study investigates the importance of context-awareness and adaptation in mobile learning. Context-aware mobile learning that senses mobile environment and reacts to changing context during learning process has four interaction modes with three mobile entities of different mobility. Contexts in mobile learning are categorized into six dimensions that form a context space. Several mobile learning systems are examined according to

Yuan-kai Wang

2004-01-01

28

Composable context aware services [guest editorial  

Microsoft Academic Search

The seven articles in this special issue focus on composable context aware services. The articles roughly fall into four areas: a survey of ambient networks, extensions to network protocols to facilitate service discovery and composition, networking middleware and software frameworks for integration of context awareness in service composition, and an example of creating an ecosystem to build context-aware mobile social

Raj Yavatkar; Andrew T. Campbell; Lakshman Krishnamurthy; Tarek F. Abdelzaher

2008-01-01

29

A Survey of Context-Aware Mobile Computing Research  

Microsoft Academic Search

Context-aware computing is a mobile computing paradigm in which applications can discover and take advantage of contextual information (such as user location, time of day, nearby people and devices, and user activity). Since it was proposed about a decade ago, many researchers have studied this topic and built several context-aware applications to demonstrate the usefulness of this new technology. Context-aware

Guanling Chen; David Kotz

2000-01-01

30

Feature Modeling for Context-Aware Software Product Lines  

Microsoft Academic Search

One of the first activities to develop a software product line is the feature analysis. This activity produces a feature model to represent commonalities and variabilities among products of a product line. Context- aware applications use context information to provide services and relevant information for their users. One of the challenges to build a context-aware product line is how to

Paula Fernandes; Cláudia Werner; Leonardo Gresta Paulino Murta

2008-01-01

31

Genie of the Net: Context-Aware Information Management  

Microsoft Academic Search

We will describe context-aware systems that are used as components of intell igent environment and manage services on behalf of the user. We will present an agent -based architecture, Genie of the Net, for context-aware systems. We will also discuss the need for knowledge representations. Furthermore, we will present information management as our primary application area and discuss the applications

Jukka Riekki; Jouni Huhtinen; Pekka Ala-Siuru; Petteri Alahuhta; Jouni Kaartinen; Juha Röning

32

A Framework for Context-Aware University Mobile Organizer  

Microsoft Academic Search

With appearance of mobile devices such as cell phones, PDAs and smart phones, context-aware applications are becoming increasingly popular. Therefore, developers are always seeking for new and powerful developing tools for context-aware programming. Developers prefer to use fast and convenient development tools that can support all required possibilities for implementing a complete and user-friendly context-aware systems. In this paper, we

Seyed Hadi Mirisaee; Abdullah Mohd Zin

2009-01-01

33

Context-Aware Recommender Systems  

NASA Astrophysics Data System (ADS)

The importance of contextual information has been recognized by researchers and practitioners in many disciplines, including e-commerce personalization, information retrieval, ubiquitous and mobile computing, data mining, marketing, and management. While a substantial amount of research has already been performed in the area of recommender systems, most existing approaches focus on recommending the most relevant items to users without taking into account any additional contextual information, such as time, location, or the company of other people (e.g., for watching movies or dining out). In this chapter we argue that relevant contextual information does matter in recommender systems and that it is important to take this information into account when providing recommendations. We discuss the general notion of context and how it can be modeled in recommender systems. Furthermore, we introduce three different algorithmic paradigms - contextual prefiltering, post-filtering, and modeling - for incorporating contextual information into the recommendation process, discuss the possibilities of combining several contextaware recommendation techniques into a single unifying approach, and provide a case study of one such combined approach. Finally, we present additional capabilities for context-aware recommenders and discuss important and promising directions for future research.

Adomavicius, Gediminas; Tuzhilin, Alexander

34

Social networks and context-aware spam  

Microsoft Academic Search

Social networks are popular for online communities. This paper evaluates the risk of sophisticated context-aware spam that could result from information sharing on social networks and discusses potential mitigation strategies. Unlike normal spam, context-aware spam would likely have a high click-through rate due to exploitation of authentic social connections. Context-aware spam could lead to more insidious attacks that try to

Garrett Brown; Travis Howe; Micheal Ihbe; Atul Prakash; Kevin Borders

2008-01-01

35

Data-centric middleware for context-aware pervasive computing  

Microsoft Academic Search

The complexity of developing and deploying context-aware pervasive-computing applications calls for distributed software infrastructures that assist applications to collect, aggregate, and disseminate contextual data. In this paper, we motivate a data-centric design for such an infrastructure to support context-aware applications. Our middleware system, Solar, treats contextual data sources as stream publishers and the core of Solar is a scalable and

Guanling Chen; Ming Li; David Kotz

2008-01-01

36

Context-Aware Ubiquitous Service Composition Technology  

Microsoft Academic Search

A context-aware ubiquitous service composition technology is proposed. This can be used in both enterprise and consumer communication\\u000a service environments. Because the context-awareness is the one of the most important factors in ubiquitous computing, it is\\u000a insufficient in conventional service integration based on rigid interface design. The flexible service composition based on\\u000a user context is required. Our proposed approach is

Yoji Yamato; Yohei Tanaka; Hiroshi Sunaga

37

Trust Relationships in Networked Context Aware Systems  

NASA Astrophysics Data System (ADS)

This paper discusses challenges in building trust in networked context aware systems. It does not even trying to solve the challenges. Instead, it concentrates in discovering the requirements for trustworthy systems.

Punkka, Veikko

38

Context-Aware Computing: A Test Case  

Microsoft Academic Search

Through an iterative design approach, we have proposed and evaluated ways of incorporating user-created information into context-aware systems. We implemented and tested a location-sensitive college campus tour guide called Campus Aware that allows users to annotate physical spaces with text notes. The goal was to provide visitors to the campus with a sense of the activities going on in the

Jenna Burrell; Geri Gay; Kiyo Kubo; Nick Farina

2002-01-01

39

Simplifying Context-Aware Agent Coordination Using Context-Sensitive Data Structures.  

National Technical Information Service (NTIS)

Context-aware computing, an emerging paradigm in which applications sense and adapt their behavior to changes in their operational environment, is key to developing dependable agent-based software systems for use in the often unpredictable settings of ad ...

C. Julien G. Roman J. Payton

2004-01-01

40

Context-Aware Personal Navigation Using Embedded Sensor Fusion in Smartphones  

PubMed Central

Context-awareness is an interesting topic in mobile navigation scenarios where the context of the application is highly dynamic. Using context-aware computing, navigation services consider the situation of user, not only in the design process, but in real time while the device is in use. The basic idea is that mobile navigation services can provide different services based on different contexts—where contexts are related to the user's activity and the device placement. Context-aware systems are concerned with the following challenges which are addressed in this paper: context acquisition, context understanding, and context-aware application adaptation. The proposed approach in this paper is using low-cost sensors in a multi-level fusion scheme to improve the accuracy and robustness of context-aware navigation system. The experimental results demonstrate the capabilities of the context-aware Personal Navigation Systems (PNS) for outdoor personal navigation using a smartphone.

Saeedi, Sara; Moussa, Adel; El-Sheimy, Naser

2014-01-01

41

Context-aware personal navigation using embedded sensor fusion in smartphones.  

PubMed

Context-awareness is an interesting topic in mobile navigation scenarios where the context of the application is highly dynamic. Using context-aware computing, navigation services consider the situation of user, not only in the design process, but in real time while the device is in use. The basic idea is that mobile navigation services can provide different services based on different contexts-where contexts are related to the user's activity and the device placement. Context-aware systems are concerned with the following challenges which are addressed in this paper: context acquisition, context understanding, and context-aware application adaptation. The proposed approach in this paper is using low-cost sensors in a multi-level fusion scheme to improve the accuracy and robustness of context-aware navigation system. The experimental results demonstrate the capabilities of the context-aware Personal Navigation Systems (PNS) for outdoor personal navigation using a smartphone. PMID:24670715

Saeedi, Sara; Moussa, Adel; El-Sheimy, Naser

2014-01-01

42

Metaphors and Context-Aware Information Access  

Microsoft Academic Search

Metaphors are often used to provide the user with a mental model to ease the use of computers. An example of such a metaphor is the commonly used ''Desktop Metaphor''. Metaphors also can be used to ease context-aware information access for the users of mobile information systems. In this paper we present a taxonomy that allows the categorisation of such

Peter Coschurba; Joachim Baumann; Uwe Kubach; Alexander Leonhardi

2001-01-01

43

Context-aware intelligent recommender system  

Microsoft Academic Search

This demo paper presents a context-aware recommendation system. The system mines data from user's web searches and other sources to improve the presentation of content on visited web pages. While user is browsing the internet, a memory resident agent records and analyzes the content of the webpages that were either searched for or visited in order to identify topic preferences.

Mehdi Elahi

2010-01-01

44

Context-awareness for heterogeneous access management  

NASA Astrophysics Data System (ADS)

The increasing availability of both static and dynamic context information has steadily been driving the development of context-aware communication systems. Adapting system behavior according to current context of the network, the user, and the terminal can yield significant end-to-end performance improvements. In this paper, we present a concept for how to use context information, in particular location information and movement prediction, for Heterogeneous Access Management (HAM). In a first step, we outline the functional architecture of a distributed and extensible context management system (CMS) that defines the roles, tasks, and interfaces of all modules within such a system for large-scale context acquisition and dissemination. In a second step, we depict how the available context information can be exploited for optimizing terminal handover decisions to be made in a multi-RAT (radio access technology) environment. In addition, the utilized method for predicting terminal location as well as the objective functions used for evaluating and comparing system performance are described. Finally, we present preliminary simulation results demonstrating that HAM systems that include current and future terminal context information in the handover decision process clearly outperform conventional systems.

Mannweiler, C.; Klein, A.; Schneider, J.; Schotten, H. D.

2010-11-01

45

Context aware architecture for sending adaptive HELLO messages in VANET  

Microsoft Academic Search

With vehicular Ad hoc Network (VANET) being considered a vital application of Mobile ad hoc Network (MANET), this paper will focus on exploiting the aspect of context aware system to leverage the efficiency of routing protocols in VANET. Our investigation will concentrate on the vehicle to vehicle (V2V) communication type rather than the vehicle to Infrastructures (V2I) type, owing to

Moath Muayad Al-Doori; Ali Hilal Al-Bayatti; Hussein Zedan

2010-01-01

46

Cyberguide: A mobile context-aware tour guide  

Microsoft Academic Search

Future computing environments will free the user from the constraints of the desktop. Applications for a mobile environment should take advantage of contextual information, such as position, to offer greater services to the user. In this paper, we present the Cyberguide project, in which we are building prototypes of a mobile context-aware tour guide. Knowledge of the user's current location,

Gregory D. Abowd; Christopher G. Atkeson; Jason I. Hong; Sue Long; Rob Kooper; Mike Pinkerton

1997-01-01

47

Context-awareness in Mobile Tourism Guides - A Comprehensive Survey  

Microsoft Academic Search

Today's tourists expect to get personalized access to tourism information at anytime, from anywhere with any media. Mobile tourism guides provide the user with such an ubiquitous access. The prerequisite for this is the notion of customisation, requiring awareness of the applications context together with appropriate adaptation mechanisms. Currently, there is a proliferation of mobile tourism guides, proposing an unmanageable

W. Schwinger; Ch. Grün; B. Pröll; W. Retschitzegger; A. Schauerhuber

48

Context-aware sensing of physiological signals.  

PubMed

Recent advancement in microsensor technology permits miniaturization of conventional physiological sensors. Combined with low-power, energy-aware embedded systems and low power wireless interfaces, these sensors now enable patient monitoring in home and workplace environments in addition to the clinic. Low energy operation is critical for meeting typical long operating lifetime requirements. Some of these physiological sensors, such as electrocardiographs (ECG), introduce large energy demand because of the need for high sampling rate and resolution, and also introduce limitations due to reduced user wearability. In this paper, we show how context-aware sensing can provide the required monitoring capability while eliminating the need for energy-intensive continuous ECG signal acquisition. We have implemented a wearable system based on standard widely-used handheld computing hardware components. This system relies on a new software architecture and an embedded inference engine developed for these standard platforms. The performance of the system is evaluated using experimental data sets acquired for subjects wearing this system during an exercise sequence. This same approach can be used in context-aware monitoring of diverse physiological signals in a patient's daily life. PMID:18003197

Wu, Winston H; Batalin, Maxim A; Au, Lawrence K; Bui, Alex A T; Kaiser, William J

2007-01-01

49

Agent based Context aware Image Fusion for Military sensor networks  

Microsoft Academic Search

This paper proposes an Agent based Context aware Image Fusion for Military sensor networks (ACIF-MSN) to form an improved infrastructure for multi-sensor image fusion. This paper considers three contexts namely temporal, emergency and computational contexts. The mobile agent used in the scheme roams around different active sensor nodes in each of the clusters to perform context aware image fusion based

S. S. Manvi; A. V. Sutagundar

2009-01-01

50

Solving LR Conflicts Through Context Aware Scanning  

NASA Astrophysics Data System (ADS)

This paper presents a new algorithm to compute the exact list of tokens expected by any LR syntax analyzer at any point of the scanning process. The lexer can, at any time, compute the exact list of valid tokens to return only tokens in this set. In the case than more than one matching token is in the valid set, the lexer can resort to a nested LR parser to disambiguate. Allowing nested LR parsing requires some slight modifications when building the LR parsing tables. We also show how LR parsers can parse conflictive and inherently ambiguous languages using a combination of nested parsing and context aware scanning. These expanded lexical analyzers can be generated from high level specifications.

Leon, C. Rodriguez; Forte, L. Garcia

2011-09-01

51

Autonomic Context-Aware Service Composition  

Microsoft Academic Search

One of the main technical challenges of the pervasive computing is the ability to build applications with the capacity to adapt themselves to their environment. In this paper, we present an open architecture facilitating the development of home services. Context dynamicity and service ambiguity are dynamically managed by smart composing elements. The architecture is applied and tested in an attractive

André Bottaro; Johann Bourcier; Clement Escoffier; Philippe Lalanda

52

AI Techniques in a Context-Aware Ubiquitous Environment  

NASA Astrophysics Data System (ADS)

Nowadays, the mobile computing paradigm and the widespread diffusion of mobile devices are quickly changing and replacing many common assumptions about software architectures and interaction/communication models. The environment, in particular, or more generally, the so-called user context is claiming a central role in everyday’s use of cellular phones, PDAs, etc. This is due to the huge amount of data “suggested” by the surrounding environment that can be helpful in many common tasks. For instance, the current context can help a search engine to refine the set of results in a useful way, providing the user with a more suitable and exploitable information. Moreover, we can take full advantage of this new data source by “pushing” active contents towards mobile devices, empowering the latter with new features (e.g., applications) that can allow the user to fruitfully interact with the current context. Following this vision, mobile devices become dynamic self-adapting tools, according to the user needs and the possibilities offered by the environment. The present work proposes MoBe: an approach for providing a basic infrastructure for pervasive context-aware applications on mobile devices, in which AI techniques (namely a principled combination of rule-based systems, Bayesian networks and ontologies) are applied to context inference. The aim is to devise a general inferential framework to make easier the development of context-aware applications by integrating the information coming from physical and logical sensors (e.g., position, agenda) and reasoning about this information in order to infer new and more abstract contexts.

Coppola, Paolo; Mea, Vincenzo Della; di Gaspero, Luca; Lomuscio, Raffaella; Mischis, Danny; Mizzaro, Stefano; Nazzi, Elena; Scagnetto, Ivan; Vassena, Luca

53

Context Aware Transit Navigator, Transit IDEA Project No. 65.  

National Technical Information Service (NTIS)

The objective of this project was to create a real-time, context-aware transit navigation system. The system integrates the route-planning and real-time tracking functionality provided by current systems into a single, real-time and context-aware applicat...

J. Eriksson

2013-01-01

54

Towards an Efficient Context-Aware System: Problems and Suggestions to Reduce Energy Consumption in Mobile Devices  

Microsoft Academic Search

Looking for optimizing the battery consumption is an open issue, and we think it is feasible if we analyze the battery consumption behavior of a typical context-aware application to reduce context-aware operations at runtime. This analysis is based on different context sensors configurations. Actually existing context-aware approaches are mainly based on collecting and sending context data to external components, without

Jose F. Mejia Bernal; Luca Ardito; Maurizio Morisio; Paolo Falcarin

2010-01-01

55

ContextAlert: context-aware alert mode for a mobile phone  

Microsoft Academic Search

Purpose – Mobile computing research has been focused on developing technologies for handheld devices such as mobile phones, notebook computers, and mobile IP. Today, emphasis is increasing on context-aware computing, which aims to build the intelligence into mobile devices to sense and respond to the user's context. The purpose of this paper is to present a context-aware mobile computing model

Santi Phithakkitnukoon; Ram Dantu

2010-01-01

56

Context-Aware Ranking Method for Information Recommendation  

Microsoft Academic Search

Previously, we proposed two recommendation systems—context-aware information filtering (C-IF) and context-aware collaborative\\u000a filtering (C-CF)—both of which are context-aware recommendation methods. We have also shown their effectiveness through of\\u000a experiments using a restaurant recommendation system based on these methods. Furthermore, we need to rank the recommended\\u000a contents to improve the performance of the C-IF and the C-CF. A ranking method ranks

Kenta Oku; Shinsuke Nakajima; Jun Miyazaki; Shunsuke Uemura; Hirokazu Kato

57

ENABLING CONTEXT-AWARE SERVICES FOR MOBILE USERS  

Microsoft Academic Search

We present an architecture that offers a set of gen eric services for building context-aware mobile app lications. We present two realized prototypes that recognize user 's context, learn his routines, use context informa tion to constrain service discovery as well as to find relevant infor mation, and manage connectivity on the basis of the given policy. Further, the user

Jukka Riekki; Oleg Davidyuk; Jari Forstadius; Junzhao Sun; Jaakko Sauvola

58

Intelligent business assistant based on context-aware computing platform  

Microsoft Academic Search

The existing reminder system uses limited context information and has limited functions, so it can't meet users ' needs. This paper presents intelligent business assistant based on context-aware computing platform in a grid computing environment. The platform uses the context modeling and reasoning technology and analyzes the system in the grid environment. At last, the intelligent business assistant is implemented

Yanshuai Zhang; Hong He

2010-01-01

59

Toward Sensor-Based Context Aware Systems  

PubMed Central

This paper proposes a methodology for sensor data interpretation that can combine sensor outputs with contexts represented as sets of annotated business rules. Sensor readings are interpreted to generate events labeled with the appropriate type and level of uncertainty. Then, the appropriate context is selected. Reconciliation of different uncertainty types is achieved by a simple technique that moves uncertainty from events to business rules by generating combs of standard Boolean predicates. Finally, context rules are evaluated together with the events to take a decision. The feasibility of our idea is demonstrated via a case study where a context-reasoning engine has been connected to simulated heartbeat sensors using prerecorded experimental data. We use sensor outputs to identify the proper context of operation of a system and trigger decision-making based on context information.

Sakurai, Yoshitaka; Takada, Kouhei; Anisetti, Marco; Bellandi, Valerio; Ceravolo, Paolo; Damiani, Ernesto; Tsuruta, Setsuo

2012-01-01

60

Bluetooth-Assisted Context-Awareness in Educational Data Networks  

ERIC Educational Resources Information Center

In this paper, we propose an auxiliary "location network", to support user-independent context-awareness in educational data networks; for example, to help visitors in a museum. We assume that, in such scenarios, there exist "service servers" that need to be aware of user location in real-time. Specifically, we propose the implementation of a…

Gonzalez-Castano, F. J.; Garcia-Reinoso, J.; Gil-Castineira, F.; Costa-Montenegro, E.; Pousada-Carballo, J. M.

2005-01-01

61

Providing Tailored (Context-Aware) Information to City Visitors  

Microsoft Academic Search

The GUIDE system has been developed in order to provide city visitors with an intelligent and context-aware tourist guide.\\u000a The system has been deployed in the city of Lancaster and integrates the use of hand-held personal computing technologies,\\u000a wireless communications, context-awareness and adaptive hypermedia. This paper focuses on the role of adaptive hypermedia\\u000a within the GUIDE system and the techniques

Keith Cheverst; Nigel Davies; Keith Mitchell; Paul Smith

2000-01-01

62

Towards a Better Understanding of Context and Context-Awareness  

Microsoft Academic Search

When humans talk with humans, they are able to use implicit situational information, or context, to increase the conversational bandwidth. Unfortunately, this ability to convey ideas does not transfer well to humans interacting with computers. In tradi-tional interactive computing, users have an impoverished mechanism for providing input to computers. By improving the computer's access to context, we increase the richness

Gregory D. Abowd; Anind K. Dey; Peter J. Brown; Nigel Davies; Mark Smith; Pete Steggles

1999-01-01

63

Body Sensor Network Based Context Aware QRS Detection  

Microsoft Academic Search

In this paper, a body sensor network (BSN) based context aware QRS detection scheme is proposed. The algorithm uses the context information provided by the body sensor network to improve the QRS detection performance by dynamically selecting the leads with best SNR and taking advantage of the best features of two complementary detection algorithms. The accelerometer data from the BSN

Huaming Li; Jindong Tan

2006-01-01

64

Audio based Context Awareness on a Pocket PC  

Microsoft Academic Search

Abstract In today’s society, a large number of mobile electronic devices are used on a regular basis. These devices often require a lot of settings to be made by the user. One way of minimizing this and introducing smartness into these devices is through the concept of context awareness. The purpose of this Master’s thesis is to implement a context

FILIP BONNEVIER

65

Providing Context-awareness in the Smart Car Environment  

Microsoft Academic Search

Driving is a complex process influenced by a wide range of factors, especially complex interactions between the driver, the vehicle and the environment. This paper aims at the representation of complex situations in smart car domain and the middleware support. A general architecture of the smart car is presented from the point of view of context-awareness. A hierarchical context model

Jie Sun; Yongping Zhang; Kejia He

2010-01-01

66

Privacy of Value-Added Context-Aware Service Cloud  

NASA Astrophysics Data System (ADS)

In the cloud computing era, service provider cloud and context service cloud store all your personal context data. This is a positive aspect for value-added context-aware service cloud as it makes that context information collection are easier than was the case previously. However, this computing environment does add a series of threats in relation to privacy protection. Whoever receives the context information is able to deduce the status of the owners and, generally owners are not happy to share this information. In this paper, we propose a privacy preserved framework which can be utilized by value-added context-aware service cloud. Context data and related services access privileges are determined by context-aware role-based access control (CRAC) extended from role-based access control (RAC). Privacy preserved context service protocol (PPCS) is designed to protect user privacy from exposed context information. Additionally, user network and information diffusion is combined to evaluate the privacy protection effect.

Huang, Xin; He, Yin; Hou, Yifan; Li, Lisi; Sun, Lan; Zhang, Sina; Jiang, Yang; Zhang, Tingting

67

Using Activity Theory to Model Context Awareness  

Microsoft Academic Search

One of the cornerstones of any intelligent entity is the abil- ity to understand how occurrences in the surrounding world influence its own behaviour. Dierent states, or situations, in its environment should be taken into account when reasoning or acting. When dealing with dif- ferent situations, context is the key element used to infer possible actions and information needs. The

Anders Kofod-petersen; Jörg Cassens

2005-01-01

68

MIMOSA: context-aware adaptation for ubiquitous web access  

Microsoft Academic Search

The ubiquitous computing scenario is characterized by heterogeneity of devices used to access services, and by frequent changes\\u000a in the user’s context. Hence, adaptation according to the user’s context and the used devices is necessary to allow mobile\\u000a users to efficiently exploit Internet-based services. In this paper, we present a distributed framework, named MIMOSA, that\\u000a couples a middleware for context-awareness

Delfina Malandrino; Francesca Mazzoni; Daniele Riboni; Claudio Bettini; Michele Colajanni; Vittorio Scarano

2010-01-01

69

Towards context-aware semantic web service discovery through conceptual situation spaces  

Microsoft Academic Search

Context-awareness is highly desired across several application domains. Semantic Web Services (SWS) enable the automatic discovery of distributed Web services based on comprehensive semantic representations. However, although SWS technology supports the automatic allocation of resources for a given well- defined task, it does not entail the discovery of appropriate SWS representations for a given situational context. Whereas tasks are highly

Stefan Dietze; Alessio Gugliotta; John Domingue

2008-01-01

70

A smart context-aware mobile monitoring system for heart patients  

Microsoft Academic Search

Patient context awareness is an important concept for application services in mHealth environments. In this paper we present a multisensors system that uses a rule-based DSS able to enhance the accuracy of potentially dangerous Heart Rate variability by taking into account patient context information. We have designed and implemented an intelligent system that allows receiving data from several sensors and

Giovanna Sannino; Giuseppe De Pietro

2011-01-01

71

Advanced Medical Video Services through Context-Aware Medical Networks  

Microsoft Academic Search

The aim of this paper is to present a framework for advanced medical video delivery services, through network and patient-state awareness. Under this scope a context-aware medical networking platform is described. The developed platform enables proper medical video data coding and transmission according to both a) network availability and\\/or quality and b) patient status, optimizing thus network performance and telediagnosis.

Charalampos N. Doukas; Ilias Maglogiannis; Thomas Pliakas

2007-01-01

72

Siren: Context-aware Computing for Firefighting  

Microsoft Academic Search

Based on an extensive field study of current firefighting practices, we have developed a system called Siren to support tacit communication between firefighters with multiple levels of redundancy in both communication and user alerts. Siren provides a foundation for gathering, integrating, and distributing contextual data, such as location and temperature. It also simplifies the devel- opment of firefighting applications using

Xiaodong Jiang; Nicholas Y. Chen; Jason I. Hong; Kevin Wang; Leila Takayama; James A. Landay

2004-01-01

73

Context Aware Personal Agent for Spiritual Exploration  

Microsoft Academic Search

This paper describes a personal agent to assist users in dealing with personal and psycho-spiritual issues. As Internet-based applications move beyond simple information presentation and social networking, the use of agent technology to create a personal, customized, and comforting presence becomes possible. This ability derives from an agent implementation that can offer thousands of years of spiritual and psychological wisdom

Michael R. Neal; d'Armond L. Speers

2009-01-01

74

Body Sensor Network Based Context-Aware QRS Detection  

Microsoft Academic Search

In this paper, a body sensor network (BSN) based context-aware QRS detection scheme is proposed. The algorithm uses the context\\u000a information provided by the body sensor network to improve the QRS detection performance by dynamically selecting those leads\\u000a with the best SNR and taking advantage of the best features of two complementary detection algorithms. The accelerometer data\\u000a from the BSN

Hongxing Wei; Huaming Li; Jindong Tan

75

An ontology for context-aware pervasive computing environments  

Microsoft Academic Search

This document describes COBRA-ONT an ontology for supporting pervasive context-aware systems. COBRA-ONT, expressed in the Web Ontology Language OWL, is a collection of ontologies for describing places, agents, events and their associated properties in an intelligent meeting room domain. This ontology is developed as a part of the Context Broker Architecture (CoBrA), a broker-centric agent architecture that provides knowledge sharing,

HARRY CHEN; TIM FININ; ANUPAM JOSHI

2003-01-01

76

Context-Aware Mobile Computing: Learning Context-Dependent Personal Preferences from a Wearable Sensor Array  

Microsoft Academic Search

Context-aware computing describes the situation where a wearable\\/mobile computer is aware of its user's state and surroundings and modifies its behavior based on this information. We designed, implemented, and evaluated a wearable system which can learn context-dependent personal preferences by identifying individual user states and observing how the user interacts with the system in these states. This learning occurs online

Andreas Krause; Asim Smailagic; Daniel P. Siewiorek

2006-01-01

77

Pragmatic Awareness in ESL and EFL Contexts: Contrast and Development  

ERIC Educational Resources Information Center

The study reported on in this article set out to replicate and extend Bardovi-Harlig and Dornyei's (1998) investigation of pragmatic awareness by addressing two research questions: (a) Do learners in English as a foreign language (EFL) and English as a second language (ESL) contexts display differences in their recognition and rating of pragmatic…

Schauer, Gila A.

2006-01-01

78

Provisioning Context-Aware Advertisements to Wireless Mobile Users  

Microsoft Academic Search

Mobile advertising, which is an area of mobile commerce, is a form of advertising that targets users of handheld wireless devices such as mobile phones and personal digital assistants (PDAs). Given the constraints of such devices, mobile advertisements should be context-aware in the sense that the behaviour of such value-added services is mostly driven by information based on user's location,

Qusay M. Mahmoud

2006-01-01

79

Supporting Pervasive Learning Environments: Adaptability and Context Awareness in Mobile Learning  

Microsoft Academic Search

In the mobile learning context, it is helpful to consider context awareness and adaptivity as two sides of the same coin. The purpose of the adaptivity and context awareness is to better support a variety of learners, given that they may have very different skills and motivations to learn in varying contexts. The recent research on adaptivity and context awareness

Antti Syvänen; Russell Beale; Mike Sharples; Mikko Ahonen; Peter Lonsdale

2005-01-01

80

Privacy in Georeferenced Context-Aware Services: A Survey  

NASA Astrophysics Data System (ADS)

Location based services (LBS) are a specific instance of a broader class of Internet services that are predicted to become popular in a near future: context-aware services. The privacy concerns that LBS have raised are likely to become even more serious when several context data, other than location and time, are sent to service providers as part of an Internet request. This paper provides a classification and a brief survey of the privacy preservation techniques that have been proposed for this type of services. After identifying the benefits and shortcomings of each class of techniques, the paper proposes a combined approach to achieve a more comprehensive solution for privacy preservation in georeferenced context-aware services.

Riboni, Daniele; Pareschi, Linda; Bettini, Claudio

81

A Framework of Context-Awareness Support for Peer Recommendation in the e-Learning Context  

ERIC Educational Resources Information Center

For learners in distributed e-learning environments, it is difficult, but very important, to locate the right peer for collaboration on the right knowledge, at the right time and in the right way. This paper proposes the use of context awareness (CA) to support peer recommendation in the e-learning context. For this purpose, this paper explores…

Zheng, Yanlin; Yano, Yoneo

2007-01-01

82

From Genre Awareness to Cross-Genre Awareness: A Study in an EFL Context  

ERIC Educational Resources Information Center

This study aims to capture both how the participants' genre awareness becomes embedded in their stances through genre-based writing instruction in an EFL context and also how viable multi-genre portfolio use is in genre-based EFL writing instruction. The qualitative data were gathered from several sources: (1) the participants' annotations of…

Yayli, Demet

2011-01-01

83

Patient satisfaction in a context-aware hospital guidance system.  

PubMed

This paper presents the design of a system for a context-aware guidance service for hospital outpatients. Many patients have difficulties in knowing what to do and where to go due to the complexity of hospital-related processes and building structures. The intelligent hospital of the future will evolve in a smart way to automatically provide patients' smart mobile devices with relevant guidance information regarding their tasks, location, and process. In this study, we developed a context-aware-based hospital digital guidance system and evaluated ser satisfaction with respect to outpatient visits. From our pilot experiments with 15 outpatients, they were satisfied with the service. We believe that such a smart system would be a promising model for developing the intelligent hospitals of the future. PMID:22874392

Kim, Eunhye; Yoo, Sooyoung; Hee, Hwang; Park, Hyunchul; Kim, Gunhee; Ha, Sungdo

2012-01-01

84

Efficient Network Management for Context-Aware Participatory Sensing  

Microsoft Academic Search

Participatory sensing is becoming more popular with the help of sensor-embedded smartphones to retrieve context-aware information for users. However, new challenges arise for the maintenance of the energy supply, the support of the quality-of-information (QoI) requirements, and the generation of maximum revenue for network operator, but with sparsely research exposure. This paper proposes a novel efficient network management framework to

Chi Harold Liu; Pan Hui; Chatschick Bisdikian; Joel W. W. Branch; Bo Yang

2011-01-01

85

Context Modelling and Management in Ambient-Aware Pervasive Environments  

Microsoft Academic Search

\\u000a Services in pervasive computing systems must evolve so that they become minimally intrusive and exhibit inherent proactiveness\\u000a and dynamic adaptability to the current conditions, user preferences and environment. Con-text awareness has the potential\\u000a to greatly reduce the human attention and interaction bottlenecks, to give the user the impression that services fade into\\u000a the background, and to support intelligent personalization and

Maria Strimpakou; Ioanna Roussaki; Carsten Pils; Michael Angermann; Patrick Robertson; Miltiades E. Anagnostou

2005-01-01

86

ConChat: a context-aware chat program  

Microsoft Academic Search

ConChat is a context-aware chat program that enriches electronic communication by providing contextual information and resolving potential semantic conflicts between users.ConChat uses contextual information to improve electronic communication. Using contextual cues, users can infer during a conversation what the other person is doing and what is happening in his or her immediate surroundings. For example, if a user learns that

A. Ranganathan; R. H. Campbell; A. Ravi; A. Mahajan

2002-01-01

87

SenSay: A Context-Aware Mobile Phone  

Microsoft Academic Search

SenSay is a context-aware mobile phone that adapts to dynamically changing environmental and physiological states. In addition to manipulating ringer volume, vibration, and phone alerts, SenSay can provide remote callers with the ability to communicate the urgency of their calls, make call suggestions to users when they are idle, and provide the caller with feedback on the current status of

Daniel P. Siewiorek; Asim Smailagic; Junichi Furukawa; Andreas Krause; Neema Moraveji; Kathryn Reiger; Jeremy Shaffer; Fei Lung Wong

2003-01-01

88

CATP: A Context-Aware Transportation Protocol for HTTP  

Microsoft Academic Search

Abstract— The rendering mechanism,used in Web browsers have a significant impact on the user behavior and delay tolerance of retrieval. The head-of-line block- ing phenomena,prevents the browser to render partial re- sults within the HTTP document. This phenomena,stems from two factors: TCP’s in-order data uploading to the browsers and HTML tag matching constraint. We propose a context-aware transportation protocol (CATP)

Huamin Chen; Prasant Mohapatra

2003-01-01

89

SmartRestaurant: mobile payments in context-aware environment  

Microsoft Academic Search

Mobility, context-awareness and payment combined provide a customer with a completely new setting of consuming services at any time and any place. We introduce SmartRestaurant service, which allows customers to use mobile devices for ordering and paying lunches from a nearby campus restaurant beforehand. Further, SmartRestaurant provides the restaurant with means of adjusting the sales with production capacity and prior

Janne Lukkari; Jani Korhonen; Timo Ojala

2004-01-01

90

Supporting information access in a hospital ward by a context-aware mobile electronic patient record  

Microsoft Academic Search

Context-awareness holds promise for improving the utility of software products. Context-aware mobile systems encompass the\\u000a ability to automatically discover and react to changes in an environment. Most contemporary context-aware mobile systems aim\\u000a to support users in private situations, for example, as tourist guides. Thus, we still lack an understanding of the impact\\u000a of context-awareness in professional work situations. In this

Mikael B. Skov; Rune Thaarup Høegh

2006-01-01

91

A Study on Automated Context-aware Access Control Model Using Ontology  

NASA Astrophysics Data System (ADS)

Applications in context-aware computing environment will be connected wireless network and various devices. According to, recklessness access of information resource can make trouble of system. So, access authority management is very important issue both information resource and adapt to system through founding security policy of needed system. But, existing security model is easy of approach to resource through simply user ID and password. This model has a problem that is not concerned about user's environment information. In this paper, propose model of automated context-aware access control using ontology that can more efficiently control about resource through inference and judgment of context information that collect user's information and user's environment context information in order to ontology modeling.

Jang, Bokman; Jang, Hyokyung; Choi, Euiin

92

Adapting Applications in Mobile Terminals Using Fuzzy Context Information  

Microsoft Academic Search

Context-aware appliances are able to take advantage of fusing sensory and application specific information to provide proper\\u000a information for situation, more flexible services, and adaptive user interfaces. Characteristic for mobile devices and their\\u000a users is that they are continuously moving in several simultaneous fuzzy contexts. We present an approach for controlling\\u000a context aware applications in the case of multiple fuzzy

Jani Mäntyjärvi; Tapio Seppänen

2002-01-01

93

A Context-Aware Ubiquitous Learning Environment for Conducting Complex Science Experiments  

ERIC Educational Resources Information Center

Context-aware ubiquitous learning (u-learning) is an innovative approach that integrates wireless, mobile, and context-awareness technologies to detect the situation of learners in the real world and provide adaptive support or guidance accordingly. In this paper, a context-aware u-learning environment is developed for guiding inexperienced…

Hwang, Gwo-Jen; Yang, Tzu-Chi; Tsai, Chin-Chung; Yang, Stephen J. H.

2009-01-01

94

Context-Aware Resource Management in Heterogenous Smart Environments  

NASA Astrophysics Data System (ADS)

An information-theoretic, optimal framework is developed for tracking the residents in a Context-aware Heterogenous Smart Environment. The resident-tracking problem is formulated in terms of weighted entropy. The framework provides an optimal, online learning and prediction of users movement, location as well as most probable path segments from the symbolic domain. Successful prediction helps in on-demand operations of automated indoor devices along the users future paths and locations, thus providing the necessary comfort at a near-optimal cost. Simulation results corroborate the high prediction success, thereby providing resident-comfort while reducing energy consumption and manual operations.

Roy, Abhishek; Saxena, Navrati; Shin, Jitae

95

A context-aware video display scheme for mobile devices  

NASA Astrophysics Data System (ADS)

A fully automatic and computationally efficient method is proposed for intelligent display of soccer video on small multimedia mobile devices. The rapid progress of the multimedia signal processing has contributed to the extensive use of multimedia devices with small LCD panel. With these flourishing mobile devices with small display, the video sequences captured for normal viewing on standard TV or HDTV may give the small-display-viewers uncomfortable experiences in understanding what is happening in a scene. For instance, in a soccer video sequence taken by a longshot camera technique, the tiny objects (e.g., soccer ball and players) may not be clearly viewed on the small LCD panel. Thus, an intelligent display technique is needed for small-display-viewers. To this end, one of the key technologies is to determine region of interest, which is a part of the scene that viewers pay more attention to than other regions. In this paper, we only focus on soccer video display for mobile devices. Instead of taking visual saliency into account, we take domain-specific approach to exploit the characteristics of the soccer video. We propose a context-aware soccer video display scheme, which includes three folds: ground color learning, shot classification, and ROI determination. The experimental results show the propose scheme is capable of context-aware video display on mobile devices.

Seo, Keewon; Kim, Changick

2006-02-01

96

A methodology and a web platform for the collaborative development of context-aware systems.  

PubMed

Information and services personalization is essential for an optimal user experience. Systems have to be able to acquire data about the user's context, process them in order to identify the user's situation and finally, adapt the functionality of the system to that situation, but the development of context-aware systems is complex. Data coming from distributed and heterogeneous sources have to be acquired, processed and managed. Several programming frameworks have been proposed in order to simplify the development of context-aware systems. These frameworks offer high-level application programming interfaces for programmers that complicate the involvement of domain experts in the development life-cycle. The participation of users that do not have programming skills but are experts in the application domain can speed up and improve the development process of these kinds of systems. Apart from that, there is a lack of methodologies to guide the development process. This article presents as main contributions, the implementation and evaluation of a web platform and a methodology to collaboratively develop context-aware systems by programmers and domain experts. PMID:23666131

Martín, David; López-de-Ipiña, Diego; Alzua-Sorzabal, Aurkene; Lamsfus, Carlos; Torres-Manzanera, Emilio

2013-01-01

97

Semantic web technologies to reconcile privacy and context awareness  

Microsoft Academic Search

Increasingly, application developers are looking for ways to provide users with higher levels of personalization that capture different elements of a user's operating context, such as her location, the task that she is currently engaged in, who her colleagues are, etc. While there are many sources of contextual information, they tend to vary from one user to another and also

Fabien L. Gandon; Norman M. Sadeh

2004-01-01

98

Context-Aware Service Composition in a Home Control Gateway  

Microsoft Academic Search

One of the main technical challenges of the pervasive computing is the ability to build applications with the capacity to adapt themselves to their environment. In this paper, we present an open architecture facilitating the development of home services context dynamicity and service ambiguity are dynamically managed by smart composing elements. The architecture is applied and tested in an attractive

Andre Bottaro; Johann Bourcier; Clement Escoffier; Philippe Lalanda

2007-01-01

99

Personalized Context-Aware Ubiquitous Learning System for Supporting Effectively English Vocabulary Learning  

Microsoft Academic Search

With the rapid growth of wireless techniques, the mobile learning by the handheld devices has been gradually considered as a novel learning form. Developing context-aware ubiquitous learning environment can bring the most desired learning services for learners. Accordingly, this study proposed a personalized context-aware ubiquitous english vocabulary learning system which can exploit appropriate context based on learner's location, leisure learning

Chih-ming Chen; Yi-lun Li; Ming-chuan Chen

2007-01-01

100

Web mining based OALF model for context-aware mobile advertising system  

Microsoft Academic Search

Much of the human activity defines information context and it can be effectively used for a matching process of context-aware mobile advertising systems. Although prior context-aware mobile advertising systems employed personalized and context sensitive approaches, they have mostly used simply aggregated user-side context information from sensors and have relied on previously prepared inference rules when performing match-making. There exist limitations

Yuchul Jung; Sungkooc Lim; Jeong-Hwan Kim; Sangki Kim

2009-01-01

101

A context-aware ubiquitous learning environment for conducting complex science experiments  

Microsoft Academic Search

Context-aware ubiquitous learning (u-learning) is an innovative approach that integrates wireless, mobile, and context-awareness technologies to detect the situation of learners in the real world and provide adaptive support or guidance accordingly. In this paper, a context-aware u-learning environment is developed for guiding inexperienced researchers to practice single-crystal X-ray diffraction operations. Experimental results showed that the benefits of this innovative

Gwo-jen Hwang; Tzu-chi Yang; Chin-chung Tsai; Stephen J. H. Yang

2009-01-01

102

An Expert System-based Context-Aware Ubiquitous Learning Approach for Conducting Science Learning Activities  

ERIC Educational Resources Information Center

Context-aware ubiquitous learning has been recognized as being a promising approach that enables students to interact with real-world learning targets with supports from the digital world. Several researchers have indicated the importance of providing learning guidance or hints to individual students during the context-aware ubiquitous learning…

Wu, Po-Han; Hwang, Gwo-Jen; Tsai, Wen-Hung

2013-01-01

103

Context Aware Middleware for Supporting Idea Generation Meetings in Smart Decision Rooms  

Microsoft Academic Search

In a globalized world members of groups may be anywhere, and the need for ubiquitous Idea Generation emerged. This led to two main needs: the creation of Smart Decision Rooms prepared for this new reality and following the Ambient Intelligence paradigm; and the creation of context aware middle- ware. This paper describes OLAVAmI a context aware middle-ware system which was

Carlos Filipe Freitas; Antonio Meireles; Lino Figueiredo; Joao Barroso; Carlos Ramos

2011-01-01

104

A Heuristic Algorithm for Planning Personalized Learning Paths for Context-Aware Ubiquitous Learning  

ERIC Educational Resources Information Center

In a context-aware ubiquitous learning environment, learning systems can detect students' learning behaviors in the real-world with the help of context-aware (sensor) technology; that is, students can be guided to observe or operate real-world objects with personalized support from the digital world. In this study, an optimization problem that…

Hwang, Gwo-Jen; Kuo, Fan-Ray; Yin, Peng-Yeng; Chuang, Kuo-Hsien

2010-01-01

105

Learning in a u-Museum: Developing a Context-Aware Ubiquitous Learning Environment  

ERIC Educational Resources Information Center

Context-awareness techniques can support learners in learning without time or location constraints by using mobile devices and associated learning activities in a real learning environment. Enrichment of context-aware technologies has enabled students to learn in an environment that integrates learning resources from both the real world and the…

Chen, Chia-Chen; Huang, Tien-Chi

2012-01-01

106

Adaptive routing using context-aware agents for networks on chips  

Microsoft Academic Search

In this paper we propose an adaptive routing algorithm which is based on deterministic XY routing algorithm. In our model a switch is a context-aware agent and a network is a society of context-aware agents which are ever learning and adapting to distribute the congestion uniformly and isolate the malformed switches (agents). In conventional XY routing, first, the load in

Mohsen Nickray; Masood Dehyadgari; Ali Afzali-kusha

2009-01-01

107

A Context-Aware Ranking Method based on Prediction of Important Parameters for a User  

Microsoft Academic Search

We propose a context-aware ranking method which can rank recommendation items appropriating user's current contexts. It is dicult to improve users' satisfaction for information recommendation by standard ranking methods since user's needs change according to the current contexts. In this study, we propose a novel ranking method which predicts what parameters are important for the user at each context from

Kenta OKU; Hirokazu KATO

2008-01-01

108

Agile Application-Aware Adaptation for Mobility  

Microsoft Academic Search

In this paper we show that application-aware adaptation, a collaborative partnership between the operating system and applications, offers the most general and effective approach to mobile information access. We describe the design of Odyssey, a prototype implementing this approach, and show how it supports concurrent execution of diverse mobile ap- plications. We identify agility as a key attribute of adap-

Brian D. Noble; Mahadev Satyanarayanan; Dushyanth Narayanan; James Eric Tilton; Jason Flinn; Kevin R. Walker

1997-01-01

109

Context Aware Multiparty Session Support for Adaptive Multicasting in Heterogeneous Mobile Networks  

NASA Astrophysics Data System (ADS)

The paper addresses the issue of achieving context-aware, adaptive multiparty sessions in a heterogeneous system by illustrating how to add elements of adaptivity and context-awareness to the session management functionality of such systems. The effective usage of situation/context information can lead to context-aware content casting, especially context-aware, adaptive multicasting. Therefore, regarding the multicast service, the key functionality of the enhanced session management is to create network subgroups based on network information as well as general user and environment context information to the extent that these are considered necessary for forming network-efficient groups, and in turn communicating the characteristics of these subgroups in the form of content stream descriptions to the media delivery function for obtaining the appropriate content for each subgroup.

Antoniou, Josephine; Riede, Christian; Pinto, Filipe Cabral; Pitsillides, Andreas

110

Enabling network-aware applications  

SciTech Connect

Many high performance distributed applications use only a small fraction of their available bandwidth. A common cause of this problem is not a flaw in the application design, but rather improperly tuned network settings. Proper tuning techniques, such as setting the correct TCP buffers and using parallel streams, are well known in the networking community, but outside the networking community they are infrequently applied. In this paper, we describe a service that makes the task of network tuning trivial for application developers and users. Widespread use of this service should virtually eliminate a common stumbling block for high performance distributed applications.

Tierney, Brian L.; Gunter, Dan; Lee, Jason; Stouffer, Martin

2001-08-01

111

Context-Aware Based Efficient Training System Using Augmented Reality and Gravity Sensor for Healthcare Services  

NASA Astrophysics Data System (ADS)

As augmented reality and a gravity sensor is of growing interest, siginificant developement is being made on related technology, which allows application of the technology in a variety of areas with greater expectations. In applying Context-aware to augmented reality, it can make useful programs. A traning system suggested in this study helps a user to understand an effcienct training method using augmented reality and make sure if his exercise is being done propery based on the data collected by a gravity sensor. Therefore, this research aims to suggest an efficient training environment that can enhance previous training methods by applying augmented reality and a gravity sensor.

Kim, Seoksoo; Jung, Sungmo; Song, Jae-Gu; Kang, Byong-Ho

112

Framework for context-aware smartphone applications  

Microsoft Academic Search

This paper presents research and development of a dedicated system architecture, designed to enable its users to interact\\u000a with each other as well as to access information on points of interest that exist in their immediate environment. This is\\u000a accomplished through managing personal preferences and contextual information in a distributed manner and in real time. The\\u000a advantage of this system

Stelios Papakonstantinou; Vesna Brujic-okretic

2009-01-01

113

Service-Based Development of Context-Aware Automotive Telematics Systems  

Microsoft Academic Search

Automotive software has increasingly become context-aware and adaptive to deal with dynamically changing environments. This paper presents our novel service-based approach to support the structural and behavioral adaptation of automotive telematics. We adopt services to (1) provide physical context facts and (2) facilitate context-aware interactions between entities of automotive telematics systems. In this paper, we introduce a layered architecture of

Minh H. Tran; Alan W. Colman; Jun Han

2010-01-01

114

An Infrastructure to Enable Lightweight Context-Awareness for Mobile Users  

PubMed Central

Mobile phones enable us to carry out a wider range of tasks every day, and as a result they have become more ubiquitous than ever. However, they are still more limited in terms of processing power and interaction capabilities than traditional computers, and the often distracting and time-constricted scenarios in which we use them do not help in alleviating these limitations. Context-awareness is a valuable technique to address these issues, as it enables to adapt application behaviour to each situation. In this paper we present a context management infrastructure for mobile environments, aimed at controlling context information life-cycle in this kind of scenarios, with the main goal of enabling application and services to adapt their behaviour to better meet end-user needs. This infrastructure relies on semantic technologies and open standards to improve interoperability, and is based on a central element, the context manager. This element acts as a central context repository and takes most of the computational burden derived from dealing with this kind of information, thus relieving from these tasks to more resource-scarce devices in the system.

Curiel, Pablo; Lago, Ana B.

2013-01-01

115

A Three-Dimensional Context-Awareness Model for Peer Recommendation in the E-Learning Context  

ERIC Educational Resources Information Center

It is widely recognized that peer interaction is valuable for improving learning and achievement. This article proposes a three-dimensional context-awareness (CA) model to help learners in distributed e-learning settings to find suitable peers for potential collaboration. Based on the recognition of the e-learning context that involves the…

Zheng, Yanlin; Li, Luyi

2008-01-01

116

HiCon: a hierarchical context monitoring and composition framework for next-generation context-aware services  

Microsoft Academic Search

This paper presents a hierarchical context monitoring and composition framework that effectively supports next generation context aware services. The upcoming ubiquitous space will be covered with innumerable sensors and tiny devices, which ceaselessly pump out a huge volume of data over the space. While these prevalent data give us an opportunity for numerous proactive and intelligent services, the services require

Kyungmin Cho; Inseok Hwang; Seungwoo Kang; Byoungjip Kim; Jinwon Lee; Sang Jeong Lee; Junehwa Song; Yunseok Rhee

2008-01-01

117

Study on the Context-Aware Middleware for Ubiquitous Greenhouses Using Wireless Sensor Networks  

PubMed Central

Wireless Sensor Network (WSN) technology is one of the important technologies to implement the ubiquitous society, and it could increase productivity of agricultural and livestock products, and secure transparency of distribution channels if such a WSN technology were successfully applied to the agricultural sector. Middleware, which can connect WSN hardware, applications, and enterprise systems, is required to construct ubiquitous agriculture environment combining WSN technology with agricultural sector applications, but there have been insufficient studies in the field of WSN middleware in the agricultural environment, compared to other industries. This paper proposes a context-aware middleware to efficiently process data collected from ubiquitous greenhouses by applying WSN technology and used to implement combined services through organic connectivity of data. The proposed middleware abstracts heterogeneous sensor nodes to integrate different forms of data, and provides intelligent context-aware, event service, and filtering functions to maximize operability and scalability of the middleware. To evaluate the performance of the middleware, an integrated management system for ubiquitous greenhouses was implemented by applying the proposed middleware to an existing greenhouse, and it was tested by measuring the level of load through CPU usage and the response time for users’ requests when the system is working.

Hwang, Jeonghwang; Yoe, Hyun

2011-01-01

118

A Quality of Context-Aware Approach to Access Control in Pervasive Environments  

NASA Astrophysics Data System (ADS)

The widespread diffusion of wireless-enabled portable devices creates novel opportunities for users to share resources anywhere and anytime, but makes access control a crucial issue. User/device mobility and heterogeneity, together with network topology and conditions variability, complicate access control and call for novel solutions to dynamically adapt access decisions to the different operating conditions. Several research efforts have emerged in recent years that propose to exploit context-awareness to control access to resources based on context visibility and changes. Context-based access control requires, however, to take into account the quality of context information used to drive access decisions (QoC). Quality of context has in fact a profound impact on the correct behavior of any context-aware access control framework. Using context information with insufficient quality might increase the risk of incorrect access control decisions, thus leading to dangerous security breaches in resource sharing. In this paper we propose a QoC-aware approach to access control for anywhere, anytime resource sharing. The paper describes the design, implementation and evaluation of the Proteus policy framework, which combines two design guidelines to enable dynamic adaptation of policies depending on context changes: context-awareness with QoC guarantees and semantic technologies to allow high-level description of context/policy specification and reasoning about context/policies.

Toninelli, Alessandra; Corradi, Antonio; Montanari, Rebecca

119

Exploring the Behavioural Effect of Location-Awareness within the Social Context of Rendezvousing  

Microsoft Academic Search

This paper presents an exploratory field study investigating the behavioral effects of mobile location-aware computing within the social context of rendezvousing. We introduce a study where participants took part in one of three mobile device conditions (a mobile phone, a location-aware handheld or both a mobile phone and a location-aware handheld) and completed three different rendezvousing scenarios. We discuss the

David Dearman; Kirstie Hawkey

120

A context-aware e-health framework for students with moderate intellectual and learning disabilities  

Microsoft Academic Search

In this paper we address the challenges of adding context-awareness to e-Health systems for students with moderate learning and intellectual disability. Our proposed framework provides a personalized e-Health environment containing context- aware learning media, services and user interface to deal with individuals with disability. The framework adapts accessibility as well as user interfaces dynamically based on user disability. We present

Rajwa Alharthi; Rania Albalawi; Mahmud Abdo; Abdulmotaleb El Saddik

2011-01-01

121

A component architecture for an extensible, highly integrated context-aware computing infrastructure  

Microsoft Academic Search

Ubiquitous context-aware computing systems present several challenges in their construction. Principal among them is the tradeoff between easily providing new context-aware services to users and the tight integration of those services, as demanded by the small form factor of the devices typically found in ubiquitous computing environments. Performance issues further complicate the management of this tradeoff.Mechanisms have been proposed and

William G. Griswold; Robert T. Boyer; Steven W. Brown; Tan Minh Truong

2003-01-01

122

Context-aware access control for pervasive access to process-based healthcare systems.  

PubMed

Healthcare is an increasingly collaborative enterprise involving a broad range of healthcare services provided by many individuals and organizations. Grid technology has been widely recognized as a means for integrating disparate computing resources in the healthcare field. Moreover, Grid portal applications can be developed on a wireless and mobile infrastructure to execute healthcare processes which, in turn, can provide remote access to Grid database services. Such an environment provides ubiquitous and pervasive access to integrated healthcare services at the point of care, thus improving healthcare quality. In such environments, the ability to provide an effective access control mechanism that meets the requirement of the least privilege principle is essential. Adherence to the least privilege principle requires continuous adjustments of user permissions in order to adapt to the current situation. This paper presents a context-aware access control mechanism for HDGPortal, a Grid portal application which provides access to workflow-based healthcare processes using wireless Personal Digital Assistants. The proposed mechanism builds upon and enhances security mechanisms provided by the Grid Security Infrastructure. It provides tight, just-in-time permissions so that authorized users get access to specific objects according to the current context. These permissions are subject to continuous adjustments triggered by the changing context. Thus, the risk of compromising information integrity during task executions is reduced. PMID:18487810

Koufi, Vassiliki; Vassilacopoulos, George

2008-01-01

123

A Knowledge-Based Approach to Retrieving Teaching Materials for Context-Aware Learning  

ERIC Educational Resources Information Center

With the rapid development of wireless communication and sensor technologies, ubiquitous learning has become a promising solution to educational problems. In context-aware ubiquitous learning environments, it is required that learning content is retrieved according to environmental contexts, such as learners' location. Also, a learning content…

Shih, Wen-Chung; Tseng, Shian-Shyong

2009-01-01

124

CONTEXT-AWARE PLATFORM FOR LONG-TERM LIFE STYLE MANAGEMENT AND MEDICAL SIGNAL ANALYSIS  

Microsoft Academic Search

We present a research platform for combined physiological signal acquisition and context-awareness. This platform seeks to be wearable, it has extended battery life, it offers enough computational power to run context-recognition algorithms and it is flexible so that a variable number of sensors can be added to it. So far the system is composed of a wearable physiological signal acquisition

Marc Bächlin; Daniel Roggen; Gerhard Tröster

125

Trust Management Model and Architecture for Context-Aware Service Platforms  

Microsoft Academic Search

The entities participating in a context-aware serv ice platform need to establish and manage trust relationships in order t o assert different trust aspects including identity provisioning, privacy enforcemen t, and context information provisioning. Current trust management models address these trust aspects individually when in fact they are dependent on eac h other. In this paper we identify and analyze

Ricardo Neisse; Maarten Wegdam; Marten Van Sinderen; Gabriele Lenzini

2007-01-01

126

Context-Awareness in Wearable and Ubiquitous Computing  

Microsoft Academic Search

A common focus shared by researchers in mobile, ubiquitous and wearable computing is the attempt to break away from the traditional desktop computing paradigm. Computational services need to become as mobile as their users and be extended to take advantage of the constantly changing context in which they are accessed. This paper will report on work done in the Future

Gregory D. Abowd; Anind K. Dey; Robert Orr; Jason A. Brotherton

1997-01-01

127

Context aware inactivity recognition for visual fall detection  

Microsoft Academic Search

This paper introduces a method for automatic fall detection, targeted towards the monitoring of elderly people in a nursing home or in their natural home environment. The method uses information extracted from images obtained using novel 3D camera technology, combined with a context model. Visual information consists of body orientation calculated from posture extraction and of periods of inactivity. The

Bart Jansen; Rudi Deklerck

2006-01-01

128

Flexible Macroblock Ordering for Context-Aware Ultrasound Video Transmission over Mobile WiMAX  

PubMed Central

The most recent network technologies are enabling a variety of new applications, thanks to the provision of increased bandwidth and better management of Quality of Service. Nevertheless, telemedical services involving multimedia data are still lagging behind, due to the concern of the end users, that is, clinicians and also patients, about the low quality provided. Indeed, emerging network technologies should be appropriately exploited by designing the transmission strategy focusing on quality provision for end users. Stemming from this principle, we propose here a context-aware transmission strategy for medical video transmission over WiMAX systems. Context, in terms of regions of interest (ROI) in a specific session, is taken into account for the identification of multiple regions of interest, and compression/transmission strategies are tailored to such context information. We present a methodology based on H.264 medical video compression and Flexible Macroblock Ordering (FMO) for ROI identification. Two different unequal error protection methodologies, providing higher protection to the most diagnostically relevant data, are presented.

Martini, Maria G.; Hewage, Chaminda T. E. R.

2010-01-01

129

Unconscious conflicts in unconscious contexts: The role of awareness and timing in flexible conflict adaptation.  

PubMed

Humans adapt to context-specific frequencies of response conflicts. Typically, the impact of conflict-inducing information is reduced in contexts with high compared to low frequency of conflict. We investigated how such context-specific conflict adaptation depends on awareness and timing of conflict-eliciting stimuli and conflict-signaling contexts. In a priming paradigm, we varied the visibility of the prime and whether the context is a feature of either prime or target. Concretely, the context was represented by the format of either prime (Experiment 1) or target (Experiment 2), which means that primes or targets of a particular format were associated with a high or low probability of conflict (i.e., prime-target incongruency). In both experiments, we found a context-specific modulation of congruency effects, both with masked and visible primes. To control for mechanisms of event learning in Experiments 3 and 4, context-specific conflict frequency was realized by inducing trials, while stimuli in test trials were associated with equal conflict frequency. We again found a context-specific congruency modulation when the prime represented the context, most interestingly also with masked primes within test trials. When the target represented the context, however, such a modulation occurred with visible primes, but not with masked primes. These results provide a compelling case for the unconscious exertion of a very flexible form of cognitive control. Context-specific conflict adaptation processes can basically operate independently of both conflict awareness and context awareness, but they depend on close temporal proximity of context and conflict information. (PsycINFO Database Record (c) 2014 APA, all rights reserved). PMID:24708397

Reuss, Heiko; Desender, Kobe; Kiesel, Andrea; Kunde, Wilfried

2014-08-01

130

SenSay: A Context-Aware Mobile Phone  

NSDL National Science Digital Library

Mobile phone users must be conscious of their phone's settings wherever they go, and are required to adjust settings such as ring volume and vibration depending on the surrounding environment. This research paper introduces SenSay, an intelligent mobile phone system developed at Carnegie Mellon University that is designed to eliminate the constant attention required by current mobile phones. "It adapts to dynamically changing environmental and physiological states and also provides the remote caller information on the current context of the phone user." The paper outlines the capabilities of SenSay and provides details of the system architecture and implementation.

Furukawa, Junichi; Moraveji, Neema; Reiger, Kathryn; Shaffer, Jeremy; Siewiorek, Daniel P.; Smailagic, Asim, 1950-

131

Context-aware discovery of visual co-occurrence patterns.  

PubMed

Once an image is decomposed into a number of visual primitives, e.g., local interest points or regions, it is of great interests to discover meaningful visual patterns from them. Conventional clustering of visual primitives, however, usually ignores the spatial and feature structure among them, thus cannot discover high-level visual patterns of complex structure. To overcome this problem, we propose to consider spatial and feature contexts among visual primitives for pattern discovery. By discovering spatial co-occurrence patterns among visual primitives and feature co-occurrence patterns among different types of features, our method can better address the ambiguities of clustering visual primitives. We formulate the pattern discovery problem as a regularized k-means clustering where spatial and feature contexts are served as constraints to improve the pattern discovery results. A novel self-learning procedure is proposed to utilize the discovered spatial or feature patterns to gradually refine the clustering result. Our self-learning procedure is guaranteed to converge and experiments on real images validate the effectiveness of our method. PMID:24808348

Hongxing Wang; Junsong Yuan; Ying Wu

2014-04-01

132

Semantic Monitoring and Analyzing Context-aware Collaborative Multimedia Services  

Microsoft Academic Search

Future multimedia applications in complex domains such as cultural heritage management demand the ongoing semantization of multimedia artifacts in communities of practice. These semantization tasks will be realized as web services. In this paper, we present an XMPP-based communication and web service architecture which is able (a) to create, store, annotate, adapt, share, and consume multimedia materials and 3D artifacts

Dominik Renzel; Ralf Klamma

2009-01-01

133

Effects of attention to and awareness of preceding context tones on auditory streaming.  

PubMed

This study determined whether facilitation of auditory stream segregation could occur when facilitating context tones are accompanied by other sounds. Facilitation was measured as the likelihood of a repeated context tone that could match the low (A) or high (B) frequency of a repeating ABA test to increase the likelihood of hearing the test as segregated. We observed this type of facilitation when matching tones were alone, or with simultaneous bandpass noises or continuous speech, neither of which masked the tones. However, participants showed no streaming facilitation when a harmonic complex masked the context tones. Mistuning or desynchronizing the context tone relative to the rest of the complex did not facilitate streaming, despite the fact that the context tone was accessible to awareness and attention. Even presenting the context tone in a separate ear from the rest of the harmonic complex did not facilitate streaming, ruling out peripheral interference. Presenting the test as mistuned or desynchronized tones relative to complex tones eliminated the possibility that timbre changes from context to test interfered with facilitation resulting from the context. These results demonstrate the fragility of streaming facilitation and show that awareness of and attention to the context tones are not sufficient to overcome interference. PMID:24188403

Weintraub, David M; Metzger, Brian A; Snyder, Joel S

2014-04-01

134

Enabling Two Levels of Adaptation: A Framework for Traffic-Aware and Context Management Deployment  

NASA Astrophysics Data System (ADS)

This paper presents a novel approach in that it provides both inter-service adaptation by reconfiguring current available services in reaction to environment changes and intra-service adaptation by selecting the appropriate parameters to best adaptation. A highly scalable JXTA middleware is used in context-aware framework, which provides the unified interfaces for service operating on JXTA so that the services can access directly to the context environment. We experiment some simulations to demonstrate its ability to adaptation.

Chen, Chin-Ling; Wang, Jia-Ching

135

Semantic Technologies for Socially-Enhanced Context-Aware Mobile Learning  

Microsoft Academic Search

In this paper, we present an extended ontological framework, m-LOCO, in which potentials of mobile devices as content delivery\\u000a media have been utilized in the design of a context-aware learning environment, where the learning content and\\/or the learning\\u000a environment are matched to the needs and requirements of the learning context. Moreover, we suggest the affordance of a socially-enhanced\\u000a self-regulated learning

Melody Siadaty; Ty Mey Eap; Jelena Jovanovic; Dragan Gasevic; Carlo Torniai; Marek Hatala

2008-01-01

136

SCATEAgent: Context-Aware Software Agents for Multi-Modal Travel  

Microsoft Academic Search

In this paper we describe our research on an agent-based intelligent, flexible, and context-aware multi-modal traveler information system, SCATEAgent1. The work targets the representation and manipulation of core user, preferences, and context models which facilitate highly-customized and adaptable agents playing key roles in an agent-based Advanced Traveler Information System (ATIS). This ATIS finds and fuses information from multiple sources on

Min Yin; Martin Griss

137

Contexts and Context Awareness in View of the Diagram Predicate Framework  

NASA Astrophysics Data System (ADS)

The paper presents a formal model of entities and of contexts with entry points, and a formal description of the scenarios an entity enters a context and an entity works in a context. Our model is defined within the Diagram Predicate Framework and therefore is automatically generic since any instantiation of the framework results in a special modeling technique including schema-based, graph-based, object-oriented or ontology-based techniques.

Wolter, Uwe; Diskin, Zinovy

138

Conducting Situated Learning in a Context-Aware Ubiquitous Learning Environment  

Microsoft Academic Search

Digital technology is an important factor for the development of modern education systems, especially the wireless communication technology and the sensor technology, which make the evolution of learning environments from Web-based learning to mobile learning or ubiquitous learning. In this paper, a context-aware ubiquitous learning environment which utilizes mobile devices, sensors and wireless networks to conduct situated learning. Moreover, a

Ting-ting Wu; Tzu-chi Yang; Gwo-jen Hwang; Hui-chun Chu

2008-01-01

139

A content-centric, publish-subscribe architecture delivering mobile context-aware health services  

Microsoft Academic Search

The goal of this paper is to report on the design of a novel content-centric future Internet platform that can support added value services incorporating mobility, context awareness and enhanced security and privacy. We present the proposed platform together with a use case study, dealing with the provision of added-value health services, consisting in the safe and accurate management of

Panagiotis K. Gkonis; Charalampos Z. Patrikakis; Angelos-Christos G. Anadiotis; Dimitra I. Kaklamani; Maria Teresa Andrade; Andrea Detti; Giuseppe Tropea; Nicola Blefari Melazzi

2011-01-01

140

An Adaptive Navigation Support System for Conducting Context-Aware Ubiquitous Learning in Museums  

ERIC Educational Resources Information Center

In context-aware ubiquitous learning, students are guided to learn in the real world with personalized supports from the learning system. As the learning resources are realistic objects in the real world, certain physical constraints, such as the limitation of stream of people who visit the same learning object, the time for moving from one object…

Chiou, Chuang-Kai; Tseng, Judy C. R.; Hwang, Gwo-Jen; Heller, Shelly

2010-01-01

141

A context-aware recommendation system considering both user preferences and learned behavior  

Microsoft Academic Search

Context awareness is an important aspect to be considered for intelligent recommendation systems. In this paper we consider the TV recommendation scenario. We argue that content-based recommendation is best suited for an environment where a database of similar user's ratings of the program is not available. Also, it is important to consider both user preferences as well as learned user

Debnath Mukherjee; Snehasis Banerjee; Siddharth Bhattacharya; Prateep Misra

2011-01-01

142

Design and implementation of baby-care service based on context-awareness for digital home  

Microsoft Academic Search

In this paper, we design and implement baby-care service based on context-awareness in digital home, where sensors are widespread for collecting raw data and a home server exists for triggering automatic services according to the baby's situation. We describe a scenario and techniques, design and implement system architecture and service flows for this service. Using our scheme, we can take

HyunJeong Lee; Shin Young Lim; JaeDoo Huh

2005-01-01

143

Opportunities and issues relating to middleware technologies for context-aware services  

Microsoft Academic Search

Much business and technical attention is being paid to the potential for new services in a ubiquitous computing environment. One of the probable features of these sendees is 'context-awareness', which is made possible by using information from the physical environment through sensors. This paper provides an overview of the opportunities for new sendees and the requirements for middleware technologies. The

Shigetoshi Sameshima; Hiroaki Kawamichi; Hiromitsu Kato; Takaaki Sekiguchi; Hiroyuki Morikawa; Kazunori Takashio; Hideyuki Tokuda

2004-01-01

144

Using CALL in a Formal Learning Context to Develop Oral Language Awareness in ESL: An Assessment  

ERIC Educational Resources Information Center

French learners at university meet difficulties in the comprehension of oral English. Being in a formal context of language learning, they need to develop language awareness to compensate for insufficient exposure to the English language. To meet the students' needs, data was collected in order to pinpoint the main errors made by French learners…

Vincent-Durroux, Laurence; Poussard, Cecile; Lavaur, Jean-Marc; Aparicio, Xavier

2011-01-01

145

A Context Awareness Architecture for Mobile Learning Based on Fuzzy Petri Nets  

Microsoft Academic Search

The portability and immediate communication properties of mobile devices influence the learning processes in accessing resources and transferring data. The strength of mobile learning is the personalization and mobility; therefore it must support the availability of sensing contextual information about the learner and provide the learning content with mobile metadata. Based on fuzzy Petri nets, a context awareness architecture for

Jian Pan; Zhongdong Huang; Guohong Mao; Jinxiang Dong

2006-01-01

146

Privacy protected life-context-aware alert by simplified sound spectrogram from microphone sensor  

Microsoft Academic Search

This paper introduces a design of life-context-aware alert system from multiple small microphone sensors at various places in home. In order to support the comfortable daily lives of elderly people who live alone, it is important to know their daily activities in home without privacy exposure. In the case of their emergency appeared from overwatching data, the system must alert

Tomoko Yonezawa; Naoki Okamoto; Hirotake Yamazoe; Shinji Abe; Fumio Hattori; Norihiro Hagita

2011-01-01

147

College Students' Conceptions of Context-Aware Ubiquitous Learning: A Phenomenographic Analysis  

ERIC Educational Resources Information Center

The purpose of this study was to explore students' conceptions of context-aware ubiquitous learning (u-learning). The students participated in a u-learning exercise using PDAs equipped with RFID readers. The data were collected from individual interviews with each of the students by a trained researcher, and the responses of the interviewees were…

Tsai, Pei-Shan; Tsai, Chin-Chung; Hwang, Gwo-Haur

2011-01-01

148

MUSICAE, an infrastructure for MUlti-Surface Interaction in Context Aware Environment  

Microsoft Academic Search

With the advent of wireless networking and mobile devices such as personal organizers, users can always have their computer and their personal data with them. In addition, the user environment is augmented by sensors, and offers interaction resources (like wall-sized augmented surfaces) that users may use. Therefore, new challenges on software functionalities emerge, such as context- awareness and dynamic discovery

Christophe Lachenal; Gaëtan Rey; Nicolas Barralon

149

Context-Awareness in a Service Oriented e-Health Platform  

Microsoft Academic Search

\\u000a This work presents a lightweight inference system deployed in a Service Oriented Architecture for e-Health. Modules of an\\u000a Ambient Assisted Living platform are presented and how to add Context Awareness to this platform is explained. An example\\u000a of a complete workflow is presented in a real-case scenario.

P. García-Sánchez; S. González; A. Rivadeneyra; M. P. Palomares; J. González

150

Regional Wireless Network Platform for Context-Aware Services and Its Implementation  

Microsoft Academic Search

NerveNet is a concept of regional wireless access platform where multiple service providers can provide their own services with the shared use of the network and sensors, making various context-aware services practical. It works as the nervous system of the human beings. Densely located, interconnected access points with database and data processing unit will provide mobility to terminals without a

Yasunori Owada; Masugi Inoue; Masaaki Ohnishi

2011-01-01

151

Criteria, Strategies and Research Issues of Context-Aware Ubiquitous Learning  

ERIC Educational Resources Information Center

Recent progress in wireless and sensor technologies has lead to a new development of learning environments, called context-aware ubiquitous learning environment, which is able to sense the situation of learners and provide adaptive supports. Many researchers have been investigating the development of such new learning environments; nevertheless,…

Hwang, Gwo-Jen; Tsai, Chin-Chung; Yang, Stephen J. H.

2008-01-01

152

Augmenting Traditional Books with Context-Aware Learning Supports from Online Learning Communities  

ERIC Educational Resources Information Center

Recent advances in ubiquitous computing technologies have brought reality augmentation of traditional objects to context-aware and social supports. Although a significant proportion of students prefer poring over traditional paper textbooks over electronic books, few studies have enhanced reading practice of traditional books with ubiquitous…

Chen, Gwo-Dong; Chao, Po-Yao

2008-01-01

153

Context-Aware Task Prompting: Sustaining of Supported Employment for People with Severe Mental Illness  

Microsoft Academic Search

In collaboration with NGOs dedicated to supported employment programs, a novel context-aware task prompting system (CATPro) is presented in this research to increase work and life independence for cognitive-impaired patients such as people with traumatic brain injury, cerebral palsy, mental retardation, schizophrenia, dementia, and Alzheimer's disease. Preliminary results show the prototype is very reliable and accurate with 100% prompting success.

Yao-Jen Chang; Hsin Yu Hsu; Wan Chih Chang; Shu-Min Peng; Yan-Ru Chen; Tsen Yun Wang

2009-01-01

154

Context and task-aware knowledge-enhanced compressive imaging  

NASA Astrophysics Data System (ADS)

We describe a foveated compressive sensing approach for image analysis applications that utilizes knowledge of the task to be performed to reduce the number of required measurements compared to conventional Nyquist sampling and compressive sensing based approaches. Our Compressive Optical Foveated Architecture (COFA) adapts the dictionary and compressive measurements to structure and sparsity in the signal, task, and scene by reducing measurement and dictionary mutual coherence and increasing sparsity using principles of actionable information and foveated compressive sensing. Actionable information is used to extract task-relevant regions of interest (ROIs) from a low-resolution scene analysis by eliminating the effects of nuisances for occlusion and anomalous motion detection. From the extracted ROIs, preferential measurements are taken using foveation as part of the compressive sensing adaptation process. The task-specific measurement matrix is optimized by using a novel saliency-weighted coherence minimization with respect to the learned signal dictionary. This incorporates the relative usage of the atoms in the dictionary. Therefore, the measurement matrix is not random, as in conventional compressive sensing, but is based on the dictionary structure and atom distributions. We utilize a patch-based method to learn the signal priors. A treestructured dictionary of image patches using KSVD is learned which can sparsely represent any given image patch with the tree-structure. We have implemented COFA in an end-to-end simulation of a vehicle fingerprinting task for aerial surveillance using foveated compressive measurements adapted to hierarchical ROIs consisting of background, roads, and vehicles. Our results show 113x reduction in measurements over conventional sensing and 28x reduction over compressive sensing using random measurements.

Rao, Shankar; Ni, Kang-Yu; Owechko, Yuri

2013-09-01

155

Context-aware brain-computer interfaces: exploring the information space of user, technical system and environment  

NASA Astrophysics Data System (ADS)

Brain-computer interface (BCI) systems are usually applied in highly controlled environments such as research laboratories or clinical setups. However, many BCI-based applications are implemented in more complex environments. For example, patients might want to use a BCI system at home, and users without disabilities could benefit from BCI systems in special working environments. In these contexts, it might be more difficult to reliably infer information about brain activity, because many intervening factors add up and disturb the BCI feature space. One solution for this problem would be adding context awareness to the system. We propose to augment the available information space with additional channels carrying information about the user state, the environment and the technical system. In particular, passive BCI systems seem to be capable of adding highly relevant context information—otherwise covert aspects of user state. In this paper, we present a theoretical framework based on general human-machine system research for adding context awareness to a BCI system. Building on that, we present results from a study on a passive BCI, which allows access to the covert aspect of user state related to the perceived loss of control. This study is a proof of concept and demonstrates that context awareness could beneficially be implemented in and combined with a BCI system or a general human-machine system. The EEG data from this experiment are available for public download at www.phypa.org. Parts of this work have already been presented in non-journal publications. This will be indicated specifically by appropriate references in the text.

Zander, T. O.; Jatzev, S.

2012-02-01

156

IQ-Services: Resource-Aware Middleware for Heterogeneous Applications  

Microsoft Academic Search

Heterogeneous computing platforms constitute a challenging execution environment for distributed applications. This paper presents a 'systems' view of effective platform usage, by demonstrating the need for application software to be continuously 'aware' of the resources currently available on their underlying heterogeneous computing plat- forms. Our approach to the implementation of resource awareness is one that (1) provides a 'thin' middleware

Zhongtang Cai; Greg Eisenhauer; Christian Poellabauer; Karsten Schwan; Matthew Wolf

2004-01-01

157

Acoustic Environment Classification Based on SMV Speech Codec Parameters for Context-Aware Mobile Phone  

NASA Astrophysics Data System (ADS)

In this letter, an acoustic environment classification algorithm based on the 3GPP2 selectable mode vocoder (SMV) is proposed for context-aware mobile phones. Classification of the acoustic environment is performed based on a Gaussian mixture model (GMM) using coding parameters of the SMV extracted directly from the encoding process of the acoustic input data in the mobile phone. Experimental results show that the proposed environment classification algorithm provides superior performance over a conventional method in various acoustic environments.

Lee, Kye-Hwan; Chang, Joon-Hyuk

158

Design of Intelligence Mobile Cloud Service Platform Based Context-Aware  

Microsoft Academic Search

\\u000a Mobile Cloud Computing has become as a new IT paradigm because of the growth of mobile device like smartphone and appearance\\u000a of Cloud Computing environment. This Mobile Cloud environment provides various services and IT resources according to users’\\u000a requests, so an effective management of service and IT resources is required. Hence, this paper designs a context-aware knowledge\\u000a Mobile Cloud service

Hyokyung Chang; Euiin Choi

159

A Context-Aware Service Discovery Consideration in 6LoWPAN  

Microsoft Academic Search

To make the revelation of ubiquity true different kind of network's integration is going on and this assimilation makes service discovery more challenging because different types of service discovery have been develop for the particular network. A Context-Aware Service Discovery for these amalgam networks is different from usual, especially when we talk about 6LoWPANs functioning with IP Networks, as 6LoWPAN

Sajjad Hussain Chauhdary; MinYu Cui; Jung Hwan Kim; A. K. Bashir; M.-S. Park

2008-01-01

160

Context-aware 3D visualization and collaboration services for ubiquitous cars using augmented reality  

Microsoft Academic Search

Context-aware, ubiquitous computing is a vision of our future computing lifestyle in which computer systems seamlessly integrate\\u000a into our everyday lives, providing services and information in anywhere and anytime fashion. Augmented reality (AR) can naturally\\u000a complement ubiquitous computing by providing an intuitive and collaborative visualization and simulation interface to a three-dimensional\\u000a information space embedded within physical reality. This paper presents

Jae Yeol Lee; Guewon Rhee

2008-01-01

161

Contextual Semantic: A Context-aware Approach for Semantic Web Based Data Extraction from Scientific Articles  

NASA Astrophysics Data System (ADS)

The paper explores whether the semantic context is good enough to cope with ever increasing number of available resources in different repositories including the web. Here a problem of identifying authors of scientific papers is used as an example. A set of problem still do arise in case we apply exclusively the semantic context. Fortunately contextual semantic can be used to derive more information required to separate ambiguous cases. Semantic tags, well-structured documents and available databases of articles do provide a possibility to be more context-aware. Under the context we use co-authors names, references and headers to extract key-words and identify the subject. The real complexity of the considering problem comes from the dynamical behaviour of authors as they can change the topic of the research in the next paper. As the final judge the paper proposes applying words usage patterns analysis. Final the contextual intelligence engine is described.

Kumlander, Deniss

162

Context-Aware Mobile Collaborative Systems: Conceptual Modeling and Case Study  

PubMed Central

A Mobile Collaborative System (MCOS) enable the cooperation of the members of a team to achieve a common goal by using a combination of mobile and fixed technologies. MCOS can be enhanced if the context of the group of users is considered in the execution of activities. This paper proposes a novel model for Context-Aware Mobile COllaborative Systems (CAMCOS) and a functional architecture based on that model. In order to validate both the model and the architecture, a prototype system in the tourism domain was implemented and evaluated.

Benitez-Guerrero, Edgard; Mezura-Godoy, Carmen; Montane-Jimenez, Luis G.

2012-01-01

163

User centered design of context aware cell phones in human-centric systems  

Microsoft Academic Search

User research in software development and engineering design processes has gained unprecedented popularity due to the realization that knowing about users, their preferences, characteristics, and environments is highly useful in the design of effective user and human centric systems. Current human centric systems are intelligent, responsive, emotive and aware, and their capabilities and applications continue to increase rapidly. Due to

Ashish Godbole; Seung-yun Kim

2010-01-01

164

Military Cultural Awareness: From Anthropology to Application.  

National Technical Information Service (NTIS)

In the mid-1990s, Marine General Anthony Zinni began making the case for the necessity of military cultural awareness as a force multiplier. General Zinni was then reacting to the challenge of resolving tribal conflict in Somalia and considering the poten...

J. W. Jandora

2006-01-01

165

Context-Aware and Locality-Constrained Coding for Image Categorization  

PubMed Central

Improving the coding strategy for BOF (Bag-of-Features) based feature design has drawn increasing attention in recent image categorization works. However, the ambiguity in coding procedure still impedes its further development. In this paper, we introduce a context-aware and locality-constrained Coding (CALC) approach with context information for describing objects in a discriminative way. It is generally achieved by learning a word-to-word cooccurrence prior to imposing context information over locality-constrained coding. Firstly, the local context of each category is evaluated by learning a word-to-word cooccurrence matrix representing the spatial distribution of local features in neighbor region. Then, the learned cooccurrence matrix is used for measuring the context distance between local features and code words. Finally, a coding strategy simultaneously considers locality in feature space and context space, while introducing the weight of feature is proposed. This novel coding strategy not only semantically preserves the information in coding, but also has the ability to alleviate the noise distortion of each class. Extensive experiments on several available datasets (Scene-15, Caltech101, and Caltech256) are conducted to validate the superiority of our algorithm by comparing it with baselines and recent published methods. Experimental results show that our method significantly improves the performance of baselines and achieves comparable and even better performance with the state of the arts.

2014-01-01

166

Design of an Unattended Monitoring System Using Context-Aware Technologies Based on 3 Screen  

NASA Astrophysics Data System (ADS)

More recently, the importance of a multimedia-based monitoring system, keeps growing for the purpose of preventing crimes and, thus, various systems are being released. Nevertheless, most systems are lacking an independent feature of detection but simply saves a video or image. In order to overcome problems, therefore, this study has developed an unattended monitoring system based on a 3 Screen service environment by combining image tracking and analysis technologies, which can extract a human from images, with context-aware technologies using behavior patterns of people tracked and data of a surrounding environment, fully utilizing the wireless network infrastructure that has been increasingly available.

Kim, Seoksoo

167

Context-Aware Mobile Medical Emergency Management Decision Support System for Safe Transportation  

Microsoft Academic Search

\\u000a Management of safe and successful large-scale events requires detailed careful planning and complex system-wide decision making.\\u000a However, research into medical emergency knowledge management for just-in-time decision support in mass gatherings lags behind\\u000a the needs of the community. Unforeseen circumstances, dynamic changes in the environment, various unexpected impact factors\\u000a require immediate, real-time response that can be achieved mainly through context-aware, intelligent

Frada Burstein; Pari Delir Haghighi; Arkady Zaslavsky

168

A Knowledge Plane for Autonomic Context-Aware Wireless Mobile Ad Hoc Networks  

Microsoft Academic Search

Due to the emergence of multimedia context-rich applications and services over wireless networks, networking protocols and\\u000a services are becoming more and more integrated, thus relying on context and application information to operate. Further, wireless\\u000a protocols and services have employed information from several network layers and the environment, breaking the layering paradigm.\\u000a In order to cope with this increasing reliance on

Daniel F. Macedo; Aldri L. Dos Santos; José Marcos S. Nogueira; Guy Pujolle

2008-01-01

169

An Overview of Network-Aware Applications for Mobile Multimedia Delivery  

Microsoft Academic Search

Network-aware Applications is a promising new concept in which applications are aware of network conditions and thus can adapt to the varying environment to achieve acceptable and predictable performance. This paper reviews the current research on network-aware applications, with a focus on their appliance on mobile multimedia applications. First, different frameworks or architectures of network- aware applications are introduced. Research

Jinwei Cao; Dongsong Zhang; Kevin M. Mcneill; Jay F. Nunamaker Jr.

2004-01-01

170

A Study of Context-Awareness RBAC Model Using User Profile on Ubiquitous Computing  

NASA Astrophysics Data System (ADS)

Recently, With the IT technique growth, there is getting formed to convert to ubiquitous environment that means it can access information everywhere and every-time using various devices, and the computer can decide to provide useful services to users. But, in this computing environment will be connected to wireless network and various devices. According to, recklessness approaches of information resource make trouble to system. So, access authority management is very important issue both information resource and adapt to system through founding security policy to need a system. So, this model has a problem that is not concerned about user's context information as user's profile. In this paper suppose to context-awareness RABC model that based on profile about which user's information which provide efficiently access control to user through active classification, inference and judgment about user who access to system and resource.

Jang, Bokman; Park, Sungdo; Chang, Hyokyung; Ahn, Hyosik; Choi, Euiin

171

Model-based formalization of medical knowledge for context-aware assistance in laparoscopic surgery  

NASA Astrophysics Data System (ADS)

The increase of technological complexity in surgery has created a need for novel man-machine interaction techniques. Specifically, context-aware systems which automatically adapt themselves to the current circumstances in the OR have great potential in this regard. To create such systems, models of surgical procedures are vital, as they allow analyzing the current situation and assessing the context. For this purpose, we have developed a Surgical Process Model based on Description Logics. It incorporates general medical background knowledge as well as intraoperatively observed situational knowledge. The representation consists of three parts: the Background Knowledge Model, the Preoperative Process Model and the Integrated Intraoperative Process Model. All models depend on each other and create a concise view on the surgery. As a proof of concept, we applied the system to a specific intervention, the laparoscopic distal pancreatectomy.

Kati?, Darko; Wekerle, Anna-Laura; Gärtner, Fabian; Kenngott, Hannes G.; Müller-Stich, Beat P.; Dillmann, Rüdiger; Speidel, Stefanie

2014-03-01

172

Adaptive and Context-Aware Reconciliation of Reactive and Pro-active Behavior in Evolving Systems  

NASA Astrophysics Data System (ADS)

One distinct characteristics of the context-aware systems is their ability to react and adapt to the evolution of the environment, which is often a result of changes in the values of various (possibly correlated) attributes. Based on these changes, reactive systems typically take corrective actions, e.g., adjusting parameters in order to maintain the desired specifications of the system's state. Pro-active systems, on the other hand, may change the mode of interaction with the environment as well as the desired goals of the system. In this paper we describe our (ECA)2 paradigm for reactive behavior with proactive impact and we present our ongoing work and vision for a system that is capable of context-aware adaptation, while ensuring the maintenance of a set of desired behavioral policies. Our main focus is on developing a formalism that provides tools for expressing normal, as well as defeasible and/or exceptional specification. However, at the same time, we insist on a sound semantics and the capability of answering hypothetical "what-if" queries. Towards this end, we introduce the high-level language L_{ EAR} that can be used to describe the dynamics of the problem domain, specify triggers under the (ECA)2 paradigm, and reason about the consequences of the possible evolutions.

Trajcevski, Goce; Scheuermann, Peter

173

Information Behavior in Dynamic Group Work Contexts: Interwoven Situational Awareness, Dense Social Networks and Contested Collaboration in Command and Control.  

ERIC Educational Resources Information Center

Reports on a study that explores human information behavior in command and control contexts in the military. Highlights include interwoven situational awareness; the need for dense social networks; contested collaboration; and insights into human information behavior in dynamic and complex group work contexts. (Author/LRW)

Sonnenwald, Diane H.; Pierce, Linda G.

2000-01-01

174

Context-Aware Resource Management in Multi-Inhabitant Smart Homes: A Nash H-Learning based Approach  

Microsoft Academic Search

A smart home aims at building intelligence automation with a goal to provide its inhabitants with maximum pos- sible comfort, minimize the resource consumption and thus overall cost of maintaining the home. 'Context Awareness' is perhaps the most salient feature of such an intelligent environment. Clearly, an inhabitant's mobility and activ- ities play a significant role in defining his contexts

Nirmalya Roy; Abhishek Roy; Sajal K. Das

2006-01-01

175

CoCA: A Collaborative Context-Aware Service Platform for Pervasive Computing  

Microsoft Academic Search

A growing interest for pervasive applications and the concern that users should not be disturbed by such services while they are on their regular duty have introduced several new challenges. The behavior of these applications should depend not only on their internal state and user interactions but also on contexts sensed during their execution. In this work, we propose a

Dejene Ejigu; Vasile-marian Scuturici; Lionel Brunie

2007-01-01

176

RFID sensor-tags feeding a context-aware rule-based healthcare monitoring system.  

PubMed

Along with the growing of the aging population and the necessity of efficient wellness systems, there is a mounting demand for new technological solutions able to support remote and proactive healthcare. An answer to this need could be provided by the joint use of the emerging Radio Frequency Identification (RFID) technologies and advanced software choices. This paper presents a proposal for a context-aware infrastructure for ubiquitous and pervasive monitoring of heterogeneous healthcare-related scenarios, fed by RFID-based wireless sensors nodes. The software framework is based on a general purpose architecture exploiting three key implementation choices: ontology representation, multi-agent paradigm and rule-based logic. From the hardware point of view, the sensing and gathering of context-data is demanded to a new Enhanced RFID Sensor-Tag. This new device, de facto, makes possible the easy integration between RFID and generic sensors, guaranteeing flexibility and preserving the benefits in terms of simplicity of use and low cost of UHF RFID technology. The system is very efficient and versatile and its customization to new scenarios requires a very reduced effort, substantially limited to the update/extension of the ontology codification. Its effectiveness is demonstrated by reporting both customization effort and performance results obtained from validation in two different healthcare monitoring contexts. PMID:22083369

Catarinucci, Luca; Colella, Riccardo; Esposito, Alessandra; Tarricone, Luciano; Zappatore, Marco

2012-12-01

177

Terminology challenges implementing the HL7 context-aware knowledge retrieval ('Infobutton') standard  

PubMed Central

Point-of-care information needs are common and frequently unmet. One solution to this problem is the use of Infobuttons, which are context-sensitive links from electronic health records (EHR) to knowledge resources, sometimes involving an intermediate broker known as an Infobutton Manager. Health Level Seven (HL7) has developed the Context-Aware Knowledge Retrieval (Infobutton) standard to standardize the integration between EHR systems and knowledge resources. While the standard specifies a set of context attributes and standard terminologies, it leaves to knowledge resources the flexibility to decide how to use these attributes and terminologies to retrieve the most relevant content. This paper describes some of the challenges faced by knowledge resources in trying to locate the most relevant content based on the attribute values for a given Infobutton request. Various approaches to content retrieval are discussed, including the role of indexing with standardized codes, the role of text-based search engines together with their ranking algorithms, and the role of hybrid approaches. Knowledge resource developers must carefully consider business rules, heuristics, and precision/recall tradeoffs when implementing the HL7 Infobutton standard.

Strasberg, Howard R; Del Fiol, Guilherme; Cimino, James J

2013-01-01

178

Exporting Environment Awareness to Mobile Applications  

Microsoft Academic Search

In mobile computing, factors such as add-on hardware components and heterogeneous networks result in an environment made up of changing resource constraints. An application in such a constrained environment must react to these changes so that available resources are properly utilized. In this paper, we propose an architec- ture to report changes in the environment to interested applications. The architecture

Girish Welling; B. R. Badrinath

179

A Presence-Based Context-Aware Chronic Stress Recognition System  

PubMed Central

Stressors encountered in daily life may play an important role in personal well-being. Chronic stress can have a serious long-term impact on our physical as well as our psychological health, due to ongoing increased levels of the chemicals released in the ‘fight or flight’ response. The currently available stress assessment methods are usually not suitable for daily chronic stress measurement. The paper presents a context-aware chronic stress recognition system that addresses this problem. The proposed system obtains contextual data from various mobile sensors and other external sources in order to calculate the impact of ongoing stress. By identifying and visualizing ongoing stress situations of an individual user, he/she is able to modify his/her behavior in order to successfully avoid them. Clinical evaluation of the proposed methodology has been made in parallel by using electrodermal activity sensor. To the best of our knowledge, the system presented herein is the first one that enables recognition of chronic stress situations on the basis of user context.

Peternel, Klemen; Pogacnik, Matevz; Tavcar, Rudi; Kos, Andrej

2012-01-01

180

A Portable Grid Infrastructure for Resource-Aware Applications  

Microsoft Academic Search

Modern, resource-intensive enterprise and scientific applications are increasingly architected using parallel and distributed components deployed on grid platforms. Grid environments are typically heterogeneous and subject to large load variations. Such characteristics require a portable programming infrastructure and comprehensive support for resource management as well as dynamic adaptation to varying resource availability. Resource-aware applications pro-actively monitor and dynamically adapt their behavior

Michal Wegiel; Grzegorz Czajkowski; Laurent Daynès; Krzysztof Palacz

2006-01-01

181

A mobile device oriented framework for context information management  

Microsoft Academic Search

Recent developments of information technologies are leading the advent of mobile device oriented context-aware applications, which means using context to realize some novel applications on mobile devices. The context-aware application needs a framework for context information management. In this paper, we propose a mobile device oriented framework for context information management to solve the problems on context shortage and communication

Yongkai Zhan; Shuangquan Wang; Zhuang Zhao; Canfeng Chen; Jian Ma

2009-01-01

182

CyberDesk: A Framework for Providing Self-integrating Context-aware Services  

Microsoft Academic Search

Applications are often designed to take advantage of the potential for integration with each other via shared information. Current approaches for integration are limited, effecting both the programmer and end-user. In this paper, we present CyberDesk, a framework for self-integrating software in which integration is driven by user context. It relieves the burden on programmers by removing the necessity to

Anind K. Dey; Gregory D. Abowd; Andrew Wood

1998-01-01

183

A Decision-Tree-Oriented Guidance Mechanism for Conducting Nature Science Observation Activities in a Context-Aware Ubiquitous Learning  

ERIC Educational Resources Information Center

A context-aware ubiquitous learning environment is an authentic learning environment with personalized digital supports. While showing the potential of applying such a learning environment, researchers have also indicated the challenges of providing adaptive and dynamic support to individual students. In this paper, a decision-tree-oriented…

Hwang, Gwo-Jen; Chu, Hui-Chun; Shih, Ju-Ling; Huang, Shu-Hsien; Tsai, Chin-Chung

2010-01-01

184

CARE-CPS: Context-Aware Trust Evaluation for Wireless Networks in Cyber-Physical System Using Policies  

Microsoft Academic Search

A Cyber-Physical System (CPS) involves a tight cou- pling between the physical and computational elements. Security is a key challenge for the deployment of CPS. Therefore, it is highly desirable to extract correct information from a large volume of noisy data and properly evaluate the reputation of reporting devices in CPS. In this paper, we propose a Context- Aware tRust

Wenjia Li; Pramod Jagtap; Laura Zavala; Anupam Joshi; Tim Finin

2011-01-01

185

Review of Self-Awareness and Its Clinical Application in Stroke Rehabilitation  

ERIC Educational Resources Information Center

The objectives of this study were (i) to explore, following a literature review, the concepts of self-awareness, its assessment, and intervention for self-awareness deficits, as well as its clinical significance in stroke rehabilitation; and (ii) to apply the concepts of self-awareness in the context of a rehabilitation program. The search was…

Leung, Daniel P. K.; Liu, Karen P. Y.

2011-01-01

186

Adaptive Context aware and intelligent searching in mobile learning applications  

Microsoft Academic Search

With the fast development of distributed network technology and speeding increase of cable and wireless network bandwidth, information can circulate in computer through various manners and various kinds of carriers for users to access. Therefore, it has now become one of the hottest issues as how network can be used to enrich the living quality of people. This paper will

2010-01-01

187

Web-of-Objects (WoO)-Based Context Aware Emergency Fire Management Systems for the Internet of Things  

PubMed Central

Recent advancements in the Internet of Things (IoT) and the Web of Things (WoT) accompany a smart life where real world objects, including sensing devices, are interconnected with each other. The Web representation of smart objects empowers innovative applications and services for various domains. To accelerate this approach, Web of Objects (WoO) focuses on the implementation aspects of bringing the assorted real world objects to the Web applications. In this paper; we propose an emergency fire management system in the WoO infrastructure. Consequently, we integrate the formation and management of Virtual Objects (ViO) which are derived from real world physical objects and are virtually connected with each other into the semantic ontology model. The charm of using the semantic ontology is that it allows information reusability, extensibility and interoperability, which enable ViOs to uphold orchestration, federation, collaboration and harmonization. Our system is context aware, as it receives contextual environmental information from distributed sensors and detects emergency situations. To handle a fire emergency, we present a decision support tool for the emergency fire management team. The previous fire incident log is the basis of the decision support system. A log repository collects all the emergency fire incident logs from ViOs and stores them in a repository.

Shamszaman, Zia Ush; Ara, Safina Showkat; Chong, Ilyoung; Jeong, Youn Kwae

2014-01-01

188

A Modular Location-Aware Service and Application Platform  

Microsoft Academic Search

Location-Aware applications for supporting the mobile user as well as logistics of movable objects have proven significant relevance for future telecommunication and computing. Based on the state-of-the-art analysis, the paper evaluates the outcome of the labs and the require- ments of commercial usage. A system architecture is proposed from the technical per- spective for localisation, information, communication, and management. The

Tom Pfeifer; Radu Popescu-zeletin

1999-01-01

189

Traffic sign recognition based on a context-aware scale-invariant feature transform approach  

NASA Astrophysics Data System (ADS)

A new context-aware scale-invariant feature transform (CASIFT) approach is proposed, which is designed for the use in traffic sign recognition (TSR) systems. The following issues remain in previous works in which SIFT is used for matching or recognition: (1) SIFT is unable to provide color information; (2) SIFT only focuses on local features while ignoring the distribution of global shapes; (3) the template with the maximum number of matching points selected as the final result is instable, especially for images with simple patterns; and (4) SIFT is liable to result in errors when different images share the same local features. In order to resolve these problems, a new CASIFT approach is proposed. The contributions of the work are as follows: (1) color angular patterns are used to provide the color distinguishing information; (2) a CASIFT which effectively combines local and global information is proposed; and (3) a method for computing the similarity between two images is proposed, which focuses on the distribution of the matching points, rather than using the traditional SIFT approach of selecting the template with maximum number of matching points as the final result. The proposed approach is particularly effective in dealing with traffic signs which have rich colors and varied global shape distribution. Experiments are performed to validate the effectiveness of the proposed approach in TSR systems, and the experimental results are satisfying even for images containing traffic signs that have been rotated, damaged, altered in color, have undergone affine transformations, or images which were photographed under different weather or illumination conditions.

Yuan, Xue; Hao, Xiaoli; Chen, Houjin; Wei, Xueye

2013-10-01

190

High Performance Computing Software Applications for Space Situational Awareness  

NASA Astrophysics Data System (ADS)

The High Performance Computing Software Applications Institute for Space Situational Awareness (HSAI-SSA) has completed its first full year of applications development. The emphasis of our work in this first year was in improving space surveillance sensor models and image enhancement software. These applications are the Space Surveillance Network Analysis Model (SSNAM), the Air Force Space Fence simulation (SimFence), and physically constrained iterative de-convolution (PCID) image enhancement software tool. Specifically, we have demonstrated order of magnitude speed-up in those codes running on the latest Cray XD-1 Linux supercomputer (Hoku) at the Maui High Performance Computing Center. The software applications improvements that HSAI-SSA has made, has had significant impact to the warfighter and has fundamentally changed the role of high performance computing in SSA.

Giuliano, C.; Schumacher, P.; Matson, C.; Chun, F.; Duncan, B.; Borelli, K.; Desonia, R.; Gusciora, G.; Roe, K.

191

Semantic-driven context-aware visual information indexing and retrieval: Applied in the film post-production domain  

Microsoft Academic Search

A large volume of visual content is inaccessible until effective and efficient indexing and retrieval of such data is achieved. In this paper, we introduce the dream system, which is a knowledge-assisted semantic-driven context-aware visual information retrieval system applied in the film post production domain. We mainly focus on the automatic labelling and topic map related aspects of the framework.

Atta Badii; Meng Zhu; Chattun Lallah; Michael Crouch

2009-01-01

192

Ear-worn reference data collection and annotation for multimodal context-aware hearing instruments.  

PubMed

In this work we present a newly developed ear-worn sensing and annotation device to unobtrusively capture head movements in real life situations. It has been designed in the context of developing multimodal hearing instruments (HIs), but is not limited to this application domain. The ear-worn device captures triaxial acceleration, rate of turn and magnetic field and features a one-button-approach for real-time data annotation through the user. The system runtime is over 5 hours at a sampling rate of 128 Hz. In a user study with 21 participants the device was perceived as comfortable and showed a robust hold at the ear. On the example of head acceleration data we perform unsupervised clustering to demonstrate the benefit of head movements for multimodal HIs. We believe the novel technology will help to push the boundaries of HI technology. PMID:23366425

Tessendorf, Bernd; Derleth, Peter; Feilner, Manuela; Gravenhorst, Franz; Kettner, Andreas; Roggen, Daniel; Stiefmeier, Thomas; Troster, Gerhard

2012-01-01

193

CANoE: A Context-Aware Notification Model to Support the Care of Older Adults in a Nursing Home  

PubMed Central

Taking care of elders in a nursing home is not an easy task. Caregivers face two major problems: a lack of awareness of the situations surrounding the elderly care and the lack of information regarding the availability and the activities of other caregivers to support their coordination process. Various efforts have proposed solutions to cope with these problems, but they do it without considering all the requirements imposed by the criticality of this type of environment. In this paper we propose CANoE, a model for the design of context-aware notifications in critical environments, such as a nursing home. The main feature of this model is that it considers three sources of context (the environment, and the issuer and the receiver of the notification) for adapting the content, the terms of delivery and the presentation of the notification message. Based on the CANoE model we developed the CANoE-Aw and CU-IDA systems, which were evaluated through two case studies in a nursing home. The results of these evaluations provide evidence that caregivers achieved an increased awareness of the situations of care of the elderly and perceived the systems as adequate tools to support their coordination while attending a situation of care.

Nava-Munoz, Sandra; Moran, Alberto L.

2012-01-01

194

A Battery-Aware Algorithm for Supporting Collaborative Applications  

NASA Astrophysics Data System (ADS)

Battery-powered devices such as laptops, cell phones, and MP3 players are becoming ubiquitous. There are several significant ways in which the ubiquity of battery-powered technology impacts the field of collaborative computing. First, applications such as collaborative data gathering, become possible. Also, existing applications that depend on collaborating devices to maintain the system infrastructure must be reconsidered. Fundamentally, the problem lies in the fact that collaborative applications often require end-user computing devices to perform tasks that happen in the background and are not directly advantageous to the user. In this work, we seek to better understand how laptop users use the batteries attached to their devices and analyze a battery-aware alternative to Gnutella’s ultrapeer selection algorithm. Our algorithm provides insight into how system maintenance tasks can be allocated to battery-powered nodes. The most significant result of our study indicates that a large portion of laptop users can participate in system maintenance without sacrificing any of their battery. These results show great promise for existing collaborative applications as well as new applications, such as collaborative data gathering, that rely upon battery-powered devices.

Rollins, Sami; Chang-Yit, Cheryl

195

A model for ontology-based scene description for context-aware driver assistance systems  

Microsoft Academic Search

Driving assistance systems (DAS) offer support in potentially dangerous situations, especially for unexperienced drivers. Co-operative systems improve their performance by sharing information with each other. One key-enabler for describing and exchanging context between intelligent vehicles, which use it for reasoning about their environment, is a common context-model. In this paper, we briefly discuss the influence of the driving context on

Simone Fuchs; Stefan Rass; Bernhard Lamprecht; Kyandoghere Kyamakya

2008-01-01

196

Metacognitive Awareness of EFL Student Writers in a Chinese ELT Context  

ERIC Educational Resources Information Center

This paper reports on an investigation into metacognitive awareness of Chinese English as a foreign language (EFL) student writers, under a threefold metacognition framework--person, task, and strategy variables, and within the broader domain of cognitive writing theories. Data were collected in a Chinese tertiary English language teaching (ELT)…

Ruan, Zhoulin

2014-01-01

197

Determinants of Achieving Effective Shared Situational Awareness within the Context of Global Maritime Partnerships.  

National Technical Information Service (NTIS)

Maritime domain awareness as it is termed in the United States is a key enabler to help maritime forces and other organizations maintain maritime safety and security. Regional bodies such as the Economic Community of Central African States (ECCAS) have ex...

E. Bates

2013-01-01

198

Context management platform for tourism applications.  

PubMed

The notion of context has been widely studied and there are several authors that have proposed different definitions of context. However, context has not been widely studied in the framework of human mobility and the notion of context has been imported directly from other computing fields without specifically addressing the tourism domain requirements. In order to store and manage context information a context data model and a context management platform are needed. Ontologies have been widely used in context modelling, but many of them are designed to be applied in general ubiquitous computing environments, do not contain specific concepts related to the tourism domain or some approaches do not contain enough concepts to represent context information related to the visitor on the move. That is why we propose a new approach to provide a better solution to model context data in tourism environments, adding more value to our solution reusing data about tourist resources from an Open Data repository and publishing it as Linked Data. We also propose the architecture for a context information management platform based on this context data model. PMID:23797739

Buján, David; Martín, David; Torices, Ortzi; López-de-Ipiña, Diego; Lamsfus, Carlos; Abaitua, Joseba; Alzua-Sorzabal, Aurkene

2013-01-01

199

Context Management Platform for Tourism Applications  

PubMed Central

The notion of context has been widely studied and there are several authors that have proposed different definitions of context. However, context has not been widely studied in the framework of human mobility and the notion of context has been imported directly from other computing fields without specifically addressing the tourism domain requirements. In order to store and manage context information a context data model and a context management platform are needed. Ontologies have been widely used in context modelling, but many of them are designed to be applied in general ubiquitous computing environments, do not contain specific concepts related to the tourism domain or some approaches do not contain enough concepts to represent context information related to the visitor on the move. That is why we propose a new approach to provide a better solution to model context data in tourism environments, adding more value to our solution reusing data about tourist resources from an Open Data repository and publishing it as Linked Data. We also propose the architecture for a context information management platform based on this context data model.

Bujan, David; Martin, David; Torices, Ortzi; Lopez-de-Ipina, Diego; Lamsfus, Carlos; Abaitua, Joseba; Alzua-Sorzabal, Aurkene

2013-01-01

200

A Mobile Context-Aware Framework for Managing Learning Schedules--Data Analysis from a Diary Study  

ERIC Educational Resources Information Center

We report the results of a diary study to determine whether a diary approach could be used as a successful way of retrieving a) the user's learning contexts, b) which learning contexts are significant for consideration within an m-learning application, and c) which learning materials are appropriate for which learning situation. Analyses of data…

Yau, Jane Y.-K.; Joy, Mike; Dickert, Stephan

2010-01-01

201

Tandem: A Context-Aware Method for Spontaneous Clustering of Dynamic Wireless Sensor Nodes  

Microsoft Academic Search

Wireless sensor nodes attached to everyday objects and worn by people are able to collaborate and actively assist users in their activi- ties. We propose a method through which wireless sensor nodes organize spontaneously into clusters based on a common context. Provided that the confidence of sharing a common context varies in time, the algo- rithm takes into account a

Raluca Marin-perianu; Clemens Lombriser; Paul J. M. Havinga; Hans Scholten; Gerhard Tröster; C. Floerkemeier; S. Sarma; M. Langheinrich; E. Fleisch

2008-01-01

202

Sensing Technologies and the Player-Middleware for Context-Awareness in Kitchen Environments  

Microsoft Academic Search

In this paper, we report on a use case of networked sensing technologies in the context of smart homes and specifically the kitchen as scenario for our research. We adapt, use and extend an existing middleware originating from robotics for pervasive computing. We report on initial results towards context recognition in this sensor enriched environment.

Matthias Kranz; Albrecht Schmidt; Radu Bogdan Rusu; Alexis Maldonado; Michael Beetz; B. Hornler; Gerhard Rigoll

2007-01-01

203

The context toolkit: aiding the development of context-enabled applications  

Microsoft Academic Search

Context-enabled applications are just emerging and promisericher interaction by taking environmental context into account.However, they are difficult to build due to their distributednature and the use of unconventional sensors. The concepts oftoolkits and widget libraries in graphical user interfaces has beentremendously successtil, allowing programmers to leverage offexisting building blocks to build interactive systems more easily.We introduce the concept of context

Daniel Salber; Anind K. Dey; Gregory D. Abowd

1999-01-01

204

Raising Language Awareness in Peer Interaction: A Cross-Context, Cross-Methodology Examination  

ERIC Educational Resources Information Center

In this paper, both a cognitive and a sociocultural theoretical perspective are used to bring together findings from two studies that investigated the effects of instruction designed to enhance the potentially positive effect of peer interaction on L2 development. Despite differences between the studies' learning contexts, participants' age, and…

Sato, Masatoshi; Ballinger, Susan

2012-01-01

205

Context, as well as inputs, shape decisions, but are people aware of it?  

PubMed

Even if people are experts at understanding how various input cues landed them at a particular decision (something the authors refer to as cue utilization), they may still fail to appreciate how context influences the weight given to those input variables. We review evidence suggesting that people are unaware of contextual influences on their decisions. PMID:24461040

Helzer, Erik G; Dunning, David

2014-02-01

206

A Novel Metric for Context-Aware RAT Selection in Wireless Multi-Access Systems  

Microsoft Academic Search

This paper presents a novel metric, named fittingness factor, for developing Common Radio Resource Management (CRRM) algorithms in heterogeneous wireless scenarios. It reflects the suitability of allocating a given Radio Access Technology (RAT) and cell to a user depending on the specific context in terms of requested service and on the terminal and network capabilities at each instant. Thus, the

Jordi Pérez-romero; Oriol Sallent; Ramón Agustí

2007-01-01

207

Vision-Aided Context-Aware Framework for Personal Navigation Services  

NASA Astrophysics Data System (ADS)

The ubiquity of mobile devices (such as smartphones and tablet-PCs) has encouraged the use of location-based services (LBS) that are relevant to the current location and context of a mobile user. The main challenge of LBS is to find a pervasive and accurate personal navigation system (PNS) in different situations of a mobile user. In this paper, we propose a method of personal navigation for pedestrians that allows a user to freely move in outdoor environments. This system aims at detection of the context information which is useful for improving personal navigation. The context information for a PNS consists of user activity modes (e.g. walking, stationary, driving, and etc.) and the mobile device orientation and placement with respect to the user. After detecting the context information, a low-cost integrated positioning algorithm has been employed to estimate pedestrian navigation parameters. The method is based on the integration of the relative user's motion (changes of velocity and heading angle) estimation based on the video image matching and absolute position information provided by GPS. A Kalman filter (KF) has been used to improve the navigation solution when the user is walking and the phone is in his/her hand. The Experimental results demonstrate the capabilities of this method for outdoor personal navigation systems.

Saeedi, S.; Moussa, A.; El-Sheimy, N., , Dr.

2012-07-01

208

Towards business model and technical platform for the service oriented context-aware mobile virtual communities  

Microsoft Academic Search

The focus of existing virtual communities is centered on a particular product or social interaction and the role of mobile devices is restricted to exchange a limited amount of contents. Herewith we envisage that the upcoming virtual communities will exploit the potential of social interaction and context information to offer personalized services to its members and mobile devices will play

Pravin Pawar; Julien Subercaze; Pierre Maret; Bert-jan Van Beijnum; Dimitri Konstantas

2008-01-01

209

Pattern of life from WAMI objects tracking based on visual context-aware tracking and infusion network models  

NASA Astrophysics Data System (ADS)

With the emergence of long lasting surveillance systems, e.g., full motion video (FMV) networks and wide area motion imagery (WAMI) sensors, extracting targets' long term pattern of life over a day becomes possible. In this paper, we present a framework for extracting the pattern of life (POL) of targets from WAMI video. We first apply a context-aware multi-target tracker (CAMT) to track multiple targets in the WAMI video and obtain the targets' tracklets, traces, and the locations, from surveillance information extracted from the targets' long-term trajectories. Then, entity networks propagate over time are constructed with targets' tracklets, traces, and the interested locations. Finally, the entity network is analyzed using network retrieving technique to extract the POL of interested targets.

Gao, Jianjun; Ling, Haibin; Blasch, Erik; Pham, Khanh; Wang, Zhonghai; Chen, Genshe

2013-05-01

210

Integrating context-aware public displays into a mobile hospital information system.  

PubMed

Hospitals are convenient settings for deployment of ubiquitous computing technology. Not only are they technology-rich environments, but their workers experience a high level of mobility resulting in information infrastructures with artifacts distributed throughout the premises. Hospital information systems (HISs) that provide access to electronic patient records are a step in the direction of providing accurate and timely information to hospital staff in support of adequate decision-making. This has motivated the introduction of mobile computing technology in hospitals based on designs which respond to their particular conditions and demands. Among those conditions is the fact that worker mobility does not exclude the need for having shared information artifacts particular locations. In this paper, we extend a handheld-based mobile HIS with ubiquitous computing technology and describe how public displays are integrated with handheld and the services offered by these devices. Public displays become aware of the presence of physicians and nurses in their vicinity and adapt to provide users with personalized, relevant information. An agent-based architecture allows the integration of proactive components that offer information relevant to the case at hand, either from medical guidelines or previous similar cases. PMID:15484433

Favela, Jesus; Rodríguez, Marcela; Preciado, Alfredo; González, Victor M

2004-09-01

211

Context-aware mobile health monitoring: Evaluation of different pattern recognition methods for classification of physical activity  

Microsoft Academic Search

There are various applications of physical activity monitoring for medical purposes, such as therapeutic rehabilitation, fitness enhancement or the use of physical activity as context information for evaluation of other vital data. Physical activity can be estimated using acceleration sensor-systems fixed on a person's body. By means of pattern recognition methods, it is possible to identify with certain accuracy which

Luciana C. Jatoba; Ulrich Grossmann; Chistophe Kunze; Jorg Ottenbacher; Wilhelm Stork

2008-01-01

212

Service-oriented Approach towards Context-aware Mobile Learning Management Systems.  

National Technical Information Service (NTIS)

Thanks to the public and low cost availability of wireless high speed internet access students are increasingly equipped with mobile internet enabled devices to connect to university services like Learning Management System (LMS). But the applications ser...

D. Tavangarian P. Lehsten R. Zender U. Lucke

2010-01-01

213

Context-Aware Data and IT Services Collaboration in E-Business  

NASA Astrophysics Data System (ADS)

This paper discusses the use of services in the design and development of adaptable business processes, which should let organizations quickly react to changes in regulations and needs. Two types of services are adopted namely Data and Information Technology. A data service is primarily used to hide the complexity of accessing distributed and heterogeneous data sources, while an information technology service is primarily used to hide the complexity of running requests that cross organizational boundaries. The combination of both services takes place under the control of another service, which is denoted by service domain. A service domain orchestrates and manages data and information technology services in response to the events that arise and changes that occur. This happens because service domains are sensible to context. Policies and aspect-oriented programming principles support the exercise of packaging data and information technology services into service domains as well as making service domains adapt to business changes.

Boukadi, Khouloud; Ghedira, Chirine; Maamar, Zakaria; Benslimane, Djamal; Vincent, Lucien

214

Context management and its applications to distributed transactions  

NASA Astrophysics Data System (ADS)

An emerging paradigm that handles multiple loci of control in a system allows multiple program threads to work on the same task, each thread to work on a different task, or a thread to work on multiple tasks for greater design flexibility or due to system constraints such as real-time demands and a high load on tasking. We use the definition of context to capture the notion of logical locus of control. The context of the work being currently executed must be identifiable uniquely by the application, the resource managers and the transaction manager because each context represents different work. in this paper, we define context management by defining a local context manager and its user interface. We then show why the notion of context is required to solve the problems that arise in local and distributed transaction processing due to the emerging paradigm. We present solutions to these problems in transaction processing using the proposed context management.

Kshemkalyani, Ajay D.; Samaras, George; Citron, Andrew

1998-03-01

215

A service-oriented approach towards context-aware mobile Learning Management Systems  

Microsoft Academic Search

Thanks to the public and low cost availability of wireless high speed internet access students are increasingly equipped with mobile internet enabled devices to connect to university services like Learning Management System (LMS). But the applications services like LMS are still unable to adapt themselves to modern mobile devices with restrictions like reduced display size. By recognizing the device and

Philipp Lehsten; Raphael Zender; Ulrike Lucke; Djamshid Tavangarian

2010-01-01

216

A Context-Aware Mobile Learning System for Supporting Cognitive Apprenticeships in Nursing Skills Training  

ERIC Educational Resources Information Center

The aim of nursing education is to foster in students the competence of applying integrated knowledge with clinical skills to the application domains. In the traditional approach, in-class knowledge learning and clinical skills training are usually conducted separately, such that the students might not be able to integrate the knowledge and the…

Wu, Po-Han; Hwang, Gwo-Jen; Su, Liang-Hao; Huang, Yueh-Min

2012-01-01

217

On QoS Provisioning in Context-Aware Wireless Sensor Networks for Healthcare  

Microsoft Academic Search

Wireless body sensors combined with ubiquitous Wireless Sensor Networks enable pervasive healthcare applica- tions. This technology can significantly improve the quality of life of chronically ill and elderly. Remote medical monitoring applications consist of many features as continuous medical monitoring, emergency alerts, location tracking and home automation. These heterogeneous systems have to implement Quality of Service mechanisms to ensure that

Marion Souil; Abdelmadjid Bouabdallah

2011-01-01

218

Interoperability and Integration of Context-Aware Services in an Ambient Intelligence Environment  

Microsoft Academic Search

The present paper introduces the creation of an interactive system for university environments based on personalization of services thanks to radio frequency identification (RFID). The described system is a mosaic application that integrates different services that will allow identifying and locating students and teachers in some areas of a Faculty or Engineering School, as well as offering personalized information such

Sergio Martín; Elio San Cristóbal; Guillermo Temiño; Pablo Losada; Nuria Oliva; Antonio Colmenar; Manuel Castro; Juan Peire

2008-01-01

219

A Framework for a Context-Aware Elderly Entertainment Support System  

PubMed Central

Elderly people constitute a major portion of world's population. Many of them are physically and mentally vulnerable and need continuous support for their health and well-being. There is a growing trend that these elderly people are placed in an ambient assisted living environment (AAL) with an aim to receive better care and support. In such settings, a lot of attention has been given to continuous health monitoring for maintaining physical health status. However, much less attention has been given toward understanding the entertainment needs of the elderly people, which is an important factor relevant to their mental health and joyful living. This paper thus addresses the entertainment needs of the elderly and proposes a framework of an elderly entertainment support system. The proposed framework enables different categories of residents (e.g., elderly people and caregivers) to access various media services in both implicit and explicit manner in order to enhance the quality of their living experience in different contexts. Our experimental results demonstrate the viability of the proposed framework. We believe that the proposed approach will establish the need to develop entertainment systems and services for the elderly people and allow us to sensibly address the problems associated with their independent, happy and active living.

Hossain, M. Anwar; Alamri, Atif; Almogren, Ahmad S.; Hossain, SK Alamgir; Parra, Jorge

2014-01-01

220

Context-aware visual analysis of elderly activity in a cluttered home environment  

NASA Astrophysics Data System (ADS)

This paper presents a semi-supervised methodology for automatic recognition and classification of elderly activity in a cluttered real home environment. The proposed mechanism recognizes elderly activities by using a semantic model of the scene under visual surveillance. We also illustrate the use of trajectory data for unsupervised learning of this scene context model. The model learning process does not involve any supervised feature selection and does not require any prior knowledge about the scene. The learned model in turn de-fines the activity and inactivity zones in the scene. An activity zone further contains block-level reference information, which is used to generate features for semi-supervised classification using transductive support vector machines. We used very few labeled examples for initial training. Knowledge of activity and inactivity zones improves the activity analysis process in realistic scenarios significantly. Experiments on real-life videos have validated our approach: we are able to achieve more than 90% accuracy for two diverse types of datasets.

Shoaib, Muhammad; Dragon, Ralf; Ostermann, Joern

2011-12-01

221

Social Email: A Framework and Application for More Socially-Aware Communications  

NASA Astrophysics Data System (ADS)

As online social networks (OSN) attempt to mimic real life social networks, we have made progress towards using OSNs to provide us with data to allow for richer and more robust online communications. In this paper, we present a novel approach towards socially-aware email. Currently, email provides too little control to the recipient. Our approach, dubbed SoEmail, provides social context to messages using an OSN's underlying social graph. This not only gives the recipient control over who can message her, but it also provides her with an understanding of where the message originated from, socially. Furthermore, users who do not wish to use the built-in social aspect of SoEmail, can send and receive emails without any changes to their behavior. The modifications we made to the email application to provide this social context are not invasive and can be easily ignored by any existing email client. We built SoEmail on top of an existing framework, known as Davis Social Links, which allows SoEmail to be completely agnostic about the underlying OSN. We created a web-based, standards-based web client for SoEmail using Facebook and Gmail as the underlying systems which has been released for public use and has had a good adoption rate.

Tran, Thomas; Rowe, Jeff; Wu, S. Felix

222

Awareness of Biotechnological Application: A Study among University Geography Students  

ERIC Educational Resources Information Center

The aim of this study is to measure the differences of university geography students about biotechnology. Therefore an awareness scale was developed by the researcher. 102 students from six different universities and their academic levels were included in the survey. The findings of the survey were evaluated both descriptively and statistically.…

Ozel, Ali; Terzi, Irfan; Ozel, Emine

2009-01-01

223

Community Situational Awareness and Resilience through Mobile Applications  

Microsoft Academic Search

Access to social networks via portable devices promises to be especially valuable for public communities. Because smart phones increasingly accompany community members wherever they are, the social network extends into everyday interactions where location-specific, real time interactions are natural and resulting actions can be immediate. Governments and NGOs can leverage the self-organizing, collectively-intelligent community to improve situational awareness and improve

Yuan-Chi Chang; Chang-Tien Lu; Huong Morris; Pam Murray-Tuite; Quoc-Bao Nguyen

2011-01-01

224

Engineering Mobile Agent Applications via Context-Dependent Coordination  

Microsoft Academic Search

The design and development of Internet applications requiring dynamic and possibly mobile access to Internet resources can take advantage of an approach based on autonomous mobile agents. However, mobility introduces peculiar issues related to the modeling and management of the agents' coordination activities. This paper introduces context-dependent coordination as a framework for the design and development of Internet applications based

Giacomo Cabri; Letizia Leonardi; Franco Zambonelli

2002-01-01

225

Context-Aware Sensors  

Microsoft Academic Search

\\u000a Wireless sensor networks typically consist of a large number of sensor nodes embedded in a physical space. Such sensors are\\u000a low-power devices that are primarily used for monitoring several physical phenomena, potentially in remote harsh environments.\\u000a Spatial and temporal dependencies between the readings at these nodes highly exist in such scenarios. Statistical contextual\\u000a information encodes these spatio-temporal dependencies. It enables

Eiman Elnahrawy; Badri Nath

2004-01-01

226

Data location-aware job scheduling in the grid. Application to the GridWay metascheduler  

NASA Astrophysics Data System (ADS)

Grid infrastructures constitute nowadays the core of the computing facilities of the biggest LHC experiments. These experiments produce and manage petabytes of data per year and run thousands of computing jobs every day to process that data. It is the duty of metaschedulers to allocate the tasks to the most appropriate resources at the proper time. Our work reviews the policies that have been proposed for the scheduling of grid jobs in the context of very data-intensive applications. We indicate some of the practical problems that such models will face and describe what we consider essential characteristics of an optimum scheduling system: aim to minimise not only job turnaround time but also data replication, flexibility to support different virtual organisation requirements and capability to coordinate the tasks of data placement and job allocation while keeping their execution decoupled. These ideas have guided the development of an enhanced prototype for GridWay, a general purpose metascheduler, part of the Globus Toolkit and member of the EGEE's RESPECT program. Current GridWay's scheduling algorithm is unaware of data location. Our prototype makes it possible for job requests to set data needs not only as absolute requirements but also as functions for resource ranking. As our tests show, this makes it more flexible than currently used resource brokers to implement different data-aware scheduling algorithms.

Delgado Peris, Antonio; Hernandez, Jose; Huedo, Eduardo; Llorente, Ignacio M.

2010-04-01

227

HPCC technology awareness program: Improved economic competitiveness through technology awareness, transfer and application. Final report  

SciTech Connect

A need has been defined by Congress for the DOE National Laboratories to participate in various dual use and technology transfer programs. This requirement has spawned several technology transfer approaches at the DOE laboratories. These programs are designed to encourage large and small business to bring their problems and needs forward, and to allow the labs to transfer effective high performance computing technology to the commercial marketplace. This IG Technologies grant from the DOE was undertaken to address the issues and problems associated with technology transfer between the DOE National Laboratories and commercial industry. The key focus is to gain an understanding of how DOE and industry independently and collectively view the requirements and the missing elements that could allow DOE to facilitate HPCC technology transfer. At issue is HPCC Technology Transfer for the High Performance Computing industry and its relationship to the DOE National Laboratories. Several observations on this are addressed. The issue of a ``Technology Utilization Gap`` between the National Laboratories and Independent Software Vendors is discussed. This study addressed the HPCC Technology Transfer plans of all six DOE National Labs. Study team members briefed numerous industrial users of HPCC technology as to the feasibility of technology transfer for various applications. Significant findings of the effort are that the resistance to technology transfer is much higher than anticipated for both the National Labs and industry. Also, HPCC Technology Transfer is observed to be a large company`s dominion. Small businesses have a difficult time in addressing the requirements of technology transfer using Cooperative Research and Development Agreements (CRADA`s). Large businesses and the DOE National Labs however, often have requirements and objectives which are at cross purposes, making effective technology transfer difficult.

Not Available

1994-04-01

228

Implementations of the HL7 Context-Aware Knowledge Retrieval ("Infobutton") Standard: Challenges, Strengths, Limitations, and Uptake  

PubMed Central

To support clinical decision-making,computerized information retrieval tools known as “infobuttons” deliver contextually-relevant knowledge resources intoclinical information systems.The Health Level Seven International(HL7)Context-Aware Knowledge Retrieval (Infobutton) Standard specifies a standard mechanism to enable infobuttons on a large scale. Objective To examine the experience of organizations in the course of implementing the HL7 Infobutton Standard. Method Cross-sectionalonline survey and in-depth phone interviews. Results A total of 17 organizations participated in the study.Analysis of the in-depth interviews revealed 20 recurrent themes.Implementers underscored the benefits, simplicity, and flexibility of the HL7 Infobutton Standard. Yet, participants voiced the need for easier access to standard specifications and improved guidance to beginners. Implementers predicted that the Infobutton Standard will be widely or at least fairly well adopted in the next five years, but uptake will dependlargely on adoption among electronic health record (EHR) vendors. To accelerate EHR adoption of the Infobutton Standard,implementers recommended HL7-compliant infobutton capabilities to be included in the United States Meaningful Use Certification Criteria EHR systems. Limitations Opinions and predictions should be interpreted with caution, since all the participant organizations have successfully implemented the Standard and overhalf of the organizations were actively engaged in the development of the Standard. Conclusion Overall, implementers reported a very positive experience with the HL7 Infobutton Standard.Despite indications of increasing uptake, measures should be taken to stimulate adoption of the Infobutton Standard among EHR vendors. Widespread adoption of the Infobutton standard has the potential to bring contextually relevant clinical decision support content into the healthcare provider workflow.

Del Fiol, Guilherme; Huser, Vojtech; Strasberg, Howard R; Maviglia, Saverio M; Curtis, Clayton; Cimino, James J

2012-01-01

229

Mobile agents for enabling mobile user aware applications  

Microsoft Academic Search

Mobile agents based computing has been propounded as thepossible approach to next generation computing. The approachhas been shown to be effective in different domains,especially in the area of mobile and partially connected computing.We describe the design and implementation detailsof MAGENTA (Mobile AGENT environment for distributedApplications) and the mechanisms it provides forenabling applications supporting mobile users. MAGENTA isa generic mobile agent

Akhil Sahai; Christine Morin

1998-01-01

230

IQ-services: Network-Aware Middleware for Interactive Large-Data Application  

Microsoft Academic Search

Abstract IQ-Services are application-specific, resource-aware code modules executed by data transport middleware. They constitute a ‘thin’ layer between application components,and the underlying computational,and communication,resources that implements the data manipulations necessary to permit wide-area collaborations to proceed smoothly, despite dynamic,resource variations. IQ-Services interact with the application and resource layers via dynamic,performance attributes, and end-to-end implementations of such attributes also permit clients

Z Cai; G Eisenhauer; K Schwan; M Wolf

2003-01-01

231

IQ-services: network-aware middleware for interactive large-data applications  

Microsoft Academic Search

IQ-Services are application-specific, resource-aware code modules executed by data transport middleware. They constitute a 'thin' layer between application components and the underlying computational and communication resources that implements the data manipulations necessary to permit wide-area collaborations to proceed smoothly, despite dynamic resource variations. IQ-Services interact with the application and resource layers via dynamic performance attributes, and end-to-end implementations of such

Zhongtang Cai; Greg Eisenhauer; Qi He; Vibhore Kumar; Karsten Schwan; Matthew Wolf

2004-01-01

232

Context representation and fusion: advancements and opportunities.  

PubMed

The acceptance and usability of context-aware systems have given them the edge of wide use in various domains and has also attracted the attention of researchers in the area of context-aware computing. Making user context information available to such systems is the center of attention. However, there is very little emphasis given to the process of context representation and context fusion which are integral parts of context-aware systems. Context representation and fusion facilitate in recognizing the dependency/relationship of one data source on another to extract a better understanding of user context. The problem is more critical when data is emerging from heterogeneous sources of diverse nature like sensors, user profiles, and social interactions and also at different timestamps. Both the processes of context representation and fusion are followed in one way or another; however, they are not discussed explicitly for the realization of context-aware systems. In other words most of the context-aware systems underestimate the importance context representation and fusion. This research has explicitly focused on the importance of both the processes of context representation and fusion and has streamlined their existence in the overall architecture of context-aware systems' design and development. Various applications of context representation and fusion in context-aware systems are also highlighted in this research. A detailed review on both the processes is provided in this research with their applications. Future research directions (challenges) are also highlighted which needs proper attention for the purpose of achieving the goal of realizing context-aware systems. PMID:24887042

Khattak, Asad Masood; Akbar, Noman; Aazam, Mohammad; Ali, Taqdir; Khan, Adil Mehmood; Jeon, Seokhee; Hwang, Myunggwon; Lee, Sungyoung

2014-01-01

233

Context Representation and Fusion: Advancements and Opportunities  

PubMed Central

The acceptance and usability of context-aware systems have given them the edge of wide use in various domains and has also attracted the attention of researchers in the area of context-aware computing. Making user context information available to such systems is the center of attention. However, there is very little emphasis given to the process of context representation and context fusion which are integral parts of context-aware systems. Context representation and fusion facilitate in recognizing the dependency/relationship of one data source on another to extract a better understanding of user context. The problem is more critical when data is emerging from heterogeneous sources of diverse nature like sensors, user profiles, and social interactions and also at different timestamps. Both the processes of context representation and fusion are followed in one way or another; however, they are not discussed explicitly for the realization of context-aware systems. In other words most of the context-aware systems underestimate the importance context representation and fusion. This research has explicitly focused on the importance of both the processes of context representation and fusion and has streamlined their existence in the overall architecture of context-aware systems’ design and development. Various applications of context representation and fusion in context-aware systems are also highlighted in this research. A detailed review on both the processes is provided in this research with their applications. Future research directions (challenges) are also highlighted which needs proper attention for the purpose of achieving the goal of realizing context-aware systems.

Khattak, Asad Masood; Akbar, Noman; Aazam, Mohammad; Ali, Taqdir; Khan, Adil Mehmood; Jeon, Seokhee; Hwang, Myunggwon; Lee, Sungyoung

2014-01-01

234

Application-aware Interface for SOAP Communication in Web Services  

Microsoft Academic Search

SOAP protocol has emerged as the Web service communication standard. Because of the relatively poor performance, many researchers focus on improving the speed of processing SOAP message. In this paper, we propose SPI, which introduces client usage pattern to the low level SOAP process infrastructure, in order to improve the performance of some kind of Web services applications with specific

Hao Wang; Yizhu Tong; Hong Liu; Taoying Liu

2006-01-01

235

Using Fail-Awareness to Design Adaptive Real-Time Applications  

Microsoft Academic Search

We address the problem of how to adapt the quality of service of real-time applications with respect to the current failure rate that the system experiences. Our approach to that problem uses fail-awareness which is a design concept that allows clients to detect when a distributed service cannot provide certain properties due to a too high failure rate. In this

Christof Fetzer; Flaviu Cristian

1997-01-01

236

Location aware applications to support mobile food vendors in the developing world  

Microsoft Academic Search

This paper describes an ongoing research project to explore the potential of location aware mobile phone-based applications to support mobile food vendors in the developing world. These vendors are a ubiquitous phenomenon in the developing world and can be seen hawking their wares in carts, bicycles or motorcycles. We report preliminary findings from nine interviews conducted with various mobile food

Rahmad Dawood; Jude Yew; Steven J. Jackson

2010-01-01

237

The impact of a rural or urban context in eating awareness and self-regulation strategies in children and adolescents from eight European countries.  

PubMed

Complex relationships exist between eating behaviour and personal and environmental factors. Rural and urban geographic contexts seem to play a role in eating behaviour, and therefore deserve a deeper study. A healthy eating behaviour and the conditions that promote it are a major issue in the promotion of adolescent health. The study aims to investigate the associations between the area of residence (urban vs. rural), self-regulation strategies (TESQ-E) and eating behaviours among children and adolescents. A total of 11,820 adolescents (50.6% girls) participated in the study, with a mean age of 13.30?years (SD= 2.13). Nine countries (The Netherlands, United Kingdom, Poland, Portugal, Denmark, Romania, Germany, Finland and Belgium) completed a questionnaire in the school context, asking about the use of self-regulation strategies, eating behaviour awareness/care and sociodemographic questions such as age, gender and residential area. Both areas of residence (urban vs. rural) are associated with eating awareness/care in Romania and Portugal, controlling for age, gender and self-regulation strategies. In some European countries at least, and most probably around the world, health promotion should focus on an ecological approach that includes the understanding of the effect of both environmental factors and personal skills on eating behaviour/awareness. PMID:24821504

Gaspar, Tania; de Matos, Margarida Gaspar; Luszczynska, Aleksandra; Baban, Adriana; Wit, John

2014-06-01

238

An energy-aware routing protocol for query-based applications in wireless sensor networks.  

PubMed

Wireless sensor network (WSN) typically has energy consumption restriction. Designing energy-aware routing protocol can significantly reduce energy consumption in WSNs. Energy-aware routing protocols can be classified into two categories, energy savers and energy balancers. Energy saving protocols are used to minimize the overall energy consumed by a WSN, while energy balancing protocols attempt to efficiently distribute the consumption of energy throughout the network. In general terms, energy saving protocols are not necessarily good at balancing energy consumption and energy balancing protocols are not always good at reducing energy consumption. In this paper, we propose an energy-aware routing protocol (ERP) for query-based applications in WSNs, which offers a good trade-off between traditional energy balancing and energy saving objectives and supports a soft real time packet delivery. This is achieved by means of fuzzy sets and learning automata techniques along with zonal broadcasting to decrease total energy consumption. PMID:24696640

Ahvar, Ehsan; Ahvar, Shohreh; Lee, Gyu Myoung; Crespi, Noel

2014-01-01

239

An Energy-Aware Routing Protocol for Query-Based Applications in Wireless Sensor Networks  

PubMed Central

Wireless sensor network (WSN) typically has energy consumption restriction. Designing energy-aware routing protocol can significantly reduce energy consumption in WSNs. Energy-aware routing protocols can be classified into two categories, energy savers and energy balancers. Energy saving protocols are used to minimize the overall energy consumed by a WSN, while energy balancing protocols attempt to efficiently distribute the consumption of energy throughout the network. In general terms, energy saving protocols are not necessarily good at balancing energy consumption and energy balancing protocols are not always good at reducing energy consumption. In this paper, we propose an energy-aware routing protocol (ERP) for query-based applications in WSNs, which offers a good trade-off between traditional energy balancing and energy saving objectives and supports a soft real time packet delivery. This is achieved by means of fuzzy sets and learning automata techniques along with zonal broadcasting to decrease total energy consumption.

Crespi, Noel

2014-01-01

240

Understanding Total Quality Management in Context: Qualitative Research on Managers' Awareness of TQM Aspects in the Greek Service Industry  

ERIC Educational Resources Information Center

This study addresses managers' awareness and familiarity with Total Quality Management (TQM). Eighteen (18) semi-structured, in-depth interviews were conducted with managers working in a variety of service organizations in Greece. The major argument of the study is that although the acronym TQM and some of its concepts and practices are known by a…

Psychogios, Alexandros G.; Priporas, Constantinos-Vasilios

2007-01-01

241

Do the coach and athlete have the same "picture" of the situation? Distributed Situation Awareness in an elite sport context.  

PubMed

Athletes and their coach interpret the training situations differently and this can have important implications for the development of an elite athlete's performance. It is argued that, from a schema-theoretic perspective, the difference in these interpretations needs to be better understood. A post-performance, self-confrontation, interview was conducted with a number of athletes and their coaches. The interviews revealed differences between the athlete and their coach in the information they are aware of. In comparison with athletes, coaches more frequently compared the phenotype with genotype schemata rather than just describing the phenotype schemata. Results suggest SA information elements showed some common ground but also revealed some important differences between the athlete and coach. The awareness was directed externally towards the environment and internally, towards the individual, depending on his/her role. The investigation showed that the schemata used to 'frame' the information elements were different, but compatible, between athlete and coach. PMID:24112774

Macquet, Anne-Claire; Stanton, Neville A

2014-05-01

242

A Low-Cost Positioning System for Location-Aware Applications in Smart Homes  

Microsoft Academic Search

Location-aware services for private use such as GPS- based navigation systems and GSM-based offerings have become quite a success for outdoor applications, while indoor positioning systems are still mainly employed for professional use only. The main reasons are cost issues and the complexity of setup and maintenance of those systems. In this paper we present CaMPTrack (Camera-b ased Multiple Person

Robbie Schaefer

243

A Location-Aware Architecture Supporting Intelligent Real-Time Mobile Applications  

Microsoft Academic Search

This dissertation presents LAISYC, a modular location-aware architecture for intelligent real-time mobile applications that is fully-implementable by third party mobile app developers and supports high-precision and high-accuracy positioning systems such as GPS. LAISYC significantly improves device battery life, provides location data authenticity, ensures security of location data, and significantly reduces the amount of data transferred between the phone and server.

Sean J. Barbeau

2012-01-01

244

A tool for creating eye-aware applications that adapt to changes in user behaviors  

Microsoft Academic Search

A development tool is described that can be used to create eye-aware software applications that adapt in real-time to changes in a user’s natural eye-movement behaviors and intentions. The research involved in developing this tool focuses on identifying patterns of eye-movement that describe three behaviors: Knowledgeable Movement, Searching, and Prolonged Searching. In the process of doing the research, two important

Gregory W. Edwards; Archimedes Project

1998-01-01

245

There is more to context than location  

Microsoft Academic Search

Context is a key issue in interaction between human and computer, describing the surrounding facts that add meaning. In mobile computing research published the parameter location is most often used to approximate context and to implement context-aware applications. We propose that ultra -mobile computing, characterized by devices that are operational and operated while on the move (e.g. PDAs, mobile phones,

Albrecht Schmidt; Michael Beigl; Hans-werner Gellersen

1999-01-01

246

ContextContacts: re-designing SmartPhone's contact book to support mobile awareness and collaboration  

Microsoft Academic Search

Acontextuality of the mobile phone often leads to a caller's uncertainty over a callee's current state, which in turn often hampers mobile collaboration. We are interested in re-designing a Smartphone's contact book to provide cues of the current situations of others. ContextContacts presents several meaningful, automatically communicated situation cues of trusted others. Its interaction design follows social psychological findings on

Antti Oulasvirta; Mika Raento; Sauli Tiitta

2005-01-01

247

The interactive effects of recruitment practices and product awareness on job seekers' employer knowledge and application behaviors.  

PubMed

In this article, the author draws on research from the literature on marketing and recruitment to identify how recruitment practices and company product awareness are related to job seekers' application behaviors through 3 aspects of job seekers' employer knowledge. Based on results from a within-subject design with data from 123 recruiting companies and 456 student job seekers, the author's findings suggest that the relationships between recruitment strategies and application intentions and decisions are moderated by product awareness. Specifically, low-information recruitment practices are significantly and positively related to application behaviors through employer familiarity and employer reputation when product awareness is low. In contrast, high-information recruitment practices are related to job seekers' application behaviors through employer reputation and job information when product awareness is high. PMID:17227159

Collins, Christopher J

2007-01-01

248

FRAMEWORK FOR A CONTEXT-AWARE MOBILE E- HEALTH SERVICE DISCOVERY INFRASTRUCTURE FOR RURAL\\/SUBURBAN HEALTHCARE  

Microsoft Academic Search

Research efforts have produced a lot of applications and hardware devices for healthcare services especially in the developed world. However, much still left to be desire in mobile wireless healthcare research that produces semantic web services applications solution especially for the developing African countries. The first successful implementation of a mobile wireless application for the healthcare industry in the United

MATTHEW O. ADIGUN

2009-01-01

249

Marine and coastal environmental awareness building within the context of UNESCO's activities in Asia and the Pacific.  

PubMed

UNESCO is one of the specialized agencies under the United Nations charged with the advancement and improvement of education, social and natural sciences, culture and communication. This global mandate translates into programmes in the field tailored to the member states' specific requirements that build on the full breadth of expertise available in UNESCO. Environmental awareness building is an integral component of many of UNESCO's programmes. This paper describes how UNESCO addresses the need for awareness building in a variety of settings under different programmes and sectors. A first example is taken from the work of the education sector, which aims at introducing innovative learning methods and curricula that change or cultivate the perspective of people of all ages on sustainable development. The second example is taken from the Man and Biosphere Programme. The Biosphere Reserve concept has had a long history within UNESCO and is increasingly applied to protected areas in the coastal zone. Notable examples are Ranong Biosphere Reserve in Thailand, Can Gio Biosphere Reserve in Vietnam and the Island of Palawan in the Philippines. The concept is currently experiencing a revival as more and more countries realize the importance of striking a balance between human development and strict conservation. Many people know about UNESCO through the so-called World Heritage Sites. These are sites that are recognized by the world community as particular monuments, either natural or cultural, that warrant preservation for the whole of mankind. In the Asia-Pacific region, there are quite a number of coastal and marine sites that have been designated as natural world heritage sites, e.g. Halong Bay in Vietnam, the Komodo marine national park, Indonesia, the Great Barrier Reef in Australia, East-Rennell Island in the Solomon Islands, and Tubbataha Reef in the Philippines. The need for a cross-sectoral approach is evident under the so-called Coastal Zone and Small Islands endeavour, which aims at assisting Member States towards environmentally sound, socially equitable and culturally appropriate development in coastal regions and in small islands. Four examples of current pilot projects (Surin Island, Thailand, Jakarta Bay, Indonesia, Upolo Island, Samoa and Ulugan Bay, the Philippines) are highlighted. Each setting and each audience requires a different strategy. UNESCO's strength is to learn from all these experiences and make such new insights universally available and to put novel concepts into practice. PMID:12787630

Kuijper, Maarten W M

2003-01-01

250

SAM: speech-aware applications in medicine to support structured data entry.  

PubMed Central

In the last two years, improvement in speech recognition technology has directed the medical community's interest to porting and using such innovations in clinical systems. The acceptance of speech recognition systems in clinical domains increases with recognition speed, large medical vocabulary, high accuracy, continuous speech recognition, and speaker independence. Although some commercial speech engines approach these requirements, the greatest benefit can be achieved in adapting a speech recognizer to a specific medical application. The goals of our work are first, to develop a speech-aware core component which is able to establish connections to speech recognition engines of different vendors. This is realized in SAM. Second, with applications based on SAM we want to support the physician in his/her routine clinical care activities. Within the STAMP project (STAndardized Multimedia report generator in Pathology), we extend SAM by combining a structured data entry approach with speech recognition technology. Another speech-aware application in the field of Diabetes care is connected to a terminology server. The server delivers a controlled vocabulary which can be used for speech recognition.

Wormek, A. K.; Ingenerf, J.; Orthner, H. F.

1997-01-01

251

Application of geosites assessment method in geopark context  

NASA Astrophysics Data System (ADS)

The regional natural park of the Monts d'Ardèche (Ardèche and Haute-Loire departments, France) is candidate to the European Geopark Network (EGN) in 2014. The area has a wide geodiversity - with rocks from Cambrian to Pleistocene (basalt flows) - and interesting features like phonolitic protrusions, maars and granite boulders fields. Around 115 sites were selected and documented through a geosites inventory carried out in the territory. This pre-selection was supervised by the Ardèche Geological Society and is therefore expert advice based. In the context of EGN candidature, these potential geosites were assessed with a simplified method. It follows the spirit of the method from the University of Lausanne (Reynard et al., 2007) and its recent developments: assessment of the scientific (central) value and of a set of additional values (ecological and cultural). As this assessment aimed to offer a management tool to the future geopark's authorities, a special focus was given to management aspects. In particular, the opportunities to use the site for education (from schools to universities) and for tourism as well as the existence of protection and of interpretive facilities were documented and assessed. Several interesting conclusions may be drawn from this case study: (1) expert assessment is effective when it is based on a pre-existing inventory which is well structured and documented; (2) even simplified, an assessment method is a very useful framework to expert assessment as it focuses the discussions on most important points and helps to balance the assessment; (3) whereas the inventory can be extensively detailed and partly academic, the assessment in the geopark context is objective-driven in order to answer management needs. The place of the geosites assessment among the three key players of a geopark construction process (i.e. territory's managers, local geoscientists and EGN) is also discussed. This place can be defined as the point of consensus of needs and wishes of all stakeholders. For instance, the local geoscientists are most interested in conservation and scientific interests whereas managers aim to develop and promote the tourist (and economic) dimension. The definition and application of the assessment method is the outcome of constant discussion with both local key players; it therefore reflects and moderates the - sometimes antagonistic - interests. All the discussions around geosites assessment can be considered as the prime mover at local scale of the geopark construction process. This example shows that geosites assessment can not be considered only as an academic operation, but also as an essential step to initiate a local dynamic and consensus that help to achieve some of the objectives of a geopark defined by EGN like local involvement, sustainable development, or cooperation with local communities.

Martin, Simon; Perret, Amandine; Renau, Pierre; Cartier-Moulin, Olivier; Regolini-Bissig, Géraldine

2014-05-01

252

Field anthropology: application to burial contexts in prehistoric Southeast Asia  

Microsoft Academic Search

The context of burials in archaeological sites, that is whether the body was inhumed, wrapped, or in a coffin, is an aspect of mortuary ritual that has been missing from English-language publications on the subject. This is despite the development and use in France over at least the last two decades of methods of determining the context under the rubric

A. Willis; N. Tayles

2009-01-01

253

Semantic-Aware Automatic Parallelization of Modern Applications Using High-Level Abstractions  

SciTech Connect

Automatic introduction of OpenMP for sequential applications has attracted significant attention recently because of the proliferation of multicore processors and the simplicity of using OpenMP to express parallelism for shared-memory systems. However, most previous research has only focused on C and Fortran applications operating on primitive data types. Modern applications using high-level abstractions, such as C++ STL containers and complex user-defined class types, are largely ignored due to the lack of research compilers that are readily able to recognize high-level object-oriented abstractions and leverage their associated semantics. In this paper, we use a source-to-source compiler infrastructure, ROSE, to explore compiler techniques to recognize high-level abstractions and to exploit their semantics for automatic parallelization. Several representative parallelization candidate kernels are used to study semantic-aware parallelization strategies for high-level abstractions, combined with extended compiler analyses. Preliminary results have shown that semantics of abstractions can help extend the applicability of automatic parallelization to modern applications and expose more opportunities to take advantage of multicore processors.

Liao, C; Quinlan, D J; Willcock, J J; Panas, T

2009-12-21

254

SCRIPTGARD: automatic context-sensitive sanitization for large-scale legacy web applications  

Microsoft Academic Search

We empirically analyzed sanitizer use in a shipping web ap- plication with over 400,000 lines of code and over 23,244 methods, the largest empirical analysis of sanitizer use of which we are aware. Our analysis reveals two novel classes of errors: context-mismatched sanitization and inconsistent multiple sanitization. Both of these arise not because sanitizers are incorrectly implemented, but rather because

Prateek Saxena; David Molnar; Benjamin Livshits

2011-01-01

255

Network DVR: A Programmable Framework for Application-Aware Trace Collection  

NASA Astrophysics Data System (ADS)

Network traces are essential for a wide range of network applications, including traffic analysis, network measurement, performance monitoring, and security analysis. Existing capture tools do not have sufficient built-in intelligence to understand these application requirements. Consequently, they are forced to collect all packet traces that might be useful at the finest granularity to meet a certain level of accuracy requirement. It is up to the network applications to process the per-flow traffic statistics and extract meaningful information. But for a number of applications, it is much more efficient to record packet sequences for flows that match some application-specific signatures, specified using for example regular expressions. A basic approach is to begin memory-copy (recording) when the first character of a regular expression is matched. However, often times, a matching eventually fails, thus consuming unnecessary memory resources during the interim. In this paper, we present a programmable application-aware triggered trace collection system called Network DVR that performs precisely the function of packet content recording based on user-specified trigger signatures. This in turn significantly reduces the number of memory copies that the system has to consume for valid trace collection, which has been shown previously as a key indicator of system performance [8]. We evaluated our Network DVR implementation on a practical application using 10 real datasets that were gathered from a large enterprise Internet gateway. In comparison to the basic approach in which the memory-copy starts immediately upon the first character match without triggered-recording, Network DVR was able to reduce the amount of memory-copies by a factor of over 500x on average across the 10 datasets and over 800x in the best case.

Chang, Chia-Wei; Gerber, Alexandre; Lin, Bill; Sen, Subhabrata; Spatscheck, Oliver

256

Activity-Driven Model for an Interactional Notion of Context.  

National Technical Information Service (NTIS)

Prior research in context-awareness has largely been dominated by a positivist notion of context. While this notion of context is sufficient for well-defined and focused applications, it suffers from two main shortcomings. First, it fails to consider cont...

H. Teo

2009-01-01

257

Awareness and acceptability of human papillomavirus vaccine: an application of the instrumental variables bivariate probit model  

PubMed Central

Background Although lower uptake rates of the human papillomavirus (HPV) vaccine among socioeconomically disadvantaged populations have been documented, less is known about the relationships between awareness and acceptability, and other factors affecting HPV vaccine uptake. The current study aimed to estimate the potential effectiveness of increased HPV vaccine awareness on the acceptability of HPV vaccination in a nationally representative sample of women, using a methodology that controlled for potential non-random selection. Methods This study used a population-based sample from the 2007 Health Information National Trends Survey, a cross-sectional study of the US population aged 18 years or older, and focused on the subsample of 742 women who have any female children under the age of 18 years in the household. An instrumental variables bivariate probit model was used to jointly estimate HPV vaccine awareness and acceptability. Results The proportion of HPV vaccine acceptability among the previously aware and non-aware groups was 58% and 47%, respectively. Results from the instrumental variables bivariate probit model showed that the estimated marginal effect of awareness on acceptability was 46 percentage points, an effect that was even greater than observed. Conclusions Among populations who are not currently aware of the HPV vaccine, the potential impact of raising awareness on acceptability of HPV vaccination is substantial. This finding provides additional support to strengthening public health programs that increase awareness and policy efforts that address barriers to HPV vaccination.

2012-01-01

258

The Interactive Effects of Recruitment Practices and Product Awareness on Job Seekers' Employer Knowledge and Application Behaviors  

Microsoft Academic Search

In this article, the author draws on research from the literature on marketing and recruitment to identify how recruitment practices and company product awareness are related to job seekers' application behaviors through 3 aspects of job seekers' employer knowledge. Based on results from a within-subject design with data from 123 recruiting companies and 456 student job seekers, the author's findings

Christopher J. Collins

2007-01-01

259

The Interactive Effects of Recruitment Practices and Product Awareness on Job Seekers’ Employer Knowledge and Application Behaviors  

Microsoft Academic Search

In this paper, I draw on research from the literatures on marketing and recruitment to identify how recruitment practices and company product awareness are related to job seekers’ application behaviors through three aspects of job seekers’ employer knowledge. Based on results from a within-subjects design with data from 123 recruiting companies and 456 student job seekers, my findings suggested the

Christopher J. Collins

2006-01-01

260

High Performance Computing Software Applications Institute for Space Situational Awareness (HSAI-SSA)  

NASA Astrophysics Data System (ADS)

This poster paper firstly provides a status of the Institute project team's work to date over the past year, starting with brief HSAI background from the Department of Defense (DOD) High Performance Computing Modernization Program (DOD HPCMP). HSAI-SSA is one of only nine DOD institute projects that have been selected by the Deputy Under Secretary of Defense (Science and Technology) to focus and use advanced computational science and high performance computing to accelerate solving the DOD's highest priority challenges and make important advances in research, development, test, and evaluation. HSAI-SSA is the only DOD institute project focused on Space. We next describe Space Situational Awareness (SSA), how its many challenges necessitate supercomputing, and identify the type of disciplines required to solve many SSA problems; and the role of the Institute, which is led by the Air Force Research Laboratory AFRL/RD Directorate and an Onsite Director located on Maui. We then follow with a short discussion of the vision, mission, and overview of the Institute's strategic goals and core competencies. HSAI-SSA core competencies include Image Enhancement, Astrodynamics, Non-Resolvable Satellite Characterization, Data Integration, and High Performance Computing. We then follow up with and most of the poster shows and discusses the technical status for several of our current software applications projects and show the high performance computing metrics we have been able to achieve to date. In closing, we quickly summarize HSAI-SSA challenges, members and partners, and technology transition payoffs for selected applications and users.

Sabol, C.; Schumacher, P.; Duncan, B.

261

Energy-Aware Memory Allocation Framework for Embedded Data-Intensive Signal Processing Applications  

NASA Astrophysics Data System (ADS)

Many signal processing systems, particularly in the multimedia and telecommunication domains, are synthesized to execute data-intensive applications: their cost related aspects — namely power consumption and chip area — are heavily influenced, if not dominated, by the data access and storage aspects. This paper presents an energy-aware memory allocation methodology. Starting from the high-level behavioral specification of a given application, this framework performs the assignment of the multidimensional signals to the memory layers — the on-chip scratch-pad memory and the off-chip main memory — the goal being the reduction of the dynamic energy consumption in the memory subsystem. Based on the assignment results, the framework subsequently performs the mapping of signals into both memory layers such that the overall amount of data storage be reduced. This software system yields a complete allocation solution: the exact storage amount on each memory layer, the mapping functions that determine the exact locations for any array element (scalar signal) in the specification, and an estimation of the dynamic energy consumption in the memory subsystem.

Balasa, Florin; Luican, Ilie I.; Zhu, Hongwei; Nasui, Doru V.

262

Making the World Wide Space Happen: New Challenges for the Nexus Context Platform  

Microsoft Academic Search

Context-aware applications rely on models of the physical world. Within the Nexus project, we envision a World Wide Space which provides the conceptual and technological framework for integrating and sharing such context models in an open, global platform of context providers. In our ongoing research we tackle important challenges in such a platform including distributed processing of streamed context data,

Ralph Lange; Nazario Cipriani; Lars Geiger; Matthias Großmann; Harald Weinschrott; Andreas Brodt; Matthias Wieland; Stamatia Rizou; Kurt Rothermel

2009-01-01

263

Teaching Critical Thinking in Asian EFL Contexts: Theoretical Issues and Practical Applications  

Microsoft Academic Search

This paper considers theoretical issues and practical applications of teaching critical thinking in Asian EFL contexts (e.g., Japanese and Korean). In the first section, I present a definition of 'critical thinking' and argue that misconceptions regarding this definition have limited the teaching of critical thinking skills in Asian EFL contexts. The second section focuses on a specific critical thinking skill

Christopher J. Long

264

Context-based design of mobile applications for museums: a survey of existing practices  

Microsoft Academic Search

This paper includes a review of mobile applications used in museum environments, focusing on the notion of context and its constituent dimensions. Museums are a representative example in which the context influences interaction. During a museum visit, the visitors interact with the exhibits through mobile devices. We argue that, effective interaction design needs to take into consideration multiple dimensions of

Dimitrios Raptis; Nikolaos K. Tselios; Nikolaos M. Avouris

2005-01-01

265

Context Management Middleware in Heterogeneous Mobile Computing Environments  

NASA Astrophysics Data System (ADS)

Mobile computing environments are characterized by heterogeneity-systems consisting of different device types, operating systems, network interfaces, and communication protocols. Such heterogeneity calls for middleware that can adapt to different execution contexts, hide heterogeneity from applications, and transparently and dynamically switch between network and sensor technologies. Additionally, middleware for context-aware systems must keep a context model (a model of their environment), taking into account several aspects of the environment. The more complex and heterogeneous an execution environment is, the more complicated its underlying context model. Moreover, because systems can evolve, context management must also support model evolution without restarting, reconfiguring, or redeploying applications and services. We describe a context management middleware that can efficiently handle context despite the execution environment's heterogeneity and evolution. It uses context meta-information to improve a context-aware system's overall performance.

Qureshi, Salim Raza

2010-11-01

266

Engineering mobile-agent applications via context-dependent coordination  

Microsoft Academic Search

Mobility introduces peculiar coordination problems in agent-based Internet applications. First, it suggests the exploitation of an infrastructure based on a multiplicity of local interaction spaces. Second, it may require coordination activities to be adapted both to the characteristics of the execution environment where they occur and to the needs of the application to which the coordinating agents belong. This paper

Giacomo Cabri; Letizia Leonardi; Franco Zambonelli

2001-01-01

267

A Middleware for Adapting Context to Mobile and Collaborative Learning  

Microsoft Academic Search

The rapid and accelerating move toward the adoption and use of mobile and wireless technologies creates opportunity for new research field-'mobile learning' that includes a variety of applications and new learning techniques. An efficient mobile learning system has to be sensitive to the context that characterizes the interactions between humans, applications and the surrounding environment. Researches in context aware mobile

Jihen Malek; Alain Derycke; Mona Laroussi

2006-01-01

268

Environmental Awareness (Sensory Awareness).  

ERIC Educational Resources Information Center

Capitalizing on the resources available within a city block, this resource guide for the emotionally handicapped (K-6) describes methods and procedures for developing sensory awareness in the urban out-of-doors. Conceptual focus is on interdependency ("living things are interdependent"). Involvement in the environment (observing, thinking, doing)…

Carpenter, Marian

269

Integrating Disability Awareness into Psychology Courses: Applications in Abnormal Psychology and Perception.  

ERIC Educational Resources Information Center

Contends that the rising number of college students makes it imperative that teachers try to increase their own and nondisabled students' awareness of learning, physical, and emotional disabilities. Discusses course content and classroom techniques used to achieve this goal. (CFR)

Wurst, Stephen A.; Wolford, Karen

1994-01-01

270

Distributed situation awareness in dynamic systems: theoretical development and application of an ergonomics methodology  

Microsoft Academic Search

The purpose of this paper is to propose foundations for a theory of situation awareness based on the analysis of interactions between agents (i.e. both human and non-human) in subsystems. This approach may help to promote a better understanding of technology-mediated interaction in systems, as well as helping in the formulation of hypotheses and predictions concerning distributed situation awareness. It

Neville A. Stanton; Rebecca Stewart; Don Harris; Robert J. Houghton; C. Baber; R. McMaster; P. Salmon; G. Hoyle; G. Walker; M. S. Young; M. Linsell; R. Dymott; D. Green

2006-01-01

271

Privacy in context: Privacy issues in Ubiquitous Computing applications  

Microsoft Academic Search

This paper presents a review of privacy issues and guidelines for developing and assessing privacy-sensitive ubiquitous computing applications. Privacy is discussed to determine factors that affect peoples own privacy preferences in public and private environments. Ubiquitous environments based on invisible computers provide a particular challenge where limited user interfaces exist to inform users of the level of data collection and

Ciaran O'driscoll

2008-01-01

272

Adaptive Context Management Using a Component-Based Approach  

Microsoft Academic Search

\\u000a Context-awareness has become a necessity for adaptable intelligent applications and services. It is crucial for ubiquitous\\u000a and pervasive computing because the context of a user or device serves as the source of information to adapt services. In\\u000a this paper, we propose a modular context management system that is able to collect, transform, reason on and use context information\\u000a to adapt

Davy Preuveneers; Yolande Berbers

2005-01-01

273

Effect of context and gender on application of Science Investigation Skills  

NASA Astrophysics Data System (ADS)

Two parallel versions of a Test of Science Investigation Skills were developed to assess students' application of science investigation skills in biology and physics contexts. Repeated pilot testing and critical appraisal were used to ensure the validity of the tests and their equivalence. Both versions of the test were administered to 112 Year 10 science students. The results indicated a satisfactory level of test reliability, the test set in a physics context proved to be significantly more difficult than the test set in a biology context, and mean scores for male and female students were not significantly different.

Hackling, Mark W.; Garnett, Patrick J.

1993-12-01

274

Enhanced Situational Awareness: Application of DDDAS Concepts to Emergency and Disaster Management  

Microsoft Academic Search

We describe a prototype emergency and disaster information system designed and implemented using DDDAS concepts. The system is designed to use real-time cell phone calling data from a geographical region, including call- ing activity - who calls whom, call duration, services in use, and cell phone lo- cation information - to provide enhanced situational awareness for managers in emergency operations

Gregory R. Madey; Albert-lászló Barabási; Nitesh V. Chawla; Marta Gonzalez; David Hachen; Brett Lantz; Alec Pawling; Timothy W. Schoenharl; Gábor Szabó; Pu Wang; Ping Yan

2007-01-01

275

Security Risk Assessment of Decentralized, Mobile Applications: An Analysis of Location Aware Systems  

Microsoft Academic Search

Technological improvements, declining costs and mandates to suppliers from large entities such as Wal-Mart and the Department of Defense are driving investments in RFID and other location aware systems (LAS). Expected benefits from LAS investments include improvements in supply chain integration and streamlined operations. However, LAS may introduce a number of new information security vulnerabilities into organizations that must be

Amy W. Ray; Julian J. Ray

2005-01-01

276

Location aware applications for smart cities with Google maps and GIS tools  

Microsoft Academic Search

The release of internet mapping API like Google maps had changed the way many location aware systems works, this paper will look into how location visualization tools can make use of this new way in providing location service. With the emergence of wireless broadband internet in increasing number of cities, digital cities are being developed all over the world where

Siak Chuan Tan; On Wong

2006-01-01

277

Decoupling capacitance allocation and its application topower-supply noise-aware floorplanning  

Microsoft Academic Search

We investigate the problem of decoupling capacitance allocation for power supply noise suppressionat floorplan level. First, we assume that a floorplan is given, and consider the decoupling capacitanceplacement as a post-floorplan step. Second, we consider the decoupling capacitance placement as anintegral part of a floorplanning methodology (noise aware floorplanning). In both cases, the objectiveis to minimize the floorplan area while

Shiyou Zhao; Kaushik Roy; Cheng-kok Koh

2002-01-01

278

Intelligent M-Government: Application of Personalisation and Location Awareness Techniques  

Microsoft Academic Search

This paper proposes the use of personalisation and location awareness techniques to efficiently select then deliver the appropriate M-Government services to the desired users who most benefit from the services according to their geographical location. A logical architecture for provisioning governmental location-based services to citizens is suggested which will ease the creation of Intelligent M-Government Services that can match the

Shadi Al-khamayseh; Omar Hujran; Anas Aloudat; Elaine Lawrence

279

Kernel Springy Discriminant Analysis and Its Application to a Phonological Awareness Teaching System  

Microsoft Academic Search

Making use of the ubiquitous kernel notion, we present a new nonlinear supervised feature extraction technique called Kernel\\u000a Springy Discriminant Analysis. We demonstrate that this method can efficiently reduce the number of features and increase\\u000a classification performance. The improvements obtained admittedly arise from the nonlinear nature of the extraction technique\\u000a developed here. Since phonological awareness is a great importance in

András Kocsor; Kornél Kovács

2002-01-01

280

Designing for privacy and self-presentation in social awareness  

Microsoft Academic Search

Social awareness applications are based on the idea of a group sharing real-time context information via personal and ubiquitous terminals. Studies of such appli- cations have shown that users are not only concerned with the preservation privacy through non-disclosure. Instead, disclosure is manipulated for the constant presentation of self to the group in everyday social situations. Basing on 3 years

Mika Raento; Antti Oulasvirta

2008-01-01

281

User tracking by sensorfusion for situation aware systems  

Microsoft Academic Search

Context-aware applications for mobile computers (PDAs) need a high quality of globally sensor input. Multimodal sensor systems as well as tracking of location, userprofile and environment changes are trying to archive new and better possibilities for the interpretation of the users interaction with the environment. Some relevant solutions of high accuracy tracking systems do already exist. The task of a

Gerald Bieber; Malte Korten

2001-01-01

282

An Embeddable Fusion Framework to Manage Context Information in Mobile Devices  

NASA Astrophysics Data System (ADS)

Conveniently fused and combined with data from external sources, information from sensors embedded in a mobile device may offer a dynamic view of the user's situation, sufficient to build adaptive context-aware services. In order to shorten the development cycle of these applications, an embeddable framework to acquire, fuse and reason on context information is hereby described. 'CASanDRA Mobile' is designed to work autonomously in resource-constrained devices, offering to application developers a transparent management of context information. Based on a service-oriented architecture implemented in mobile OSGi, it offers a scalable infrastructure of bundles which decouple context acquisition and automate context inference from application development. 'CASanDRA Mobile' aims at providing the user with full control on his private context data, by using privacy policies suitable to handle P2P context sharing. To exemplify how to use the framework features, the design procedure for a context-aware wellness application is described.

Bernardos, Ana M.; Madrazo, Eva; Casar, José R.

283

Applying predictive analytics to develop an intelligent risk detection application for healthcare contexts.  

PubMed

Healthcare is an information rich industry where successful outcomes require the processing of multi-spectral data and sound decision making. The exponential growth of data and big data issues coupled with a rapid increase of service demands in healthcare contexts today, requires a robust framework enabled by IT (information technology) solutions as well as real-time service handling in order to ensure superior decision making and successful healthcare outcomes. Such a context is appropriate for the application of real time intelligent risk detection decision support systems using predictive analytic techniques such as data mining. To illustrate the power and potential of data science technologies in healthcare decision making scenarios, the use of an intelligent risk detection (IRD) model is proffered for the context of Congenital Heart Disease (CHD) in children, an area which requires complex high risk decisions that need to be made expeditiously and accurately in order to ensure successful healthcare outcomes. PMID:23920700

Moghimi, Fatemeh Hoda; Cheung, Michael; Wickramasinghe, Nilmini

2013-01-01

284

Exchanging the Context between OGC Geospatial Web clients and GIS applications using Atom  

NASA Astrophysics Data System (ADS)

Currently, the discovery and sharing of geospatial information over the web still presents difficulties. News distribution through website content was simplified by the use of Really Simple Syndication (RSS) and Atom syndication formats. This communication exposes an extension of Atom to redistribute references to geospatial information in a Spatial Data Infrastructure distributed environment. A geospatial client can save the status of an application that involves several OGC services of different kind and direct data and share this status with other users that need the same information and use different client vendor products in an interoperable way. The extensibility of the Atom format was essential to define a format that could be used in RSS enabled web browser, Mass Market map viewers and emerging geospatial enable integrated clients that support Open Geospatial Consortium (OGC) services. Since OWS Context has been designed as an Atom extension, it is possible to see the document in common places where Atom documents are valid. Internet web browsers are able to present the document as a list of items with title, abstract, time, description and downloading features. OWS Context uses GeoRSS so that, the document can be to be interpreted by both Google maps and Bing Maps as items that have the extent represented in a dynamic map. Another way to explode a OWS Context is to develop an XSLT to transform the Atom feed into an HTML5 document that shows the exact status of the client view window that saved the context document. To accomplish so, we use the width and height of the client window, and the extent of the view in world (geographic) coordinates in order to calculate the scale of the map. Then, we can mix elements in world coordinates (such as CF-NetCDF files or GML) with elements in pixel coordinates (such as WMS maps, WMTS tiles and direct SVG content). A smarter map browser application called MiraMon Map Browser is able to write a context document and read it again to recover the context of the previous view or load a context generated by another application. The possibility to store direct links to direct files in OWS Context is particularly interesting for GIS desktop solutions. This communication also presents the development made in the MiraMon desktop GIS solution to include OWS Context. MiraMon software is able to deal either with local files, web services and database connections. As in any other GIS solution, MiraMon team designed its own file (MiraMon Map MMM) for storing and sharing the status of a GIS session. The new OWS Context format is now adopted as an interoperable substitution of the MMM. The extensibility of the format makes it possible to map concepts in the MMM to current OWS Context elements (such as titles, data links, extent, etc) and to generate new elements that are able to include all extra metadata not currently covered by OWS Context. These developments were done in the nine edition of the OpenGIS Web Services Interoperability Experiment (OWS-9) and are demonstrated in this communication.

Maso, Joan; Díaz, Paula; Riverola, Anna; Pons, Xavier

2013-04-01

285

Mobile Context Provider for Social Networking  

NASA Astrophysics Data System (ADS)

The ability to infer user context based on a mobile device together with a set of external sensors opens up the way to new context-aware services and applications. In this paper, we describe a mobile context provider that makes use of sensors available in a smartphone as well as sensors externally connected via bluetooth. We describe the system architecture from sensor data acquisition to feature extraction, context inference and the publication of context information to well-known social networking services such as Twitter and Hi5. In the current prototype, context inference is based on decision trees, but the middleware allows the integration of other inference engines. Experimental results suggest that the proposed solution is a promising approach to provide user context to both local and network-level services.

Santos, André C.; Cardoso, João M. P.; Ferreira, Diogo R.; Diniz, Pedro C.

286

Experiences Using Adaptive Middleware in Distributed Real-time Embedded Application Contexts: a Dependability Perspective  

Microsoft Academic Search

Over the past few years we have developed a number of real world applications that have both motivated and used middleware technologies for COTS-based distributed ob- ject computing in general, and runtime adaptive behavior in particular. In this context, a new twist on the theme of dependability involves adaptation as an effective means for dealing with the less-than-optimum situations that

Christopher D. Gill; Joseph P. Loyall; Richard E Schantz; Douglas C. Schmidt

287

mrsFAST-Ultra: a compact, SNP-aware mapper for high performance sequencing applications.  

PubMed

High throughput sequencing (HTS) platforms generate unprecedented amounts of data that introduce challenges for processing and downstream analysis. While tools that report the 'best' mapping location of each read provide a fast way to process HTS data, they are not suitable for many types of downstream analysis such as structural variation detection, where it is important to report multiple mapping loci for each read. For this purpose we introduce mrsFAST-Ultra, a fast, cache oblivious, SNP-aware aligner that can handle the multi-mapping of HTS reads very efficiently. mrsFAST-Ultra improves mrsFAST, our first cache oblivious read aligner capable of handling multi-mapping reads, through new and compact index structures that reduce not only the overall memory usage but also the number of CPU operations per alignment. In fact the size of the index generated by mrsFAST-Ultra is 10 times smaller than that of mrsFAST. As importantly, mrsFAST-Ultra introduces new features such as being able to (i) obtain the best mapping loci for each read, and (ii) return all reads that have at most n mapping loci (within an error threshold), together with these loci, for any user specified n. Furthermore, mrsFAST-Ultra is SNP-aware, i.e. it can map reads to reference genome while discounting the mismatches that occur at common SNP locations provided by db-SNP; this significantly increases the number of reads that can be mapped to the reference genome. Notice that all of the above features are implemented within the index structure and are not simple post-processing steps and thus are performed highly efficiently. Finally, mrsFAST-Ultra utilizes multiple available cores and processors and can be tuned for various memory settings. Our results show that mrsFAST-Ultra is roughly five times faster than its predecessor mrsFAST. In comparison to newly enhanced popular tools such as Bowtie2, it is more sensitive (it can report 10 times or more mappings per read) and much faster (six times or more) in the multi-mapping mode. Furthermore, mrsFAST-Ultra has an index size of 2GB for the entire human reference genome, which is roughly half of that of Bowtie2. mrsFAST-Ultra is open source and it can be accessed at http://mrsfast.sourceforge.net. PMID:24810850

Hach, Faraz; Sarrafi, Iman; Hormozdiari, Farhad; Alkan, Can; Eichler, Evan E; Sahinalp, S Cenk

2014-07-01

288

Spatially aware expectation maximization (SpAEM): application to prostate TRUS segmentation  

NASA Astrophysics Data System (ADS)

In this paper we introduce Spatially Aware Expectation Maximization (SpAEM), a new parameter estimation method which incorporates information pertaining to spatial prior probability into the traditional expectation- maximization framework. For estimating the parameters of a given class, the spatial prior probability allows us to weight the contribution of any pixel based on the probability of that pixel belonging to the class of interest. In this paper we evaluate SpAEM for the problem of prostate capsule segmentation in transrectal ultrasound (TRUS) images. In cohort of 6 patients, SpAEM qualitatively and quantitatively outperforms traditional EM in distinguishing the foreground (prostate) from background (non-prostate) regions by around 45% in terms of the Sorensen Dice overlap measure, when compared against expert annotations. The variance of the estimated parameters measured via Cramer-Rao Lower Bound suggests that SpAEM yields unbiased estimates. Finally, on a synthetic TRUS image, the Cramer-Von Mises (CVM) criteria shows that SpAEM improves the estimation accuracy by around 51% and 88% for prostate and background, respectively, as compared to traditional EM.

Orooji, Mahdi; Sparks, Rachel; Bloch, B. Nicolas; Feleppa, Ernest; Barratt, Dean; Madabhushi, Anant

2014-03-01

289

Evolvable Systems on Reconfigurable Architecture via Self-Aware Adaptive Applications  

Microsoft Academic Search

Self-adaptive applications are capable of changing their behavior thousands of times per second to autonomically find a way to accomplish given goals despite working in an unpredictable environment whose conditions can vary continuously. In this work we propose an evolvable system that runs self-adaptive applications on top of a heterogeneous system consisting of a general purpose processor and a reconfigurable

Andrea Cuoccio; Henry Hoffmann; Martina Maggio; Marco Domenico Santambrogio

2011-01-01

290

A Design Framework for Awareness Systems  

NASA Astrophysics Data System (ADS)

This chapter discusses the design of awareness systems, whose main function is a social one, namely, to support social communication, mediated social interactions and eventually relationships of the individuals they connect. We focus especially on connecting friends and family rather than on systems used in the context of collaborative work. Readers interested in this latter kind of applications are referred to the design frameworks by Ginelle and Gutwin (2005) and Gutwin and Greenberg (2002). Below, we outline the relevant design space and the corresponding challenges for the design of awareness systems. The challenges pertain to social aspects of interaction design rather than the technological challenges relating to such systems. As such, they are inspired by Jonathan Grudin’s exposition of design challenges for the domain of groupware applications (Grudin, 1994).

Markopoulos, Panos

291

Online Formative Assessments with Social Network Awareness  

ERIC Educational Resources Information Center

Social network awareness (SNA) has been used extensively as one of the strategies to increase knowledge sharing and collaboration opportunities. However, most SNA studies either focus on being aware of peer's knowledge context or on social context. This work proposes online formative assessments with SNA, trying to address the problems of online…

Lin, Jian-Wei; Lai, Yuan-Cheng

2013-01-01

292

Building Awareness.  

ERIC Educational Resources Information Center

Discusses the importance of developing students' building awareness by exploring logos, or buildings that symbolize a country, to learn about architecture and the cultures in different countries. Explores categories of buildings. Includes examples of logos from around the world. (CMK)

Meilach, Dona Z.

2001-01-01

293

Awareness of and attitudes towards heat waves within the context of climate change among a cohort of residents in Adelaide, Australia.  

PubMed

Heat waves are a public health concern in Australia and unprecedented heat waves have been recorded in Adelaide over recent years. The aim of this study was to examine the perception and attitudes towards heat waves in the context of climate change among a group of residents in Adelaide, an Australian city with a temperate climate. A cross-sectional study was conducted in the summer of 2012 among a sample of 267 residents. The results of the survey found that television (89.9%), radio (71.2%), newspapers (45.3%) were the main sources from which respondents received information about heat waves. The majority of the respondents (73.0%) followed news about heat waves very or somewhat closely. About 26.6% of the respondents were extremely or very concerned about the effects of heat waves on them personally. The main issues that were of personal concern for respondents during a heat wave were their personal comfort (60.7%), their garden (48.7%), and sleeping well (47.6%). Overall, respondents were more concerned about the impacts of heat waves to the society than on themselves. There was a significant association between gender (?² = 21.2, df = 3, p = 0.000), gross annual household income (p = 0.03) and concern for the societal effects of heat waves. Less than half (43.2%) of the respondents believed that heat waves will extremely or very likely increase in Adelaide according to climate projections. Nearly half (49.3%) believed that the effects of heat waves were already being felt in Adelaide. These findings may inform the reframing and communication strategies for heat waves in Adelaide in the context of climate change. PMID:23343978

Akompab, Derick A; Bi, Peng; Williams, Susan; Grant, Janet; Walker, Iain A; Augoustinos, Martha

2013-01-01

294

FORTRESS: A System to Support Fail-Aware Real-Time Applications  

Microsoft Academic Search

The guaranteed response paradigm to design hard real-time systems is only applicable for systems with an a priori known load pattern. Thus, it is in general not possible to design complex distributed real-time systems completely according to the guaranteed response paradigm. In this paper we describe the Fortress system which is an attempt to provide a common framework to design

Christof Fetzer; Flaviu Cristian

1997-01-01

295

Rethinking the lecture: the application of problem based learning methods to atypical contexts.  

PubMed

Problem based learning is a teaching and learning strategy that uses a problematic stimulus as a means of motivating and directing students to develop and acquire knowledge. Problem based learning is a strategy that is typically used with small groups attending a series of sessions. This article describes the principles of problem based learning and its application in atypical contexts; large groups attending discrete, stand-alone sessions. The principles of problem based learning are based on Socratic teaching, constructivism and group facilitation. To demonstrate the application of problem based learning in an atypical setting, this article focuses on the graduate nurse intake from a teaching hospital. The groups are relatively large and meet for single day sessions. The modified applications of problem based learning to meet the needs of atypical groups are described. This article contains a step by step guide of constructing a problem based learning package for large, single session groups. Nurse educators facing similar groups will find they can modify problem based learning to suit their teaching context. PMID:17950670

Rogal, Sonya M M; Snider, Paul D

2008-05-01

296

Memory-Aware Optimal Scheduling with Communication Overhead Minimization for Streaming Applications on Chip Multiprocessors  

Microsoft Academic Search

In this paper, we focus on solving the problem of removing inter-core communication overhead for streaming applications on chip multiprocessors. The objective is to totally remove inter-core communication overhead while minimizing the overall memory usage. By totally removing inter-core communication overhead, a shorter period can be applied and system throughput can be improved. Our basic idea is to let tasks

Yi Wang; Duo Liu; Zhiwei Qin; Zili Shao

2010-01-01

297

CONTEXT-AWARE MOBILE LEARNING WITH PEDIAPHON - A TEXT-TO-SPEECH INTERFACE TO THE FREE WIKIPEDIA ENCYCLOPEDIA FOR CELL PHONES AND MP3-PLAYERS  

Microsoft Academic Search

This paper presents an approach to generate audio based learning material dynamically from web pages for m-Learning and ubiquitous access. It introduces Pediaphon (an audio interface to the free Wikipedia online encyclopedia) as an example application for microlearning. The effective generation and the deployment of the audio data to the user via podcast or progressive download (pseudo streaming) are covered.

Andreas Bischoff

298

Effects of customization on application decisions and applicant pool characteristics in a web-based recruitment context.  

PubMed

The authors examined 2 forms of customization in a Web-based recruitment context. Hypotheses were tested in a controlled study in which participants viewed multiple Web-based job postings that each included information about multiple fit categories. Results indicated that customization of information regarding person-organization (PO), needs-supplies, and demands-abilities (DA) fit (fit information customization) and customization of the order in which these fit categories were presented (configural customization) had differential effects on outcomes. Specifically, (a) applicant pool PO and DA fit were greater when fit information customization was provided, (b) applicant pool fit in high- versus low-relevance fit categories was better differentiated when configural customization was provided, and (c) overall application rates were lower when either or both forms of customization were provided. (PsycINFO Database Record (c) 2009 APA, all rights reserved). PMID:19186907

Dineen, Brian R; Noe, Raymond A

2009-01-01

299

A metadata-aware application for remote scoring and exchange of tissue microarray images  

PubMed Central

Background The use of tissue microarrays (TMA) and advances in digital scanning microscopy has enabled the collection of thousands of tissue images. There is a need for software tools to annotate, query and share this data amongst researchers in different physical locations. Results We have developed an open source web-based application for remote scoring of TMA images, which exploits the value of Microsoft Silverlight Deep Zoom to provide a intuitive interface for zooming and panning around digital images. We use and extend existing XML-based standards to ensure that the data collected can be archived and that our system is interoperable with other standards-compliant systems. Conclusion The application has been used for multi-centre scoring of TMA slides composed of tissues from several Phase III breast cancer trials and ten different studies participating in the International Breast Cancer Association Consortium (BCAC). The system has enabled researchers to simultaneously score large collections of TMA and export the standardised data to integrate with pathological and clinical outcome data, thereby facilitating biomarker discovery.

2013-01-01

300

Chance of Vulnerability Reduction in Application-Specific NoC through Distance Aware Mapping Algorithm  

NASA Astrophysics Data System (ADS)

Mapping algorithm which means which core should be linked to which router is one of the key issues in the design flow of network-on-chip. To achieve an application-specific NoC design procedure that minimizes the communication cost and improves the fault tolerant property, first a heuristic mapping algorithm that produces a set of different mappings in a reasonable time is presented. This algorithm allows the designers to identify the set of most promising solutions in a large design space, which has low communication costs while yielding optimum communication costs in some cases. Another evaluated parameter, vulnerability index, is then considered as a principle of estimating the fault-tolerance property in all produced mappings. Finally, in order to yield a mapping which considers trade-offs between these two parameters, a linear function is defined and introduced. It is also observed that more flexibility to prioritize solutions within the design space is possible by adjusting a set of if-then rules in fuzzy logic.

Janidarmian, Majid; Fekr, Atena Roshan; Bokharaei, Vahhab Samadi

2011-08-01

301

AHRI: Aware Home Research Initiative  

NSDL National Science Digital Library

The Aware Home Research Initiative (AHRI) is a project at the Georgia Institute of Technology that seeks to "create a home environment that is aware of its occupants' whereabouts and activities." One of the main focuses of AHRI is the design of specialized technologies to assist older adults or help keep them in closer contact with relatives. This site describes the motivation for the initiative and outlines the goals of intelligent, context-aware systems. A large collection of research papers is presented, highlighting AHRI insights into privacy issues, design challenges, and software engineering for such technology.

302

Wildfire Awareness.  

ERIC Educational Resources Information Center

Provides information about the Firewise Program whose goal is to assist people to become more fire-aware and better prepared for the effects of wildfire on property. Discusses why there are so many wildfires and what can be done. Includes the Wildland Fire Risk and Hazard Severity Assessment Form. (KHR)

Wallace, Glenda

2002-01-01

303

AWARE Foundation  

NSDL National Science Digital Library

The mission of the Adolescent Wellness and Reproductive Education Foundation (AWARE) is "dedicated to educating and empowering adolescents to make responsible decisions regarding their wellness, sexuality and reproductive health." Additionally, the AWARE Foundation also is concerned with reaching out to parents as well, in order to keep them informed about various issues affecting teen health and sexuality. The site features an area where parents and young people can ask questions, which will be answered by a team of health care specialists. In addition, visitors can take part in live chat sessions about teen health, or simply read through transcripts of previous live chat sessions. The site also provides a Fast Facts list that details some brief, but important, facts about teen sexuality and reproductive health. Finally, the site also contains a number of emergency health resources, including Web sites and phone numbers of organizations that deal with eating disorders, sexual abuse, and mental health.

304

Explicit context matching in content-based publish/subscribe systems.  

PubMed

Although context could be exploited to improve performance, elasticity and adaptation in most distributed systems that adopt the publish/subscribe (P/S) communication model, only a few researchers have focused on the area of context-aware matching in P/S systems and have explored its implications in domains with highly dynamic context like wireless sensor networks (WSNs) and IoT-enabled applications. Most adopted P/S models are context agnostic or do not differentiate context from the other application data. In this article, we present a novel context-aware P/S model. SilboPS manages context explicitly, focusing on the minimization of network overhead in domains with recurrent context changes related, for example, to mobile ad hoc networks (MANETs). Our approach represents a solution that helps to effciently share and use sensor data coming from ubiquitous WSNs across a plethora of applications intent on using these data to build context awareness. Specifically, we empirically demonstrate that decoupling a subscription from the changing context in which it is produced and leveraging contextual scoping in the filtering process notably reduces (un)subscription cost per node, while improving the global performance/throughput of the network of brokers without altering the cost of SIENA-like topology changes. PMID:23529118

Vavassori, Sergio; Soriano, Javier; Lizcano, David; Jiménez, Miguel

2013-01-01

305

Assessing the Development of Critical Language Awareness in a Foreign Language Environment.  

ERIC Educational Resources Information Center

Critical language awareness refers to how conscious people are of the ideologies hidden in the language. A study was carried out to determine whether such a critical perspective towards text could be developed in an English-as-a-Foreign-Language (EFL) context. This paper evaluates the results of the application of methods of critical discourse…

Zinkgraf, Magdalena

306

Requirements and Challenges in the Design of Privacy-aware Sensor Networks  

Microsoft Academic Search

Sensor networks are set to become a truly ubiqui- tous technology that will affect the lives of the people in their application environment. While providing the opportunity for sophisticated, context-aware services, at the same time sensor networks impose great privacy risks. This paper discusses privacy issues in sensor networks, by identifying the requirements for privacy preserving deployments, analysing the challenges

Efthimia Aivaloglou; Stefanos Gritzalis; Charalabos Skianis

2006-01-01

307

Context-Aware Usage Control for Android  

Microsoft Academic Search

\\u000a The security of smart phones is increasingly important due to their rapid popularity. Mobile computing on smart phones introduces\\u000a many new characteristics such as personalization, mobility, pay-for-service and limited resources. These features require\\u000a additional privacy protection and resource usage constraints in addition to the security and privacy concerns on traditional\\u000a computers. As one of the leading open source mobile platform,

Guangdong Bai; Liang Gu; Tao Feng; Yao Guo; Xiangqun Chen

2010-01-01

308

Privacy Preservation in Context-Aware Systems.  

National Technical Information Service (NTIS)

Recent years have seen a confluence of two major trends - the increase of mobile devices such as smart phones as the primary access point to networked information and the rise of social media platforms that connect people. Their convergence supports the e...

P. Jagtap

2011-01-01

309

Context-Aware Sensors and Data Muling  

Microsoft Academic Search

Efficient collection of data represents one of the key challe nges for sparsely deployed wireless sensor networks, due to issues that include heavily imposing particular nodes to relay sampled data and also draining sensor energy due to possible transmissions over long distances. A possible solution is to use existing data carriers, also known as data mules, in the envi ronment.

Suan Khai Chong; Ian McCauley; Seng Wai Loke; Shonali Krishnaswamy

310

Context Awareness by Analyzing Accelerometer Data  

Microsoft Academic Search

In this paper we describe continuing work being carried out as part of the Bristol Wearable Computing Initiative. We are researching processing techniques for data from ac- celerometers which enable the wearable computer to deter- mine the user's activity. Techniques already employed by others have been explored and we propose new methods for analysing the data delivered by these devices.

Cliff Randell; Henk L. Muller

2000-01-01

311

Situation awareness in emergency medical dispatch  

Microsoft Academic Search

Situation Awareness, and how systems can be designed to support it appropriately, have been a focus of study in dynamic, safety critical contexts such as aviation. The work reported here extends the study of situation awareness into the domain of Emergency Medical Dispatch (EMD). The study was conducted in one of the largest ambulance services in the world. In this

Ann Blandford; B. L. William Wong

2004-01-01

312

Context-dependent player's movement interpretation: application to adaptive game development  

NASA Astrophysics Data System (ADS)

Video games are more and more controlled by the real movements of the player. However, the player is constrained by the system devices, imposing a limited vocabulary of actions associated with a set of unnatural movements. To introduce more entertaining video games to players, a component-based architecture is proposed. It has been acknowledged as the starting point for the development of adaptive applications based on the hypothesis of a high level dialogue between the system and the player. The system adaptability relies on interpretation mechanisms of the player behaviors. These behaviors are defined through the representation of the real movements of the player who freely interacts with the 3D elements composing an immersive virtual environment, following a given game scenario. The efficient interpretation of the player movements relies on the introduction in the system of the management of the scene's context. The contextual information not only helps to determine the true meaning of an observed behavior but also makes the system to adapt its processes regarding this interpretation, while managing its hardware and software resources efficiently. A commercial motion capture interface has been enhanced by the elaboration of such a system.

Picard, Francois; Estraillier, Pascal

2010-02-01

313

An illustrative application of soft systems methodology (SSM) in a library and information service context : Process and outcome  

Microsoft Academic Search

Purpose – The purpose of this paper is to provide an illustration of the methodological processes and resultant outcomes relating to one theme investigated during an application of soft systems methodology (SSM) in a library and information service (LIS) context, in order to contribute to the explication of the methodology to LIS professionals. Design\\/methodology\\/approach – A selective but detailed description

Rachel Delbridge

2008-01-01

314

Current awareness  

PubMed

In order to keep subscribers up-to-date with the latest developments in their field, John Wiley & Sons are providing a current awareness service in each issue of the journal. The bibliography contains newly published material in the field of NMR in biomedicine. Each bibliography is divided into 9 sections: 1 Books, Reviews ' Symposia; 2 General; 3 Technology; 4 Brain and Nerves; 5 Neuropathology; 6 Cancer; 7 Cardiac, Vascular and Respiratory Systems; 8 Liver, Kidney and Other Organs; 9 Muscle and Orthopaedic. Within each section, articles are listed in alphabetical order with respect to author. If, in the preceding period, no publications are located relevant to any one of these headings, that section will be omitted. PMID:10960923

Hecke

2000-08-01

315

Wavelet image compression based on bit-plane context and its application to remote sensing images  

Microsoft Academic Search

A novel wavelet image compression scheme is proposed in this paper. The scheme is based on bit-plane context and adaptive arithmetic coding. Parent coefficient and parent neighboring coefficients of current coding coefficient are used to construct context models besides its neighboring coefficients. Higher order entropy is sufficiently employed. Experimental results show that the scheme is among the best image coders

Qingyuan Wang; Runhai Jiao; Yuancheng Li; Bo Li

2005-01-01

316

Context-Based E-Health System Access Control Mechanism  

NASA Astrophysics Data System (ADS)

E-Health systems logically demand a sufficiently fine-grained authorization policy for access control. The access to medical information should not be just role-based but should also include the contextual condition of the role to access data. In this paper, we present a mechanism to extend the standard role-based access control to incorporate contextual information for making access control decisions in e-health application. We present an architecture consisting of authorisation and context infrastructure that work cooperatively to grant access rights based on context-aware authorization policies and context information.

Al-Neyadi, Fahed; Abawajy, Jemal H.

317

Unmanned Vehicle Situation Awareness  

Microsoft Academic Search

This paper presents the concept of unmanned vehicle situation awareness and provides a discussion of how unmanned vehicle situation awareness can be defined based upon human situation awareness. A broadly accepted human situation awareness definition is directly applied to the notion of unmanned vehicle situation awareness. The paper also discusses unique unmanned vehicle aspects that will influence unmanned vehicle situation

Julie A. Adams

318

A Summary of Students' Mental Models and Their Applications in Contexts Pertaining to Newton's II Law  

NSDL National Science Digital Library

In this study, presented at the 2002 Physics Education Research Conference, authors describe their investigation of students' use of Newton's II law in mechanics and electricity and magnetism contexts. They interviewed 16 students in a two-semester calculus-based physics course and found students' answers are consistent with two principal mental models and a combination of these two. The authors also explore whether the students who use Newton's Second Law in mechanics contexts continue to do so in electricity and magnetism.

Itza-Ortiz, Salomon F.; Rebello, N. S.

2010-11-04

319

A Logic Based Context Query Language  

Microsoft Academic Search

\\u000a Context is a basic ingredient in pervasive computing. It refers to user’s both external environment and internal status, implying\\u000a user’s information needs during the interaction between the user and computer systems. By context-awareness, a variety of\\u000a context information from heterogeneous sources is sensed, inferred, and exploited to facilitate information systems to better\\u000a understand users’ needs and deliver the right context-aware

Ling Feng; Junhui Deng; Zhanjiang Song; Wenwei Xue

2010-01-01

320

A comparison of near surface CO2 monitoring methods and their applicability in the CCS context  

NASA Astrophysics Data System (ADS)

The detection, characterization and quantification of different gas species in the vicinity of the soil-atmosphere interface is considered as one key element of near surface monitoring related to CO2 storage operations. From a broad range of available techniques (see e.g. Korre et al. 2011 and Rütters et al. 2013), three different methods have initially been selected in order to compare their applicability in the CCS context: - The eddy covariance method which can compute CO2 fluxes within the atmospheric boundary layer, - CO2 flux measurements between soil and atmosphere by means of accumulation chambers, - Permanent CO2 concentration measurements in the vadose zone of the soil column. Additionally, basic atmospheric CO2 concentration measurements were also included in this comparison since they might have a potential as monitoring alternative on a low-cost basis. Results and lessons learned from practical field experiments were elaborated to point out advantages and disadvantages of the individual methods as well as their integration into an overall monitoring concept of CO2 storage sites. Field work has been carried out in different locations of Northern Germany, amongst others in the Altmark region, a formerly proposed CO2 injection site for enhanced gas recovery (Schlömer et al. 2014). This study benefits from interim results of the MONACO project (Monitoring approach for geological CO2 storage sites using an hierarchic observation concept) which is funded by the German Federal Ministry of Education and Research (BMBF, grant 03G0817A). References: Korre, A., Imrie, C.E., May, F., Beaubien, S.E., Vandermeijer, V., Persoglia, S., Golmen, L., Fabriol, H., Dixon, T., 2011. Quantification techniques for potential CO2 leakage from geological storage sites. Energy Proc. 4, pp. 3413-3420. Rütters, H., Möller, I., May, F., Flornes, K., Hladik, V., Arvanitis, A., Gülec, N.,Bakiler, C., Dudu, A., Kucharic, L., Juhojuntti, N., Shogenova, A., Georgiev, G., 2013. State-of-the-art of monitoring methods to evaluate storage site performance. CGS Europe Report D3.3. 109 pp. http://repository.cgseurope.net/eng/cgseurope/knowledge-repository/key-reports/Monitoring.aspx Schlömer, S., Möller, I., Furche, M., 2014. Baseline soil gas measurements as part of a monitoring concept above a projected CO2 injection formation - A case study from Northern Germany. Int. J. Greenhouse Gas Control, Vol. 20, p. 57-72. http://dx.doi.org/10.1016/j.ijggc.2013.10.028.

Möller, Ingo; Schlömer, Stefan

2014-05-01

321

The OGC Publish/Subscribe specification in the context of sensor-based applications  

NASA Astrophysics Data System (ADS)

The Open Geospatial Consortium Publish/Subscribe Standards Working Group (in short, OGC PubSub SWG) was chartered in 2010 to specify a mechanism to support publish/subscribe requirements across OGC service interfaces and data types (coverage, feature, etc.) The Publish/Subscribe Interface Standard 1.0 - Core (13-131) defines an abstract description of the basic mandatory functionality, along with several optional, extended capabilities. The Core is independent of the underlying binding, for which two extensions are currently considered in the PubSub SWG scope: a SOAP binding and RESTful binding. Two primary parties characterize the publish/subscribe model: a Publisher, which is publishing information, and a Subscriber, which expresses an interest in all or part of the published information. In many cases, the Subscriber and the entity to which data is to be delivered (the Receiver) are one and the same. However, they are distinguished in PubSub to allow for these roles to be segregated. This is useful, for example, in event-based systems, where system entities primarily react to incoming information and may emit new information to other interested entities. The Publish/Subscribe model is distinguished from the typical request/response model, where a client makes a request and the server responds with either the requested information or a failure. This provides relatively immediate feedback, but can be insufficient in cases where the client is waiting for a specific event (such as data arrival, server changes, or data updates). In fact, while waiting for an event, a client must repeatedly request the desired information (polling). This has undesirable side effects: if a client polls frequently this can increase server load and network traffic, and if a client polls infrequently it may not receive a message when it is needed. These issues are accentuated when event occurrences are unpredictable, or when the delay between event occurrence and client notification must be small. Instead, the Publish/Subscribe model is characterized by the ability for a Subscriber to specify an ongoing (persistent) expression of interest in some messages, and by the asynchronous delivery of such messages. Hence, the publish/subscribe model can be useful to reduce the latency between event occurrence and event notification, as it is the Publisher's responsibility to publish a message when the event occurs, rather than relying on clients to anticipate the occurrence. The following cross-service requirements have been identified for PubSub 1.0: • Provide notification capabilities as a module to existing OGC services with no impact on existing service semantics and by reusing service-specific filtering semantics. • Usable as a way to push actual data (not only references to data) from a data access service (i.e. WCS, WFS, SOS) to the client. • Usable as a way to push notification messages (i.e. lightweight, no data but rather references to data) to the client. • Usable as a way to provide notifications of service and dataset updates in order to simplify/optimize harvesting by catalogs. The use-cases identified for PubSub 1.0 include: • Service Filtered Data Push. • Service Filtered Notification. • Notification of Threshold Crossings. • FAA SAA Dissemination Pilot. • Emergency / Safety Critical Application. The above suggests that the OGC Publish/Subscribe specification could be successfully applied to sensor-based monitoring. This work elaborates on this technology and its possible applications in this context.

Bigagli, Lorenzo

2014-05-01

322

A JavaRMI-Based Application Supporting Interoperability in a GIS Context  

Microsoft Academic Search

The growth of the Internet has emphasized the need for interoperability among different and heterogeneous systems, i.e. their ability to exchange data and services in a transparent way. The article addresses interoperability in a GIS context where systems, historically monolithics, need to exchange spatial data. The work is based on the models proposed by the OpenGIS Consortium, whose mission is

Pierpaolo Vittorini; Paolino Di Felice

1999-01-01

323

Test Report for Context Driven Integrated Model (CDIM) Application B3.  

National Technical Information Service (NTIS)

The subject of the test report is the CDIM-B3 data model as documented in PMT008.01.00. The scope of test subject is defined in the CDIM-B3 context and Numerical Control (NC) activity model (PMT007.01.00). CDIM-B3 subsumes CDIM-A1 in its entirety. CDIM-B3...

S. Schachtner M. Maretta

1990-01-01

324

Functional Grammar in the Context of Linguistic Applications in Turkish Language Teaching  

ERIC Educational Resources Information Center

In the last century, language researches adopted the scientific method and linguistics became an autonomous discipline. Linguistics is a framework concept that analyzes all languages in the world in various contexts according to its own rules and draws conclusions using the systematic approach. Functional linguistics is a linguistic trend that…

Epcacan, Cahit

2013-01-01

325

Advanced Weather Awareness and Reporting Enhancements  

NASA Technical Reports Server (NTRS)

AWARE (Aviation Weather Awareness and Reporting Enhancements) was a NASA Cooperative Research and Development program conducted jointly by Rockwell Scientific, Rockwell Collins, and NASA. The effort culminated in an enhanced weather briefing and reporting tool prototype designed to integrate graphical and text-based aviation weather data to provide clear situational awareness in the context of a specific pilot, flight and equipment profile. The initial implementation of AWARE was as a web-based preflight planning tool, specifically for general aviation pilots, who do not have access to support such as the dispatchers available for commercial airlines. Initial usability tests showed that for VFR (Visual Flight Rules) pilots, AWARE provided faster and more effective weather evaluation. In a subsequent formal usability test for IFR (Instrument Flight Rules) pilots, all users finished the AWARE tests faster than the parallel DUAT tests, and all subjects graded AWARE higher for effectiveness, efficiency, and usability. The decision analysis basis of AWARE differentiates it from other aviation safety programs, providing analysis of context-sensitive data in a personalized graphical format to aid pilots/dispatchers in their complex flight requirements.

Busquets, Anthony M. (Technical Monitor); Ruokangas, Corinne Clinton; Kelly, Wallace E., III

2005-01-01

326

Application of Physiological Self-Regulation and Adaptive Task Allocation Techniques for Controlling Operator Hazardous States of Awareness  

NASA Technical Reports Server (NTRS)

Prinzel, Hadley, Freeman, and Mikulka found that adaptive task allocation significantly enhanced performance only when used at the endpoints of the task workload continuum (i.e., very low or high workload), but that the technique degraded performance if invoked during other levels of task demand. These researchers suggested that other techniques should be used in conjunction with adaptive automation to help minimize the onset of hazardous states of awareness (HSA) and keep the operator 'in-the-loop.' The paper reports on such a technique that uses psychophysiological self-regulation to modulate the level of task engagement. Eighteen participants were assigned to three groups (self-regulation, false feedback, and control) and performed a compensatory tracking task that was cycled between three levels of task difficulty on the basis of the electroencephalogram (EEG) record. Those participants who had received self-regulation training performed significantly better and reported lower NASA-TLX scores than participants in the false feedback and control groups. Furthermore, the false feedback and control groups had significantly more task allocations resulting in return-to-manual performance decrements and higher EEG difference scores. Theoretical and practical implications of these results for adaptive automation are discussed.

Prinzel, Lawrence J., III; Pope, Alan T.; Freeman, Frederick G.

2001-01-01

327

Communicating eco-efficiency in industrial contexts: a framework for understanding the (lack) of success and applicability of eco-design  

Microsoft Academic Search

The connection between environmental and economic aspects is essential for proper eco-design applicability in industrial contexts and examples are shown in this paper. The aim of this review is to show that in practice this combination is done, in various ways, depending on the context. The review tries to cover the overall product value chain. The paper concludes that relevant

O. Pascual; C. Boks; A. Stevels

2003-01-01

328

Knowledge-based public health situation awareness  

NASA Astrophysics Data System (ADS)

There have been numerous efforts to create comprehensive databases from multiple sources to monitor the dynamics of public health and most specifically to detect the potential threats of bioterrorism before widespread dissemination. But there are not many evidences for the assertion that these systems are timely and dependable, or can reliably identify man made from natural incident. One must evaluate the value of so called 'syndromic surveillance systems' along with the costs involved in design, development, implementation and maintenance of such systems and the costs involved in investigation of the inevitable false alarms1. In this article we will introduce a new perspective to the problem domain with a shift in paradigm from 'surveillance' toward 'awareness'. As we conceptualize a rather different approach to tackle the problem, we will introduce a different methodology in application of information science, computer science, cognitive science and human-computer interaction concepts in design and development of so called 'public health situation awareness systems'. We will share some of our design and implementation concepts for the prototype system that is under development in the Center for Biosecurity and Public Health Informatics Research, in the University of Texas Health Science Center at Houston. The system is based on a knowledgebase containing ontologies with different layers of abstraction, from multiple domains, that provide the context for information integration, knowledge discovery, interactive data mining, information visualization, information sharing and communications. The modular design of the knowledgebase and its knowledge representation formalism enables incremental evolution of the system from a partial system to a comprehensive knowledgebase of 'public health situation awareness' as it acquires new knowledge through interactions with domain experts or automatic discovery of new knowledge.

Mirhaji, Parsa; Zhang, Jiajie; Srinivasan, Arunkumar; Richesson, Rachel L.; Smith, Jack W.

2004-09-01

329

Context parchments  

Microsoft Academic Search

The paper introduces a notion of context parchment. The notion is illustrated by several examples. It is shown, that every logical context parchment generates a context institution. Morphisms between context parchments are introduced, thus yielding a category of context parchments. The use of universal constructions in the category of context parchments, for modular construction of logics is discussed and illustrated

Wies?aw Paw?owski

330

G-Nut software library and its applications within context of EPOS  

NASA Astrophysics Data System (ADS)

The contribution will present new G-Nut software library aimed for the development of targeted end-user GNSS applications in various geoscientific fields - geodesy, seismology, meteorology, climatology end others in future. The G-Nut core library has been developed since 2011 in Geodetic Observatory Pecný. Its status and more detais can be found at www.pecny.cz. The library is written in C++ applying the object oriented approach aiming for a flexible source code implementation, easy maintenance and future extension. Currently, the library supports the Precise Point Positioning GNSS processing technique as a core highly efficient and autonomous method suitable for most accurate post-processing tasks as well as real-time applications. Specific end-user applications are being developed - the tool for GNSS data converting, concatenating, editing and quality checking, the application for tropospheric parameter estimation in (near) real-time and post-processing and the application for the precise position estimation in static and kinematic mode. Although the programs are still under consolidation for a first release, the latest results demonstrate the capability and relevance for supporting specific applications in different areas. Plans for further enhancements are discussed together with potential contributions to the EPOS or similar other inter-disciplinary projects.

Dousa, Jan; Vaclavovic, Pavel; Gyori, Gabriel; Kostelecky, Jan

2013-04-01

331

Comprehensive Context Recognizer Based on Multimodal Sensors in a Smartphone  

PubMed Central

Recent developments in smartphones have increased the processing capabilities and equipped these devices with a number of built-in multimodal sensors, including accelerometers, gyroscopes, GPS interfaces, Wi-Fi access, and proximity sensors. Despite the fact that numerous studies have investigated the development of user-context aware applications using smartphones, these applications are currently only able to recognize simple contexts using a single type of sensor. Therefore, in this work, we introduce a comprehensive approach for context aware applications that utilizes the multimodal sensors in smartphones. The proposed system is not only able to recognize different kinds of contexts with high accuracy, but it is also able to optimize the power consumption since power-hungry sensors can be activated or deactivated at appropriate times. Additionally, the system is able to recognize activities wherever the smartphone is on a human's body, even when the user is using the phone to make a phone call, manipulate applications, play games, or listen to music. Furthermore, we also present a novel feature selection algorithm for the accelerometer classification module. The proposed feature selection algorithm helps select good features and eliminates bad features, thereby improving the overall accuracy of the accelerometer classifier. Experimental results show that the proposed system can classify eight activities with an accuracy of 92.43%.

Han, Manhyung; Vinh, La The; Lee, Young-Koo; Lee, Sungyoung

2012-01-01

332

Is Recess an Achievement Context? An Application of Expectancy-Value Theory to Playground Choices  

ERIC Educational Resources Information Center

This study investigated the application of an expectancy-value model to children's activity choices on the playground at recess. The purpose was to test the prediction that expectancies for success and subjective task values are related to decisions to engage in specific recess activities such as climbing, playing soccer, or skipping rope.…

Spencer-Cavaliere, Nancy; Dunn, Janice Causgrove; Watkinson, E. Jane

2009-01-01

333

Sustainability decision-making frameworks and the application of systems thinking: an urban context  

Microsoft Academic Search

The literature cites the importance of systems thinking to operationalise sustainability. However, the application of a systems approach for sustainable development is not widely applied. The failure to take advantage of systems thinking results in decision-making processes being less effective than they could be. As the complexity of decision-making for built environment professionals becomes more challenging with increasing pressures, such

Kathryn M. Davidson; Jackie Venning

2011-01-01

334

The Estimation of Cortical Activity for Brain-Computer Interface: Applications in a Domotic Context  

PubMed Central

In order to analyze whether the use of the cortical activity, estimated from noninvasive EEG recordings, could be useful to detect mental states related to the imagination of limb movements, we estimate cortical activity from high-resolution EEG recordings in a group of healthy subjects by using realistic head models. Such cortical activity was estimated in region of interest associated with the subject's Brodmann areas by using a depth-weighted minimum norm technique. Results showed that the use of the cortical-estimated activity instead of the unprocessed EEG improves the recognition of the mental states associated to the limb movement imagination in the group of normal subjects. The BCI methodology presented here has been used in a group of disabled patients in order to give them a suitable control of several electronic devices disposed in a three-room environment devoted to the neurorehabilitation. Four of six patients were able to control several electronic devices in this domotic context with the BCI system.

Babiloni, F.; Cincotti, F.; Marciani, M.; Salinari, S.; Astolfi, L.; Tocci, A.; Aloise, F.; Fallani, F. De Vico; Bufalari, S.; Mattia, D.

2007-01-01

335

The estimation of cortical activity for brain-computer interface: applications in a domotic context.  

PubMed

In order to analyze whether the use of the cortical activity, estimated from noninvasive EEG recordings, could be useful to detect mental states related to the imagination of limb movements, we estimate cortical activity from high-resolution EEG recordings in a group of healthy subjects by using realistic head models. Such cortical activity was estimated in region of interest associated with the subject's Brodmann areas by using a depth-weighted minimum norm technique. Results showed that the use of the cortical-estimated activity instead of the unprocessed EEG improves the recognition of the mental states associated to the limb movement imagination in the group of normal subjects. The BCI methodology presented here has been used in a group of disabled patients in order to give them a suitable control of several electronic devices disposed in a three-room environment devoted to the neurorehabilitation. Four of six patients were able to control several electronic devices in this domotic context with the BCI system. PMID:18350134

Babiloni, F; Cincotti, F; Marciani, M; Salinari, S; Astolfi, L; Tocci, A; Aloise, F; De Vico Fallani, F; Bufalari, S; Mattia, D

2007-01-01

336

Advanced Interaction in Context  

Microsoft Academic Search

Mobile information appliances are increasingly used in numerous different situations and locations, setting new requirements to their interaction methods. When the user{\\\\textquoteright}s situation, place or activity changes, the functionality of the device should adapt to these changes. In this work we propose a layered real-time architecture for this kind of context-aware adaptation based on redundant collections of low-level sensors. Two

Albrecht Schmidt; Kofi Asante Aidoo; Antti Takaluoma; Urpo Tuomela; Kristof Van Laerhoven; Walter Van de Velde

1999-01-01

337

IEEE 802.15.3 intra-piconet route optimization with application awareness and multi-rate carriers  

Microsoft Academic Search

In IEEE 802.15.3 wireless personal area networks, all devices (DEVs) within a piconet communicate in a peer-to-peer manner. In this paper, we enhance the performance of intra-piconet communications by taking advantage of the multi-rate physical layer (PHY) and diverse application traffic characteristics. As higher PHY data rates are typically achievable over shorter transmission distances, a low rate link between two

Zhanping Yin; Victor C. M. Leung

2006-01-01

338

Moodle 2.0 Web Services Layer and Its New Application Contexts  

NASA Astrophysics Data System (ADS)

Owing to the intrinsic relation among actual education and new technologies, it results essential the fact to found the new ways to satisfy both sides of the modern eLearning platforms, the needs of students and tutors and the enough technologies to support it. Consequently, the possibility to interconnect the LMS with other external applications to enrich and strengthen the comprehension of learning process is one of the principal paths to follow.

Conde, Miguel Ángel; Aguilar, Diego Alonso Gómez; Del Pozo de Dios, Alberto; Peñalvo, Francisco José García

339

NEWS: Science awareness  

NASA Astrophysics Data System (ADS)

The Particle Physics and Astronomy Research Council's award scheme in the public understanding of science and technology for 1999 is currently under way and the first closing date has already passed. The second date for the receipt of applications for the Small Awards scheme is 10 October (open to anyone), with awards ranging from £250 up to the maximum of £10 000 per project. The funding can be used for materials, salaries, travel and subsistence, and there may be a slight preference towards projects involving young people and schools. Subject areas must be those relevant to PPARC: particle physics; space, ionospheric, solar and planetary science; astronomy, astrophysics and cosmology. Application documentation can be obtained from PUST Office Room 2232, PPARC, Polaris House, North Star Avenue, Swindon SN2 1SZ (tel: 01793 442002, e-mail: pr_pus@pparc.ac.uk and website http://www.pparc.ac.uk/role/notes.html). And whilst on this same theme, the deadline is fast approaching for a new Institute of Physics scheme intended to recognize work on increasing awareness of the exciting nature of physics and its relevance and impact on everyday life. The Public Awareness of Physics awards will recognize individuals and groups who have demonstrated excellence, inspiration and innovation in bringing physics to the public and assist in raising the status of this kind of activity. There are no restrictions on eligibility and nominees do not have to be members of the Institute of Physics, physicists or physics trained. Nominations may be made by anyone, with up to five awards to be given annually. Further details, nomination guidelines and forms are available from Katie Perry, Public Affairs Department, Institute of Physics, 76 Portland Place, London W1N 3DN (tel: 0171 470 4800, e-mail: katie.perry@iop.org).

1999-05-01

340

Application of carbon dioxide (CO{sub 2}) for controlling subsurface fire area: Indian context  

SciTech Connect

In bord and pillar method of mining, the panels are sealed off after depillaring. Depending upon the site specific condition, 40 to 45 % coal are left in depillared panel as stook, loose coal left in goaf, hard coal on floor and roof of the panel. The left out coals in goaf area start oxidation, and this leads to spontaneous heating in side sealed off area. For assessment of fire in underground coal mines, thermo-compositional monitoring plays an important role. This paper presents scientific relevance and selective criteria for use of inert gas for control of subsurface fire. Finally the paper discusses spontaneous heating problem in sealed off area and application of inertisation technology by using CO, to prevent and control sealed off fire at Haripur Colliery, Kenda Area, ECL, India.

Mohalik, N.K.; Singh, V.K.; Singh, R.V.K. [Central Institute of Mining & Fuel Research, Dhanbad (India)

2009-07-15

341

The Problem-Solving Approach to program evaluation: Development and application in a mathematics context  

NASA Astrophysics Data System (ADS)

This study developed and piloted the Problem-Solving Approach to program evaluation, which involves the direct application of the problem-solving process as a metaphor for program evaluation. A rationale for a mathematics-specific approach is presented, and relevant literature in both program evaluation and mathematics education is reviewed. The Problem-Solving Approach was piloted with a high-school level integrated course in mathematics and science that used graphing calculators and data collection devices with the goal of helping students to gain better understanding of relationships between mathematics and science. Twelve students participated in the course, which was co-taught by a mathematics teacher and a science teacher. Data collection for the evaluation included observations, a pre- and posttest, student questionnaires, student interviews, teacher interviews, principal interviews, and a focus group that involved both students and their teachers. Results of the evaluation of the course are presented as an evaluation report. Students showed improvement in their understandings of mathematics-science relationships, but also showed growth in terms of self-confidence, independence, and various social factors that were not expected outcomes. The teachers experienced a unique form of professional development by learning and relearning concepts in each other's respective fields and by gaining insights into each other's teaching strengths. Both the results of the evaluation and the evaluation process itself are discussed in light of the proposed problem-solving approach. The use of problem solving and of specific problem-solving strategies was found to be prevalent among the students and the teachers, as well as in the activities of the evaluator. Specific problem-solving strategies are highlighted for their potential value in program evaluation situations. The resulting Problem-Solving Approach, revised through the pilot application, employs problem solving as a recursive process at three interconnected levels: the evaluation level (where the evaluator is problem solver), the program level (where teachers or other program administrators are problem solvers), and the mathematical task level (where students are problem solvers).

Costner, Kelly Mitchell

342

Conversational Awareness in Text-Based Computer Mediated Communication  

NASA Astrophysics Data System (ADS)

Text-based computer-mediated communication (TxtCMC) supports an instant exchange of messages among geographically distributed people. TxtCMC, such as Instant Messaging and chat tools, has increasingly become widespread and popular at home and at work. Supporting conversational awareness is an important aspect of TxtCMC. Conversational awareness provides a user with information about the presence and activity of others, and therefore helps to establish a context for the user’s own activity. Unfortunately, current interface design of TxtCMC provides inadequate support for conversational awareness, especially in support for awareness of turn-taking, conversational context and multiple concurrent conversations. This research aims to address these three issues by (1) conducting an empirical study to identify the user need for conversational awareness and (2) designing an interface to support this type of awareness. This chapter presents two innovative prototypes, namely Relaxed Instant Messenger (RIM) and Conversational Dock (ConDock). RIM integrates a sequential interface with an adaptive threaded interface to support awareness of turn-taking and conversational context. ConDock adopts a focus + context visualisation technique to support awareness of multiple conversations. The evaluations of the two prototypes show that they meet their design objectives and were found useful in enhancing group communication.

Tran, Minh Hong; Yang, Yun; Raikundalia, Gitesh K.

343

Cultural Awareness through Medical Student and Refugee Patient Encounters  

Microsoft Academic Search

Purpose: This paper presents findings from a qualitative investigation of cultural awareness that medical students developed in the context of providing medical care to refugees. Our evaluation question was: What kinds of cultural awareness and communication lessons do medical students derive from clinical encounters with refugee patients? Methods: Thirty-eight semi-structured interviews were conducted to debrief a sample of 27 medical

Kim Griswold; Luis E Zayas; Joan B Kernan; Christine M Wagner

2007-01-01

344

Detecting submerged objects: the application of side scan sonar to forensic contexts.  

PubMed

Forensic personnel must deal with numerous challenges when searching for submerged objects. While traditional water search methods have generally involved using dive teams, remotely operated vehicles (ROVs), and water scent dogs for cases involving submerged objects and bodies, law enforcement is increasingly integrating multiple methods that include geophysical technologies. There are numerous advantages for integrating geophysical technologies, such as side scan sonar and ground penetrating radar (GPR), with more traditional search methods. Overall, these methods decrease the time involved searching, in addition to increasing area searched. However, as with other search methods, there are advantages and disadvantages when using each method. For example, in instances with excessive aquatic vegetation or irregular bottom terrain, it may not be possible to discern a submersed body with side scan sonar. As a result, forensic personnel will have the highest rate of success during searches for submerged objects when integrating multiple search methods, including deploying multiple geophysical technologies. The goal of this paper is to discuss the methodology of various search methods that are employed for submerged objects and how these various methods can be integrated as part of a comprehensive protocol for water searches depending upon the type of underwater terrain. In addition, two successful case studies involving the search and recovery of a submerged human body using side scan sonar are presented to illustrate the successful application of integrating a geophysical technology with divers when searching for a submerged object. PMID:23890654

Schultz, John J; Healy, Carrie A; Parker, Kenneth; Lowers, Bim

2013-09-10

345

Achieving Optimal Privacy in Trust-Aware Social Recommender Systems  

NASA Astrophysics Data System (ADS)

Collaborative filtering (CF) recommenders are subject to numerous shortcomings such as centralized processing, vulnerability to shilling attacks, and most important of all privacy. To overcome these obstacles, researchers proposed for utilization of interpersonal trust between users, to alleviate many of these crucial shortcomings. Till now, attention has been mainly paid to strong points about trust-aware recommenders such as alleviating profile sparsity or calculation cost efficiency, while least attention has been paid on investigating the notion of privacy surrounding the disclosure of individual ratings and most importantly protection of trust computation across social networks forming the backbone of these systems. To contribute to addressing problem of privacy in trust-aware recommenders, within this paper, first we introduce a framework for enabling privacy-preserving trust-aware recommendation generation. While trust mechanism aims at elevating recommender's accuracy, to preserve privacy, accuracy of the system needs to be decreased. Since within this context, privacy and accuracy are conflicting goals we show that a Pareto set can be found as an optimal setting for both privacy-preserving and trust-enabling mechanisms. We show that this Pareto set, when used as the configuration for measuring the accuracy of base collaborative filtering engine, yields an optimized tradeoff between conflicting goals of privacy and accuracy. We prove this concept along with applicability of our framework by experimenting with accuracy and privacy factors, and we show through experiment how such optimal set can be inferred.

Dokoohaki, Nima; Kaleli, Cihan; Polat, Huseyin; Matskin, Mihhail

346

Quantized visual awareness  

PubMed Central

The proposed model holds that, at its most fundamental level, visual awareness is quantized. That is to say that visual awareness arises as individual bits of awareness through the action of neural circuits with hundreds to thousands of neurons in at least the human striate cortex. Circuits with specific topologies will reproducibly result in visual awareness that correspond to basic aspects of vision like color, motion, and depth. These quanta of awareness (qualia) are produced by the feedforward sweep that occurs through the geniculocortical pathway but are not integrated into a conscious experience until recurrent processing from centers like V4 or V5 select the appropriate qualia being produced in V1 to create a percept. The model proposed here has the potential to shift the focus of the search for visual awareness to the level of microcircuits and these likely exist across the kingdom Animalia. Thus establishing qualia as the fundamental nature of visual awareness will not only provide a deeper understanding of awareness, but also allow for a more quantitative understanding of the evolution of visual awareness throughout the animal kingdom.

Escobar, W. A.

2013-01-01

347

Promoting general metacognitive awareness  

Microsoft Academic Search

I describe two aspects of metacognition, knowledge of cognition and regulation of cognition, and how they are related to domain-specific knowledge and cognitive abilities. I argue that metacognitive knowledge is multidimensional, domain-general in nature, and teach- able. Four instructional strategies are described for promoting the construction and acquisition of metacognitive awareness. These include promoting general awareness, improving self- knowledge and

GREGORY SCHRAW

1998-01-01

348

Knowledge Construction Awareness.  

ERIC Educational Resources Information Center

Presents information about Knowledge Construction Awareness (KCA) and the design of a software tool that allows users to capture information about group work and evaluate how this kind of awareness affects the collaborative work process in computer-mediated interactions. Discusses exploratory study of 10 groups who used software. Contains 29…

Collazos, Cesar A.; Guerrero, Luis A.; Pino, Jose A.

2003-01-01

349

Multisensory constraints on awareness.  

PubMed

Given that multiple senses are often stimulated at the same time, perceptual awareness is most likely to take place in multisensory situations. However, theories of awareness are based on studies and models established for a single sense (mostly vision). Here, we consider the methodological and theoretical challenges raised by taking a multisensory perspective on perceptual awareness. First, we consider how well tasks designed to study unisensory awareness perform when used in multisensory settings, stressing that studies using binocular rivalry, bistable figure perception, continuous flash suppression, the attentional blink, repetition blindness and backward masking can demonstrate multisensory influences on unisensory awareness, but fall short of tackling multisensory awareness directly. Studies interested in the latter phenomenon rely on a method of subjective contrast and can, at best, delineate conditions under which individuals report experiencing a multisensory object or two unisensory objects. As there is not a perfect match between these conditions and those in which multisensory integration and binding occur, the link between awareness and binding advocated for visual information processing needs to be revised for multisensory cases. These challenges point at the need to question the very idea of multisensory awareness. PMID:24639579

Deroy, Ophelia; Chen, Yi-Chuan; Spence, Charles

2014-05-01

350

Brain Awareness Week  

NSDL National Science Digital Library

Brain Awareness Week (BAW) is an inspirational global campaign that unites those who share an interest in elevating public awareness about the progress and benefits of brain and nervous system research. BAW focuses international attention on the field of neuroscience and offers opportunities for teachers and students to engage in fun educational activities.

Sf (Society for Neuroscience)

2005-05-01

351

[Awareness - clinical relevance].  

PubMed

Awareness is a rare but typical complication during general anesthesia, with a reported incidence of 0.1- 0.2% to 1% (high risk patients) in adults and probably much higher in children with 0.2 -1.2%. Awareness is defined as consciousness during general anesthesia with explicit (conscious) recall of memories.Wakefulness during anesthesia can meet DSM-IV criteria of trauma. Significant long-term psychological sequelae (e.g. post-traumatic stress disorder) may occur.Recommendations of the German Society of Anesthesiologists have been developed according to the ASA Task Force for intraoperative awareness and brain function monitoring.The article focuses on risk factors and sequelae of awareness, explains the options for detection of intraoperative wakefulness and postoperative memories and makes recommendations for prevention and handling of awareness. PMID:23364826

Pilge, Stefanie; Schneider, Gerhard

2013-01-01

352

Phonological Awareness Is Child's Play!  

ERIC Educational Resources Information Center

Noticing and being able to manipulate the sounds of spoken language-phonological awareness-is highly related to later success in reading and spelling. The authors define and explain the levels of phonological awareness-syllable awareness, onset-rime awareness, phoneme awareness. They give teachers step-by-step instructions for implementing a…

Yopp, Hallie Kay; Yopp, Helen

2009-01-01

353

Interpretation and applicability of microRNA data to the context of Alzheimer's and age-related diseases  

PubMed Central

Generated by the ribonuclease III Dicer, microRNAs (miRNAs) are predicted to regulate up to 90% of the genes in humans, suggesting that they may control every cellular processes in all cells and tissues of the human body! Likely to play a central role in health and disease, a dysfunctional miRNA-based regulation of gene expression may represent the main etiologic factor underlying age-related diseases affecting major organs, such as the brain. Here, we discuss some of the limitations associated to the interpretation and applicability of miRNA data, based on our recent study on the etiology of Alzheimer's disease (AD). Using transiently transfected murine neuronal N2a cells in culture, in parallel to a mouse model of AD, we were able to demonstrate a role for two miRNAs (miR-298 and miR-328) in the regulation of ß-amyloid (Aß) precursor protein (APP)-converting enzyme (BACE) messenger RNA (mRNA) translation, thereby providing key insights into the molecular basis underlying BACE deregulation in AD. However, whether miRNA data can be extrapolated and transposed to the human context of age-related diseases, such as AD, not only requires caution, but also warrants several considerations.

Provost, Patrick

2010-01-01

354

Experience with Using the Sensewear BMS Sensor System in the Context of a Health and Wellbeing Application  

PubMed Central

An assessment of a sensor designed for monitoring energy expenditure, activity, and sleep was conducted in the context of a research project which develops a weight management application. The overall goal of this project is to affect sustainable behavioural change with respect to diet and exercise in order to improve health and wellbeing. This paper reports results of a pretrial in which three volunteers wore the sensor for a total of 11 days. The aim was to gain experience with the sensor and determine if it would be suitable for incorporation into the ICT system developed by the project to be trialled later on a larger population. In this paper we focus mainly on activity monitoring and user experience. Data and results including visualizations and reports are presented and discussed. User experience proved positive in most respects. Exercise levels and sleep patterns correspond to user logs relating to exercise sessions and sleep patterns. Issues raised relate to accuracy, one source of possible interference, the desirability of enhancing the system with real-time data transmission, and analysis to enable real-time feedback. It is argued that automatic activity classification is needed to properly analyse and interpret physical activity data captured by accelerometry.

Jones, Val; Bults, Richard; de Wijk, Rene; Widya, Ing; Batista, Ricardo; Hermens, Hermie

2011-01-01

355

Promoting awareness in distributed mobile organizations: a cultural and technological challenge  

Microsoft Academic Search

Increasing mutual awareness among distributed collaborators has been a focus of the CSCW community for over a decade. The majority of these studies, however, have been on availability and contextual awareness among coworkers in distributed but fixed contexts. This paper intends to contribute to our understanding of the awareness needs of distributed, mobile organizations by describing the inadvertent erosion of

Julie Rennecker

2005-01-01

356

Crisis management during anaesthesia: awareness and anaesthesia  

PubMed Central

Background: Patient awareness during general anaesthesia has considerable potential for severe emotional distress in the patient as well as professional, personal, and financial consequences for the anaesthetist. Objectives: To examine the role of a previously described core algorithm "COVER ABCD–A SWIFT CHECK", supplemented by a specific sub-algorithm for awareness, in the detection and management of potential awareness in association with general anaesthesia. Method: The potential performance of this structured approach for each of the relevant incidents among the first 4000 reported to the Australian Incident Monitoring Study (AIMS) was compared with the actual management as reported by the anaesthetists involved. Results: Of the first 4000 reports received by AIMS, there were 21 incidents of patient awareness under general anaesthesia, and 20 of patients being paralysed while awake from "syringe swaps" before induction of anaesthesia. In 12 of the 21 reports there was an obvious cause, most commonly a low concentration of volatile agent (8 of 12 reports). The AIMS "core" crisis management algorithm would have detected the cause of awareness in all of these cases. In nine reports the course of anaesthesia appeared unremarkable, and in these the algorithm would not have been expected to detect or prevent awareness. Volatile agent monitoring would have prevented some cases of awareness, as would bispectral index electroencephalographic (BIS) monitoring. The role of BIS monitoring is still contentious, but it should be considered for high risk patients. Conclusion: Awareness should be minimised by thorough checking of equipment, particularly vaporisers, and frequent application of a structured scanning routine. Awareness may occur during crisis management and aftermath protocols should include patient follow up to detect and manage awareness when it occurs.

Osborne, G; Bacon, A; Runciman, W; Helps, S

2005-01-01

357

An Illustrative Case Study of the Heuristic Practices of a High-Performing Research Department: Toward Building a Model Applicable in the Context of Large Urban Districts  

ERIC Educational Resources Information Center

This case study provides an illustration of the heuristic practices of a high-performing research department, which in turn, will help build much needed models applicable in the context of large urban districts. This case study examines the accountability, planning, evaluation, testing, and research functions of a research department in a large…

Munoz, Marco A.; Rodosky, Robert J.

2011-01-01

358

Effects of Discourse Context on the Intelligibility of Synthesized Speech for Young Adult and Older Adult Listeners: Applications for AAC.  

ERIC Educational Resources Information Center

This study investigated whether discourse context affected the intelligibility of synthesized sentences for young adult and older adult listeners. Findings indicated a significant facilitating effect of context wherein previous words and sentences are related to later sentences for both listener groups. Results have direct implications for…

Drager, Kathryn D. R.; Reichle, Joe E.

2001-01-01

359

Raising Cultural Awareness in the English Language Classroom  

ERIC Educational Resources Information Center

This article discusses how teachers can incorporate cultural knowledge into English language classes, exploring elements of culture, intercultural phenomena, and high-context and low-context cultures. Activities offered by the author to raise cultural awareness include web quests, role plays, cultural observations, and culture journals.

Frank, Jerrold

2013-01-01

360

Community Eldercare Awareness Campaigns.  

National Technical Information Service (NTIS)

The Alzheimer's Association tested innovative strategies for building eldercare coalitions through community awareness activities. The project educated leaders of non-aging organizations and community opinion leaders about the impact of unmet home and com...

1994-01-01

361

Population Education. Awareness Activities.  

ERIC Educational Resources Information Center

Described are awareness activities that deal with human population growth, resources, and the environment. Activities include simulations, mathematical exercises, and discussions of the topic. Specific examples of what individuals can do to help are listed. (KR)

Brouse, Deborah E.

1990-01-01

362

Child Care Aware  

MedlinePLUS

... learn about high-quality child care. Welcome to Child Care Aware® E-Mail Print Share Tweet Military Child ... 2246 Call TTY#: 1-866-278-9428 Free Child Care Search Please enter your zip code. Your local ...

363

Perception without awareness  

Microsoft Academic Search

Two experiments were carried out in order to re-examine the phenomenon of subliminal perception, c.q. perception without awareness. Subliminal perception, c.q. perception without awareness, was defined in terms of the subjects' ability to respond differentially to the content of stimuli like words or digits, without having consciously identified their meaning.\\u000a\\u000aIn the first experiment, subliminal visual perception was examined in

K. M. Bánréti-Fuchs

1967-01-01

364

Image processing technology for enhanced situational awareness  

NASA Astrophysics Data System (ADS)

This paper discusses the integration of a number of advanced image and data processing technologies in support of the development of next-generation Situational Awareness systems for counter-terrorism and crime fighting applications. In particular, the paper discusses the European Union Framework 7 'SAMURAI' project, which is investigating novel approaches to interactive Situational Awareness using cooperative networks of heterogeneous imaging sensors. Specific focus is given to novel Data Fusion aspects of the research which aim to improve system performance through intelligently fusing both image data and non image data sources, resolving human-machine conflicts, and refining the Situational Awareness picture. In addition, the paper highlights some recent advances in supporting image processing technologies. Finally, future trends in image-based Situational Awareness are identified, such as Post-Event Analysis (also known as 'Back-Tracking'), and the associated technical challenges are discussed.

Page, S. F.; Smith, M. I.; Hickman, D.

2009-09-01

365

Application of Information Technology: A Comparative Evaluation of Full-text, Concept-based, and Context-sensitive Search  

Microsoft Academic Search

ObjectivesStudy comparatively (1) concept-based search, using documents pre-indexed by a conceptual hierarchy; (2) context-sensitive search, using structured, labeled documents; and (3) traditional full-text search. Hypotheses were: (1) more contexts lead to better retrieval accuracy; and (2) adding concept-based search to the other searches would improve upon their baseline performances.DesignUse our Vaidurya architecture, for search and retrieval evaluation, of structured documents

Robert Moskovitch; Susana B. Martins; Eytan Behiri; Aviram Weiss; Yuval Shahar

2007-01-01

366

Using Visual Analytics to Maintain Situation Awareness in Astrophysics  

SciTech Connect

We present a novel collaborative visual analytics application for cognitively overloaded users in the astrophysics domain. The system was developed for scientists needing to analyze heterogeneous, complex data under time pressure, and then make predictions and time-critical decisions rapidly and correctly under a constant influx of changing data. The Sunfall Data Taking system utilizes severalnovel visualization and analysis techniques to enable a team of geographically distributed domain specialists to effectively and remotely maneuver a custom-built instrument under challenging operational conditions. Sunfall Data Taking has been in use for over eighteen months by a major international astrophysics collaboration (the largest data volume supernova search currently in operation), and has substantially improved the operational efficiency of its users. We describe the system design process by an interdisciplinary team, the system architecture, and the results of an informal usability evaluation of the production system by domain experts in the context of Endsley?s three levels of situation awareness.

Aragon, Cecilia R.; Poon, Sarah S.; Aldering, Gregory S.; Thomas, Rollin C.; Quimby, Robert

2008-07-01

367

Network-Based Learning and Assessment Applications on the Semantic Web  

ERIC Educational Resources Information Center

Today's Web applications are already "aware" of the network of computers and data on the Internet, in the sense that they perceive, remember, and represent knowledge external to themselves. However, Web applications are generally not able to respond to the meaning and context of the information in their memories. As a result, most applications are…

Gibson, David

2005-01-01

368

Context parchments  

Microsoft Academic Search

. The paper introduces a notion of context parchment. Thenotion is illustrated by several examples. It is shown, that every logicalcontext parchment generates a context institution. Morphisms betweencontext parchments are introduced, thus yielding a category of contextparchments. The use of universal constructions in the category of contextparchments, for modular construction of logics is discussed and illustratedby examples.1 IntroductionInstitutions, were introduced

Wieslaw Pawlowski

1997-01-01

369

Context Clues  

NSDL National Science Digital Library

The first way to figure out the meaning of a word is from its context. The context is the other words and sentences that are around the new word. When you figure out the meaning of a word from context, you are making a guess about what the word means. To do this, you use the hints and clues of the other words and sentences. You won't always be right, but many times you will be. You might not be able to guess the exact meaning of a word, but you may be close enough to get the meaning of the sentence it is in. Part I: Watch the following video Prof. Craig ~ Context Clues Video Part II: Take the Context Clues Pre-Test. Record your answers on worksheet. Click on the star symbol to correct your test. Although it says to print your test, PLEASE DON'T! Context Clues Pre-Test Part III: Complete the Context Clues Activity. There are three parts to this activity. You must read and answer each slide. ...

Devitry, Mrs.

2011-04-11

370

Context Clues  

NSDL National Science Digital Library

The first way to figure out the meaning of a word is from its context. The context is the other words and sentences that are around the new word. When you figure out the meaning of a word from context, you are making a guess about what the word means. To do this, you use the hints and clues of the other words and sentences. You won't always be right, but many times you will be. You might not be able to guess the exact meaning of a word, but you may be close enough to get the meaning of the sentence it is in. Part I: Watch the following video Prof. Craig ~ Context Clues Video Part II: Take the Context Clues Pre-Test. Record your answers on worksheet. Click on the star symbol to correct your test. Although it says to print your test, PLEASE DON'T! Context Clues Pre-Test Part III: Complete the Context Clues Activity. There are three parts to this activity. You must read and answer each slide. ...

Branscomb, Mrs.

2011-12-07

371

Teaching Personal Awareness  

PubMed Central

Educators rarely consider the attitudes that determine whether a learner will use the clinical skills we teach. Nevertheless, many learners and practitioners exhibit negative attitudes that can impede the use of patient-centered skills, leading to an isolated focus upon disease and impairing the provider-patient relationship. The problem is compounded because these attitudes often are incompletely recognized by learners and therefore are difficult to change without help. We present a research-based method for teaching personal awareness of unrecognized and often harmful attitudes. We propose that primary care clinicians without mental health training can follow this method to teach students, residents, faculty, and practitioners. Such teachers/mentors need to possess an abiding interest in the personal dimension, patience with a slowly evolving process of awareness, and the ability to establish strong, ongoing relationships with learners. Personal awareness teaching may occur during instruction in basic interviewing skills but works best if systematically incorporated throughout training.

Smith, Robert C; Dwamena, Francesca C; Fortin, Auguste H

2005-01-01

372

Urban Rivers Awareness  

NSDL National Science Digital Library

The Academy of Natural Sciences (Philadelphia) hosts this page on Urban Rivers Awareness. Offering information both general (e.g., the importance of water and watersheds) and specific (e.g., Manatwany Creek dam study), the site introduces viewers to urban river issues via an ecological study on the removal of a dam in Pennsylvania. Site content is directed towards raising awareness of urban rivers and is educational in flavor. Also at the site is a series of links to other Academy projects, external resources, and related articles.

2001-01-01

373

Lessons learnt from the participatory design of a mobile care data application in a resource-restricted context  

Microsoft Academic Search

This case describes the participatory process of developing a mobile solution for care givers in a resource-restricted context. The experiences of the designers and developers during this process are shared. mHealth solutions are not yet widely adopted for care giving services and the lessons learnt could be valuable to others designing similar solutions. The literacy level of the care givers

Retha De la Harpe

2012-01-01

374

Language Rights versus Speakers' Rights: On the Applicability of Western Language Rights Approaches in Eastern European Contexts  

ERIC Educational Resources Information Center

The main purpose of the present paper is to draw attention to contexts where two conceptions of linguistic rights--the rights of languages and the rights of speakers--come into conflict. To illustrate such conflict, I will examine justifications of language laws adopted in two post-Soviet countries, Latvia and Ukraine. I will begin with an…

Pavlenko, Aneta

2011-01-01

375

Agent-Based Context Consistency Management in Smart Space Environments  

NASA Astrophysics Data System (ADS)

Context-aware systems in smart space environments must be aware of the context of their surroundings and adapt to changes in highly dynamic environments. Data management of contextual information is different from traditional approaches because the contextual information is dynamic, transient, and fallible in nature. Consequently, the capability to detect context inconsistency and maintain consistent contextual information are two key issues for context management. We propose an ontology-based model for representing, deducing, and managing consistent contextual information. In addition, we use ontology reasoning to detect and resolve context inconsistency problems, which will be described in a Smart Alarm Clock scenario.

Jih, Wan-Rong; Hsu, Jane Yung-Jen; Chang, Han-Wen

376

Energy Aware Software  

Microsoft Academic Search

The concept of energy aware software is introduced. A simple energy model for software is presented that separates the switching and leakage components and predicts its total energy consumption with less than 5% error for a set of benchmark programs. The experiments have been performed on the StrongARM SA-1100 microprocessor. A mathematical model for the total leakage current has also

Amit Sinha; Anantha P. Chandrakasan

2000-01-01

377

Career Awareness: Kindergarten.  

ERIC Educational Resources Information Center

A broad educational background is necessary to meet ever changing occupational fields, and career education is an approach incorporating career information within the regular school subjects. For the elementary level, career awareness is the main thrust in this ongoing program to integrate students and community. Self-development and understanding…

Boise City Independent School District, ID.

378

Career Awareness: Grade 4.  

ERIC Educational Resources Information Center

A broad educational background is necessary to meet ever changing occupational fields, and career education is an approach incorporating career information within the regular school curriculum. For the elementary level, career awareness is the main thrust in this program to integrate students and community. The introduction contains the format for…

Boise City Independent School District, ID.

379

International Agri-Awareness.  

ERIC Educational Resources Information Center

Technological progress in communication and transportation within the past 30 years has made many areas of the world accessible, as well as interdependent. Failure to understand the concept of interdependency greatly diminishes the potential of all nations and each citizen to appreciate this world community. This agricultural awareness program…

Indiana State Dept. of Education, Indianapolis.

380

Awareness in Chinese Medicine  

Microsoft Academic Search

Awareness - awakening -- is the single most important quality of life to healing and growth in all therapeutics, religion, and philosophy, since the beginning of recorded history. It is central to the changes we must contemplate in terms of healing for both patient and practitioner. Chinese medicine has a great deal to offer through its diagnostic and treatment modalities

Leon Hammer

381

Career Awareness: Grade 5.  

ERIC Educational Resources Information Center

A broad educational background is necessary to meet ever changing occupational fields, and career education is an approach incorporating career information within regular school curriculum. For the elementary level, career awareness is the main thrust in this program to integrate students and community. The format for grade five, performance…

Boise City Independent School District, ID.

382

Security Awareness Course Outline  

NSDL National Science Digital Library

The Center for Systems Security and Information Assurance (CSSIA) provides this course outline for a security awareness course. It includes information about the course and also lists end competencies expected, major concepts and evaluation methods. The document may be downloaded in Microsoft Word Doc file format.

2013-07-26

383

Information Security Awareness  

Microsoft Academic Search

Drop in for an Information Security awareness session during the lunch break. In this session, Chandra Gudena will discuss topics such as ways in which you should handle private information securely, effective practices to follow while surfing on the internet, protecting your identity, and how to choose a strong password that you can remember. Also, learn how to spot phishing

Chandragupta Gudena

2008-01-01

384

Security Awareness Syllabus  

NSDL National Science Digital Library

The Center for Systems Security and Information Assurance (CSSIA) provides this syllabus for a security awareness course. The document is a sample one, which could be adapted to suit any course on this topic. It includes information about the course and also lists course goals, goal end competencies, classroom policies and grading policies. The document may be downloaded in Microsoft Word Doc file format.

2013-07-26

385

Implementing Maritime Domain Awareness.  

National Technical Information Service (NTIS)

As an attempt to gain understanding of everything in the global maritime environment that can impact the security of the United States, the Maritime Domain Awareness initiative is one of the most ambitious projects ever undertaken by the U.S. government. ...

R. B. Watts

2006-01-01

386

Career Awareness: Grade 2.  

ERIC Educational Resources Information Center

A broad educational background is necessary to meet ever changing occupational fields, and career education is an approach incorporating career information within the regular school curriculum. For the elementary level, career awareness is the main thrust in this program to integrate students and community. The format for grade two, performance…

Boise City Independent School District, ID.

387

Environmental Awareness Reading List.  

National Technical Information Service (NTIS)

The Environmental Awareness Reading list (E.A.R.L.), a semi-monthly listing of current publications dealing with environmental matters, is compiled by the Office of Library Services of the U. S. Department of the Interior to meet the needs of the National...

1971-01-01

388

Ontology-based framework for context-aware mobile learning  

Microsoft Academic Search

Mobile learning is becoming an important research topic as people are increasingly connected through smart phones that combine telephony, computing, messaging, and multimedia. The process of designing, communicating and presenting learning resources for mobile learners poses new challenges to the research community. This is mainly due to the limited bandwidth of wireless networks, limited resource available on mobile devices, and

Jawad Berri; Rachid Benlamri; Yacine Atif

2006-01-01

389

A Context-Aware Architecture for Mobile Knowledge Management  

Microsoft Academic Search

In many professional activities (e.g., medical diagnosis, constructio n, or sales), the ability to retrieve and store knowledge in a mobile situation is crucial. This need, together with the pro gress of mobile devices, has led to the emergence of mobile knowledge management. The mobile situation imposes specific constraints on traditional knowledge management activities (e.g., knowledge retrieval or presentation). Therefore,

Olaf Thiele; Hartwig Knapp; Martin Schader; Nicolas Prat

2006-01-01

390

AGILE: adaptive indexing for context-aware information filters  

Microsoft Academic Search

Information filtering has become a key technology for modern information systems. The goal of an information filter is to route messages to the right recipients (possibly none) according to declarative rules called profiles. In order to deal with high volumes of messages, several index structures have been proposed in the past. The challenge addressed in this paper is to carry

Jens-Peter Dittrich; Peter M. Fischer; Donald Kossmann

2005-01-01

391

Modular context-aware access control for medical sensor networks  

Microsoft Academic Search

Medical sensor networks allow for pervasive health monitoring of users in hospitals, at home, or on the way. The privacy and confidentiality of medical data need to be guaranteed at any moment to make sure that unauthorized parties cannot retrieve confidential information. This is a great challenge due to two main reasons. First, wireless sensors are resource-constrained devices that limit

Oscar García Morchon; Klaus Wehrle

2010-01-01

392

Context-Aware Analysis Approach to Enhance Industrial Smart Metering  

Microsoft Academic Search

\\u000a With consideration of the increasing relevance of energy consumption and rising energy costs, strategies to improve energy\\u000a efficiency in manufacturing environments have to be developed. As the energy consumption results from the temporal accumulation\\u000a of individual power demands of subordinate devices, energy metering enables to capture these demands and display the dynamic\\u000a behaviour. A fundamental precondition for the identification and

C. Herrmann; S.-H. Suh; G. Bogdanski; A. Zein; J.-M. Cha; J. Um; S. Jeong; A. Guzman

393

Dynamic Bayesian Networks for Context-Aware Fall Risk Assessment  

PubMed Central

Fall incidents among the elderly often occur in the home and can cause serious injuries affecting their independent living. This paper presents an approach where data from wearable sensors integrated in a smart home environment is combined using a dynamic Bayesian network. The smart home environment provides contextual data, obtained from environmental sensors, and contributes to assessing a fall risk probability. The evaluation of the developed system is performed through simulation. Each time step is represented by a single user activity and interacts with a fall sensors located on a mobile device. A posterior probability is calculated for each recognized activity or contextual information. The output of the system provides a total risk assessment of falling given a response from the fall sensor.

Koshmak, Gregory; Linden, Maria; Loutfi, Amy

2014-01-01

394

Technique for Dynamic Composition of Content and Context-Sensitive Mobile Applications: Adaptive Mobile Browers as a Case Study.  

National Technical Information Service (NTIS)

The mobile environment brings new challenges for applications. Mobile usage is spontaneous and applications should be fast to install, start, and use in mobile devices and wireless networks. The wireless network connections offer typically less bandwidth ...

M. Palviainen

2007-01-01

395

Recognizing User Context Using Mobile Handsets with Acceleration Sensors  

Microsoft Academic Search

User context recognition is one of the important technologies for realizing context aware services. Conventional multi sensor based approach has advantages in that it can generate variety of contexts with less computation resources by using many different sensors. However, such systems tend to be complex and cumbersome and, thus, do not fit in well with mobile environment. In this sense,

Yoshihiro Kawahara; Hisashi Kurasawa; Hiroyuki Morikawa

2007-01-01

396

Automatic Generation of Security-Aware GUI Models  

Microsoft Academic Search

In typical software applications, users access application data using GUI widgets. There is an important, but little explored, link be- tween visualization and security: when the application data is protected by an access-control policy, the application GUI should be aware of and respect this policy. For example, a widget should not give users options to execute actions on the application

Michael Schlapfer; Marina Egea; David Basin; Manuel Clavel

397

Nonconscious perception, conscious awareness and attention?  

PubMed Central

Because it is unclear how a nonconscious stimulus is cognitively processed, there is uncertainty concerning variables that modulate the processing. In this context recent findings of a set of neuroimaging experiments are important. These findings suggest that conscious and nonconscious stimuli activate same areas of the brain during performance of a similar task. Further, different areas are activated when a task is performed with or without awareness of processing. It appears that the neural network involved in cognitive processing depends on the awareness of processing rather than awareness of perception. Since conscious and nonconscious cognitive processing use separate neural networks, each processing is modulated by different variables. Attention modulates most conscious cognitive processing and most, but not all, nonconscious processing is attention dependent. Nonconscious tasks that require attentional resources, with or without conscious awareness, are processed using the attention dependent system. Further, because attention dependent and attention independent tasks are processed by separate neural networks, the cognitive processing and modulating variables can be understood better if cognitive tasks are defined as attention dependent or attention independent, rather than conscious or nonconscious.

Badgaiyan, Rajendra D.

2014-01-01

398

Coordinated Computer-Supported Collaborative Learning: Awareness and Awareness Tools  

ERIC Educational Resources Information Center

Traditionally, research on awareness during online collaboration focused on topics such as the effects of spatial information about group members' activities on the collaborative process. When the concept of awareness was introduced to computer-supported collaborative learning, this focus shifted to cognitive group awareness (e.g., information…

Janssen, Jeroen; Bodemer, Daniel

2013-01-01

399

Considering Context  

NSDL National Science Digital Library

Children's descriptions of commonplace objects and events of life are often limited because they do not provide adequate information about the context of their observation. Encouraging primary and early intermediate students to consider the context of an observation can further encourage them to generate questions about what they are observing and why it appears that way. This, in turn, pushes students to "use critical and logical thinking and consider alternative explanations. In this way, students can actively develop their understanding of science by combining scientific knowledge with reasoning and thinking skills" (NRC 1996, p. 2).

Leland, Christine; Schuster, Dwight

2008-02-01

400

Constructivist Approach to Information Security Awareness in the Middle East  

Microsoft Academic Search

This paper studies the application of an approach to enhance information security awareness amongst employees within middle-eastern companies, in effort to improve information security. We aim at surveying the current attitudes and awareness levels of 116 employees in 22 companies towards information security. Two companies, from the group of companies, opted to implement a sample of the new approach which

Mohammed Boujettif; Yongge Wang

2010-01-01

401

Quality-Aware Video  

Microsoft Academic Search

Recent development in network visual communications has empha- sized on the need of objective, reliable and easy-to-use video quality assessment (VQA) systems. This paper introduces a novel idea of quality-aware video (QAV), in which extracted features about the original video sequence are invisibly embedded into the same video data. When such a QAV sequence is distributed over an error-prone network,

Basavaraj Hiremath; Qiang Li; Zhou Wang

2007-01-01

402

Situation Awareness and Workload Measures for SAFOR  

NASA Technical Reports Server (NTRS)

The present research was conducted in support of the NASA Safe All-Weather Flight Operations for Rotorcraft (SAFOR) program. The purpose of the work was to investigate the utility of two measurement tools developed by the British Defense Evaluation Research Agency. These tools were a subjective workload assessment scale, the DRA Workload Scale (DRAWS), and a situation awareness measurement tool in which the crews self-evaluation of performance is compared against actual performance. These two measurement tools were evaluated in the context of a test of an innovative approach to alerting the crew by way of a helmet mounted display. The DRAWS was found to be usable, but it offered no advantages over extant scales, and it had only limited resolution. The performance self-evaluation metric of situation awareness was found to be highly effective.

DeMaio, Joe; Hart, Sandra G.; Allen, Ed (Technical Monitor)

1999-01-01

403

Physician communication in the operating room: expanding application of face-negotiation theory to the health communication context.  

PubMed

Communication variables that are associated with face-negotiation theory were examined in a sample of operating-room physicians. A survey was administered to anesthesiologists and surgeons at a teaching hospital in the southwestern United States to measure three variables commonly associated with face-negotiation theory: conflict-management style, face concern, and self-construal. The survey instrument that was administered to physicians includes items that measured these three variables in previous face-negotiation research with slight modification of item wording for relevance in the medical setting. The physician data were analyzed using confirmatory factor analysis, Pearson's correlations, and t-tests. Results of this initial investigation showed that variables associated with face-negotiation theory were evident in the sample physician population. In addition, the correlations were similar among variables in the medical sample as those found in previous face-negotiation research. Finally, t-tests suggest variance between anesthesiologists and surgeons on specific communication variables. These findings suggest three implications that warrant further investigation with expanded sample size: (1) An intercultural communication theory and instrument can be utilized for health communication research; (2) as applied in a medical context, face-negotiation theory can be expanded beyond traditional intercultural communication boundaries; and (3) theoretically based communication structures applied in a medical context could help explain physician miscommunication in the operating room to assist future design of communication training programs for operating-room physicians. PMID:21899403

Kirschbaum, Kristin

2012-01-01

404

Lean Six Sigma in a service context : A multi-factor application approach in the telecommunications industry  

Microsoft Academic Search

Purpose – The purpose of this paper is to investigate issues related to the application of Lean Six Sigma (L6?) in a service industry. By adopting a case-study approach this paper analytically explores the critical success factors that affect L6? implementation. Design\\/methodology\\/approach – The study adopts a qualitative approach attempting to explore the nature of L6? application in a service

Alexandros G. Psychogios; Jane Atanasovski; Loukas K. Tsironis

2012-01-01

405

A distributed reasoning engine ecosystem for semantic context-management in smart environments.  

PubMed

To be able to react adequately a smart environment must be aware of the context and its changes. Modeling the context allows applications to better understand it and to adapt to its changes. In order to do this an appropriate formal representation method is needed. Ontologies have proven themselves to be one of the best tools to do it. Semantic inference provides a powerful framework to reason over the context data. But there are some problems with this approach. The inference over semantic context information can be cumbersome when working with a large amount of data. This situation has become more common in modern smart environments where there are a lot sensors and devices available. In order to tackle this problem we have developed a mechanism to distribute the context reasoning problem into smaller parts in order to reduce the inference time. In this paper we describe a distributed peer-to-peer agent architecture of context consumers and context providers. We explain how this inference sharing process works, partitioning the context information according to the interests of the agents, location and a certainty factor. We also discuss the system architecture, analyzing the negotiation process between the agents. Finally we compare the distributed reasoning with the centralized one, analyzing in which situations is more suitable each approach. PMID:23112596

Almeida, Aitor; López-de-Ipiña, Diego

2012-01-01

406

Image processing for flight crew enhanced situation awareness  

NASA Technical Reports Server (NTRS)

This presentation describes the image processing work that is being performed for the Enhanced Situational Awareness System (ESAS) application. Specifically, the presented work supports the Enhanced Vision System (EVS) component of ESAS.

Roberts, Barry

1993-01-01

407

Wilderness Awareness School  

NSDL National Science Digital Library

The Wilderness Awareness School is located in Washington, but offers courses in other regions as well. Here, visitors can sign up for the School's newsletter, The FoxDen, and the free NatureSkills Journal. Users may also try the School's free seven-day course, NatureWalk. The site contains sections for both adults and children/young adults. The "Nature Skills" section of the site provides detailed information and visual materials on such things as primitive skills (cordage, starting fire, moccasin making), wild food, plants and trees, birds, animal tracking and much more. This is a great resource for anyone interested in learning more about the study of nature.

2008-02-22

408

Awareness and teamwork in computer-supported collaborations  

Microsoft Academic Search

A contemporary approach to describing and theorizing about joint human endeavor is to posit 'knowledge in common' as a basis for awareness and coordination. Recent analysis has identified weaknesses in this approach even as it is typically employed in relatively simple task contexts. We suggest that in realistically complex circumstances, people share activities and not merely concepts. We describe a

John M. Carroll; Mary Beth Rosson; Gregorio Convertino; Craig H. Ganoe

2006-01-01

409

Information security awareness in higher education: An exploratory study  

Microsoft Academic Search

The research explores factors that affect information security awareness of staff, including information systems decision makers, in higher education within the context of a developing country, namely the UAE. An interpretive case-study approach is employed using multiple data gathering methods. The research reveals that factors such as conscientiousness, cultural assumptions and beliefs, and social conditions affect university staff behaviour and

Yacine Rezgui; Adam Marks

2008-01-01

410

Phonological Awareness in Kindergarten: A Field Study in Luxembourgish Schools  

ERIC Educational Resources Information Center

The purpose of the present study was to assess the effectiveness of a phonological awareness training program in the specific context of the Luxembourgish educational system. The intervention was run by the kindergarten teachers in their classes with minimal external supervision. Forty-one classes of the area around Luxembourg City participated in…

Bode, Sylvie; Content, Alain

2011-01-01

411

Field-Based Coordination for Pervasive Computing Applications  

Microsoft Academic Search

Emerging pervasive computing technologies such as sensor networks and RFID tags can be embedded in our everyday environment to digitally store and elaborate a variety of information. By having appli- cation agents access in a dynamic and wireless way such distributed in- formation, it is possible to enforce a notable degree of context-awareness in applications, and increase the capabilities of

Marco Mamei; Franco Zambonelli

2007-01-01

412

Terminal context in context-sensitive grammars.  

NASA Technical Reports Server (NTRS)

Investigation of the conditions whereunder context-sensitive grammars generate context-free languages. The obtained results indicate that, if every noncontext-free rewriting rule of a context-sensitive grammar has as left context a string of terminal symbols and the left context is at least as long as the right context, then the language generated is context-free. Likewise, if every noncontext-free rewriting rule of a context-sensitive grammar has strings of terminal symbols as left and right contexts, then the language generated is also context-free.

Book, R. V.

1972-01-01

413

Unifying Theory for Content Self-Awareness in Distributed Multimedia Publishing.  

National Technical Information Service (NTIS)

A formal abstract theory of indexing for multimedia objects leads to the concept of machine awareness, presented in the context of constructive database models and drawing on the latest results using category theory. Geometric logic can provide a universa...

M. Heather B. N. Rossiter

1997-01-01

414

Exploring the Use of Multidimensional Analysis of Learner Language to Promote Register Awareness  

ERIC Educational Resources Information Center

This paper discusses the use of multidimensional analysis (MA) of learner language to promote the awareness of linguistic concepts such as register and variation. Our research explores the introduction of learner register awareness by using MA of learner language in the field of university Foreign Language Teaching (FLT). In this context, a group…

Aguado-Jimenez, Pilar; Perez-Paredes, Pascual; Sanchez, Purificacion

2012-01-01

415

Asleep but aware?  

PubMed

Despite sleep-induced drastic decrease of self-awareness, human sleep allows some cognitive processing of external stimuli. Here we report the fortuitous observation in a patient who, while being recorded with intra-cerebral electrodes, was able, during paradoxical sleep, to reproduce a motor behaviour previously performed at wake to consciously indicate her perception of nociceptive stimulation. Noxious stimuli induced behavioural responses only if they reached the cortex during periods when mid-frontal networks (pre-SMA, pre-motor cortex) were pre-activated. Sensory responses in the opercular cortex and insula were identical whether the noxious stimulus was to evoke or not a motor behaviour; conversely, the responses in mid-anterior cingulate were specifically enhanced for stimuli yielding motor responses. Neuronal networks implicated in the voluntary preparation of movements may be reactivated during paradoxical sleep, but only if behavioural-relevant stimuli reach the cortex during specific periods of "motor awareness". These local activation appeared without any global sleep stage change. This observation opens the way to further studies on the currently unknown capacity of the sleeping brain to interact meaningfully with its environment. PMID:24632088

Mazza, Stéphanie; Perchet, Caroline; Frot, Maud; Michael, George A; Magnin, Michel; Garcia-Larrea, Luis; Bastuji, Hélène

2014-06-01

416

Phase-Error Measurement and Compensation in PLL Frequency Synthesizers for FMCW Sensors—I: Context and Application  

Microsoft Academic Search

The synthesis of linear frequency sweeps or chirps is required, among others, in frequency-modulated continuous-wave radar systems for object position estimation. Low phase and frequency errors in sweeps with high bandwidth are a prerequisite for good accuracy and resolution, but, in certain applications where high measurement rates are desired, the additional demand for short sweep cycles has to be met.

Markus Pichler; Andreas Stelzer; Peter Gulden; Claus Seisenberger; Martin Vossiek

2007-01-01

417

Applicability of Family Therapy for Chinese Children and Adolescents Suffering from Anorexia Nervosa in a Chinese Context: A Preliminary Study  

Microsoft Academic Search

This article presents the results of a preliminary study that assesses the applicability of family therapy for Chinese adolescents suffering from anorexia nervosa in Hong Kong, an area that had never been studied in the past. A total of 27 Chinese emaciated children and adolescents received family therapy and conventional psychiatric treatment from the university-based family treatment center, in collaboration

Joyce L. C. Ma; Kelly Lai

2009-01-01

418

Characterizing Genes with Distinct Methylation Patterns in the Context of Protein-Protein Interaction Network: Application to Human Brain Tissues  

PubMed Central

Background DNA methylation is an essential epigenetic mechanism involved in transcriptional control. However, how genes with different methylation patterns are assembled in the protein-protein interaction network (PPIN) remains a mystery. Results In the present study, we systematically dissected the characterization of genes with different methylation patterns in the PPIN. A negative association was detected between the methylation levels in the brain tissues and topological centralities. By focusing on two classes of genes with considerably different methylation levels in the brain tissues, namely the low methylated genes (LMGs) and high methylated genes (HMGs), we found that their organizing principles in the PPIN are distinct. The LMGs tend to be the center of the PPIN, and attacking them causes a more deleterious effect on the network integrity. Furthermore, the LMGs express their functions in a modular pattern and substantial differences in functions are observed between the two types of genes. The LMGs are enriched in the basic biological functions, such as binding activity and regulation of transcription. More importantly, cancer genes, especially recessive cancer genes, essential genes, and aging-related genes were all found more often in the LMGs. Additionally, our analysis presented that the intra-classes communications are enhanced, but inter-classes communications are repressed. Finally, a functional complementation was revealed between methylation and miRNA regulation in the human genome. Conclusions We have elucidated the assembling principles of genes with different methylation levels in the context of the PPIN, providing key insights into the complex epigenetic regulation mechanisms.

Zhao, Zheng; Li, Shengli; Bai, Jing; Wu, Aiwei; Jiang, Chunjie; Wang, Yuan; Su, Bin; Li, Xia

2013-01-01

419

Malaria awareness month launched.  

PubMed

On April 29, 1997, in Suhum, Ghana, at the beginning of Malaria Awareness Month, Minister of Health Dr. Eunice Brookman-Amissah announced a 6-month accelerated malaria control program in 30 districts where the disease is most endemic; the program, which is sponsored by the World Health Organization (WHO), will continue until September 1997. The program is being launched because of the low impact of control efforts over the previous 4 years. Under the new program, health personnel, including 250 physicians in private and government employment, will be retrained regarding the proper management and treatment of malaria. In order to curtail the improper treatment of the disease, some chemical sellers and day care assistants will also be trained in the management and control of malaria. The next stage of the program will include measures to protect people from mosquito bites and to clear areas of mosquito breeding places. PMID:12294206

420

Testing Privacy Awareness  

NASA Astrophysics Data System (ADS)

In web-based business processes the disclosure of personal data by the user is an essential part and mandatory for the processes. Privacy policies help to inform the user about his/her rights and to protect the user’s privacy. In this paper we present a test to empirically measure how the user’s privacy awareness changes by presenting specific elements of the privacy policy in close proximity to the required data items. We compare an experimental group using an enhanced interface to a control group using a conventional interface regarding their capability to recall the agreed privacy-related facts. A concrete online survey has been performed. The major results are presented.

Bergmann, Mike

421

Dark-Skies Awareness  

NASA Astrophysics Data System (ADS)

The arc of the Milky Way seen from a truly dark location is part of our planet's natural heritage. More than one fifth of the world population, two thirds of the United States population and one half of the European Union population have already lost naked eye visibility of the Milky Way. This loss, caused by light pollution, is a serious and growing issue that impacts astronomical research, the economy, ecology, energy conservation, human health, public safety and our shared ability to see the night sky. For this reason, "Dark Skies” is a cornerstone project of the International Year of Astronomy. Its goal is to raise public awareness of the impact of artificial lighting on local environments by getting people worldwide involved in a variety of programs that: 1. Teach about dark skies using new technology (e.g., an activity-based planetarium show on DVD, podcasting, social networking on Facebook and MySpace, a Second Life presence) 2. Provide thematic events on light pollution at star parties and observatory open houses (Dark Skies Discovery Sites, Nights in the (National) Parks, Sidewalk Astronomy) 3. Organize events in the arts (e.g., a photography contest) 4. Involve citizen-scientists in naked-eye and digital-meter star hunting programs (e.g., GLOBE at Night, "How Many Stars?", the Great World Wide Star Count and the radio frequency interference equivalent: "Quiet Skies") and 5. Raise awareness about the link between light pollution and public health, economic issues, ecological consequences, energy conservation, safety and security, and astronomy (e.g., The Starlight Initiative, World Night in Defense of Starlight, International Dark Sky Week, International Dark-Sky Communities, Earth Hour, The Great Switch Out, a traveling exhibit, downloadable posters and brochures). The presentation will provide an update, describe how people can become involved and take a look ahead at the program's sustainability. For more information, visit www.darkskiesawareness.org.

Walker, Constance E.

2009-05-01

422

Building Capacity to Integrate NASA Earth Science into Water Resources Management Applications in the Context of a Changing Climate  

NASA Astrophysics Data System (ADS)

The NASA Applied Sciences program provides technical capacity building activities to enable decision-makers to integrate NASA Earth Science into environmental management activities. This includes workshops tailored to end-user needs by working directly with agencies to 1) identify environmental management activities that could benefit from NASA Earth Science and 2) conducting workshops that teach the NASA products and decision-support tools best suited to the identified application area. Building on a successful 3-year effort on air pollution monitoring for environmental applications, the project has expanded into water resources. Climate Change has dramatically increased demand for observational and predictive data in support of decision making activities related to water supply and demand. However, a gap remains between NASA products and applied research and the entities who stand to benefit from their utilization. To fill this gap, the project has developed short courses on 1) impacts of climate change on water resources 2) hands-on exercises on access and interpretation of NASA imagery relevant to water resources management via the use of decision-support web tools and software and 3) case studies on the application of NASA products in the field. The program is currently focused on two areas 1) precipitation products over the central and southern U.S. that help communities and agencies improve flooding forecasts and 2) snow and snow/water equivalent products over the western U.S and Latin America that can provide end-users with improved stream flow prediction in Spring within a framework of decreasing snow availability.

Prados, A. I.; Mehta, A. V.

2011-12-01

423

From Cultural Awareness to Intercultural Awareness: Culture in ELT  

ERIC Educational Resources Information Center

Cultural awareness (CA) has emerged over the last few decades as a significant part of conceptualizing the cultural dimension to language teaching. That is, L2 users need to understand L2 communication as a cultural process and to be aware of their own culturally based communicative behaviour and that of others. However, while CA has provided a…

Baker, Will

2012-01-01

424

Cross-context Web browser communication with unified communication models and context types  

Microsoft Academic Search

Modern Web applications are developed and executed as a set of interacting browser contexts, such as windows, frames and background workers. Cross-context communication systems have been rapidly evolving to support this interaction, but are still behind modern Web application demands. In this paper we present Pmrpc, a cross-context communication system with several novel properties important for future Web applications. First,

Ivan Zuzak; Marko Ivankovic; Ivan Budiselic

2011-01-01

425

Model-driven Composition of Context-aware Web Services Using ContextUML and Aspects  

Microsoft Academic Search

Service Oriented Architectures (SOAs) are constantly gaining ground for the provision of business to business as well as user-centric services, mainly in the form of Web Ser- vices technology. SOAs enable service providers to design and deploy new,composite service offerings out of existing component services. In order to match end-user expecta- tions with respect to personalization and ease of use,

George N. Prezerakos; Nikolaos D. Tselikas; Giovanni Cortese

2007-01-01

426

Double ABCX Model of Stress and Adaptation in the Context of Families That Care for Children With a Tracheostomy at Home: Application of a Theory.  

PubMed

Theories provide a roadmap for scientific inquiry, help organize knowledge, and establish the foundation for knowledge development. The Double ABCX Model of Family Stress and Adaptation is a middle-range theory developed in social science and widely used by researchers of various disciplines. This model encompasses the major variables of interest in this study, including stress, coping, duration of tracheostomy, and quality-of-life, and forms an excellent framework for this specific research study. The purpose of this article was to discuss relationships between various individual and environmental factors that can impact health and well-being in families. In addition, this article illustrates how the application of the model helps nurses and healthcare providers understand the significance of the family context on positive well-being and promote optimal caring practices to achieve a balance in the midst of illness and suffering. PMID:24777041

Joseph, Rachel A; Goodfellow, Linda M; Simko, Lynn C

2014-06-01

427

Phonological Awareness and Reading Acquisition.  

ERIC Educational Resources Information Center

It was proposed that the young child's awareness of the phonology of language would influence early reading success. Results revealed a strong relationship between the first grader's reading performance and two measures of his/her phonological awareness, invented spelling and phoneme segmentation abilities. (Author/RD)

Zifcak, Michael

1981-01-01

428

[Sensory Awareness through Outdoor Education].  

ERIC Educational Resources Information Center

Designed for instruction of emotionally handicapped children and youth, these seven articles present concepts and activities relative to sensory awareness and outdoor education. The first article presents definitions, concepts, detailed methodology, and over 50 activities designed to create awareness of man's five senses. Utilizing the art of…

Farquhar, Carin; And Others

429

Phonemic Awareness in Hyperlexic Children.  

ERIC Educational Resources Information Center

States that children with hyperlexia who learn to read spontaneously before age five are impaired in reading and listening comprehension but have word recognition skills well above their measured cognitive and linguistic abilities. Administers phonemic awareness measures to three early readers. Finds that all three children's phonemic awareness

Sparks, Richard L.

1995-01-01

430

Promoting security awareness and commitment  

Microsoft Academic Search

Sees security awareness promotion as part of the overall organization – its culture, philosophy and vision. Presents a case study of a major Australian organization. Traces the history of computer security, how commitment was built and the security awareness initiatives which were rolled out.

Phil Spurling

1995-01-01

431

Phonological Awareness and Musical Aptitude.  

ERIC Educational Resources Information Center

Examines the relationship between phonological awareness and musical aptitude in pre-school Turkish and American children. Finds that children in the high musical aptitude group did much better on all tasks than those in the low musical aptitude group, showing that success in manipulating linguistic sounds was related to awareness of distinct…

Peynircioglu, Zehra F.; Durgunoglu, Aydyn Y.; Oney-Kusefoglu, Banu

2002-01-01

432

Implicit memory and test awareness  

Microsoft Academic Search

In three experiments we examined whether normal subjects can perform an implicit test without becoming aware that the test items were previously encountered in the study phase of the experiment. Experiment 1 assessed single word priming with the stem completion task, and subjects who reported awareness\\/unawareness that the test items were previously encoded in the study task showed equivalent priming.

Jeffrey S. Bowers; Daniel L. Schacter

1990-01-01

433

Improving Awareness in Mobile CSCW  

Microsoft Academic Search

The diffusion of mobile devices in the working landscape is promoting collaboration across time and space. Following through this development, we investigate opportunities for improving awareness in mobile environments with a view to enable collaboration under power constraints and transitory network disconnections. We elaborate in particular on synchronous CSCW and expose with it significant details of group awareness, while we

Constantinos Papadopoulos

2006-01-01

434

The application of strategic environmental assessment in a non-mandatory context: Regional transport planning in New Zealand  

SciTech Connect

There is no legal mandate for strategic environmental assessment (SEA) in New Zealand. However, a requirement to consider environmental and sustainability issues is a key feature of many statutes, including that relating to regional transport planning. Given this, the research sought to determine whether SEA could be used to improve the incorporation of environmental and sustainability aspects into the regional transport planning process in New Zealand. Existing practice was evaluated, examining what factors currently limiting the consideration of environmental and sustainability issues and to what extent elements of SEA are currently being used. The research culminated in the development of a conceptual model where SEA elements could be incorporated into the existing framework to promote improved consideration of environmental and sustainability issues. The results provide some reassurance about the value of SEA even where its application is not legally mandated. However, it also highlighted some ongoing issues around the integration of SEA in existing frameworks and around the scope of SEA as a decision-aiding tool. -- Highlights: • The research examined whether SEA can provide benefits even where it is not mandated. • The research examined the extent to which SEA elements are currently being used. • A conceptual model was developed to incorporate necessary SEA elements into an existing framework.

McGimpsey, Paul, E-mail: paul.mcgimpsey@urs.com [URS, St. George's House, 5 St. George's Road, London SW19 4DR (United Kingdom)] [URS, St. George's House, 5 St. George's Road, London SW19 4DR (United Kingdom); Morgan, Richard K., E-mail: rkm@geography.otago.ac.nz [Department of Geography, University of Otago, PO Box 56, Dunedin 9054 (New Zealand)

2013-11-15

435

Situation Awareness and Workload in Aviation  

Microsoft Academic Search

A pilot faces special challenges imposed by the need to control a multivariate lagged system in a heterogeneous multitask environment. The time lags between critical variables require prediction in an uncertain world. The interrelated concepts of situation awareness and workload are central to aviation psychology. Three components of situation awareness are spatial awareness, system awareness, and task awareness. Each of

Christopher D. Wickens

2002-01-01

436

Awareness Training and the Oral Interpreter.  

ERIC Educational Resources Information Center

Since imaginary awareness--as the core of the oral interpreter's art--must be preceded by both an awareness of internal events and an awareness of external events, awareness training can be the most effective means of helping interpreters develop their art. Two models of the awareness development process, a hierarchy of response levels and a…

Gamble, Teri Kwal; Gamble, Michael W.

437

Awareness of implicit attitudes.  

PubMed

Research on implicit attitudes has raised questions about how well people know their own attitudes. Most research on this question has focused on the correspondence between measures of implicit attitudes and measures of explicit attitudes, with low correspondence interpreted as showing that people have little awareness of their implicit attitudes. We took a different approach and directly asked participants to predict their results on upcoming Implicit Association Test (IAT) measures of implicit attitudes toward 5 social groups. We found that participants were surprisingly accurate in their predictions. Across 4 studies, predictions were accurate regardless of whether implicit attitudes were described as true attitudes or culturally learned associations (Studies 1 and 2), regardless of whether predictions were made as specific response patterns (Study 1) or as conceptual responses (Studies 2-4), and regardless of how much experience or explanation participants received before making their predictions (Study 4). Study 3 further suggested that participants' predictions reflected unique insight into their own implicit responses, beyond intuitions about how people in general might respond. Prediction accuracy occurred despite generally low correspondence between implicit and explicit measures of attitudes, as found in prior research. Altogether, the research findings cast doubt on the belief that attitudes or evaluations measured by the IAT necessarily reflect unconscious attitudes. (PsycINFO Database Record (c) 2014 APA, all rights reserved). PMID:24294868

Hahn, Adam; Judd, Charles M; Hirsh, Holen K; Blair, Irene V

2014-06-01

438

Media Awareness Network  

NSDL National Science Digital Library

Created in 1996, the Media Awareness Network (MNet) is a Canadian non-profit organization that works on the development of media literacy and digital literacy programs. The basic premise behind MNet is to equip adults with information and tools "to help young people understand how the media work, how the media may affect their lifestyle choices and the extent to which they, as consumers and citizens, are being well informed." First-time visitors to the site will want to start by looking over the "Spotlight" area. Here they will find information about new additions to the site, including their latest newsletter. Moving on, the "For Teachers" area includes lesson plans to help teach young people about body image, movies, music, and other topics depicted in the media. Teachers can also learn about the importance of teaching media literacy, and also search for lessons by grade and subject. In the "For Parents" section, interested parties can read e-tutorials about keeping up with their children's online activities and also look through helpful educational games. The site is rounded out by their blog and a link to information about their special initiatives.

439

Awareness and confabulation.  

PubMed

Objective: A single case study with control and normative data of a 74-year-old retired businessman with amnestic mild cognitive impairment, who had spontaneous confabulations concerning fantastic exploits and magical powers as well as déjà vécu experiences. Methods and Results: His neuropsychological profile showed episodic memory impairment including deficits of recent episodic autobiographical memories and of recognition, but performance was within normal limits on tests assessing source memory for words, the ability to suppress irrelevant items on a continuous recognition memory task, and the detection of stimulus frequency. There were discrete impairments in an ad hoc test measuring his ability to detect and discriminate the source of a range of material including information derived from personal and public events, invented material, and episodes culled from his personal reading. Although his source memory for autobiographical information was normal, he attributed 20% of the invented material and personal readings and 15% of the public events either to his own experience or to that of someone he knew personally or to someone else. Conclusions: This evidence suggests that none of the current theoretical accounts of spontaneous confabulations is sufficiently explanatory. Instead, an argument is developed that both fantastic confabulation and déjà vécu arose from a more fundamental disorder of awareness. (PsycINFO Database Record (c) 2014 APA, all rights reserved). PMID:24188119

Shanks, Michael F; McGeown, William J; Guerrini, Chiara; Venneri, Annalena

2014-05-01

440

Awareness of Implicit Attitudes  

PubMed Central

Research on implicit attitudes has raised questions about how well people know their own attitudes. Most research on this question has focused on the correspondence between measures of implicit attitudes and measures of explicit attitudes, with low correspondence interpreted as showing that people have little awareness of their implicit attitudes. We took a different approach and directly asked participants to predict their results on upcoming IAT measures of implicit attitudes toward five different social groups. We found that participants were surprisingly accurate in their predictions. Across four studies, predictions were accurate regardless of whether implicit attitudes were described as true attitudes or culturally learned associations (Studies 1 and 2), regardless of whether predictions were made as specific response patterns (Study 1) or as conceptual responses (Studies 2–4), and regardless of how much experience or explanation participants received before making their predictions (Study 4). Study 3 further suggested that participants’ predictions reflected unique insight into their own implicit responses, beyond intuitions about how people in general might respond. Prediction accuracy occurred despite generally low correspondence between implicit and explicit measures of attitudes, as found in prior research. All together, the research findings cast doubt on the belief that attitudes or evaluations measured by the IAT necessarily reflect unconscious attitudes.

Hahn, Adam; Judd, Charles M.; Hirsh, Holen K.; Blair, Irene V.

2013-01-01

441

Detecting mutual awareness events.  

PubMed

It is quite common that multiple human observers attend to a single static interest point. This is known as a mutual awareness event (MAWE). A preferred way to monitor these situations is with a camera that captures the human observers while using existing face detection and head pose estimation algorithms. The current work studies the underlying geometric constraints of MAWEs and reformulates them in terms of image measurements. The constraints are then used in a method that 1) detects whether such an interest point does exist, 2) determines where it is located, 3) identifies who was attending to it, and 4) reports where and when each observer was while attending to it. The method is also applied on another interesting event when a single moving human observer fixates on a single static interest point. The method can deal with the general case of an uncalibrated camera in a general environment. This is in contrast to other work on similar problems that inherently assumes a known environment or a calibrated camera. The method was tested on about 75 images from various scenes and robustly detects MAWEs and estimates their related attributes. Most of the images were found by searching the Internet. PMID:22331857

Cohen, Meir; Shimshoni, Ilan; Rivlin, Ehud; Adam, Amit

2012-12-01

442

Global Space Situational Awareness Sensors  

NASA Astrophysics Data System (ADS)

Space situational awareness (SSA) is an essential and integral piece of space operations. Although the U.S. military's Space Surveillance Network (SSN) is currently the single best source of SSA in the world, it does not provide the level of SSA currently needed to support space operations. The lack of geographical sensor distribution and coverage outside of the continental U.S., particularly in the Southern Hemisphere, is a significant limitation of the SSN. There exist a large number of individual sensors across the globe and smaller sensor networks which already provide some level of SSA data to various users, and could also provide data to support the U.S. need for SSA. These sensors are being developed for a variety of missions, including space surveillance, missile warning, missile defense and testing, and scientific applications. This paper summarizes the work currently underway as a joint project by the Secure World Foundation and the Center for International and Security Studies at Maryland (CISSM), University of Maryland, to document these global sensors including networks from Europe, Russia, and China. This information will be collated in a publicly-accessible database which will serve as the foundation for future analyses to assess the utility of these sensors as complements to the existing plans by the U.S. military to acquire new sensors to enhance SSA. It is also part of a broader project which includes development of an open source software suite for SSA analysis.

Weeden, B.; Cefola, P.; Sankaran, J.

2010-09-01

443

Assessing Situation Awareness in Field Training Exercises.  

National Technical Information Service (NTIS)

The Mission Awareness Rating Scale (MARS) and the Situation Awareness Behavioral Rating Scale (SABARS) are metrics designed to assess situation awareness (SA) among infantry soldiers and their leaders. MARS is a subjective self-assessment device and SABAR...

M. D. Matthews S. A. Beal

2002-01-01

444

Precision evaluation of chiral capillary electrophoretic methods in the context of inter-instrumental transfer: Constant current versus constant voltage application.  

PubMed

Capillary electrophoresis (CE) is an electrophoretic separation technique that was rapidly increasing in popularity some years ago and that led to high expectations. Because of their different separation mechanisms, CE and HPLC are alternative and complementary separation techniques. Chiral molecules can be directly separated with CE by simply adding a chiral selector to the running buffer solution, leading to flexible and cheap methods. Major drawbacks of capillary electrophoretic separation methods are, however, the lower precision compared to HLPC methods and a more problematic analytical method transfer. Both above stated disadvantages limit the generalized use of CE methods in the pharmaceutical industry. Multiple solutions have been suggested to improve the precision of CE methods. In this work the application of a constant current during the electrophoretic separation instead of the more commonly used application of a constant voltage was studied on two CE instruments with different cooling mechanisms. This was done in the context of optimizing method transfer conditions. A constant current may reduce the generation of heat in the capillary and the consequentially radial and axial temperature fluctuations that both negatively influence the precision of the peak areas, migration times and resolutions of a CE method. The repeatability and time-different intermediate precision of both electrophoretic separation modes were compared on two different CE instruments after a successful analytical method transfer. The chiral separations of three beta-blockers, propranolol, sotalol and betaxolol, were used as test cases. A constant current led to a general improvement of the repeatability and time-different intermediate precision of the relative Area Under the Curve of all three beta-blockers, while that of the migration times remained rather constant. It also led to more similar electropherograms than the application of a constant voltage. PMID:24680945

De Cock, Bart; Dejaegher, Bieke; Stiens, Johan; Mangelings, Debby; Vander Heyden, Yvan

2014-08-01

445

Career Awareness--A Reality  

ERIC Educational Resources Information Center

The main thrust of the Oklahoma City career awareness component is directed at fifth grade students, with major emphasis centering on a locally- produced, weekly television show. The project has drawn positive teacher and student response. (Author/JB)

De Spain, Tom

1975-01-01

446

Awareness and learning in participatory noise sensing.  

PubMed

The development of ICT infrastructures has facilitated the emergence of new paradigms for looking at society and the environment over the last few years. Participatory environmental sensing, i.e. directly involving citizens in environmental monitoring, is one example, which is hoped to encourage learning and enhance awareness of environmental issues. In this paper, an analysis of the behaviour of individuals involved in noise sensing is presented. Citizens have been involved in noise measuring activities through the WideNoise smartphone application. This application has been designed to record both objective (noise samples) and subjective (opinions, feelings) data. The application has been open to be used freely by anyone and has been widely employed worldwide. In addition, several test cases have been organised in European countries. Based on the information submitted by users, an analysis of emerging awareness and learning is performed. The data show that changes in the way the environment is perceived after repeated usage of the application do appear. Specifically, users learn how to recognise different noise levels they are exposed to. Additionally, the subjective data collected indicate an increased user involvement in time and a categorisation effect between pleasant and less pleasant environments. PMID:24349102

Becker, Martin; Caminiti, Saverio; Fiorella, Donato; Francis, Louise; Gravino, Pietro; Haklay, Mordechai Muki; Hotho, Andreas; Loreto, Vittorio; Mueller, Juergen; Ricchiuti, Ferdinando; Servedio, Vito D P; Sîrbu, Alina; Tria, Francesca

2013-01-01

447

Scalable Processing of Context Information with COSMOS  

Microsoft Academic Search

Ubiquitous computing environments are characterised by a high number of devices which generate vast amounts of context information data. These data are used for exam- ple to adapt applications to changing execution contexts. In this paper, we propose to reorganise the classical functionalities of a context manager to systematically introduce a 3-step cycle of data collection, data interpretation, and situation

Denis Conan; Romain Rouvoy; Lionel Seinturier

2007-01-01

448

How Level of Processing Really Influences Awareness in Recognition Memory  

Microsoft Academic Search

In yes\\/no and two-alternative forced-choice recognition tests, subjects reported one of three states of awareness when selecting each target: remembering, knowing, or guessing. A remember response indicated recollection of the target’s occurrence in the study list. A know response indicated the target was familiar in the experimental context but not recollected. A guess response indicated the target was selected in

JOHN M. GARDINER; ROSALIND I. JAVA; ALAN RICHARDSON-KLAVEHN

1996-01-01

449

Phonological awareness in kindergarten: a field study in Luxembourgish schools  

Microsoft Academic Search

The purpose of the present study was to assess the effectiveness of a phonological awareness training program in the specific\\u000a context of the Luxembourgish educational system. The intervention was run by the kindergarten teachers in their classes with\\u000a minimal external supervision. Forty-one classes of the area around Luxembourg City participated in the study. One hundred\\u000a and fifty children from 20

Sylvie Bodé

2011-01-01

450

Notes on Formalizing Context  

Microsoft Academic Search

These notes discuss formalizing contexts as rst class objects. The basic relation is ist(c; p). It asserts that the proposition p is true in the context c. The most important formulas relate the propositions true in dieren t contexts. Introducing contexts as formal objects will permit ax- iomatizations in limited contexts to be expanded to transcend the original limitations. This

John Mccarthy

1993-01-01

451

Perception without awareness: perspectives from cognitive psychology  

Microsoft Academic Search

Four basic approaches that have been used to demonstrate perception without awareness are described. Each approach reflects one of two types of experimental logic and one of two possible methods for controlling awareness. The experimental logic has been either to demonstrate a dissociation between a measure of perception with awareness and a measure that is sensitive to perception without awareness

Philip M. Merikle; Daniel Smilek; John D. Eastwood

2001-01-01

452

Assessment of radiation awareness training in immersive virtual environments  

NASA Astrophysics Data System (ADS)

The prospect of new nuclear power plant orders in the near future and the graying of the current workforce create a need to train new personnel faster and better. Immersive virtual reality (VR) may offer a solution to the training challenge. VR technology presented in a CAVE Automatic Virtual Environment (CAVE) provides a high-fidelity, one-to-one scale environment where areas of the power plant can be recreated and virtual radiation environments can be simulated, making it possible to safely expose workers to virtual radiation in the context of the actual work environment. The use of virtual reality for training is supported by many educational theories; constructivism and discovery learning, in particular. Educational theory describes the importance of matching the training to the task. Plant access training and radiation worker training, common forms of training in the nuclear industry, rely on computer-based training methods in most cases, which effectively transfer declarative knowledge, but are poor at transferring skills. If an activity were to be added, the training would provide personnel with the opportunity to develop skills and apply their knowledge so they could be more effective when working in the radiation environment. An experiment was developed to test immersive virtual reality's suitability for training radiation awareness. Using a mixed methodology of quantitative and qualitative measures, the subjects' performances before and after training were assessed. First, subjects completed a pre-test to measure their knowledge prior to completing any training. Next they completed unsupervised computer-based training, which consisted of a PowerPoint presentation and a PDF document. After completing a brief orientation activity in the virtual environment, one group of participants received supplemental radiation awareness training in a simulated radiation environment presented in the CAVE, while a second group, the control group, moved directly to the assessment phase of the experiment. The CAVE supplied an activity-based training environment where learners were able to use a virtual survey meter to explore the properties of radiation sources and the effects of time and distance on radiation exposure. Once the training stage had ended, the subjects completed an assessment activity where they were asked to complete four tasks in a simulated radiation environment in the CAVE, which was designed to provide a more authentic assessment than simply testing understanding using a quiz. After the practicum, the subjects completed a post-test. Survey information was also collected to assist the researcher with interpretation of the collected data. Response to the training was measured by completion time, radiation exposure received, successful completion of the four tasks in the practicum, and scores on the post-test. These results were combined to create a radiation awareness score. In addition, observational data was collected as the subjects completed the tasks. The radiation awareness scores of the control group and the group that received supplemental training in the virtual environment were compared. T-tests showed that the effect of the supplemental training was not significant; however, calculation of the effect size showed a small-to-medium effect of the training. The CAVE group received significantly less radiation exposure during the assessment activity, and they completed the activities on an average of one minute faster. These results indicate that the training was effective, primarily for instilling radiation sensitivity. Observational data collected during the assessment supports this conclusion. The training environment provided by the immersive virtual reality recreated a radiation environment where learners could apply knowledge they had been taught by computer-based training. Activity-based training has been shown to be a more effective way to transfer skills because of the similarity between the training environment and the application environment. Virtual reality enables the training environment to l

Whisker, Vaughn E., III

453

Therapeutic effectiveness of a virtual reality game in self-awareness after acquired brain injury.  

PubMed

Self-awareness deficits can manifest as a consequence of acquired brain injury decreasing the motivation and the adherence to the treatment. We present a multitouch system that promotes the role-playing and the self-assessment strategies and challenges the participants in a competitive context. This paper presents an initial clinical trial to study the effectiveness of the virtual system in the rehabilitation of the self-awareness skills.According the evolution of the participants in the Self-Awareness Deficits Interview and in the Spanish Social Skills Scale, the participants improve the perception of their deficits and disabilities. PMID:22954875

Lloréns, Roberto; Navarro, María Dolores; Alcañiz, Mariano; Noé, Enrique

2012-01-01

454

Metadiscourse Awareness and ESAP Comprehension  

ERIC Educational Resources Information Center

The present study examined the effect of explicit instruction about linguistic hedging on the English for Specific Academic Purposes (ESAP) reading comprehension performance of English Language Learning (ELL) university students through an awareness raising task. A reading comprehension test was developed and validated as the pre-test and…

Jalififar, A. R.; Shooshtari, Z. G.

2011-01-01

455

Error awareness and antisaccade performance.  

PubMed

In the antisaccade task, healthy participants often make errors by saccading towards the sudden onset target, despite instructions to saccade to the mirror image location. One interesting and relatively unexplored feature of antisaccade performance is that participants are typically unaware of a large proportion of the errors they make. Across two experiments, we explored the extent to which error awareness is altered by manipulations known to affect antisaccade error rate. In experiment 1, participants performed the antisaccade task under standard instructions, instructions to respond as quickly as possible or instructions to delay responding. Delay instructions significantly reduced antisaccade error rate compared to the other instructions, but this reduction was driven by a decrease only in the number of errors that participants were aware of-the number of errors of which participants were unaware remained constant across instruction condition. In experiment 2, participants performed antisaccades alone, or concurrently with two different distractor tasks-spatial tapping and random number generation task. Both the dual task conditions increased the number of errors of which participants were aware, but again, unaware error rates remained unchanged. These results are discussed in the light of recent models of antisaccade performance and the role of conscious awareness in error correction. PMID:21735247

Taylor, A J G; Hutton, S B

2011-08-01

456

Awareness and Second Language Learning.  

ERIC Educational Resources Information Center

Addresses three major issues related to conscious and unconscious learning: incidental and intentional learning, attention and noticing, and implicit and explicit learning. All three point to the importance of awareness when learning a language. An annotated bibliography is included. (80 references) (LET)

Schmidt, Richard

1992-01-01

457

Glaucoma Awareness Month. Resource Guide.  

National Technical Information Service (NTIS)

Throughout the year, and specifically during the month of January, the sponsoring organizations have made a commitment to increasing awareness of glaucoma and of the importance of receiving a dilated eye exam at least every 2 years for people at higher ri...

1999-01-01

458

Global Space Situational Awareness Sensors  

Microsoft Academic Search

Space situational awareness (SSA) is an essential and integral piece of space operations. Although the U.S. military's Space Surveillance Network (SSN) is currently the single best source of SSA in the world, it does not provide the level of SSA currently needed to support space operations. The lack of geographical sensor distribution and coverage outside of the continental U.S., particularly

B. Weeden; P. Cefola; J. Sankaran

2010-01-01

459

Provenance-Aware Storage Systems  

Microsoft Academic Search

A Provenance-Aware Storage System (PASS) is a storage system that automatically collects and maintains prove- nance or lineage, the complete history or ancestry of an item. We discuss the advantages of treating provenance as meta-data collected and maintained by the storage sys- tem, rather than as manual annotations stored in a sepa- rately administered database. We describe a PASS imple-

Kiran-kumar Muniswamy-reddy; David A. Holland; Uri Braun; Margo I. Seltzer

2006-01-01

460

Awareness Development for Online Reading  

ERIC Educational Resources Information Center

In a world in which online reading is becoming increasingly common and, as a consequence, online literacy more and more necessary, this paper focuses on possibility of training L2 (second language) readers to bridge the gap between paper reading and online reading. Many researchers believe metacognitive awareness to be the most important ability…

Zenotz, Victoria

2012-01-01

461

CSIRT Requirements for Situational Awareness.  

National Technical Information Service (NTIS)

The term situational awareness comes from the field of aviation. It describes the process of evaluating all the different environmental data around you and using it to make decisions. In the area of computer security, it refers to collecting the informati...

M. Murray R. M. Ruefle

2014-01-01

462

Timeline: Video Traces for Awareness  

Microsoft Academic Search

Always-on media spaces broadcast video to provide awareness and encourage interaction between collaborators. This video can be captured on the fly and presented as a video trace - a visualization allowing viewers to rapidly explore the history of the video stream, ostensibly to gain a better understanding of the activities and availability their collaborators. We present a visualization system that

Michael Nunes; Saul Greenberg; Sheelagh Carpendale; Carl Gutwin

463

Phonological Awareness: Factors of Influence  

ERIC Educational Resources Information Center

Early child development is influenced by various genetic and environmental factors. This study aims to identify factors that affect the phonological awareness of preschool and first grade children. Based on a sample of 330 German-speaking children (mean age = 6.2 years) the following domains were evaluated: Parent factors, birth and pregnancy,…

Frohlich, Linda Paulina; Petermann, Franz; Metz, Dorothee

2013-01-01

464

Water Science Education and Awareness  

NSDL National Science Digital Library

This site is designed to promote water science education and awareness for teachers, educators, schools and the general public. There are links to water basics, conservation, testing and treatment. Other links lead to science fair news and water projects. Also provided is information about the effects of hurricane Katrina on New Orleans and the Gulf Coast.

465

Conflict-Aware Scheduling Algorithm  

NASA Technical Reports Server (NTRS)

conflict-aware scheduling algorithm is being developed to help automate the allocation of NASA s Deep Space Network (DSN) antennas and equipment that are used to communicate with interplanetary scientific spacecraft. The current approach for scheduling DSN ground resources seeks to provide an equitable distribution of tracking services among the multiple scientific missions and is very labor intensive. Due to the large (and increasing) number of mission requests for DSN services, combined with technical and geometric constraints, the DSN is highly oversubscribed. To help automate the process, and reduce the DSN and spaceflight project labor effort required for initiating, maintaining, and negotiating schedules, a new scheduling algorithm is being developed. The scheduling algorithm generates a "conflict-aware" schedule, where all requests are scheduled based on a dynamic priority scheme. The conflict-aware scheduling algorithm allocates all requests for DSN tracking services while identifying and maintaining the conflicts to facilitate collaboration and negotiation between spaceflight missions. These contrast with traditional "conflict-free" scheduling algorithms that assign tracks that are not in conflict and mark the remainder as unscheduled. In the case where full schedule automation is desired (based on mission/event priorities, fairness, allocation rules, geometric constraints, and ground system capabilities/ constraints), a conflict-free schedule can easily be created from the conflict-aware schedule by removing lower priority items that are in conflict.

Wang, Yeou-Fang; Borden, Chester

2006-01-01

466

Teaching Environmental Awareness in Mathematics  

ERIC Educational Resources Information Center

This article is all about the integration of environmental education to the middle school mathematics in China. To raise environmental awareness and improve environmental quality, environmental education is a must. Environment-related materials can be found in middle school algebra and geometry textbooks. In order to provide environmental…

Jianguo, Mao

2004-01-01

467

Community Service Promotes Student Awareness.  

ERIC Educational Resources Information Center

Community service links the school with society and should be part of the middle-level curriculum. Ediger's article describes three sixth-grade community service projects involving a nursing home entertainment program, the police department, and a trash-awareness project. Hamilton and Hanna describe a "points of light" project involving middle…

Schools in the Middle, 1993

1993-01-01

468

An appraisal of students' awareness of "self-reflection" in a first-year pathology course of undergraduate medical/dental education  

PubMed Central

Background Self-reflection and reflective practice are increasingly considered as essential attributes of competent professionals functioning in complex and ever-changing healthcare systems of the 21st century. The aim of this study was to determine the extent of students' awareness and understanding of the reflective process and the meaning of 'self-reflection' within the contextual framework of their learning environment in the first-year of their medical/dental education. We endorse that the introduction of such explicit educational tasks at this early stage enhances and promotes students' awareness, understanding, and proficiency of this skill in their continuing life-long health professional learning. Methods Over two years, students registered in first-year pathology at the University of Saskatchewan were introduced to a self-reflection assignment which comprised in the submission of a one-page reflective document to a template of reflective questions provided in the given context of their learning environment. This was a mandatory but ungraded component at the midterm and final examinations. These documents were individually analyzed and thematically categorized to a "5 levels-of-reflection-awareness" scale using a specially-designed rubric based on the accepted major theories of reflection that included students' identification of: 1) personal abilities, 2) personal learning styles 3) relationships between course material and student history 4) emotional responses and 5) future applications. Results 410 self-reflection documents were analyzed. The student self-awareness on personal learning style (72.7% level 3+) and course content (55.2% level 3+) were well-reflected. Reflections at a level 1 awareness included identification of a) specific teaching strategies utilized to enhance learning (58.4%), b) personal strengths/weaknesses (53%), and c) emotional responses, values, and beliefs (71.5%). Students' abilities to connect information to life experiences and to future events with understanding were more evenly distributed across all 5 levels of reflection-awareness. Conclusions Exposure to self-reflection assignments in the early years of undergraduate medical education increases student awareness and promotes the creation of personal meaning of one's reactions, values, and premises in the context of student learning environments. Early introduction with repetition to such cognitive processes as practice tools increases engagement in reflection that may facilitate proficiency in mastering this competency leading to the creation of future reflective health professionals.

2011-01-01

469

Teaching Context in Information Security  

ERIC Educational Resources Information Center

This article investigates teaching the application of technical ideas by non-technical means, especially by using puzzles to engage students. After discussing the need to teach students to evaluate contexts in which decisions about computer security must be made, we suggest questions and scenarios drawn from political science, history, as well as…

Bishop, Matt

2006-01-01

470

An architecture for a power-aware distributed microsensor node  

Microsoft Academic Search

Networks of distributed microsensors are emerging as a compelling solution for a wide range of data gathering applications. Perhaps the most substantial challenge facing designers of small but long-lived microsensor nodes is the need for significant reductions in energy consumption. We propose a power-aware design methodology that emphasizes the graceful scalability of energy consumption with factors such as available resources,

Rex Min; Manish Bhardwaj; Seong-Hwan Cho; Amit Sinha; Eugene Shih; Alice Wang; Anantha Chandrakasan

2000-01-01

471

Security-aware Resource Optimization in Distributed Service Computing  

Microsoft Academic Search

This chapter considers a set of computer resources used by a service provider to host enterprise applications for customer services subject to a service level agreement (SLA). The SLA defines three QoS metrics, namely, trustworthiness, percentile response time and availability. We first give an overview of current approaches, solutions and challenges in the security-aware resource optimization problem. Then, we present

Kaiqi Xiong; Harry Perros

472

Edutainment Animated Folktales Software to Motivate SocioCultural Awareness  

Microsoft Academic Search

This paper discusses the design and development of an animated folk tales edutainment software to motivate socio-cultural awareness among children and adolescents. One application of multimedia technology is in edutainment, which includes animated cartoon, animation movies and digital games. Edutainment software can be used to tutor specific subjects, or to change behavior by engendering specific socio-cultural attitudes, such as to

AZAN MAT; MOHD NASIR; BANGI Selangor

2007-01-01

473

Energy-aware complexity adaptation for mobile video calls  

Microsoft Academic Search

High energy consumption has become a challenge for multimedia applications on mobile platforms. We propose a cross layer framework that integrates complexity adaptation and energy conservation for mobile video calls. First we select the most utility-aware encoding and decoding parameters for videos of different motion levels through extensive offline profiling and analysis. Then we design a feedback algorithm to adaptively

Haiyang Ma; Deepak Gangadharan; Nalini Venkatasubramanian; Roger Zimmermann

2011-01-01

474

A Grid Approach to Provide Effective Awareness to On-line Collaborative Learning Teams  

Microsoft Academic Search

Providing collaborative learning applications the possibility to offer continuous awareness to on-line collaborative learning teams is a challenging issue since it is essential to keep participants informed of both what is happening and what happened in the learning group. Moreover, awareness is the basis to enhance collaboration and improve the individual and group performance since it allows to track and

S. Caballé; T. Daradoumis; C. Paniagua; F. Xhafa

475

Advanced Weather Awareness and Reporting Enhancements.  

National Technical Information Service (NTIS)

AWARE (Aviation Weather Awareness and Reporting Enhancements) was a NASA Cooperative Research and Development program conducted jointly by Rockwell Scientific, Rockwell Collins, and NASA. The effort culminated in an enhanced weather briefing and reporting...

A. M. Busquets C. C. Ruokangas W. E. Kelly

2005-01-01

476

Aware: Climate, Water, Weather - July 2010.  

National Technical Information Service (NTIS)

This is the July 2010 edition of 'Aware: Climate, Water, Weather'. Aware is published by NOAA National Weather Service to enhance communications within the Agency and with the emergency management community. This publication will aid with disaster prepare...

2010-01-01

477

Q&A: Anesthesia Awareness During Surgery  

MedlinePLUS

Q&A: Anesthesia Awareness During Surgery Share PRINT Print Home > Anesthesia Topics > Detail Page Why does awareness during surgery happen and ... surgery to keep the patient safely under general anesthesia? During surgery, your anesthesiologist will carefully monitor your ...

478

Contextual Awareness for Robust Robot Autonomy.  

National Technical Information Service (NTIS)

Contextual awareness refers to having autonomous robots reason about their capabilities and limitation and improve on those limitations through the help of others. This project explored three areas of contextual awareness detecting when anomalous behavior...

R. Simmons

2013-01-01

479

The Central Neural Foundations of Awareness and Self-Awareness  

NASA Astrophysics Data System (ADS)

In the past, neuroscientists have done very well to concentrate onexplaining the mechanisms for very specific, simple behaviors. For example, our laboratory's work with molecular and neural mechanisms of a simple sex behavior proved for the first time that specific biochemical reactions in specific parts of the brain govern a specific behavior [D. W. Pfaff, Drive: Neurobiological and Molecular Mechanisms of Sexual Motivation (The MIT Press, Cambridge, 1999)]. Now, advances in our field coupled with new techniques permit us to attack the problems of explaining global changes of state in the central nervous system. For example, how does a simple sex behavior depend on sexual arousal, and in turn, how does that sexual arousal depend on other forms of CNS arousal? Of surpassing interest is the explanation of the primary causes of brain arousal [D. W. Pfaff, textit{Brain Arousal and Information Theory: Neural and Genetic Mechanisms} (Harvard University Press, Cambridg e, 2006)]. We have hypothesized that the earliest and most elementary event in waking up the brain is the activation of certain primitive nerve cells in the hindbrain reticular formation. Hypothesizing a `generalized arousal' force emanating from these cells puts forth an idea roughly analogous to the hypothesis of a `big bang' in astrophysics, or to our ideas about the magma of the earth in geophysics. Following the activation of this primitive arousal force we are able to be alert and aware. The neuroanatomical pathways serving brain arousal are fairly well known: they are Bilateral, Bidirectional, Universal among vertebrate animals including humans, and they are always involved in Response Potentiation, approach or avoidance responses (BBURP theory). More than 120 genes are involved in the regulation of brain arousal. In theoretical terms, the discussion so far has dealt with `bottoms up' approaches to awareness -- from mechanisms in the hindbrain working through several phylogenetically ancient pathways, to higher levels of awareness. However, we must also consider `top down' approaches. Based on our thinking and our fantasies, arousal of the central nervous system may be modulated up or down to produce more or less awareness. And then, self-awareness results from our memory of our own behavioral activity.

Pfaff, D.; Martin, E. M.; Weingarten, W.; Vimal, V.

480

Future wireless applications for a networked city: services for visitors and residents  

Microsoft Academic Search

Future wireless networks will offer near-ubiquitous high-bandwidth communications to mobile users. In addition, the accurate position of users will be known, either through network services or via additional sensing devices such as GPS. These characteristics of future mobile environments will enable the development of location-aware and, more generally, context-sensitive applications. In an attempt to explore the system, application, and user

NIGEL DAVIES; KEITH CHEVERST; ADRIAN FRIDAY; KEITH MITCHELL

2002-01-01

481

Supporting rapid design and evaluation of pervasive applications: challenges and solutions  

Microsoft Academic Search

Along with the improvement of the key technologies for pervasive computing, the design of applications itself has emerged\\u000a as a notable research area. A design should decide which features go into the application of supporting its context-awareness\\u000a and ascertaining how well those features add value for users with an acceptable user experience. This paper initially identifies\\u000a the challenges in designing

Lei Tang; Zhiwen Yu; Xingshe Zhou; Hanbo Wang; Christian Becker

2011-01-01

482

Visual analysis of situationally aware building evacuations  

NASA Astrophysics Data System (ADS)

Rapid evacuation of large urban structures (campus buildings, arenas, stadiums, etc.) is a complex operation and of prime interest to emergency responders and planners. Although there is a considerable body of work in evacuation algorithms and methods, most of these are impractical to use in real-world scenarios (non real-time, for instance) or have difficulty handling scenarios with dynamically changing conditions. Our goal in this work is towards developing computer visualizations and real-time visual analytic tools for building evacuations, in order to provide situational awareness and decision support to first responders and emergency planners. We have augmented traditional evacuation algorithms in the following important ways, (1) facilitate real-time complex user interaction with first responder teams, as information is received during an emergency, (2) visual reporting tools for spatial occupancy, temporal cues, and procedural recommendations are provided automatically and at adjustable levels, and (3) multi-scale building models, heuristic evacuation models, and unique graph manipulation techniques for producing near real-time situational awareness. We describe our system, methods and their application using campus buildings as an example. We also report the results of evaluating our system in collaboration with our campus police and safety personnel, via a table-top exercise consisting of 3 different scenarios, and their resulting assessment of the system.

Guest, Jack; Eaglin, Todd; Subramanian, Kalpathi; Ribarsky, William

2013-01-01

483

Information Security Awareness Campaign: An Alternate Approach  

Microsoft Academic Search

\\u000a The destruction due to computer security incidents warns organizations to adopt security measures. In addition to technological\\u000a measures, individual’s information security awareness is also necessary. Different psychological theories have been proposed\\u000a to make an effective information security awareness campaign. These information security awareness campaigns are limited in\\u000a their ability in raising awareness of the participants of the campaign. Although much

Bilal Khan; Khaled S. Alghathbar; Muhammad Khurram Khan

484

Interoceptive awareness in experienced meditators  

PubMed Central

Attention to internal body sensations is practiced inmost meditation traditions. Many traditions state that this practice results in increased awareness of internal body sensations, but scientific studies evaluating this claim are lacking. We predicted that experienced meditators would display performance superior to that of nonmeditators on heartbeat detection, a standard noninvasive measure of resting interoceptive awareness. We compared two groups of meditators (Tibetan Buddhist and Kundalini) to an age- and body mass index-matched group of nonmeditators. Contrary to our prediction, we found no evidence that meditators were superior to nonmeditators in the heartbeat detection task, across several sessions and respiratory modulation conditions. Compared to nonmeditators, however, meditators consistently rated their interoceptive performance as superior and the difficulty of the task as easier. These results provide evidence against the notion that practicing attention to internal body sensations, a core feature of meditation, enhances the ability to sense the heartbeat at rest.

KHALSA, SAHIB S.; RUDRAUF, DAVID; DAMASIO, ANTONIO R.; DAVIDSON, RICHARD J.; LUTZ, ANTOINE; TRANEL, DANIEL

2009-01-01

485

Dyscalculia: awareness and student support.  

PubMed

Dyscalculia is a learning need that requires assessment and provision of reasonable adjustments. Although there have been numerous discussions about how to identify, assess and support dyscalculic children, there is less information available covering further and higher education, and even less concerned with the education of health professionals. This article aims to address this deficit, to discuss the disparity often felt by educators, and to raise awareness of the impact of dyscalculia on student nurses. PMID:23035381

Kirk, Kirsty; Payne, Bob

486

Terrorism Information Awareness (TIA) System  

NSDL National Science Digital Library

The Defense Advanced Research Projects Agency maintains this site for its highly controversial Terrorism Information Awareness (TIA) program. Designed to significantly expand intelligence gathering and information coverage, the TIA program "will enable the intelligence community to evaluate new technologies through experimentation, and rapidly transition it to operational use." This Web site provides a high-level overview of the purposes and goals of the program, as well as a more detailed information paper, frequently asked questions, and a report to Congress.

487

Objective measures of situation awareness in a simulated medical environment  

PubMed Central

One major limitation in the use of human patient simulators is a lack of objective, validated measures of human performance. Objective measures are necessary if simulators are to be used to evaluate the skills and training of medical practitioners and teams or to evaluate the impact of new processes or equipment design on overall system performance. Situation awareness (SA) refers to a person's perception and understanding of their dynamic environment. This awareness and comprehension is critical in making correct decisions that ultimately lead to correct actions in medical care settings. An objective measure of SA may be more sensitive and diagnostic than traditional performance measures. This paper reviews a theory of SA and discusses the methods required for developing an objective measure of SA within the context of a simulated medical environment. Analysis and interpretation of SA data for both individual and team performance in health care are also presented.

Wright, M; Taekman, J; Endsley, M

2004-01-01

488

Real-time Power-Aware Routing in Sensor Networks  

Microsoft Academic Search

Many wireless sensor network applications must resolve the inherent conflict between energy efficient commu- nication and the need to achieve desired quality of service such as end-to-end communication delay. To address this challenge, we propose the Real-time Power-Aware Routing (RPAR) protocol, which achieves application-specified communication delays at low energy cost by dynamically adapting transmission power and routing decisions. RPAR features

Octav Chipara; Zhimin He; Guoliang Xing; Qin Chen; Xiaorui Wang; Chenyang Lu; John A. Stankovic; Tarek F. Abdelzaher

2006-01-01

489

Space-time disarray and visual awareness  

PubMed Central

Local space-time scrambling of optical data leads to violent jerks and dislocations. On masking these, visual awareness of the scene becomes cohesive, with dislocations discounted as amodally occluding foreground. Such cohesive space-time of awareness is technically illusory because ground truth is jumbled whereas awareness is coherent. Apparently the visual field is a construction rather than a (veridical) perception.

Koenderink, Jan; Richards, Whitman; van Doorn, Andrea J

2012-01-01

490

The Test of Phonological Awareness. Critique.  

ERIC Educational Resources Information Center

The Test of Phonological Awareness (TOPA) was developed to help identify children who are delayed in their development of phonological awareness. Research supports the theory that children with poor phonological awareness are at risk of later reading difficulties. Children who score in the bottom quartile of the TOPA are considered to be at risk…

Moore, Jenny

491

A prototype for assessing information security awareness  

Microsoft Academic Search

Due to the intensified need for improved information security, many organisations have established information security awareness programs to ensure that their employees are informed and aware of security risks, thereby protecting themselves and their profitability. In order for a security awareness program to add value to an organisation and at the same time make a contribution to the field of

H. A. Kruger; W. D. Kearney

2006-01-01

492

A prototype for assessing information security awareness  

Microsoft Academic Search

Due to the intensified need for improved information security, many organisations have established information security awareness programs to ensure that their employees are informed and aware of security risks, thereby protecting themselves and their profitability. In order for a security awareness program to add value to an organisation and at the same time make a contribution to the field of

H. A. Kruger; W. D. Kearney

493

Phonological Awareness in Children with Down Syndrome.  

ERIC Educational Resources Information Center

A study examined phonological awareness in 17 children with Down syndrome (ages 9-14). Children demonstrated measurable levels of phonological awareness. Significant positive correlations were found among phonological