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1

Federated Search in the Wild The Combined Power of over a Hundred Search Engines  

E-print Network

Federated Search in the Wild The Combined Power of over a Hundred Search Engines Dong Nguyen1}@cs.utwente.nl ABSTRACT Federated search has the potential of improving web search: the user becomes less dependent Keywords Federated search, distributed information retrieval, evalua- tion, dataset, test collection, web

Hiemstra, Djoerd

2

Meta Search Engines.  

ERIC Educational Resources Information Center

Describes common options and features to consider in evaluating which meta search engine will best meet a searcher's needs. Discusses number and names of engines searched; other sources and specialty engines; search queries; other search options; and results options. (AEF)

Garman, Nancy

1999-01-01

3

Linda Pagli Search Engines  

E-print Network

Linda Pagli Search Engines Abstract The so called Search Engines are basic tools to search in the memories of the search engines; the incoming requests are then processed into these enormous indices of keywords. The first search engines did not function very well: after a query one was submerged of useless

Qian, Ning

4

Techniques for Specialized Search Engines  

E-print Network

It is emerging that it is very difficult for the major search engines to provide a comprehensive and up-to-date search service of the Web. Even the largest search engines index only a small proportion of static Web pages and do not search the Web' s backend databases that are estimated to be 500 times larger than the static Web. The scale of such searching introduces both technical and economic problems. What is more, in many cases users are not able to retrieve the information they desire because of the simple and generic search interface provided by the major search engines. A necessary response to these search problems is the creation of specialized search engines. These search engines search just for information in a particular topic or category on the Web. Such search engines will have smaller and more manageable indexes and have a powerful domainspecific search interface. This paper discusses the issues in this area and gives an overview of the techniques for building specialized search engines. Keywords: specialized search engine, information retrieval, focused crawling, taxonomy, Web search. 1.

Robert Steele

2001-01-01

5

Search Engine Watch  

NSDL National Science Digital Library

Search Engine Watch is a resource designed to provide information to two distinct groups of users: web professionals (commercial webmasters, site designers and promoters), and web searchers. The Webmaster's Guide to Search Engines contains information on search engine design, ranking, and tips on how to make sure your site receives a high relevance rating. Search Engine Facts and Fun contains information on the major search services and links to selected search engine tutorials and ratings articles, among other features.

6

CatS: A Classification-Powered Meta-Search Engine  

Microsoft Academic Search

Summary. CatS is a meta-search engine that utilizes text classification techniques to improve the presentation of search results. After posting a query, the user is offered an opportunity to refine the results by browsing through a category tree derived from the dmoz Open Direc- tory topic hierarchy. This paper describes some key aspects of the system (including HTML parsing, classification

Milos Radovanovi; D. Obradovi

7

Joining the results of heterogeneous search engines  

Microsoft Academic Search

In recent years, while search engines have become more and more powerful, several specialized search engines have been developed for different domains (e.g. library services, services dedicated to specific business sectors, geographic services, and so on). While such services beat generic search engines in their specific domain, they do not enable cross-references; therefore, they are of little use when queries

Daniele Braga; Alessandro Campi; Stefano Ceri; Alessandro Raffio

2008-01-01

8

Geoscience Job Search Engine  

NSDL National Science Digital Library

The Scripps Institution of Oceanography at the University of California, San Diego provides the Geoscience Job Search Engine. The search engine lists academic, industry, and student opportunities in the US and other countries. Searchable fields range from aqueous geochemistry to environmental engineering to volcanology.

9

Search Engine Showdown  

NSDL National Science Digital Library

Created and maintained by Greg Notess, author of Government Information on the Internet and a columnist in Online and Database, this site offers reviews, analysis, statistics, and strategies for many of the major search engines. Organized in four primary sections (Features, Analysis, Learning, News & Talk) the site explores topics such as search engine database size and capabilities, searching for Usenet and phone number information, subject guides, multiple search engines, and tips on successful searching. The site appear to be regularly updated and additional resources include a newsletter, which users may subscribe to at the site.

10

Internet Search Engines  

NSDL National Science Digital Library

If you are reading this Internet Scout report, you most likely have used a search engine before and may have wondered what makes some websites show up on Google and others not. This Topic in Depth provides some background information on search engines. The first website from Webopedia gives an overview of how search engines work (1) provides more information on the mechanics of search engines and debunks some common myths. If any terms used in the article are new to you, this website (3) offers a thesauras of key terms along with tips to help you improve your chances of getting your website to show up on search engines. This brief history from Web Reference (4) provides some perspective on how the technology began, while this article (5) gives some basic information on where we are today with search engine usage and technology. Search Engine Watch offers this listing of kids search engines (6). The University at Albany 7) offers a list of suggestions on how to choose a website for various uses and searching preferences.

11

Cat{S}: A Classification-Powered Meta-Search Engine  

Microsoft Academic Search

CatS is a meta-search engine that utilizes text classification techniques to\\u000a improve the presentation of search results. After posting a query, the user is\\u000a offered an opportunity to refine the results by browsing through a category\\u000a tree derived from the dmoz Open Directory topic hierarchy. This paper\\u000a describes some key aspects of the system (including HTML parsing,\\u000a classification and displaying

Milovs Radovanovic; Mirjana Ivanovic

2006-01-01

12

Measuring search engine bias  

Microsoft Academic Search

This paper examines a real-time measure of bias in Web search engines. The measure captures the degree to which the distribution of URLs, retrieved in response to a query, deviates from an ideal or fair distribution for that query. This ideal is approximated by the distribution produced by a collection of search engines. Differences between bias and classical retrieval measures

Abbe Mowshowitz; Akira Kawaguchi

2005-01-01

13

NPR: Search Engine Wars  

NSDL National Science Digital Library

In April 2004, NPR produced a five-part series to "look at the business of search engines." The stories address how search engines have grown over the years in terms of developing new technologies, expanding public reach, and ultimately becoming a profit-making (and competitive) enterprise. This website offers audio clips of the radio shows along with links to related websites.

14

Search Engine Meeting Report  

NSDL National Science Digital Library

The Fifth Annual Search Engine Meeting was held in Boston, April 10-11, and Chris Sherman, author of the About.com Guide to Web Search (see the December 3, 1999 Scout Report), was in attendance. His detailed, five-part report covers the most important presentations and panel discussions featured at the conference, including Danny Sullivan's State of the Search Engines Report, a talk by Inktomi co-founder Eric Brewer, reports on MSN Search and FAST, a look into the future of intelligent agents, and a spirited panel presentation and open discussion between the chief technologists of the major engines and members of the audience.

15

USGS Search Engine  

NSDL National Science Digital Library

Users can search the large number of the U.S. Geological Survey's web pages with this engine. In addition to the search box (where a key word or title can be typed), the search is further refined by the incorporation of links to categories of topics. The topics consist of resource types such as Fact Sheets or Maps, subjects such as minerals or water quality, or an organizational search on USGS State offices or programs.

16

Speeding up keyword search for search engines  

Microsoft Academic Search

In the current information age, the dominant method for information search is by providing few keywords to a search engine. Keyword search is currently one of the most important operations in search engines and numerous other applications. In this paper we propose a new text indexing technique for improving the performance of keyword search. Our proposed technique not only speeds

Sanjay Baberwal; Ben Choi

2004-01-01

17

Power law scaling for the adiabatic algorithm for search engine ranking  

E-print Network

An important method for search engine result ranking works by finding the principal eigenvector of the "Google matrix." Recently, a quantum algorithm for preparing this eigenvector and evidence of an exponential speedup for some scale-free networks were presented. Here, we show that the run-time depends on features of the graphs other than the degree distribution, and can be altered sufficiently to rule out a general exponential speedup. For a sample of graphs with degree distributions that more closely resemble the Web than in previous work, the proposed algorithm for eigenvector preparation does not appear to run exponentially faster than the classical case.

Adam Frees; John King Gamble; Kenneth Rudinger; Eric Bach; Mark Friesen; Robert Joynt; S. N. Coppersmith

2012-12-05

18

Precision Evaluation of Search Engines  

Microsoft Academic Search

In this paper, we present a general approach for statistically evaluating precision of search engines on the Web. Search engines are evaluated in two steps based on a large number of sample queries: (a) computing relevance scores of hits from each search engine, and (b) ranking the search engines based on statistical comparison of the relevance scores. In computing relevance

Yi Shang; Longzhuang Li

2002-01-01

19

Measuring Search Engine Quality  

Microsoft Academic Search

The effectiveness of twenty public search engines is evaluated using TREC-inspired methodsand a set of 54 queries taken from real Web search logs. The World Wide Web is taken as thetest collection and a combination of crawler and text retrieval system is evaluated. The enginesare compared on a range of measures derivable from binary relevance judgments of the firstseven live

David Hawking; Nick Craswell; Peter Bailey; Kathleen Griffiths

2001-01-01

20

With News Search Engines  

ERIC Educational Resources Information Center

Although there are many news search engines on the Web, finding the news items one wants can be challenging. Choosing appropriate search terms is one of the biggest challenges. Unless one has seen the article that one is seeking, it is often difficult to select words that were used in the headline or text of the article. The limited archives of…

Gunn, Holly

2005-01-01

21

Search Based Software Engineering  

E-print Network

This paper was written to accompany the author's keynote talk for the Workshop on Computational Science in Software Engineering held in conjunction with International Conference in Computational Science 2006 in Reading, UK. The paper explains how software engineering activities can be viewed as a search for solutions that balance many competing constraints to achieve an optimal or near optimal result.

Mark Harman King' s; Mark Harman

2001-01-01

22

Web Search Engines: Search Syntax and Features.  

ERIC Educational Resources Information Center

Presents a chart that explains the search syntax, features, and commands used by the 12 most widely used general Web search engines. Discusses Web standardization, expanded types of content searched, size of databases, and search engines that include both simple and advanced versions. (LRW)

Ojala, Marydee

2002-01-01

23

Search Engine Optimization 1  

E-print Network

Search Engine Optimization (SEO) is an Internet marketing strategy and a process, widely used now-a-days for improving the volume or quality of traffic to a website through search engines. The results generated by search engines can be natural (organic or algorithmic) and/or paid search. In the present study, different techniques were used for achieving better optimization for Web 2.0 based websites. Different techniques related to SEO like keyword discovery, crawling, on-page and off-page optimization and different Google tools are discussed in this paper. The present study also study also describes the impact of SEO on Internet marketing. The results of the investigation help webmasters to gain a deep insight about SEO and also to guide them in making better decisions regarding their online advertising and marketing campaign.

Karthikeyan K; Sangeetha M

24

Power-law scaling for the adiabatic algorithm for search-engine ranking  

NASA Astrophysics Data System (ADS)

An important method for search engine result ranking works by finding the principal eigenvector of the “Google matrix.” Recently, a quantum algorithm for generating this eigenvector as a quantum state was presented, with evidence of an exponential speedup of this process for some scale-free networks. Here we show that the run time depends on features of the graphs other than the degree distribution, and can be altered sufficiently to rule out a general exponential speedup. According to our simulations, for a sample of graphs with degree distributions that are scale-free, with parameters thought to closely resemble the Web, the proposed algorithm for eigenvector preparation does not appear to run exponentially faster than the classical case.

Frees, Adam; Gamble, John King; Rudinger, Kenneth; Bach, Eric; Friesen, Mark; Joynt, Robert; Coppersmith, S. N.

2013-09-01

25

Inktomi Search Engine  

NSDL National Science Digital Library

The Inktomi search engine at the University of California at Berkeley offers a large database of indexed Web documents and "scalable web server" technology providing very fast search retrievals. Inktomi's simple search interface uses "+" as its MUST operator and "-" as its NOT operator. Relevance of the retrieval is ranked by how many of the words are used on the retrieved page, and by the relative importance of those words, although how this importance is determined is not revealed. Inktomi's database upgrade on December 29, 1995 made 2.8 million documents available for searching.

26

Search-based software engineering  

Microsoft Academic Search

This paper claims that a new field of Software Engineering research and practice is emerging: Search-Based Software Engineering. The paper argues that Software Engineering is ideal for the application of metaheuristic search techniques, such as genetic algorithms, simulated annealing and tabu search. Such search-based techniques could provide solutions to the difficult problems of balancing competing (and sometimes inconsistent) constraints and

Mark Harman; Bryan F. Jones

2001-01-01

27

The Rising Power of Search-Engines on the Internet: Impacts on Users, Media Policy, and Media Business  

Microsoft Academic Search

Search engines help customers to decrease their information overload and enhance the sales of commercial web sites in different ways. For this reason, the exploration of (human) online searching behavior has become a subject of particular importance. We set benchmarks to describe online searching behavior in web information systems. In the first step, we give a literature overview of analyses

Martina Koch

28

Search Engine Guide  

NSDL National Science Digital Library

This massive metasite should keep even the most hardcore search engine junkie busy, with over 2,200 briefly annotated links to search engines, portals, directories, and indexes. The links are organized under twelve subject headings, such as Arts, Business, Reference, Social Science, and Government, which are further broken down by topic. What's New, What's Cool, and Top 10 lists are also provided. In addition, users can track new listings by subscribing to a free email update service. While there were a few holes here and there, the sheer size of this site and the frequent updates make it a valuable resource for users on the hunt for a specialized directory or those who like to keep track of new search engines.

29

Search Engine Colossus: International Directory of Search Engines  

NSDL National Science Digital Library

Created by Bryan Strome, this metasite offers links to a large number of country- or region-specific search engines. The search engines are organized by country, with a link to the service, the language(s) it uses, its point of origin, and a short description when available. The number of search engines available under each heading can vary considerably, as would be expected. Search engines in eleven general categories, including Academic, Business, Medical, and Sports, are also listed. Users wishing to narrow their searches and/or utilize some lesser-known search engines will find this site a helpful starting point.

Strome, Bryan A.

30

DATA SEARCH ENGINE INTRODUCTION  

E-print Network

are performed every day. The Web consists of the Surface Web and the Deep Web (Hidden Web or Invisible Web of a page allows the page to be fetched directly. In contrast, the Deep Web contains pages that cannotD DATA SEARCH ENGINE INTRODUCTION The World Wide Web was first developed by Tim Berners- Lee

Meng, Weiyi

31

The Search Engine Industry  

Microsoft Academic Search

\\u000a In this chapter we present the main trends in the search engine industry. Being such industry technology based, its dynamics\\u000a can be assessed by applying theories such as (a) dominant design, (b) complementary assets, (c) product and service architecture\\u000a and (d) disruptive technologies. We dedicate the first section of this chapter to reviewing such literature and explaining\\u000a how to apply

Tommaso Buganza; Emanuele Della Valle

2009-01-01

32

Mining Templates from Search Result Records of Search Engines  

E-print Network

Mining Templates from Search Result Records of Search Engines Hongkun Zhao, Weiyi Meng State from search engines in response to user queries. The search result records from a given search engine template for any search engine using sample search result records. Our approach can identify both template

Meng, Weiyi

33

SavvySearch: A MetaSearch Engine that Learns which Search Engines to Query  

E-print Network

SavvySearch: A Meta­Search Engine that Learns which Search Engines to Query Adele E. Howe Daniel Collins, CO 80523 howe@cs.colostate.edu daniel@media.mit.edu January 28, 1997 Abstract Search engines are among the most successful applications on the Web today. So many search engines have been created

Howe, Adele E.

34

SEE: a Search Engine for Search Engines Hyun-Woo Kim  

E-print Network

SEE: a Search Engine for Search Engines Hyun-Woo Kim College of Information Sciences and Technology describe the way how I developed a new kind of search engine named SEE, a search engine for search engines, which could be used for finding other relevant search engines retrieving its own databases, which

35

Assessing Bias in Search Engines.  

ERIC Educational Resources Information Center

Addresses the measurement of bias in search engines on the Web, defining bias as the balance and representation of items in a collection retrieved from a database for a set of queries. Assesses bias by measuring the deviation from the ideal of the distribution produced by a particular search engine. (Author/LRW)

Mowshowitz, Abbe; Kawaguchi, Akira

2002-01-01

36

Internet Search Engines and Robots  

Microsoft Academic Search

An overview of the Internet is provided. It describes what the Internet is, how and when it was started, and the four main functions it currently offers. It then focuses on the World Wide Web, and in particular robots and search engines. An overview is provided of both robots and search engines, with some examples and illustrations. It concludes with

Catherine Hume

2000-01-01

37

Yahoo! Debuts New Search Engine  

NSDL National Science Digital Library

In 1996 Yahoo! enhanced its search interface to help users more quickly reach the Internet resources they need. Searches return a summary page, which presents hits in four categories: Yahoo Categories, Web Sites, Net Events (from the Yahoo Net Events site) and News (from Reuters, PR Newswire, Business Wire, and UPI). If a search comes up empty in these four categories, it will be referred to the Alta Vista search engine for an Internet-wide search. In addition, search results are now presented in order of relevance (as determined by the search engine, which may have a fairly sketchy grasp on what the user really wants) rather than alphabetically, though the user can choose an alphabetical list instead. An advanced search page allows limited Boolean operation, searching of particular Yahoo! resources, a time frame for listings, and how many matches to display per page.

1996-01-01

38

Site-Searching Strategies of Searchers Referred from Search Engines  

E-print Network

1 Site-Searching Strategies of Searchers Referred from Search Engines Adan Ortiz-Cordova College search engines. Findings are based on a random sample of 10,000 from a total of 327,261 searching of referral keywords (i.e., search terms) used at the major search engine. Of the six, the three major

Jansen, James

39

Solar powered Stirling engine  

SciTech Connect

In a solar dish module which comprises a dish which receives incident solar rays and reflects them to a focus at which is located the combination of a receiver and a heat engine organized and arranged so that the heat energy of the reflected solar rays collected at the receiver powers the engine, and wherein the receiver and heat engine are supported from the dish by a framework, the improvement is described which comprises journal means for journaling at least the engine on the framework to maintain certain predetermined spatial orientation for the engine in relation to the direction of gravity irrespective of spatial orientation of the dish.

Meijer, R.J.

1987-11-24

40

A Search Engine Features Comparison.  

ERIC Educational Resources Information Center

Until recently, the World Wide Web (WWW) public access search engines have not included many of the advanced commands, options, and features commonly available with the for-profit online database user interfaces, such as DIALOG. This study evaluates the features and characteristics common to both types of search interfaces, examines the Web search

Vorndran, Gerald

41

Studies and evaluation on meta search engines  

Microsoft Academic Search

Meta search engines can solve the low recall disadvantage of individual search engines to a certain degree. Starting with the present situation and classification of search engines, this paper made a brief introduction to the concept of meta search engines, and focused on the basic system structure and key technologies in their individual modules, finally made a short summary.

Lin Guoyuan; Tang Jiutao; Wang Chun

2011-01-01

42

Impact of search engines on page popularity  

Microsoft Academic Search

Recent studies show that a majority of Web page accesses are referred by search engines. In this paper we study the widespread use of Web search engines and its impact on the ecology of the Web. In particular, we study how much impact search engines have on the popularity evolution of Web pages. For example, given that search engines return

Junghoo Cho; Sourashis Roy

2004-01-01

43

Formal Topology and Search Engine Silvio Valentini  

E-print Network

Formal Topology and Search Engine Silvio Valentini Dipartimento di Matematica Pura ed Applicata, 2001 Abstract Formal topology can be the key tool to create a new kind of search engine for finding information in the web. 1 The need for topology in a search engine The purpose of a search engine is to find

Valentini, Silvio

44

Stirling engine power control  

DOEpatents

A power control method and apparatus for a Stirling engine including a valved duct connected to the junction of the regenerator and the cooler and running to a bypass chamber connected between the heater and the cylinder. An oscillating zone of demarcation between the hot and cold portions of the working gas is established in the bypass chamber, and the engine pistons and cylinders can run cold.

Fraser, James P. (Scotia, NY)

1983-01-01

45

Start Your Engines: Surfing with Search Engines for Kids.  

ERIC Educational Resources Information Center

Suggests that to be an effective educator and user of the Web it is essential to know the basics about search engines. Presents tips for using search engines. Describes several search engines for children and young adults, as well as some general filtered search engines for children. (AEF)

Byerly, Greg; Brodie, Carolyn S.

1999-01-01

46

Sampling search-engine results  

Microsoft Academic Search

We consider the problem of efficiently sampling Web search engine query results. In turn, using a small random sample instead of the full set of results leads to efficient approximate algorithms for several applications, such as: Determining the set of categories in a given taxonomy spanned by the search results;Finding the range of metadata values associated to the result set

Aris Anagnostopoulos; Andrei Z. Broder; David Carmel

2005-01-01

47

The Role and Importance of Search Engine and Search Engine Optimization  

E-print Network

Abstract: Search Engines are basically designed for searching the relevant content. Search Engine Optimization is collection of techniques and practices by which any website can increase ranking in search engine. Search Engine Optimization is divided into two parts, first one is on page and second one is off page. This paper describes the role, importance and working of search engine. And also describe about the concept and overview of search engine optimization and its types.

Ayush Jain

48

Search Engine Optimization: SEO Book  

NSDL National Science Digital Library

The strange and wondrous ways in which search engines gather their indexes is made a little clearer in this tutorial. Written by a web designer disappointed with how difficult his pages were to find with the standard search engines, this page gives insight into how Infoseek, Lycos, Alta Vista, Excite, Web Crawler, and Open Text catalog web pages. The search strategy of each engine is described, along with tips for how web designers can increase their site's chances of being among the hits returned when users enter relevant search criteria. Although indexing algorithms are constantly being updated, this site presents common-sense guidelines that web designers interested in reaching a wider audience will find useful.

Wall, Aaron

49

Mining templates from search result records of search engines  

Microsoft Academic Search

Metasearch engine, Comparison-shopping and Deep Web crawling applications need to extract search result records enwrapped in result pages returned from search engines in response to user queries. The search result records from a given search engine are usually formatted based on a template. Precisely identifying this template can greatly help extract and annotate the data units within each record correctly.

Hongkun Zhao; Weiyi Meng; Clement T. Yu

2007-01-01

50

Modeling Long-Term Search Engine Usage  

Microsoft Academic Search

Search engines are key components in the online world and the choice of search engine is an important determinant of the user experience. In this work we seek to model user behaviors and determine key variables that af- fect search engine usage. In particular, we study the engine usage behavior of more than ten thousand users over a period of

Ryen W. White; Ashish Kapoor; Susan T. Dumais

2010-01-01

51

Search Based Software Engineering Mark Harman  

E-print Network

Search Based Software Engineering Mark Harman King's College London, Strand, London, WC2R 2LS. The aim of Search Based Software Engineering (SBSE) research is to move software engineering problems from describes the search based approach, providing pointers to the literature. 1 Introduction Software engineers

Singer, Jeremy

52

Multimedia Chinese Web Search Engines: A Survey  

Microsoft Academic Search

The objective of this paper is to explore the state of multimedia search functionality on major general and dedicated Web search engines in Chinese language. The authors studied: a) how many Chinese Web search engines presently make use of multimedia searching, and b) the type of multimedia search functionality available. Specifically, the followings were examined: a) multimedia features - features

Yun-ke Chang; Amanda Spink

2007-01-01

53

SavvySearch: A Meta-Search Engine that Learns which Search Engines to Query  

E-print Network

Search engines are among the most successful applications on the Web today. So many search engines have been created that it is difficult for users to know where they are, how to use them and what topics they best address. Meta-search engines reduce the user burden by dispatching queries to multiple search engines in parallel. The SavvySearch meta-search engine is designed to efficiently query other search engines by carefully selecting those search engines likely to return useful results and by responding to fluctuating load demands on the Web. SavvySearch learns to identify which search engines are most appropriate for particular queries, reasons about resource demands and represents an iterative parallel search strategy as a simple plan. 1 The Application: Meta-Search on the Web Companies, institutions and individuals must have a presence on the Web; each are vying for the attention of millions of people. Not too surprisingly then, the most successful applications on the Web to dat...

Adele E. Howe; Daniel Dreilinger

1997-01-01

54

Enhancing web search by promoting multiple search engine use  

Microsoft Academic Search

Any given Web search engine may provide higher quality results than others for certain queries. Therefore, it is in users' best inter- est to utilize multiple search engines. In this paper, we propose and evaluate a framework that maximizes users' search effective- ness by directing them to the engine that yields the best results for the current query. In contrast

Ryen W. White; Matthew Richardson; Mikhail Bilenko; Allison P. Heath

2008-01-01

55

Staleness Among Web Search Engines.  

ERIC Educational Resources Information Center

Describes a study of four major Web search engines that tested for staleness, a condition when a significant number of the hits it returns point to Web pages or server-level domains (SLD) that are no longer viable. Results of tests of URLs with AltaVista, HotBot, InfoSeek, and Open Text are discussed. (Author/LRW)

Koehler, Wallace

1998-01-01

56

Space Power Engineering Problems  

NASA Astrophysics Data System (ADS)

Development of space power engineering in the first half of XXI century shall be aimed at preventing the forthcoming energy crisis and ecological catastrophes. The problem can be solved through using solar energy being perpetual, endless, and ecologically safe. As of now, issues on the development and employment of solar power stations and its beaming to the ground stations in the SHF band are put on the agenda. The most pressing problem is to develop orbital solar reflectors to illuminate towns in the polar regions, agricultural regions, and areas of processing sea products. Space-based technologies can be used to deal with typhoons, green house effects, and "ozone holes". Recently, large, frameless film structures formed by centrifugal forces offer the promise of structures for orbital power plants, reflectors, and solar sails. A big success is achieved in the development of power generating solar array elements of amorphous silicon. These innovations would make the development of orbital solar power plants dozens of times cheaper. Such solar arrays shall be used in the nearest future on heavy communication satellites and the Earth remote sensing platforms for generation of 140-160 kW at a specific power beyond 300 W/kg. The cargo traffic needed to develop and maintain the orbital power plants and reflector systems could be equipped with solar sails as the future low thrust propulsion. In 2000, the mankind witnessed an unexpected beginning of energy crisis along with strong hydro- meteorological events (typhoons, floods) that shocked the USA, the Western Europe, England, Japan, and other countries. The total damage is estimated as 90 billions of dollars. The mankind is approaching a boundary beyond which its further existence would depend on how people would learn to control weather and use ecologically safe power sources. Space technology base on the research potential accumulated in the previous century could serve for the solution of this problem.

Senkevich, V. P.

2002-01-01

57

User Reactions to Search Engines Logos: Investigating Brand Knowledge of web Search Engines  

E-print Network

User Reactions to Search Engines Logos: Investigating Brand Knowledge of web Search Engines Bernard 16802-1307 asm6@psu.edu ABSTRACT In this work, we investigate consumer reaction to web search engine logos. Our research is motivated by a small number of search engines dominating a market in which

Jansen, James

58

Web Search Engines: (More) Features and Commands.  

ERIC Educational Resources Information Center

Provides a summary look at the features provided by nine major World Wide Web search engines. Examines size, Boolean operators, phrase searching capabilities, media searching, format options, and special features. (LRW)

Hock, Randolph

2000-01-01

59

Automatic performance evaluation of Web search engines  

Microsoft Academic Search

Measuring the information retrieval effectiveness of World Wide Web search engines is costly because of human relevance judgments involved. However, both for business enterprises and people it is important to know the most effective Web search engines, since such search engines help their users find higher number of relevant Web pages with less effort. Furthermore, this information can be used

Fazli Can; Rabia Nuray; Ayisigi B. Sevdik

2004-01-01

60

MALAYSIAN WEB SEARCH ENGINES: A CRITICAL ANALYSIS  

Microsoft Academic Search

This paper reports the results of a study conducted to explore and compare the features of independently built Malaysian Web search engines, as well as evaluate their performance and search capabilities. Four Malaysian independently built search engines were chosen for the study and Google served as the benchmark engine. This study applied two co-related methodologies, namely Information Retrieval Evaluation Methodology

Hananzita Halim; Kiran Kaur

2006-01-01

61

On caching search engine query results  

Microsoft Academic Search

In this paper we explore the problem of Caching of Search Engine Query Results in order to reduce the computing and I\\/O requirements needed to support the functionality of a search engine of the World Wide Web.We study query traces from the EXCITE search engine and show that they have a significant amount of temporal locality that is, a significant

Evangelos P. Markatos

2001-01-01

62

An Analysis of Chinese Search Engine Filtering  

Microsoft Academic Search

The imposition of government mandates upon Internet search engine operation is a growing area of interest for both computer science and public policy. Users of these search engines often observe evidence of censorship, but the government policies that impose this censorship are not generally public. To better understand these policies, we conducted a set of experiments on major search engines

Tao Zhu; Christopher Bronk; Dan S. Wallach

2011-01-01

63

Smart search engine using artificial intelligence  

Microsoft Academic Search

Due to the increasing information on the Web it becomes very difficult for a single search engine to provide comprehensive Web coverage, thus increasing the difficulty for an average user to search information on the web. We have proposed an idea for smart Meta search engine which will have a more comprehensive coverage of the web by targeting different search

A. Modi; A. Bhandari; K. Desai; N. Shah

2011-01-01

64

New perspectives on Web search engine research  

E-print Network

Purpose – The purpose of this chapter is to give an overview of the context of Web search and search engine-?related research, as well as to introduce the reader to the sections and chapters of the book. Methodology/approach – We review literature dealing with various aspects of search engines, with special emphasis on emerging areas of Web searching, search engine evaluation going beyond traditional methods, and new perspectives on Web searching. Findings – The approaches to studying Web search engines are manifold. Given the importance of Web search engines for knowledge acquisition, research from different perspectives needs to be integrated into a more cohesive perspective. Research limitations/implications – The chapter suggests a basis for research in the field and also introduces further research directions. Originality/value of paper – The chapter gives a concise overview of the topics dealt within the book and also shows directions for researchers interested in Web search engines.

Dirk Lewandowski

65

Search Engines: Gateway to a New ``Panopticon''?  

NASA Astrophysics Data System (ADS)

Nowadays, Internet users are depending on various search engines in order to be able to find requested information on the Web. Although most users feel that they are and remain anonymous when they place their search queries, reality proves otherwise. The increasing importance of search engines for the location of the desired information on the Internet usually leads to considerable inroads into the privacy of users. The scope of this paper is to study the main privacy issues with regard to search engines, such as the anonymisation of search logs and their retention period, and to examine the applicability of the European data protection legislation to non-EU search engine providers. Ixquick, a privacy-friendly meta search engine will be presented as an alternative to privacy intrusive existing practices of search engines.

Kosta, Eleni; Kalloniatis, Christos; Mitrou, Lilian; Kavakli, Evangelia

66

NASA Indexing Benchmarks: Evaluating Text Search Engines  

NASA Technical Reports Server (NTRS)

The current proliferation of on-line information resources underscores the requirement for the ability to index collections of information and search and retrieve them in a convenient manner. This study develops criteria for analytically comparing the index and search engines and presents results for a number of freely available search engines. A product of this research is a toolkit capable of automatically indexing, searching, and extracting performance statistics from each of the focused search engines. This toolkit is highly configurable and has the ability to run these benchmark tests against other engines as well. Results demonstrate that the tested search engines can be grouped into two levels. Level one engines are efficient on small to medium sized data collections, but show weaknesses when used for collections 100MB or larger. Level two search engines are recommended for data collections up to and beyond 100MB.

Esler, Sandra L.; Nelson, Michael L.

1997-01-01

67

DMBC: SEO (Search Engine Optimization) search engines in a natural, non-promoted or advertised way.  

E-print Network

DMBC: SEO (Search Engine Optimization) SEO · e within search engines in a natural, non-promoted or advertised way. Search Engine Optimization is the practice of increasing the visibility of a websit previously searched for (and clicked on) your site vs. another content? More unique visitors = higher

Stowell, Michael

68

Discovering geographic web services in search engines  

Microsoft Academic Search

Purpose – There is an open discussion in the geographic information community about the use of digital libraries or search engines for the discovery of resources. Some researchers suggest that search engines are a feasible alternative for searching geographic web services based on anecdotal evidence. The purpose of this study is to measure the performance of Bing (formerly Microsoft Live

Francisco J. Lopez-Pellicer; Aneta J. Florczyk; Rubén Béjar; Pedro R. Muro-Medrano; F. Javier Zarazaga-Soria

2011-01-01

69

Internet Search Engines - Fluctuations in Document Accessibility.  

ERIC Educational Resources Information Center

Reports an empirical investigation of the consistency of retrieval through Internet search engines. Evaluates 13 engines: AltaVista, EuroFerret, Excite, HotBot, InfoSeek, Lycos, MSN, NorthernLight, Snap, WebCrawler, and three national Dutch engines: Ilse, Search.nl and Vindex. The focus is on a characteristic related to size: the degree of…

Mettrop, Wouter; Nieuwenhuysen, Paul

2001-01-01

70

ACES: A Contextual Engine for Search  

E-print Network

wl, parse and index web pages of a small domain ( Computer Science Department) and run our search engine on this text database. The architecture of the search engine is illustrated in Figure 1. Arrows show the flow of information. Retrieval Session Engine Manager Text DB DBMS Internet Query Web Browser Search Result CGI Query Clickthrough Data Figure 1: Architecture of the Search Engine In the session mode, the search engine uses a relational database management system (MySQL in our system) to store user query history and clickthrough information(title and summary of clicked web pages). We use the IP address to differentiate the user and assume that in a short time period only one user is using this computer. The search engine is based on Lemur Toolkit. We also use AP data for the quantitative evaluation of ACES system. 1. REFERENCES

Xuehua Shen Smitha; Xuehua Shen; Smitha Sriram; Chengxiang Zhai

71

The Country Music Search Engine  

NSDL National Science Digital Library

Garth Brooks fans, hold on to your hats! The Country Music Search Engine offers a full spectrum of country music news and information. Featured on the site is the enormous Country Music Directory, a database of all things related to country music including Websites for individual singers or groups, news links and online publications, associations, and sheet music and lyrics. The directory seems to be geared more towards mainstream country music: a search for Shania Twain rendered 242 hits while "Robbie Fulks" pulled up just one Web resource. The Website also contains a listing of the top 40 Websites as ranked by visitors to the site, and links to country events, MP3s, and album reviews.

72

Supreme Court audio file search engine  

E-print Network

Search engines have evolved from simple text indexing to indexing other forms of media, such as audio and video. I have designed and implemented a web-based system that permits people to search the transcripts of selected ...

Wang, Edward M., 1976-

2004-01-01

73

Exploring the Advances in Semantic Search Engines  

Microsoft Academic Search

\\u000a With the vertiginous volume information growing, the amount of answers provided by traditional search engines and satisfying\\u000a syntactically the user queries has enlarged directly. In order to reduce this problem the race to develop Semantic Search\\u000a Engines (SSE) is increasingly popular. Currently, there are multiple proposals for Semantic Search Engines, and they are using\\u000a a wide range of methods for

Walter Renteria-Agualimpia; Francisco J. López-Pellicer; Pedro R. Muro-Medrano; Javier Nogueras-Iso; F. Zarazaga-Soria

74

Scalability Challenges in Web Search Engines  

Microsoft Academic Search

\\u000a Continuous growth of the Web and user bases forces web search engine companies to make costly investments on very large compute\\u000a infrastructures. The scalability of these infrastructures requires careful performance optimizations in every major component\\u000a of the search engine. Herein, we try to provide a fairly comprehensive coverage of the literature on scalability challenges\\u000a in large-scale web search engines. We

Berkant Barla Cambazoglu; Ricardo Baeza-Yates

75

A Powerful New Engine  

NASA Technical Reports Server (NTRS)

Through Small Business Innovation Research (SBIR) funding from NASA's Glenn Research Center, Moller International created a new coating for rotary engines, which significantly improves the fuel consumption of a vehicle while reducing emissions. The new coatings are offered in the new Rotapower(R) engine, which is produced and distributed by Moller subsidiary, Freedom Motors, Inc. The coating allows the Rotapower engine to function smoother than other models, reducing wear and protecting the engine. The Rotapower engine has the ability to operate on a variety of fuels, including gasoline, natural gas, diesel, alcohol, and kerosene. A small and lightweight engine, it is projected to replace many of today's bulkier versions. The 10 horsepower model fits in the palm of one's hand, while the 160 horsepower model fits into a 5-gallon bucket. The clean running Rotapower engine is environmentally appealing, because it eliminates over 98 percent of the total emissions given off by traditional piston engines. Fewer pollutants are spewed into the air, making it especially attractive in areas where air pollution is a major problem. Due to the clean-burning nature of the engine, it meets the stringent standards set by the California Air Resources Board. The engine also has numerous commercial benefits in several types of recreational, industrial, and transportation applications, including personal watercraft, snowmobiles, portable generators. and pumps.

2001-01-01

76

Automatic classification of meta-search engine design and implementation  

Microsoft Academic Search

As growing network information, as well as the limitations of traditional search engines, so that people searching for information using traditional search engine, the difficulty greatly increased. We have developed a Meta search engine, which can be automatic classification of information, users use this search engine to search for information; on the one hand can guarantee the recall of information.

Jiandong Cao; Yang Tang; Jian Song

2010-01-01

77

Distributed Search Engine for an IaaS Based Cloud  

Microsoft Academic Search

Cloud based online storage enables the storage of massive data. In these systems, a full text search engine is very important for finding documents. In this paper, we propose a distributed search engine suitable for searching a cloud. In our previous work, we developed a distributed search engine, the cooperative search engine (CSE). We now extend the CSE to search

Yuuta Ichikawa; Minoru Uehara

2011-01-01

78

Improving product review search experiences on general search engines  

Microsoft Academic Search

In the Web 2.0 era, internet users contribute a large amount of online content. Product review is a good example. Since these phenomena are distributed all over shopping sites, weblogs, forums etc., most people have to rely on general search engines to discover and digest others' comments. While conventional search engines work well in many situations, it's not sufficient for

Shen Huang; Dan Shen; Wei Feng; Catherine Baudin; Yongzheng Zhang

2009-01-01

79

Image Searching on the Excite Web Search Engine.  

ERIC Educational Resources Information Center

Examines visual information needs as expressed in users' Web image queries on the Excite search engine. Discusses metadata; content-based image retrieval; user interaction with images; terms per query; term frequency; and implications for the development of models for visual information retrieval and for the design of Web search engines.…

Goodrum, Abby; Spink, Amanda

2001-01-01

80

Online IR system evaluation: online databases versus Web search engines  

Microsoft Academic Search

This study evaluated two different types of online information retrieval (IR) systems: online databases and Web search engines, in terms of user generated criteria. It also compares four types of Web search engines: directories, search engines, meta-search engines, and specialized search engines. The results show that three elements are essential to users in the evaluation of online IR systems: interface

2004-01-01

81

SCREEN READERS AND SEARCH ENGINE ROBOTS: Do Accessible Web Sites Yield Higher Search Engine Visibility?  

Microsoft Academic Search

This paper is the result of research gathered from both search engine experts and search engine publications\\/guidelines. Because search engine algorithms are kept highly secret this is not a 100% accurate paper; instead it is common best practices. If time had presented itself, a test may have been conducted using two differently coded pages, one based on the guidelines listed

Nils Hanson

82

Searching for the Fundamentals of Tissue Engineering  

E-print Network

Searching for the Fundamentals of Tissue Engineering Ana Barradas 14th February 2013 14/02/2013 1 #12;Tissue Engineering... in words Tissue Engineering is an interdisciplinary field that applies, maintain or improve tissue function. Langer and Vacanti; Tissue Engineering; Science; 1993 2 #12;Tissue

Twente, Universiteit

83

Search-Based Software Engineering Mark Harman  

E-print Network

successfully to a number of engineering problems. For example, a literature survey of genetic algorithms; electronic engineering [5, 11, 25] Genetic algorithm (GA) research and researchers have even received in the more established #12;elds of engineering. A literature search on `Software Engineering' and `genetic

Singer, Jeremy

84

Leveraging Search Engine Results for Query Classification  

Microsoft Academic Search

Web query classification is significant to search engines for the purpose of efficient retrieval of ap- propriate results in response to user queries. User queries are short in nature, contain noise and are ambiguous in terms of user intent. In this paper, we present d ifferent features—such as snippets, page content and titles of search engine results for a given

Shruti K. Bhandari; Brian D. Davison

85

New Evaluation Methods for Web Search Engine  

Microsoft Academic Search

Nowadays, it is not easy to obtain the target information because the Web space is increasing. Therefore, the search engine is necessary and its performance improvement is required. However, in the conventional methods,the performance evaluation is mainly based on simple score of relevant documents, conventional evaluation methods for search engine performance are not best ones. In this paper, we propose

Takashi Ohtsuka; Hayato Yaman

2003-01-01

86

The freshness of web search engine databases  

Microsoft Academic Search

This study measures the frequency in which search engines update their indices. Therefore, 38 websites that are updated on a daily basis were analysed within a time- span of six weeks. The analysed search engines were Google, Yahoo and MSN. We find that Google performs best overall with the most pages updated on a daily basis, but only MSN is

Dirk Lewandowski; Henry Wahlig; Gunnar Meyer-bautor

2006-01-01

87

Multiple language supports in search engines  

Microsoft Academic Search

Purpose – This paper aims to investigate the multiple language support features in internet search engines. The diversity of the internet is reflected not only in its users, information formats and information content, but also in the languages used. As more and more information becomes available in different languages, multiple language support in a search engine becomes more important. Design\\/methodology\\/approach

Jin Zhang; Suyu Lin

2007-01-01

88

Fully automatic wrapper generation for search engines  

Microsoft Academic Search

When a query is submitted to a search engine, the search engine returns a dynamically generated result page containing the result records, each of which usually consists of a link to and\\/or snippet of a retrieved Web page. In addition, such a result page often also contains information irrelevant to the query, such as information related to the hosting site

Hongkun Zhao; Weiyi Meng; Zonghuan Wu; Vijay Raghavan; Clement T. Yu

2005-01-01

89

Subject Gateway Sites and Search Engine Ranking.  

ERIC Educational Resources Information Center

Discusses subject gateway sites and commercial search engines for the Web and presents an explanation of Google's PageRank algorithm. The principle question addressed is the conditions under which a gateway site will increase the likelihood that a target page is found in search engines. (LRW)

Thelwall, Mike

2002-01-01

90

Agent Communication Inside an Internet Search Engine  

E-print Network

to the web. i-Bot is provided with an agent-based architecture, which is best explained in terms of its to other search engines and by providing some conclusions. Figure 1: iBot (Web search engine) Architecture as bots, that are dedicated to download HTML pages from the Web. Bots are not mobile agents (that migrate

López-Sánchez, Maite

91

MEMS Rotary Engine Power System  

NASA Astrophysics Data System (ADS)

This work presents a project overview and recent research results for the MEMS Rotary Engine Power System project at the Berkeley Sensor & Actuator Center of the University of California at Berkeley. The research motivation for the project is the high specific energy density of hydrocarbon fuels. When compared with the energy density of batteries, hydrocarbon fuels may have as much as 20x more energy. However, the technical challenge is the conversion of hydrocarbon fuel to electricity in an efficient and clean micro engine. A 12.9 mm diameter Wankel engine will be shown that has already generated 4 Watts of power at 9300rpm. In addition, the 1mm and 2.4 mm Wankel engines that BSAC is developing for power generation at the microscale will be discussed. The project goal is to develop electrical power output of 90milliwatts from the 2.4 mm engine. Prototype engine components have already been fabricated and these will be described. The integrated generator design concept utilizes a nickel-iron alloy electroplated in the engine rotor poles, so that the engine rotor also serves as the generator rotor.

Fernandez-Pello, A. Carlos; Pisano, Albert P.; Fu, Kelvin; Walther, David C.; Knobloch, Aaron; Martinez, Fabian; Senesky, Matt; Stoldt, Conrad; Maboudian, Roya; Sanders, Seth; Liepmann, Dorian

92

Smart internet search engine through 6W  

NASA Astrophysics Data System (ADS)

Current Internet search engine technology is limited in its ability to display necessary relevant information to the user. Yahoo, Google and Microsoft use lookup tables or indexes which limits the ability of users to find their desired information. While these companies have improved their results over the years by enhancing their existing technology and algorithms with specialized heuristics such as PageRank, there is a need for a next generation smart search engine that can effectively interpret the relevance of user searches and provide the actual information requested. This paper explores whether a smarter Internet search engine can effectively fulfill a user's needs through the use of 6W representations.

Goehler, Stephen; Cader, Masud; Szu, Harold

2006-04-01

93

The Mathematics of Internet Search Engines David Marshall  

E-print Network

reliability of search returns (why?). #12;Internet Keyword Searches Early internet search engines were based solely on keyword searches. Low reliability of search returns (why?). No review process. #12;Internet Keyword Searches Early internet search engines were based solely on keyword searches. Low reliability

Marshall, David

94

World Wide Web Image Search Engines  

Microsoft Academic Search

We propose the development of a world wide web image search engine that crawls the web collecting information about the images it finds, computes the appropriate image decompositions and indices, and stores this extracted infor- mation for searches based on image content. Indexing and searching images need not require solving the image under- standing problem. Instead, the general approach should

Stan Sclaroff

1995-01-01

95

Inquirus, the NECI Meta Search Engine  

Microsoft Academic Search

World Wide Web (WWW) search engines (e.g. AltaVista, Infoseek, HotBot, etc.) have a number of deficiencies including: periods of downtime, low coverage of the WWW, inconsistent and inefficient user interfaces, out of date databases, poor relevancy ranking and precision, and difficulties with spamming techniques. Meta search engines have been introduced which address some of these and other difficulties in searching

Steve Lawrence; C. Lee Giles

1998-01-01

96

Towards Automatic Incorporation of Search Engines into a Large-Scale Metasearch Engine. Web Intelligence Conference  

E-print Network

A metasearch engine supports unified access to multiple component search engines. To build a very large-scale metasearch engine that can access up to hundreds of thousands of component search engines, one major challenge is to incorporate large numbers of autonomous search engines in a highly effective manner. To solve this problem, we propose automatic search engine discovery, automatic search engine connection, and automatic search engine result extraction techniques. Experiments indicate that these techniques are highly effective and efficient.

Zonghuan Wu; Vijay Raghavan; Hua Qian; Vuyyuru Rama K

2003-01-01

97

MetaSEEk: A Content-Based Meta-Search Engine for Images  

Microsoft Academic Search

Search engines are the most powerful resources for finding information on the rapidly expanding World Wide Web (WWW). Finding the desired search engines and learning how to use them, however, can be very time consuming. The integration of such search tools enables the users to access information across the world in a transparent and efficient manner. These systems are called

Mandis Beigi; Ana B. Benitez; Shih-Fu Chang

1997-01-01

98

Fractal Image Process Based Image Comparison Search Engine  

Microsoft Academic Search

A search engine allows users to quickly obtain information from networks. Tradi- tional search engines can only search the data of modal characters. However, when us- ers obtain an image from a newspaper or magazine, they want to retrieve related infor- mation about this type of image through a search engine, traditional search engines are incapable of meeting their needs.

Kuang-fu Li; Tung-shou Chen; Kuei-hao Chen

2003-01-01

99

Modeling Search Engine Effectiveness for Federated Search Luo Si and Jamie Callan  

E-print Network

Modeling Search Engine Effectiveness for Federated Search Luo Si and Jamie Callan School Federated search links multiple search engines into a single, virtual search system. Most prior research of federated search focused on selecting search engines that have the most relevant contents, but ignored

Callan, Jamie

100

Meta Search Engines for Information Retrieval on Multiple Domains  

E-print Network

Abstract: A Web Search Engine searches for information in the World Wide Web. The number of web resources increases every day but the user is often unable to get the exact information due to the different page ranking techniques followed by individual Search Engines. Meta Search Engines solve this problem to a certain level by using more than one search engines. A Vertical Search Engine is used to provide the user with results for queries on a particular domain such as Medical, Insurance and etc. This paper proposes three Multi Domain Meta Search Engines that facilitate efficient Information Retrieval on multiple domains. These Search Engines combines the functionality of both the Meta

D. Minnie; S. Srinivasan

2011-01-01

101

High Ended Web Search Engine Taxonomy Using Concurrent Processing  

E-print Network

Everyone around the world is searching for information. In the Internet world people use web search engine to look for certain topics. Basically, search engines are more helpful for everyone to search their needs such as Google, Yahoo, and AltaVista. Sometimes, searching same topic on different search engine will produce different results. Thus, we have a novel on high ended search engine taxonomy to meet more and clear information. This paper proposes to exercise one or more search key and search engines on single web search.

Bala Dhandayuthapani Veerasamy

102

Federated Search of Text Search Engines in Uncooperative Environments  

E-print Network

i Federated Search of Text Search Engines in Uncooperative Environments Luo Si Language Technology the best in me. Jamie has given me tremendous help on research and life in general. This experience has for proof reading this manuscript. My deep gratitude is due to my parents for their continuous guidance

Eskenazi, Maxine

103

Using Advanced Search Operators on Web Search Engines.  

ERIC Educational Resources Information Center

Studies show that the majority of Web searchers enter extremely simple queries, so a reasonable system design approach would be to build search engines to compensate for this user characteristic. One hundred representative queries were selected from the transaction log of a major Web search service. These 100 queries were then modified using the…

Jansen, Bernard J.

104

Power control for heat engines  

DOEpatents

A power control arrangement for a Stirling engine includes a sleeve mounted in each cylinder for axial movement and a port in the sleeve leading to a dead space. The port is covered by the piston at a position that is determined by the piston position and the axial adjustment of the sleeve. The compression phase of the Stirling cycle for that piston begins when the port is covered, so the position of the sleeve is used to set the Stirling engine power level.

Dineen, John J. (Durham, NH)

1984-01-01

105

The influence of search engines on preferential attachment Alan Frieze  

E-print Network

Abstract There is much current interest in the evolution of social networks, in particular, the Web graph the observed power-law degree distribution of the Web graph reasonably well. However, existing evolution models do not include the significant influence of search engines on how Web page authors find existing

Frieze, Alan

106

Web Search Engines for Polish Information Retrieval: Questions of Search Capabilities and Retrieval Performance  

Microsoft Academic Search

This article examines Polish versions of English language search engines and homegrown Polish search engines. Questions of search capability and retrieval performance are considered. Main emphasis is given to the precision criterion, which is based on relevance judgements for the first 10 matches from each search engine. The overlap of retrieved documents and the response time for each search engine

MAREK SROKA

2000-01-01

107

Evaluating Usability of a Long Query Meta Search Engine  

Microsoft Academic Search

Usability is an important factor for search engine acceptance. This paper examines usability of a long query meta search engine. The engine was designed to accept and process an unlimited size query expressed in natural language. We briefly review current search engine usability research and then apply some of the common metrics to various tasks of the search and retrieval

Isak Taksa; Amanda Spink

2007-01-01

108

Using Genres to Improve Search Engines Vedrana Vidulin  

E-print Network

, search engine, multilabeled classification, web page retrieval 1. INTRODUCTION Modern search engines relyUsing Genres to Improve Search Engines Vedrana Vidulin Jozef Stefan Institute Jamova 39, 1000.gams@ijs.si Abstract Modern search engines are typically queried with keywords, which foremostly convey the topic

LuÂ?trek, Mitja

109

Specialized Search Engines: Alternatives to the Big Guys.  

ERIC Educational Resources Information Center

Discusses specialized search engines for information on specific topics on the Internet. Explains reasons for using specialized search engines; highlights search engines in the fields of health care, legal information, and multimedia formats; and provides Web sites that are helpful in finding other specialized search engines. (LRW)

King, David

2000-01-01

110

Automated Evaluation of Search Engine Performance via Implicit User Feedback  

Microsoft Academic Search

Measuring the information retrieval effectiveness of Web search engines can be expensive if human relevance judgments are required to evaluate search results. Using implicit user feedback for search engine evaluation provides a cost and time effective manner of addressing this problem. Web search engines can use human evaluation of search results without the expense of human evaluators. An additional advantage

Himanshu Sharma; Bernard J. Jansen

2005-01-01

111

A Search Engine for 3D Models  

Microsoft Academic Search

As the number of 3D models available on the Web grows, there is an increasing need for a search engine to help people find them. Unfortunately, traditional text-based search techniques are not always effective for 3D data. In this paper, we investigate new shape-based search methods. The key challenges are to develop query methods simple enough for novice users and

Thomas Funkhouser; Patrick Min; Misha Kazhdan; Joyce Chen; Alex Halderman; David Dobkin; David Jacobs

2002-01-01

112

A search engine for 3D models  

Microsoft Academic Search

As the number of 3D models available on the Web grows, there is an increasing need for a search engine to help people find them. Unfortunately, traditional text-based search techniques are not always effective for 3D data. In this article, we investigate new shape-based search methods. The key challenges are to develop query methods simple enough for novice users and

Thomas A. Funkhouser; Patrick Min; Michael M. Kazhdan; Joyce Chen; Alex Halderman; David P. Dobkin; David Pokrass Jacobs

2003-01-01

113

Search engine for handwritten documents  

NASA Astrophysics Data System (ADS)

Search aspects of a system for analyzing handwritten documents are described. Documents are indexed using global image features, e.g., stroke width, slant as well as local features that describe the shapes of words and characters. Image indexing is done automatically using page analysis, page segmentation, line separation, word segmentation and recognition of words and characters. Two types of search are permitted: search based on global features of entire document and search using features at local level. For the second type of search, i.e., local, all the words in the document are characterized and indexed by various features and it forms the basis of different search techniques. The paper focuses on local search and describes four tasks: word/phrase spotting, text to image, image to text and plain text. Performance in terms of precision/recall and word ranking is reported on a database of handwriting samples from about 1,000 individuals.

Srihari, Sargur N.; Huang, Chen; Srinivasan, Harish

2005-01-01

114

Search engine for handwritten documents  

NASA Astrophysics Data System (ADS)

Search aspects of a system for analyzing handwritten documents are described. Documents are indexed using global image features, e.g., stroke width, slant as well as local features that describe the shapes of words and characters. Image indexing is done automatically using page analysis, page segmentation, line separation, word segmentation and recognition of words and characters. Two types of search are permitted: search based on global features of entire document and search using features at local level. For the second type of search, i.e., local, all the words in the document are characterized and indexed by various features and it forms the basis of different search techniques. The paper focuses on local search and describes four tasks: word/phrase spotting, text to image, image to text and plain text. Performance in terms of precision/recall and word ranking is reported on a database of handwriting samples from about 1,000 individuals.

Srihari, Sargur N.; Huang, Chen; Srinivasan, Harish

2004-12-01

115

Toward Feedback-Based Web Search Engine  

Microsoft Academic Search

The capability to easily find useful information on the Web becomes increasingly difficult as the available content increases. To assist users in finding relevant information Web search engines are developed. Those engines apply different strategies to measure the relevance of a Web page (its rank). However, page ranking is mainly conducted by relying on automatic assessment criteria. Hence, a gap

Mehdi Adda; Rokia Missaoui; Petko Valtchev

2009-01-01

116

Automatically Detecting Boolean Operations Supported by Search Engines, Towards Search Engine Query Language Discovery  

Microsoft Academic Search

Each Web search engine provides query language through which it can communicate with its users and retrieve corresponding results to user queries. Supporting Boolean operations is a major characteristic of the query language. In this paper, we propose a novel, fully automatic, query probing based approach to identify what Boolean operations that are supported by a search engines and their

Zonghuan Wu; Dheerendranath Mundluru; Vijay V. Raghavan

2004-01-01

117

A distributed mobile agent based Web search for adaptive meta search engines  

Microsoft Academic Search

In this paper, the problems of current Web search engines are analyzed, and the need for a new design is justified. Some ideas on how to improve current Web search engines are presented, and then an adaptive method for Web meta-search engines with a multi-agent specially the mobile agents is presented to make search engines work more efficiently. In the

M. Koorangi; K. Zamanifar

2005-01-01

118

Implementing Sponsored Search in Web Search Engines: Computational Evaluation of Alternative Mechanisms  

E-print Network

Implementing Sponsored Search in Web Search Engines: Computational Evaluation of Alternative search results--is now one of the largest and fastest growing source of revenue for Web search engines features. The search engine can address initial inscience of relevance scores by modifying rank allocations

Pennock, David M.

119

Image searching on the Excite Web search engine  

Microsoft Academic Search

A growing body of research is beginning to explore the information-seeking behavior of Web users. The vast majority of these studies have concentrated on the area of textual information retrieval (IR). Little research has examined how people search for non-textual information on the Internet, and few large-scale studies has investigated visual information-seeking behavior with general-purpose Web search engines. This study

Abby Goodrum; Amanda Spink

2001-01-01

120

Diesel engine waste-heat power cycle  

Microsoft Academic Search

This article demonstrates a possibility for increasing the power output from diesel engines and improving the fuel economy for such engines. This is achieved by employing a power cycle which is driven solely by the engine waste-heat in the cooling water and, also, the exhaust gases. For road engines an organic fluid Rankine cycle is employed. R-12 is evaporated in

S. E. Aly

1988-01-01

121

Keynote Talk Search Engine Support for Software Applications  

E-print Network

engine architectures, federated search of groups of search engines, adaptive information filtering, textKeynote Talk Search Engine Support for Software Applications Jamie Callan Language Technologies-answering, computer-assisted language learning, text mining, and other software applications that use a full-search

Callan, Jamie

122

Sentence level fact based search engine: News Fact Finder  

Microsoft Academic Search

Users searching the Internet for news are not able to find relevant fact-based results for certain queries using the major search engines. Queries that require exact substring matching in order to obtain very relevant results are not currently possible. Furthermore, search engines do not discriminate in returning results that are opinions and not quantifiable facts. Our sentence level search engine,

Cristina Ribeiro; Ricardo Salmon; Swathi Amarala; Christina Hamada

2010-01-01

123

The Use of Web Search Engines in Information Science Research.  

ERIC Educational Resources Information Center

Reviews the literature on the use of Web search engines in information science research, including: ways users interact with Web search engines; social aspects of searching; structure and dynamic nature of the Web; link analysis; other bibliometric applications; characterizing information on the Web; search engine evaluation and improvement; and…

Bar-Ilan, Judit

2004-01-01

124

An Exploratory Survey of Student Perspectives Regarding Search Engines  

ERIC Educational Resources Information Center

This study explored college students' perceptions regarding their use of search engines. The main objective was to determine how frequently students used various search engines, whether advanced search features were used, and how many search engines were used. Various factors that might influence student responses were examined. Results showed…

Alshare, Khaled; Miller, Don; Wenger, James

2005-01-01

125

Automated Evaluation of Search Engine Performance via Implicit User Feedback  

E-print Network

Automated Evaluation of Search Engine Performance via Implicit User Feedback Himanshu Sharma the information retrieval effectiveness of Web search engines can be expensive if human relevance judgments are required to evaluate search results. Using implicit user feedback for search engine evaluation provides

Jansen, James

126

An empirical analysis of sponsored search performance in search engine advertising  

Microsoft Academic Search

The phenomenon of sponsored search advertising - where advertisers pay a fee to Internet search engines to be displayed alongside organic (non-sponsored) web search results - is gaining ground as the largest source of revenues for search engines. Despite the growth of search advertising, we have little understanding of how consumers respond to contextual and sponsored search advertising on the

Anindya Ghose; Sha Yang

2008-01-01

127

Efficient query processing in geographic web search engines  

Microsoft Academic Search

Geographic web search engines allow users to constrain and or- der search results in an intuitive manner by focusing a query on a particular geographic region. Geographic search technology, also called local search, has recently received significant interest from major search engine companies. Academic research in this area has focused primarily on techniques for extracting geographic knowl- edge from the

Yen-yu Chen; Torsten Suel; Alexander Markowetz

2006-01-01

128

Chemical Information in Scirus and BASE (Bielefeld Academic Search Engine)  

ERIC Educational Resources Information Center

The author sought to determine to what extent the two search engines, Scirus and BASE (Bielefeld Academic Search Engines), would be useful to first-year university students as the first point of searching for chemical information. Five topics were searched and the first ten records of each search result were evaluated with regard to the type of…

Bendig, Regina B.

2009-01-01

129

An Analysis of Chinese Search Engine Filtering  

E-print Network

The imposition of government mandates upon Internet search engine operation is a growing area of interest for both computer science and public policy. Users of these search engines often observe evidence of censorship, but the government policies that impose this censorship are not generally public. To better understand these policies, we conducted a set of experiments on major search engines employed by Internet users in China, issuing queries against a variety of different words: some neutral, some with names of important people, some political, and some pornographic. We conducted these queries, in Chinese, against Baidu, Google (including google.cn, before it was terminated), Yahoo!, and Bing. We found remarkably aggressive filtering of pornographic terms, in some cases causing non-pornographic terms which use common characters to also be filtered. We also found that names of prominent activists and organizers as well as top political and military leaders, were also filtered in whole or in part. In some ca...

Zhu, Tao; Wallach, Dan S

2011-01-01

130

Automatic performance evaluation of web search engines using judgments of metasearch engines  

Microsoft Academic Search

Purpose – The purpose of this paper is to introduce two new automatic methods for evaluating the performance of search engines. The reported study uses the methods to experimentally investigate which search engine among three popular search engines (Ask.com, Bing and Google) gives the best performance. Design\\/methodology\\/approach – The study assesses the performance of three search engines. For each one

Hamid Sadeghi

2011-01-01

131

“OPENNESS OF SEARCH ENGINE”: A CRITICAL FLAW IN SEARCH SYSTEMS; A CASE STUDY ON  

E-print Network

There is no doubt that Search Engines are playing a great role in Internet usage. But all the top search engines Google, Yahoo and Bing are having a critical flaw called “Openness of a Search Engine”. An Internet user should be allowed to get the search results only when requested through Search engine’s web page but the user must not be allowed to get the search results when requested through any web page that does not belong to the Search Engine. Only results of a search engine should be available to the Internet user but not the Search Engine. This paper explains the critical flaw called “Openness of Search Engine ” with a case study on top 3 search engines ‘Google’, ‘Yahoo ’ and ‘Bing’. This paper conducts an attack based test using J2EE framework and proves that ‘Google ’ passed the test and it strongly protects its Critical Search System, where ‘Yahoo ’ and ‘Bing ’ are failed to protect their Search Engines. But previously ‘Google ’ also had other high severity issues with the Openness of search engine; this paper reveals those issues also. Finally this paper appeals strongly to the all top Search Engines to fix their critical flaws of “Openness of Search Engine”. 1.

Katuru Sm; Kalyana Chakravarthy

132

A NOVEL METADATA BASED META-SEARCH ENGINE  

E-print Network

Meta search engines, collection fusion, metadata. We present a novel meta-search engine called DYNIQX for metadata based cross search in order to study the effect of metadata in collection fusion. DYNIQX exploits the availability of metadata in academic search services such as PubMed and Google Scholar etc for fusing search results from heterogeneous search engines. Furthermore, metadata from these search engines are used for generating dynamic query controls such as sliders and tick boxes etc for users to filter search results. 1

Jianhan Zhu; Dawei Song; Marc Eisenstadt; Cristi Barladeanu

133

Bruce Clay, LLC: Search Engine Optimization  

NSDL National Science Digital Library

Anyone who has ever wondered how online search engines determine the order of appearance of Web sites can learn about the complex process here. Web site ranking is more than a curiosity, however, as it can be very important to companies that depend on online recognition. Therefore, this site is also useful because it contains detailed instructions about how to achieve and maintain a high rank. A series of eleven steps are outlined, which must be endlessly repeated to make sure that a Web site's rank does not slip. Even for people who do not have a Web site, this material provides an interesting glimpse into the dynamics of search engines.

134

Meta Search Engine for Searching Multiple Human Rights Sites  

NSDL National Science Digital Library

Recently unveiled by the Human Rights Library of the University of Minnesota (originally reviewed in the January 5, 1996 Scout Report), this new search engine will be welcomed by researchers and activists in human rights. Searchable by keyword and several optional operators (Boolean, proximity, truncation), the engine retrieves data from any or all of the 23 different rights-related sites that users select. Interestingly, returns are presented "as is" from the source pages (with page header, images, and unique formats) but combined into a single results page. A test search for "Northern Ireland" on four selected sites returned over 40 results. Direct links to the featured databases and, in some cases, their search tips pages are also provided.

135

SAVVYSEARCH: A Metasearch Engine That Learns Which Search Engines to Query  

Microsoft Academic Search

Search engines are among the most successful applications on the Web today. Somany search engines have been created that it is difficult for users to know wherethey are, how to use them and what topics they best address. Meta-search enginesreduce the user burden by dispatching queries to multiple search engines in parallel.The SavvySearch meta-search engine is designed to efficiently query

Adele E. Howe; Daniel Dreilinger

1997-01-01

136

Methods for Measuring Search Engine Performance over Time  

Microsoft Academic Search

This study introduces methods for evaluating search engine performance over a time period. Several measures are defined, which as a whole, describe search engine functionality over time. The use of these measures is illustrated though a specific example.

Judit Bar-ilan

2001-01-01

137

Searching and browsing Linked Data with SWSE: The Semantic Web Search Engine  

Microsoft Academic Search

In this paper, we discuss the architecture and implementation of the Semantic Web Search Engine (SWSE). Following traditional search engine architecture, SWSE consists of crawling, data enhancing, indexing and a user interface for search, browsing and retrieval of information; unlike traditional search engines, SWSE operates over RDF Web data – loosely also known as Linked Data – which implies unique

Aidan Hogan; Andreas Harth; Jürgen Umbrich; Sheila Kinsella; Axel Polleres; Stefan Decker

138

How are we searching the World Wide Web? A comparison of nine search engine transaction logs  

E-print Network

How are we searching the World Wide Web? A comparison of nine search engine transaction logs major Web search engines are essential tools in the quest to locate online information for many people studies of five Web search engines based in the US and Europe. We compare interactions occurring between

Jansen, James

139

Experiences with Selecting Search Engines using MetaSearch Daniel Dreilinger  

E-print Network

Experiences with Selecting Search Engines using Meta­Search Daniel Dreilinger MIT Media Laboratory contained in this document has not been submitted for publication elsewhere. Abstract Search engines on the Internet has been replaced with the problem of knowing where search engines are, what they are designed

Howe, Adele E.

140

How are we searching the World Wide Web? A comparison of nine search engine transaction logs  

Microsoft Academic Search

The Web and especially major Web search engines are essential tools in the quest to locate online information for many people. This paper reports results from research that examines characteristics and changes in Web searching from nine studies of five Web search engines based in the US and Europe. We compare interactions occurring between users and Web search engines from

Bernard J. Jansen; Amanda Spink

2006-01-01

141

Some components of search engines that rank search results need periodic "tune-ups" when  

E-print Network

24 Some components of search engines that rank search results need periodic "tune-ups" when the environment changes. An exception is the search engine Osmot, developed by CS professor Thorsten Joachims, their decisions provide the search engine with training data. The system can leverage user skills to improve

Keinan, Alon

142

Optimizing search engines using clickthrough data  

Microsoft Academic Search

This paper presents an approach to automatically optimizing the retrieval quality of search engines using clickthrough data. Intuitively, a good information retrieval system should present relevant documents high in the ranking, with less relevant documents following below. While previous approaches to learning retrieval functions from examples exist, they typically require training data generated from relevance judgments by experts. This makes

Thorsten Joachims

2002-01-01

143

1 OPTIMIZATION ISSUES IN WEB SEARCH ENGINES  

E-print Network

1 OPTIMIZATION ISSUES IN WEB SEARCH ENGINES Zhen Liu1 and Philippe Nain2 1IBM Research Hawthorne utility for Internet users. According to a recent Pew Foundation Internet and Project (January 2005 terms for crawler, such as wanderer, robot or spider, and the notion of a crawler being `routed to

Nain, Philippe

144

Handling Locations in Search Engine Queries  

Microsoft Academic Search

This paper proposes simple techniques for handling place refer- ences in search engine queries, an important aspect of geographical information retrieval. We address not only the detection, but also the disambiguation of place references, by matching them explic- itly with concepts at an ontology. Moreover, when a query does not reference any locations, we propose to use information from docu-

Bruno Martins; Mário J. Silva; Sérgio Freitas; Ana Paula Afonso

2006-01-01

145

Introducing lateral thinking in search engines  

Microsoft Academic Search

Too much information kills information. This common statement ap- plies to huge databases, where state of the art search engines may retrieve hun- dreds of very similar documents for a precise query. In fact, this is becoming so problematic that Novartis Pharma, one of the leaders of the pharmaceutical industry, has come up with the somewhat odd request to decrease

Yann Landrin-schweitzer; Pierre Collet; Evelyne Lutton

2006-01-01

146

Exploiting Hybrid Parallelism in Web Search Engines  

Microsoft Academic Search

With the emergence of multi-core CPU (or Chip-level Multi- Processor -CMP-), it is essential to develop techniques that capitalize on CMP's advantages to speed up very demanding applications of parallel computing such as Web search engines. In particular, for this application and given the huge amount of computational resources deployed at data centers, it is of paramount importance to come

Carolina Bonacic; Carlos García; Mauricio Marín; Manuel Prieto; Francisco Tirado

2008-01-01

147

Batch query processing for web search engines  

Microsoft Academic Search

Large web search engines are now processing billions of queries per day. Most of these queries are interactive in nature, requiring a response in fractions of a second. However, there are also a number of important scenarios where large batches of queries are submitted for various web mining and system optimization tasks that do not require an immediate response. Given

Shuai Ding; Josh Attenberg; Ricardo A. Baeza-Yates; Torsten Suel

2011-01-01

148

XSEarch: A Semantic Search Engine for XML  

Microsoft Academic Search

XSEarch, a semantic search engine for XML, is presented. XSEarch has a simple query lan- guage, suitable for a naive user. It returns se- mantically related document fragments that satisfy the user's query. Query answers are ranked using extended information-retrieval techniques and are generated in an order sim- ilar to the ranking. Advanced indexing tech- niques were developed to facilitate

Sara Cohen; Jonathan Mamou; Yaron Kanza; Yehoshua Sagiv

2003-01-01

149

Inverted files for text search engines  

Microsoft Academic Search

The technology underlying text search engines has advanced dramatically in the past decade. The development of a family of new index representations has led to a wide range of innovations in index storage, index construction, and query evaluation. While some of these developments have been consolidated in textbooks, many specific techniques are not widely known or the textbook descriptions are

Justin Zobel; Alistair Moffat

2006-01-01

150

Clustering user queries of a search engine  

Microsoft Academic Search

In order to increase retrieval precision, some new search engines provide manually verified answers to Frequently Asked Queries (FAQs). An underlying task is the identification of FAQs. This paper describes our attempt to cluster similar queries according to their contents as well as user logs. Our preliminary results show that the resulting clusters provide useful information for FAQ identification.

Ji-Rong Wen; Jian-Yun Nie; Hong-Jiang Zhang

2001-01-01

151

Quality Dimensions of Internet Search Engines.  

ERIC Educational Resources Information Center

Reviews commonly used search engines (AltaVista, Excite, infoseek, Lycos, HotBot, WebCrawler), focusing on existing comparative studies; considers quality dimensions from the customer's point of view based on a SERVQUAL framework; and groups these quality expectations in five dimensions: tangibles, reliability, responsiveness, assurance, and…

Xie, M.; Wang, H.; Goh, T. N.

1998-01-01

152

Research Trends with Cross Tabulation Search Engine  

ERIC Educational Resources Information Center

To help researchers in building a knowledge foundation of their research fields which could be a time-consuming process, the authors have developed a Cross Tabulation Search Engine (CTSE). Its purpose is to assist researchers in 1) conducting research surveys, 2) efficiently and effectively retrieving information (such as important researchers,…

Yin, Chengjiu; Hirokawa, Sachio; Yau, Jane Yin-Kim; Hashimoto, Kiyota; Tabata, Yoshiyuki; Nakatoh, Tetsuya

2013-01-01

153

Agent Communication within a Search Engine Architecture  

E-print Network

, a search engine dedicated to the web. i-Bot is provided with an agent-based architecture, which is best the information about the web and provides the bots with URL's (Uniform Resource Locator) to retrieve. · Filtering to download HTML pages from the Web. Bots are not mobile agents (that migrate from machine to machine exec #12

López-Sánchez, Maite

154

Transporting submarine engines to power the PRT  

NASA Technical Reports Server (NTRS)

The city of Hampton was unable to supply adequate electric power to operate the PRT. Navy Captain Walter S. Diehl, Bureau of Aeronautics, acquired two 1000 hp submarine engines which were to be disposed of. BuAer 'loaned' the engines to the NACA, one of which is shown here. Next to the engine is Donald H. Wood, a mechanical engineer from Rensselaer Polytechnic Institute and Fred Weick's assistant. Propeller Research Tunnel (PRT) engineer Donald H. Wood ponders the unlikely transfer of a submarine engine from rail car to NACA truck, May 1926. Two such diesel engines powered the PRT.

1926-01-01

155

eBizSearch: a niche search engine for e-business  

Microsoft Academic Search

Niche Search Engines offer an efficient alternative to traditional search engines when the results returned by general-purpose search engines do not provide a sufficient degree of relevance. By taking advantage of their domain of concentration they achieve higher relevance and offer enhanced features. We discuss a new niche search engine, eBizSearch, based on the technology of CiteSeer and dedicated to

C. Lee Giles; Yves Petinot; Pradeep B. Teregowda; Hui Han; Steve Lawrence; Arvind Rangaswamy; Nirmal Pal

2003-01-01

156

A Theoretical and Empirical Evaluation of Software Component Search Engines, Semantic Search Engines and Google Search Engine in the Context of COTS-Based Development  

E-print Network

COTS-based development is a component reuse approach promising to reduce costs and risks, and ensure higher quality. The growing availability of COTS components on the Web has concretized the possibility of achieving these objectives. In this multitude, a recurrent problem is the identification of the COTS components that best satisfy the user requirements. Finding an adequate COTS component implies searching among heterogeneous descriptions of the components within a broad search space. Thus, the use of search engines is required to make more efficient the COTS components identification. In this paper, we investigate, theoretically and empirically, the COTS component search performance of eight software component search engines, nine semantic search engines and a conventional search engine (Google). Our empirical evaluation is conducted with respect to precision and normalized recall. We defined ten queries for the assessed search engines. These queries were carefully selected to evaluate the capability of e...

Yanes, Nacim; Ghezala, Henda Hajjami Ben

2012-01-01

157

Where Do We Put the Web Search Engines?  

ERIC Educational Resources Information Center

Discusses search engines used on the World Wide Web and explains Web-searching principles. Topics include statistics and probability, relevance, weighted terms, precision and recall, monitoring and filtering software, push technology, Boolean operators, metasearch engines, and special features of six main search engines. (LRW)

Feldman, Susan

1998-01-01

158

Automatically Mining Result Records from Search Engine Response Pages  

Microsoft Academic Search

Usually, Web applications such as deep Web crawlers, metasearch engines, and other Web mining systems need to extract information displayed in the form of result records on response pages returned by search engines in response to submitted queries. Extracting such records is challenging as search engines are heterogeneous in displaying their records. In addition, response pages returned by many search

Dheerendranath Mundluru; Jayasimha Reddy Katukuri; Saygin Celebi

2005-01-01

159

An Architecture for Improving Web Search Engine Freshness  

Microsoft Academic Search

Currently, web search engines use crawlers to poll the web servers on a per-URL basis for obtaining update infor- mation. This leads to a cycle time of many weeks before a search engine can revisit a web page. To address this prob- lem, we present the design and implementation of Fresh- Flow an architecture for keeping search engines up-to- date

Vijay Gupta; Roy Campbell

160

An Evaluation of Popular Search Engines on Finding Turkish Documents  

Microsoft Academic Search

This article investigates the information retrieval performance of popular search engines on finding Turkish documents. First of all, five popular search engines (Google, Yahoo, Msn, All the Web and Ask) and a list of Turkish queries are determined. Each query is run on each search engine one by one and first twenty documents on each retrieval output are evaluated as

Rabia Gulcin Demirci; Vildan Kismir; Yiltan Bitirim

2007-01-01

161

Augmenting OAI-PMH Repository Holdings Using Search Engine APIs  

E-print Network

- related web resources, not with focused crawling, but by us- ing the search engine (SE) APIs directly. WeAugmenting OAI-PMH Repository Holdings Using Search Engine APIs Martin Klein, Michael L. Nelson Libraries, Repos- itory Enhancement, Search Engine API 1. INTRODUCTION The NASA ASDC (http

Nelson, Michael L.

162

Efficient Search Engine Measurements Ziv Bar-Yossef  

E-print Network

Efficient Search Engine Measurements Ziv Bar-Yossef Maxim Gurevich July 18, 2010 Abstract We address the problem of externally measuring aggregate functions over documents indexed by search engines for reducing vari- ance in search engine estimators. We show that Rao-Blackwellizing our estimators results

Bar-Yossef, Ziv

163

Search Engine-Crawler Symbiosis: Adapting to Community Interests  

E-print Network

Search Engine-Crawler Symbiosis: Adapting to Community Interests Gautam Pant, Shannon Bradshaw-pant,shannon-bradshaw,filippo-menczer}@uiowa.edu Abstract. Web crawlers have been used for nearly a decade as a search engine component to create and update large collections of documents. Typically the crawler and the rest of the search engine are not closely

Bradshaw, Shannon

164

Mining Test Oracles of Web Search Engines Wujie Zheng1  

E-print Network

Mining Test Oracles of Web Search Engines Wujie Zheng1 , Hao Ma2 , Michael R. Lyu1 , Tao Xie3}@cse.cuhk.edu.hk, haoma@microsoft.com, xie@csc.ncsu.edu Abstract--Web search engines have major impact in people's everyday life. It is of great importance to test the retrieval effectiveness of search engines. However

Xie, Tao

165

Agglomerative clustering of a search engine query log  

Microsoft Academic Search

This paper introduces a technique for mining a collection ofuser transactions with an Internet search engine to discoverclusters of similar queries and similar URLs. The informationwe exploit is "clickthrough data": each record consistsof a user's query to a search engine along with the URLwhich the user selected from among the candidates offeredby the search engine. By viewing this dataset as

Doug Beeferman; Adam L. Berger

2000-01-01

166

Optimizing Search Engines using Clickthrough Data Thorsten Joachims  

E-print Network

Optimizing Search Engines using Clickthrough Data Thorsten Joachims Cornell University Department to automatically optimiz- ing the retrieval quality of search engines using clickthrough data. Intuitively, a good for training, namely the query-log of the search engine in connection with the log of links the users clicked

Keinan, Alon

167

Modeling Score Distributions for Combining the Outputs of Search Engines  

E-print Network

Modeling Score Distributions for Combining the Outputs of Search Engines R. Manmatha, T. Rath and F fits TREC-3 and TREC-4 data for not only probabilistic search engines like INQUERY but also vector space search engines like SMART for English. We have also used this model to fit the output of other

Massachusetts at Amherst, University of

168

Towards A Next-Generation Search Engine Qiang Yang1  

E-print Network

Towards A Next-Generation Search Engine Qiang Yang1 , Hai-Feng Wang, Ji-Rong Wen, Gao Zhang, Ye Lu generations of search engines are mainly keyword-based and cannot satisfy many informational needs. In this paper, we describe the system architecture of a next-generation search engine that we have built

Wang, Haifeng

169

Taming the Information Jungle with WWW Search Engines.  

ERIC Educational Resources Information Center

Because searching the Web with different engines often produces different results, the best strategy is to learn how each engine works. Discusses comparing search engines; qualities to consider (ease of use, relevance of hits, and speed); and six of the most popular search tools (Yahoo, Magellan. InfoSeek, Alta Vista, Lycos, and Excite). Lists…

Repman, Judi; And Others

1997-01-01

170

Search Engines Become Another Unit in Library Skills.  

ERIC Educational Resources Information Center

A high school library media specialist advises teaching search engine skills by incorporating them into existing instructional units. Describes how search engines were introduced in an eighth-grade computer literacy class. Presents class activities, and provides tips for teachers. Includes addresses for eight search engines and three sites…

Talbot, Dixie

1997-01-01

171

Google's PageRank: The Math Behind the Search Engine  

E-print Network

Google's PageRank: The Math Behind the Search Engine Rebecca S. Wills Department of Mathematics on a given day. Even though there are many internet search engines, Google, Yahoo!, and MSN receive over 81 equals that of Google [11], Google continues to thrive as the search engine of choice receiving over 46

Lakoba, Taras I.

172

Text Retrieval Online: Historical Perspective on Web Search Engines.  

ERIC Educational Resources Information Center

Provides an overview of online systems and search engines, highlighting search (relationships between terms and interpretation of words), browse, and Web search engine capabilities, iterative searches, canned or stored queries, vocabulary browsing, delivery of full source documents, simple and advanced user interfaces, and global access. Notes…

Hahn, Trudi Bellardo

1998-01-01

173

iMed: An Intelligent Medical Web Search Engine  

Microsoft Academic Search

Searching for medical information on the Web is becoming popular and important these days. However, medical search has its own unique requirements that are not well handled by existing medical Web search engines. In this paper, we present iMed, the first intelligent medical Web search engine that extensively uses domain-specific medical knowledge and questionnaire to facilitate ordinary Internet users to

Gang Luo

174

Context-aware Querying for Multimodal Search Engines  

E-print Network

Context-aware Querying for Multimodal Search Engines Jonas Etzold1 , Arnaud Brousseau2 , Paul Grimm, and the design of search engines, and also raises the need for extending search tasks beyond textual queries and output of data. In this paper, we present our work in the context of the I-SEARCH project, which aims

Cortes, Corinna

175

Review of electric power engineering education worldwide  

Microsoft Academic Search

The Power Engineering Education Committee sponsored panel session gives an outline of the status of electric power system education in different countries of the world. Graduate and undergraduate electrical power engineering programs typical to a particular country are described. The descriptions include the concepts of graduate and undergraduate education, typical courses and laboratory schedules, tutorials, credits or number of courses

G. G. Karady; G. T. Heydt; M. Michel; P. Crossley; H. Rudnick; S. Iwamoto

1999-01-01

176

14 CFR 121.181 - Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative.  

Code of Federal Regulations, 2013 CFR

...false Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative...181 Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative...person operating a reciprocating engine powered airplane may take off that...

2013-01-01

177

14 CFR 121.181 - Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative.  

Code of Federal Regulations, 2012 CFR

...false Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative...181 Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative...person operating a reciprocating engine powered airplane may take off that...

2012-01-01

178

14 CFR 121.181 - Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative.  

...false Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative...181 Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative...person operating a reciprocating engine powered airplane may take off that...

2014-01-01

179

Sponsored Search Engines in Competition: Advertisers Behavior and Engines Optimal Ranking  

E-print Network

Sponsored Search Engines in Competition: Advertisers Behavior and Engines Optimal Ranking.Tuffin@inria.fr Abstract--Search engines are essential actors for web browsing. We analyze here the economic competition between search engines earning money from adword auctions. We develop a two- level game where

Paris-Sud XI, Université de

180

How to Define Searching Sessions on Web Search Engines  

Microsoft Academic Search

We investigate three methods for defining a session on Web search engines. We examine 2,465,145 interactions from 534,507 Web searchers. We compare defining sessions using: 1) Internet Protocol address and cookie; 2) Internet Protocol address, cookie, and a temporal limit on intra- session interactions; and 3) Internet Protocol address, cookie, and query reformulation patterns. Research results shows that defining sessions

Bernard J. Jansen; Amanda Spink; Vinish Kathuria

2006-01-01

181

Issues confronting power engineering education today  

SciTech Connect

This paper summarizes and publicizes some of the issues currently confronting power engineering education today. The issues are grouped into four general topics. The first topic has the same name as the title of this paper and includes a variety of general issues. The second topic involves the impact of emerging technologies on power engineering education. The third topic involves university research and its funding. The final topic involves philosophical differences about power engineering education from the viewpoint of industry and the university.

Lamont, J.W. (Iowa State Univ. of Science and Technology, Ames, IA (USA)); Alvarado, F.L. (Wisconsin Univ., Madison, WI (USA)); Heydt, G.T. (Purdue Univ., Lafayette, IN (USA)); Saver, P.W. (Illinois Univ., Urbana, IL (USA))

1989-01-01

182

Integrated engine generator for aircraft secondary power  

NASA Technical Reports Server (NTRS)

An integrated engine-generator for aircraft secondary power generation is described. The concept consists of an electric generator located inside a turbojet or turbofan engine and both concentric with and driven by one of the main engine shafts. The electric power conversion equipment and generator controls are located in the aircraft. When properly rated, the generator serves as an engine starter as well as a source of electric power. This configuration reduces or eliminates the need for an external gear box on the engine and permits reduction in the nacelle diameter.

Secunde, R. R.

1972-01-01

183

Towards Automatic Incorporation of Search engines into a Large-Scale Metasearch Engine  

E-print Network

Towards Automatic Incorporation of Search engines into a Large-Scale Metasearch Engine Zonghuan Wu. of Computer Science Univ. of Illinois at Chicago yu@cs.uic.edu Abstract A metasearch engine supports unified access to multiple component search engines. To build a very large-scale metasearch engine that can

Meng, Weiyi

184

Electric power engineering education resources 1993-94: IEEE Power Engineering Society Committee report  

Microsoft Academic Search

This subcommittee report is based on the thirteenth biennial survey of power engineering education resources in the US and Canada, eleven of which have bees previously published. This survey is conducted to determine the electric power engineering education resources available in ABET (Accreditation Board for Engineering and Technology) accredited engineering programs in the US and Canada for the 1993-94 academic

R. L. King; M. E. El-Hawary; M. T. Glinkowski; C. Grigg; C. A. Gross; V. Rajagopalan; T. G. Schmehl; T. S. Sidhu; R. J. Thomas; D. O. Wiitanen; S. M. Yousif

1996-01-01

185

Rethinking Search Engines in Social Network Vision  

Microsoft Academic Search

\\u000a In this chapter we illustrate our vision about the evolution of search engines, dealing with some emerging questions related\\u000a to the social role of the user on the Web and to the actual approach to access the information. In this scenario, is ever\\u000a more evident the need to redefine the information paradigm bringing the information to the user and not

Manuela Angioni; Emanuela De Vita; Cristian Lai; Ivan Marcialis; Gavino Paddeu; Franco G. Tuveri

186

RDF Snippets for Semantic Web Search Engines  

Microsoft Academic Search

Recently, there has been interest in ranking the resources and generating corresponding expressive descriptions from the Semantic\\u000a Web. This paper proposes an approach for automatically generating snippets from RDF documents and assisting users in better\\u000a understanding the content of RDF documents returned by Semantic Web search engines. A heuristic method for discovering topics,\\u000a based on the occurrences of RDF nodes

Xi Bai; Renaud Delbru; Giovanni Tummarello

2008-01-01

187

IEEE POWER ENGINEERING SOCIETY ENERGY DEVELOPMENT AND POWER GENERATION COMMITTEE  

E-print Network

IEEE POWER ENGINEERING SOCIETY ENERGY DEVELOPMENT AND POWER GENERATION COMMITTEE Latin America Sponsored by: International Practices for Energy Development and Power Generation Chairs: Luiz Barroso, PSR utilities (Discos) that buy power supply from generators in both the long term and sport markets. For more

Catholic University of Chile (Universidad Católica de Chile)

188

Query optimizing on a decentralized web search engine  

Microsoft Academic Search

Currently, most web search engines perform search on nearly a whole copy of the web corpus. There are also tools to add search functionality to a single site. Nonetheless, there is little research into search related to online communities: set of related websites or weblogs. To fill this gap, a peer-to-peer search engine is presented in this paper. This p2p

Daze Wang; Ying Zhou; Joseph Davis

2007-01-01

189

Query types and search topics of German Web search engine users  

Microsoft Academic Search

The purpose of this study is to investigate the topics of searches in German Web search engines and the query types used, as well. Based on the query types identified by Broder and the classification of search topics developed by Spink et al., 1500 queries from German search engines Fireball, Seekport and Metager (deduced from log files and live ticker

Dirk Lewandowski

2006-01-01

190

LITERATURE SEARCHES A design, development, or research engineer often must search for information on  

E-print Network

Chapter 43 LITERATURE SEARCHES A design, development, or research engineer often must search search required you to skim through a lot of material, because the classification of that material on the Internet for subscribers to Engineering Information Village.5 In addition, you should search for disserta

191

A World Wide Web Search Engine Using Hyperlink Structure To Improve Web Searches  

E-print Network

­ 1 ­ A World Wide Web Search Engine Using Hyperlink Structure To Improve Web Searches Hong Fan ABSTRACT A World Wide Web Search Engine Using Link Structure To Improve Web Searches Hong Fan Master by Wenchen Hu The World Wide Web is growing rapidly, and as an important new medium for communication

192

Contingency power concepts for helicopter turboshaft engine  

NASA Technical Reports Server (NTRS)

Twin helicopter engines are often sized by power requirement of safe mission completion after the failure of one of the two engines. This study was undertaken for NASA Lewis by General Electric Co. to evaluate the merits of special design features to provide a 2-1/2 minute Contingency Power rating, permitting an engine size reduction. The merits of water injection, cooling flow modulation, throttle push and an auxiliary power plant were evaluated using military life cycle cost (LCC) and commercial helicopter direct operating cost (DOC) merit factors in a rubber engine/rubber aircraft scenario.

Hirschkron, R.; Davis, R. H.; Goldstein, D. N.; Haynes, J. F.; Gauntner, J. W.

1984-01-01

193

14 CFR 121.179 - Airplanes: Reciprocating engine-powered: En route limitations: All engines operating.  

Code of Federal Regulations, 2013 CFR

...Airplanes: Reciprocating engine-powered: En route limitations: All engines operating. 121.179...SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations ...Airplanes: Reciprocating engine-powered: En route...

2013-01-01

194

14 CFR 121.179 - Airplanes: Reciprocating engine-powered: En route limitations: All engines operating.  

Code of Federal Regulations, 2012 CFR

...Airplanes: Reciprocating engine-powered: En route limitations: All engines operating. 121.179...SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations ...Airplanes: Reciprocating engine-powered: En route...

2012-01-01

195

14 CFR 121.179 - Airplanes: Reciprocating engine-powered: En route limitations: All engines operating.  

...Airplanes: Reciprocating engine-powered: En route limitations: All engines operating. 121.179...SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations ...Airplanes: Reciprocating engine-powered: En route...

2014-01-01

196

On optimizing maximum-power heat engines  

NASA Astrophysics Data System (ADS)

For a general class of heat engines operating at maximum power, in which the generic sources of irreversibility are finite-rate heat transfer and friction only, a study is made of (1) the time-dependent driving functions that maximize power when heat input and heat rejection are constrained to be nonisothermal, as is the case in many conventional heat engines, and (2) the specific impact of friction on the nature of the engine cycle that maximizes power, and on the engine's power-efficiency characteristics. The extent to which maximum power is affected by the constraints on the driving function is evaluated, as well as the time divisions on the different branches of the optimal cycle. The fundamental differences in engine performance that arise from frictional losses being internally dissipative, as opposed to externally dissipative, are derived, and illustrative examples are presented.

Gordon, J. M.; Huleihil, Mahmoud

1991-01-01

197

Can an Ad-hoc ontology Beat a Medical Search Engine? The Chronious Search Engine case  

E-print Network

Chronious is an Open, Ubiquitous and Adaptive Chronic Disease Management Platform for Chronic Obstructive Pulmonary Disease(COPD) Chronic Kidney Disease (CKD) and Renal Insufficiency. It consists of several modules: an ontology based literature search engine, a rule based decision support system, remote sensors interacting with lifestyle interfaces (PDA, monitor touch-screen) and a machine learning module. All these modules interact each other to allow the monitoring of two types of chronic diseases and to help clinician in taking decision for care purpose. This paper illustrates how the ontology search engine was created and fed and how some comparative test indicated that the ontology based approach give better results, on some estimation parameters, than the main reference web search engine.

Giacomelli, Piero; Rosso, Roberto

2012-01-01

198

Web Feet Guide to Search Engines: Finding It on the Net.  

ERIC Educational Resources Information Center

This guide to search engines for the World Wide Web discusses selecting the right search engine; interpreting search results; major search engines; online tutorials and guides; search engines for kids; specialized search tools for various subjects; and other specialized engines and gateways. (LRW)

Web Feet, 2001

2001-01-01

199

Determining the User Intent of Web Search Engine Queries  

Microsoft Academic Search

Determining the user intent of Web searches is a difficult problem due to the sparse data available concerning the searcher. In this paper, we examine a method to determine the user intent underlying Web search engine queries. We qualitatively analyze samples of queries from seven transaction logs from three different Web search engines containing more than five million queries. From

Bernard J. Jansen; Danielle L. Booth; Amanda Spink

2007-01-01

200

Tibianna: A Learning-Based Search Engine with Query Refinement  

Microsoft Academic Search

While web search engine technology has improved over time, there is often a fundamental reliance on keyword matching for searches. What happens however, when the user does not know what keywords to use? This paper presents preliminary learning results of a prototype learning search engine that attempts to address this problem. Tibianna allows a user to manually rank a set

Clint Heyer; Joachim Diederich

2002-01-01

201

Building a search engine model with morphological normalization support  

Microsoft Academic Search

Searching a collection of documents can seem like an easy task, but manipulating textual data can be difficult because the data are mostly unstructured. We undertook the task of building an effective search engine for a collection of Croatian legislative documents. The developed search engine model supports multiple modules for information retrieval. To improve the effectiveness of the retrieval, we

Jure Mijic; J. Snajder

2008-01-01

202

The retrieval effectiveness of search engines on navigational queries  

Microsoft Academic Search

Purpose – The purpose of this paper is to test major web search engines on their performance on navigational queries, i.e. searches for homepages. Design\\/methodology\\/approach – In total, 100 user queries are posed to six search engines (Google, Yahoo!, MSN, Ask, Seekport, and Exalead). Users described the desired pages, and the results position of these was recorded. Measured success and

Dirk Lewandowski

2011-01-01

203

Query Recommendation Using Query Logs in Search Engines  

Microsoft Academic Search

In this paper we propose a method that, given a query sub- mitted to a search engine, suggests a list of related queries. The related queries can be issued by the user to the search engine to tune or redirect the search process. The method proposed is based on a query clustering process in which groups of semantically similar queries

Ricardo A. Baeza-yates; Carlos A. Hurtado; Marcelo Mendoza

2004-01-01

204

Predictive caching and prefetching of query results in search engines  

Microsoft Academic Search

We study the caching of query result pages in Web search engines. Popular search engines receive millions of queries per day, and efficient policies for caching query results may enable them to lower their response time and reduce their hardware requirements. We present PDC (probability driven cache), a novel scheme tailored for caching search results, that is based on a

Ronny Lempel; Shlomo Moran

2003-01-01

205

Progress in Documentation: The Evaluation of WWW Search Engines.  

ERIC Educational Resources Information Center

Reviews the literature on Web search engines evaluation, with the aim of identifying some of the issues and problems in this rapidly changing field. Suggests that a standardized set of tools be developed for the evaluation of search engines so comparisons can be made between them more effectively and variations in performance of any given search

Oppenheim, C.; Morris, A.; McKnight, C.; Lowley, S.

2000-01-01

206

Image Comparison Search Engine Based On Traditional and Improved Fractal Encoding Techniques  

Microsoft Academic Search

This search engine allows users to quickly obtain information from networks. Traditional search engines can only search the data of modal characters. To solve this problem, Image Comparison Search Engine (ICSE) makes use of \\

Shraddha Viraj Pandit; M. V. Kulkarni; M. L. Dhore

2009-01-01

207

14 CFR 121.191 - Airplanes: Turbine engine powered: En route limitations: One engine inoperative.  

Code of Federal Regulations, 2010 CFR

...false Airplanes: Turbine engine powered: En route limitations: One engine inoperative...191 Airplanes: Turbine engine powered: En route limitations: One engine inoperative...the approved, one engine inoperative, en route net flight path data in the...

2010-01-01

208

14 CFR 121.193 - Airplanes: Turbine engine powered: En route limitations: Two engines inoperative.  

Code of Federal Regulations, 2010 CFR

...false Airplanes: Turbine engine powered: En route limitations: Two engines inoperative...193 Airplanes: Turbine engine powered: En route limitations: Two engines inoperative...according to the two-engine-inoperative, en route, net flight path data in...

2010-01-01

209

14 CFR 121.191 - Airplanes: Turbine engine powered: En route limitations: One engine inoperative.  

Code of Federal Regulations, 2011 CFR

...false Airplanes: Turbine engine powered: En route limitations: One engine inoperative...191 Airplanes: Turbine engine powered: En route limitations: One engine inoperative...the approved, one engine inoperative, en route net flight path data in the...

2011-01-01

210

14 CFR 121.193 - Airplanes: Turbine engine powered: En route limitations: Two engines inoperative.  

Code of Federal Regulations, 2011 CFR

...false Airplanes: Turbine engine powered: En route limitations: Two engines inoperative...193 Airplanes: Turbine engine powered: En route limitations: Two engines inoperative...according to the two-engine-inoperative, en route, net flight path data in...

2011-01-01

211

Developing an Efficient Model for Evaluating WWW Search Engines  

Microsoft Academic Search

The purpose of the work is to design an efficient methodology for evaluating the performance of public available WWW search engines. The first goal of this procedure is to develop a model representing WWW engines. This objective can only be accomplished by carefully studying the features of each search engine that is examined. This paper presents the methodology developed for

I. Despotopoulos; G. Korinthios; I. Nasios; D. Reisis

1999-01-01

212

Query routing for Web search engines: architecture and experiments  

Microsoft Academic Search

General-purpose search engines such as AltaVista and Lycos are notorious for returning irrelevant results in response to user queries. Consequently, thousands of specialized, topic-specific search engines (from VacationSpot.com to KidsHealth.org) have proliferated on the Web. Typically, topic-specific engines return far better results for \\

Atsushi Sugiura; Oren Etzioni

2000-01-01

213

Result Merging in a Peer-to-Peer Web Search Engine  

Microsoft Academic Search

Abstract A tremendous amount of information in the Internet requires powerful search engines. Currently, only the commercial centralized search engines like Google can process terabytes of Web documents. Such approaches fail in indexing the “Hidden Web” located in the intranets and local databases, and with exponential growth in information volume the situation is becoming even worse. Peer-to-Peer (P2P) systems can

Sergey Chernov

2005-01-01

214

An Empirical Evaluation on Semantic Search Performance of Keyword-Based and Semantic Search Engines: Google, Yahoo, Msn and Hakia  

Microsoft Academic Search

This paper investigates the semantic search performance of search engines. Initially, three keyword-based search engines (Google, Yahoo and Msn) and a semantic search engine (Hakia) were selected. Then, ten queries, from various topics, and four phrases, having different syntax but similar meanings, were determined. After each query was run on each search engine; and each phrase containing a query was

Duygu Tümer; Mohammad Ahmed Shah; Yiltan Bitirim

2009-01-01

215

Cancer Internet Search Activity on a Major Search Engine, United States 2001-2003  

PubMed Central

Background To locate online health information, Internet users typically use a search engine, such as Yahoo! or Google. We studied Yahoo! search activity related to the 23 most common cancers in the United States. Objective The objective was to test three potential correlates of Yahoo! cancer search activity—estimated cancer incidence, estimated cancer mortality, and the volume of cancer news coverage—and to study the periodicity of and peaks in Yahoo! cancer search activity. Methods Yahoo! cancer search activity was obtained from a proprietary database called the Yahoo! Buzz Index. The American Cancer Society's estimates of cancer incidence and mortality were used. News reports associated with specific cancer types were identified using the LexisNexis “US News” database, which includes more than 400 national and regional newspapers and a variety of newswire services. Results The Yahoo! search activity associated with specific cancers correlated with their estimated incidence (Spearman rank correlation, ? = 0.50, P = .015), estimated mortality (? = 0.66, P = .001), and volume of related news coverage (? = 0.88, P < .001). Yahoo! cancer search activity tended to be higher on weekdays and during national cancer awareness months but lower during summer months; cancer news coverage also tended to follow these trends. Sharp increases in Yahoo! search activity scores from one day to the next appeared to be associated with increases in relevant news coverage. Conclusions Media coverage appears to play a powerful role in prompting online searches for cancer information. Internet search activity offers an innovative tool for passive surveillance of health information–seeking behavior. PMID:15998627

Cooper, Crystale Purvis; Mallon, Kenneth P; Leadbetter, Steven; Peipins, Lucy A

2005-01-01

216

OncoSearch: cancer gene search engine with literature evidence  

PubMed Central

In order to identify genes that are involved in oncogenesis and to understand how such genes affect cancers, abnormal gene expressions in cancers are actively studied. For an efficient access to the results of such studies that are reported in biomedical literature, the relevant information is accumulated via text-mining tools and made available through the Web. However, current Web tools are not yet tailored enough to allow queries that specify how a cancer changes along with the change in gene expression level, which is an important piece of information to understand an involved gene's role in cancer progression or regression. OncoSearch is a Web-based engine that searches Medline abstracts for sentences that mention gene expression changes in cancers, with queries that specify (i) whether a gene expression level is up-regulated or down-regulated, (ii) whether a certain type of cancer progresses or regresses along with such gene expression change and (iii) the expected role of the gene in the cancer. OncoSearch is available through http://oncosearch.biopathway.org. PMID:24813447

Lee, Hee-Jin; Dang, Tien Cuong; Lee, Hyunju; Park, Jong C.

2014-01-01

217

Building Domain-Specific Search Engines with Machine Learning Techniques  

Microsoft Academic Search

Domain-specific search engines are growing in popu- larity because they offer increased accuracy and extra functionality not possible with the general, Web-wide search engines. For example, www.campsearch.com allows complex queries by age-group, size, location and cost over .summer camps. Unfortunately these domain-specific search engines are difficult and time- consuming to maintain. This paper proposes the use of machine learning techniques

Andrew McCallum; Kamal Nigam; Jason Rennie; Kristie Seymore

1999-01-01

218

ProFusion*: Intelligent Fusion from Multiple, Distributed Search Engines  

Microsoft Academic Search

The explosive growth of the World Wide Web, and the resulting information overload, has led to a mini-explosion in World Wide Web search engines. This mini-explosion, in turn, led to the development of ProFusion, a meta search engine. Educators, like other users, do not have the time to evaluate multiple search engines to knowledgeably select the best for their uses.

Susan Gauch; Guijun Wang; Mario Gomez

1996-01-01

219

KU Librarian Amalia Monroe develops presidential election search engine  

E-print Network

12/5/13 KU Libraries News: KU Librarian Amalia Monroe develops presidential election search engine www.lib.ku.edu/news/pressearchengine.shtml 1/1 Contact Us Rebecca Smith Director of Communications & Advancement KU Libraries Lawrence, Kansas 66045... to a new KU Libraries search engine. Created by KU Librarian Amalia Monroe, the 2008 Presidential Election Custom Search Engine brings together more than 150 political Web sites selected for their quality, content and non-partisanship. Monroe, who also...

2008-05-06

220

Architecture of a grid-enabled Web search engine  

Microsoft Academic Search

Search Engine for South-East Europe (SE4SEE) is a socio-cultural search engine running on the grid infrastructure. It offers a personalized, on-demand, country-specific, category-based Web search facility. The main goal of SE4SEE is to attack the page freshness problem by performing the search on the original pages residing on the Web, rather than on the previously fetched copies as done in

Berkant Barla Cambazoglu; Evren Karaca; Tayfun Kucukyilmaz; Ata Turk; Cevdet Aykanat

2007-01-01

221

SEReleC (Search Engine Result Refinement and Classification) - a Meta search engine based on combinatorial search and search keyword based link classification  

Microsoft Academic Search

The World Wide Web has immense resources for all kind of people for their specific needs. Searching on the Web using search engines such as Google, Bing, Ask have become an extremely common way of locating information. Searches are factorized by using either term or keyword sequentially or through short sentences. The challenge for the user is to come up

Vishwas Raval; Padam Kumar

2012-01-01

222

Freshness of Web search engines: Improving performance of Web search engines using data mining techniques  

Microsoft Academic Search

Progressive use of Web based information retrieval systems such as general purpose search engines and dynamic nature of the Web make it necessary to continually maintain Web based information retrieval systems. Crawlers facilitate this process by following hyperlinks in Web pages to automatically download new and updated Web pages. Freshness (recency) is one of the important maintaining factors of Web

Sadegh Kharazmi; Ali Farahmand Nejad; Hassan Abolhassani

2009-01-01

223

Department of Biomedical Engineering 2014-15 Faculty Search  

E-print Network

Department of Biomedical Engineering 2014-15 Faculty Search The Department of Biomedical Engineering in the School of Engineering and Applied Science at Washington University in St. Louis invites of Biomedical Engineering was established in 1997 and has rapidly grown to 20 faculty members, >400

von der Heydt, Rüdiger

224

Engine Power Effects on Support Interference  

Microsoft Academic Search

Renewed interest in propeller propulsion on aircraft configurations combined with higher propeller loads lead to the question how the effects of the propulsion on model support disturbances should be accounted for. In this paper, the determination of engine power effects on support interference of sting-mounted models is demonstrated by a measurement on a four-engine turboprop aircraft. CFD results on a

B. J. C. Horsten; L. L. M. Veldhuis

2009-01-01

225

Devising rocket power for smaller engines  

SciTech Connect

Compact, high-power engines that burn fuel and oxygen could be made by winding copper tubing in a helix around boiler sections. With more than 1,000 horsepower per pound of engine weight, liquid-fueled rockets have the highest specific power of any engines designed for sustained operation. Yet those engines generally run for about only 1,000 seconds--nowhere near the sustained operation time for lower-power automotive and aircraft engines of more than 1,000 hours. In theory, at least, a fuel/oxygen rocket can be built that combines the best of both classes: high specific power (from perhaps two to 10 times that of a gas turbine) and a 1,000-hour service life. Such an engine would almost certainly be possible if the rocket`s exhaust gases could be simultaneously cooled and expanded by mixing water with the rocket`s exhaust and boiling it before it reaches the turbine. The technology itself is not new. variations of these rocket-turbine-type engines, for example, powered torpedoes during World War I. Some 30 years later, German V-2 rockets used fuel pumps, driven by the reaction of hydrogen peroxide with hydrocarbon fuels, to produce high-pressure steam that was directed against a turbine. Alternatively, fuel/oxygen combustion could produce steam to drive a piston engine. Either way, the challenge remains to construct a compact, long-service-life, high-specific-power boiler that burns fuel and oxygen. The new type of engine could be derived from recent research on electric vehicles (EVs).

Burruss, R. [GEOMET Technologies Inc., Germantown, MD (United States)

1996-04-01

226

14 CFR 121.181 - Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 false Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative. 121.181 Section...Limitations § 121.181 Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative. (a)...

2010-01-01

227

14 CFR 121.179 - Airplanes: Reciprocating engine-powered: En route limitations: All engines operating.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 false Airplanes: Reciprocating engine-powered: En route limitations: All engines operating. 121.179 Section...Limitations § 121.179 Airplanes: Reciprocating engine-powered: En route limitations: All engines operating. (a) No...

2011-01-01

228

14 CFR 121.181 - Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 false Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative. 121.181 Section...Limitations § 121.181 Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative. (a)...

2011-01-01

229

14 CFR 121.179 - Airplanes: Reciprocating engine-powered: En route limitations: All engines operating.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 false Airplanes: Reciprocating engine-powered: En route limitations: All engines operating. 121.179 Section...Limitations § 121.179 Airplanes: Reciprocating engine-powered: En route limitations: All engines operating. (a) No...

2010-01-01

230

Searching for a New Way to Reach Patrons: A Search Engine Optimization Pilot Project at Binghamton University Libraries  

ERIC Educational Resources Information Center

Search engine use is one of the most popular online activities. According to a recent OCLC report, nearly all students start their electronic research using a search engine instead of the library Web site. Instead of viewing search engines as competition, however, librarians at Binghamton University Libraries decided to employ search engine

Rushton, Erin E.; Kelehan, Martha Daisy; Strong, Marcy A.

2008-01-01

231

How To Do Field Searching in Web Search Engines: A Field Trip.  

ERIC Educational Resources Information Center

Describes the field search capabilities of selected Web search engines (AltaVista, HotBot, Infoseek, Lycos, Yahoo!) and includes a chart outlining what fields (date, title, URL, images, audio, video, links, page depth) are searchable, where to go on the page to search them, the syntax required (if any), and how field search queries are entered.…

Hock, Ran

1998-01-01

232

Power of a Finite Speed Carnot Engine  

ERIC Educational Resources Information Center

A model of an endoreversible Carnot engine is considered where the piston moves with a constant speed "u." Expressions for the cycle time [tau] for the four branches, as well as output power, P[subscript W], are derived and the optimized root for maximum power is obtained in closed form. Our results are discussed in terms of the isothermal…

Agrawal, D. C.; Menon, V. J.

2009-01-01

233

New measurements for search engine evaluation proposed and tested  

Microsoft Academic Search

A set of measurements is proposed for evaluating Web search engine performance. Some measurements are adapted from the concepts of recall and precision, which are commonly used in evaluating traditional information retrieval systems. Others are newly developed to evaluate search engine stability, an issue unique to Web information retrieval systems. An experiment was conducted to test these new measurements by

Liwen Vaughan

2004-01-01

234

MSEEC - A Multi Search Engine with Multiple Clustering  

Microsoft Academic Search

This paper presents a scalable architecture for a multi search engine for web docu- ments with multiple cluster algorithms (MSEEC(12)). Querying search engines in the web may result in an overwhelming amount of matching documents. Clustering tech- niques are used to find a set of similar documents which are presented using a suitable cluster title. The scalable and modular architecture

Peter Hannappel; Reinhold Klapsing; Gustaf Neumann; Adrian Krug

1999-01-01

235

Binary Feature Selection and Integration in Specialized Search Engines  

Microsoft Academic Search

We present a methodology for rapid implementation of specialized search engines. To catalog data, these search engines interpret and classify the content of w eb material to identify different represen- tations of common domain-related elements. While designers can typically develop multiple partial solutions for interpreting the data, acceptable relevance determination requires the appropriate integra- tion of all of these solutions.

Frans Coetzee; Andries Kruger; C. Lee Giles; Steve Lawrence; Gary Flake; Christian W. Omlin

236

An Efficient Clustering Search Engine Using Directory Tree  

Microsoft Academic Search

In this paper, we present a Clustering Search Engine System, called CSES. This system is fundamentally different from traditional search engines, such as GYM (Google, Yahoo!, and MSN), in that GYM presents to the user non- classified web pages whereas CSES provides to the user taxonomic web pages that would greatly help reduce the time required by the user to

Chun-Wei Tsai; Heng-Yao Hsu; Chu-Sing Yang; Ming-Chao Chiang

237

A COLLABORATIVE, SEMANTIC AND CONTEXT AWARE SEARCH ENGINE Position Paper  

Microsoft Academic Search

Search engines help people to find information in the largest public knowledge system of the world: the Web. Unfortunately its size makes very complex to discover the right information. The users are faced lots of useless results forcing them to select one by one the most suitable. The new generation of search engines evolve from keyword-based indexing and classification to

Manuela Angioni; Roberto Demontis; Massimo Deriu; Emanuela De Vita; Cristian Lai; Ivan Marcialis; Gavino Paddeu; Antonio Pintus; Andrea Piras; Raffaella Sanna; Alessandro Soro; Franco Tuveri

238

Locality in Search Engine Queries and Its Implications for Caching  

Microsoft Academic Search

Caching is a popular technique for reducing both server load and user response time in dis- tributed systems. In this paper, we are interested in the question of whether caching might be effective for search engines as well. We study two real search engine traces by examining query locality and its implications for caching. Our trace analysis results show that:

Yinglian Xie; David R. O'hallaron

2002-01-01

239

Methods for Measuring Search Engine Performance over Time.  

ERIC Educational Resources Information Center

Introduces methods for evaluating Web search engine performance over a time period. Describes the necessary setup for such studies, illustrates the use of these measures through a specific example, and recommends the use of the measures as a guideline for testing and improving search engine functionality. (Author/LRW)

Bar-Ilan, Judit

2002-01-01

240

World Wide Web Search Engines 155 World Wide Web  

E-print Network

World Wide Web Search Engines 155 Chapter 10 World Wide Web SearchEngines Wen-Chen Hu Auburn University Jyh-HawYeh Boise State University Copyright © 2003, Idea Group Publishing. ABSTRACT TheWorldWide of them dominate the field. This chapter provides a survey and classification of the available World Wide

Hu, Wen-Chen

241

Brief Report: Consistency of Search Engine Rankings for Autism Websites  

ERIC Educational Resources Information Center

The World Wide Web is one of the most common methods used by parents to find information on autism spectrum disorders and most consumers find information through search engines such as Google or Bing. However, little is known about how the search engines operate or the consistency of the results that are returned over time. This study presents the…

Reichow, Brian; Naples, Adam; Steinhoff, Timothy; Halpern, Jason; Volkmar, Fred R.

2012-01-01

242

Research on Personalized Information Filtering of Search Engine  

NASA Astrophysics Data System (ADS)

Since network has been created and developing rapidly in recent years, the age of information exploding is coming. The Search Engine becomes more and more important for people, but the traditional search engine retrieves and provides information just according to the keywords that users input. How to recommend the right information to users has become the hot point. The technology of personalized information filtering brings people hope .The paper I present analyzed the achievements of those filtering technologies ,and adopted user-system complex-operating modeling to build User-activitycollecting module, User-interest-updating module and User-searching module, in order to meet theme-oriented searching’s needs. Experiments showed that the user-interest model can provide personalized service and enhance search engine’s precision.

Zhang, Shu; Chen, Xinrong; Luo, Changshou

243

The Way to Increased Airplane Engine Power  

NASA Technical Reports Server (NTRS)

The purpose of this paper is to give an outline of the present state of development and point out the possibilities available for the further increase in the power/displacement ratio, the economy, and the reliability of the engine. Some of the aspects discussed are methods of increasing take-off power, the various methods of preparation of the fuel mixture and their effect on power, economy, and safety.

Vohrer, Eugen

1939-01-01

244

Personalized Concept-Based Clustering of Search Engine Queries  

Microsoft Academic Search

A major problem of current Web search is that search queries are usually short and ambiguous, and thus are insufficient for specifying the precise user needs. To alleviate this problem, some search engines suggest terms that are semantically related to the submitted queries so that users can choose from the suggestions the ones that reflect their information needs. In this

Kenneth Wai-ting Leung; Ng Wilfred; Dik Lun Lee

2008-01-01

245

College of Engineering Dean Search Committee Meeting Notes  

E-print Network

College of Engineering Dean Search Committee Meeting Notes May 15, 2014, 11am ENB 109 Members a Search Committee meeting to explain his desired requirements and qualifications for the position. The Chair reported that the search firm is currently reaching out to recruit additional qualified applicants

Meyers, Steven D.

246

A Fuzzy-Match Search Engine for Physician Directories  

PubMed Central

Background A search engine to find physicians’ information is a basic but crucial function of a health care provider’s website. Inefficient search engines, which return no results or incorrect results, can lead to patient frustration and potential customer loss. A search engine that can handle misspellings and spelling variations of names is needed, as the United States (US) has culturally, racially, and ethnically diverse names. Objective The Marshfield Clinic website provides a search engine for users to search for physicians’ names. The current search engine provides an auto-completion function, but it requires an exact match. We observed that 26% of all searches yielded no results. The goal was to design a fuzzy-match algorithm to aid users in finding physicians easier and faster. Methods Instead of an exact match search, we used a fuzzy algorithm to find similar matches for searched terms. In the algorithm, we solved three types of search engine failures: “Typographic”, “Phonetic spelling variation”, and “Nickname”. To solve these mismatches, we used a customized Levenshtein distance calculation that incorporated Soundex coding and a lookup table of nicknames derived from US census data. Results Using the “Challenge Data Set of Marshfield Physician Names,” we evaluated the accuracy of fuzzy-match engine–top ten (90%) and compared it with exact match (0%), Soundex (24%), Levenshtein distance (59%), and fuzzy-match engine–top one (71%). Conclusions We designed, created a reference implementation, and evaluated a fuzzy-match search engine for physician directories. The open-source code is available at the codeplex website and a reference implementation is available for demonstration at the datamarsh website. PMID:25601050

Ye, Zhan; Murali, Narayana

2014-01-01

247

Bibliographical Meta Search Engine for the Retrieval of Scientific Articles  

Microsoft Academic Search

The University of Trier maintains the DBLP (Digital Bibliography & Library Project) Computer Science Bibliography which offers bibliographic information about more than 870.000 scientific publications.\\u000a This paper describes the DBLP WebCrawler, a meta search engine that is able to search for full text publications in PDF format for each DBLP entry on the web. Various\\u000a search engines such as Google

Artur Gajek; Stefan Klink; Patrick Reuther; Bernd Walter; Alexander Weber

2007-01-01

248

A SessionBased Search Engine Smitha Sriram, Xuehua Shen, Chengxiang Zhai  

E-print Network

A Session­Based Search Engine Smitha Sriram, Xuehua Shen, Chengxiang Zhai Department of Computer­based search engine, which puts the search in context. The search engine has a number of session­based features closeness and probabilis­ tic similarity between query terms. In addition, the search engine visualizes

Zhai, ChengXiang

249

On the Precision of Search Engines: Results from a Controlled Experiment  

E-print Network

On the Precision of Search Engines: Results from a Controlled Experiment Hasan Girit, Robert, search engines adopt a key role. Besides conventional search engines such as Google, semantic search engines have emerged as an alternative approach in recent years. The quality of search results delivered

Ulm, Universität

250

Grooker, KartOO, Addict-o-Matic and More: Really Different Search Engines  

ERIC Educational Resources Information Center

There are hundreds of unique search engines in the United States and thousands of unique search engines around the world. If people get into search engines designed just to search particular web sites, the number is in the hundreds of thousands. This article looks at: (1) clustering search engines, such as KartOO (www.kartoo.com) and Grokker…

Descy, Don E.

2009-01-01

251

Biomedical Engineering Faculty Search Herbert Herff Chair of Excellence (II)  

E-print Network

Biomedical Engineering Faculty Search Herbert Herff Chair of Excellence (II) The University/University of Tennessee Health Science Center (UM/UT) Joint Graduate Program in Biomedical Engineering, and to help drive candidates must have a Ph.D. or equivalent degree in Biomedical Engineering or a closely related field

Dasgupta, Dipankar

252

40 CFR 1042.140 - Maximum engine power, displacement, power density, and maximum in-use engine speed.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 false Maximum engine power, displacement, power density, and maximum in-use engine speed. 1042.140 Section...EMISSIONS FROM NEW AND IN-USE MARINE COMPRESSION-IGNITION ENGINES AND VESSELS Emission...

2013-07-01

253

40 CFR 1042.140 - Maximum engine power, displacement, power density, and maximum in-use engine speed.  

Code of Federal Regulations, 2012 CFR

...2012-07-01 false Maximum engine power, displacement, power density, and maximum in-use engine speed. 1042.140 Section...EMISSIONS FROM NEW AND IN-USE MARINE COMPRESSION-IGNITION ENGINES AND VESSELS Emission...

2012-07-01

254

40 CFR 1042.140 - Maximum engine power, displacement, power density, and maximum in-use engine speed.  

...2014-07-01 false Maximum engine power, displacement, power density, and maximum in-use engine speed. 1042.140 Section...EMISSIONS FROM NEW AND IN-USE MARINE COMPRESSION-IGNITION ENGINES AND VESSELS Emission...

2014-07-01

255

40 CFR 1042.140 - Maximum engine power, displacement, power density, and maximum in-use engine speed.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false Maximum engine power, displacement, power density, and maximum in-use engine speed. 1042.140 Section...EMISSIONS FROM NEW AND IN-USE MARINE COMPRESSION-IGNITION ENGINES AND VESSELS Emission...

2011-07-01

256

The infocious web search engine: improving web searching through linguistic analysis  

Microsoft Academic Search

In this paper we present the Infocious Web search engine [23]. Our goal in creating Infocious is to improve the way people find information on the Web by resolving ambiguities present in natural language text. This is achieved by performing linguistic analysis on the content of the Web pages we index, which is a departure from existing Web search engines

Alexandros Ntoulas; Gerald Chao; Junghoo Cho

2005-01-01

257

New Architectures for Presenting Search Results Based on Web Search Engines Users Experience  

ERIC Educational Resources Information Center

Introduction: The Internet is a dynamic environment which is continuously being updated. Search engines have been, currently are and in all probability will continue to be the most popular systems in this information cosmos. Method: In this work, special attention has been paid to the series of changes made to search engines up to this point,…

Martinez, F. J.; Pastor, J. A.; Rodriguez, J. V.; Lopez, Rosana; Rodriguez, J. V., Jr.

2011-01-01

258

Optimal Threshold Control by the Robots of Web Search Engines with Obsolescence of Documents  

E-print Network

Optimal Threshold Control by the Robots of Web Search Engines with Obsolescence of Documents A typical Web Search Engine consists of three principal parts: crawling engine, indexing engine, and searching engine. The present work aims to optimize the performance of the crawling engine. The crawling

Paris-Sud XI, Université de

259

Social media networking: YouTube and search engine optimization.  

PubMed

This is the third part of a three-part article on social media networking. This installment will focus on YouTube and search engine optimization. This article will explore the application of YouTube to the medical practice and how YouTube can help a practice retain its existing patients and attract new patients to the practice. The article will also describe the importance of search engine optimization and how to make your content appear on the first page of the search engines such as Google, Yahoo, and YouTube. PMID:21506470

Jackson, Rem; Schneider, Andrew; Baum, Neil

2011-01-01

260

Shuttle Engine Designs Revolutionize Solar Power  

NASA Technical Reports Server (NTRS)

The Space Shuttle Main Engine was built under contract to Marshall Space Flight Center by Rocketdyne, now part of Pratt & Whitney Rocketdyne (PWR). PWR applied its NASA experience to solar power technology and licensed the technology to Santa Monica, California-based SolarReserve. The company now develops concentrating solar power projects, including a plant in Nevada that has created 4,300 jobs during construction.

2014-01-01

261

14 CFR 121.193 - Airplanes: Turbine engine powered: En route limitations: Two engines inoperative.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 false Airplanes: Turbine engine powered: En route limitations: Two engines inoperative...121.193 Airplanes: Turbine engine powered: En route limitations: Two engines inoperative...No person may operate a turbine engine powered airplane along an intended route...

2012-01-01

262

14 CFR 121.193 - Airplanes: Turbine engine powered: En route limitations: Two engines inoperative.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 false Airplanes: Turbine engine powered: En route limitations: Two engines inoperative...121.193 Airplanes: Turbine engine powered: En route limitations: Two engines inoperative...No person may operate a turbine engine powered airplane along an intended route...

2013-01-01

263

14 CFR 121.193 - Airplanes: Turbine engine powered: En route limitations: Two engines inoperative.  

...2014-01-01 false Airplanes: Turbine engine powered: En route limitations: Two engines inoperative...121.193 Airplanes: Turbine engine powered: En route limitations: Two engines inoperative...No person may operate a turbine engine powered airplane along an intended route...

2014-01-01

264

Automated Power Assessment for Helicopter Turboshaft Engines  

NASA Technical Reports Server (NTRS)

An accurate indication of available power is required for helicopter mission planning purposes. Available power is currently estimated on U.S. Army Blackhawk helicopters by performing a Maximum Power Check (MPC), a manual procedure performed by maintenance pilots on a periodic basis. The MPC establishes Engine Torque Factor (ETF), an indication of available power. It is desirable to replace the current manual MPC procedure with an automated approach that will enable continuous real-time assessment of available power utilizing normal mission data. This report presents an automated power assessment approach which processes data currently collected within helicopter Health and Usage Monitoring System (HUMS) units. The overall approach consists of: 1) a steady-state data filter which identifies and extracts steady-state operating points within HUMS data sets; 2) engine performance curve trend monitoring and updating; and 3) automated ETF calculation. The algorithm is coded in MATLAB (The MathWorks, Inc.) and currently runs on a PC. Results from the application of this technique to HUMS mission data collected from UH-60L aircraft equipped with T700-GE-701C engines are presented and compared to manually calculated ETF values. Potential future enhancements are discussed.

Simon, Donald L.; Litt, Jonathan S.

2008-01-01

265

IGroup: a web image search engine with semantic clustering of search results  

Microsoft Academic Search

In this demo, we present IGroup, a Web image search engine that organizes the search results into semantic clusters. Different from all existing Web image search results clustering algorithms that only cluster the top few images using visual or textual features, IGroup first identifies several query-related semantic clusters based on a key phrases extraction algorithm originally proposed for clustering general

Feng Jing; Changhu Wang; Yuhuan Yao; Kefeng Deng; Lei Zhang; Wei-ying Ma

2006-01-01

266

Adding to the Students' Toolbox: Using Directories, Search Engines, and the Hidden Web in Search Processes.  

ERIC Educational Resources Information Center

Discussion of searching for information on the Web focuses on resources that are not always found by traditional Web searches. Describes sources on the hidden Web, including full-text databases, clearinghouses, digital libraries, and learning objects; explains how search engines operate; and suggests that traditional print sources are still…

Mardis, Marcia A.

2002-01-01

267

The VocalSearch Music Search Engine Bryan Pardo, David Little, Rui Jiang, Hagai Livni, Jinyu Han  

E-print Network

queries, queries entered as music notation, and text-based lyrics search. Users are also ableThe VocalSearch Music Search Engine Bryan Pardo, David Little, Rui Jiang, Hagai Livni, Jinyu Han@gmail.com ABSTRACT The VocalSearch system is a music search engine developed at Northwestern University and available

Pardo, Bryan

268

LAILAPS: The Plant Science Search Engine  

PubMed Central

With the number of sequenced plant genomes growing, the number of predicted genes and functional annotations is also increasing. The association between genes and phenotypic traits is currently of great interest. Unfortunately, the information available today is widely scattered over a number of different databases. Information retrieval (IR) has become an all-encompassing bioinformatics methodology for extracting knowledge from complex, heterogeneous and distributed databases, and therefore can be a useful tool for obtaining a comprehensive view of plant genomics, from genes to traits. Here we describe LAILAPS (http://lailaps.ipk-gatersleben.de), an IR system designed to link plant genomic data in the context of phenotypic attributes for a detailed forward genetic research. LAILAPS comprises around 65 million indexed documents, encompassing >13 major life science databases with around 80 million links to plant genomic resources. The LAILAPS search engine allows fuzzy querying for candidate genes linked to specific traits over a loosely integrated system of indexed and interlinked genome databases. Query assistance and an evidence-based annotation system enable time-efficient and comprehensive information retrieval. An artificial neural network incorporating user feedback and behavior tracking allows relevance sorting of results. We fully describe LAILAPS’s functionality and capabilities by comparing this system’s performance with other widely used systems and by reporting both a validation in maize and a knowledge discovery use-case focusing on candidate genes in barley. PMID:25480116

Esch, Maria; Chen, Jinbo; Colmsee, Christian; Klapperstück, Matthias; Grafahrend-Belau, Eva; Scholz, Uwe; Lange, Matthias

2015-01-01

269

StreetEYE: Wall St. Search Engine  

NSDL National Science Digital Library

StreetEYE attempts to bring together every important investment and financial resource on the Internet into a neatly arranged structure, organized by topic and subtopic, and supplemented by a search engine. The frames-based main page provides a consistent, easily navigated front end for browsing resources. An alternate main page presents the same information in tabular form for those without frame capability. The news and quotes & graphs pages provide links to sites offering both up-to-the-minute and archival data. The exchanges page lists many of the world's financial markets, with links to details about brokers, banks, investment managers, and other market participants. Users will also find information about government and commercial information providers, nonprofit institutions, and other financial resources. Individual investors can browse a collection of personal finance topics, as well as selected non-financial resources. The entries in each listing are arranged by topic, but are not annotated with information about what the user will find at individual sites. Even if you're already using the Internet to gather investment information, this site will help you to keep up with current offerings.

270

14 CFR 135.373 - Part 25 transport category airplanes with four or more engines: Reciprocating engine powered: En...  

Code of Federal Regulations, 2011 CFR

...airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative. 135.373 Section...airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative. (a) No...

2011-01-01

271

14 CFR 121.183 - Part 25 airplanes with four or more engines: Reciprocating engine powered: En route limitations...  

Code of Federal Regulations, 2010 CFR

...airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative. 121.183 Section...airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative. (a) No...

2010-01-01

272

14 CFR 121.183 - Part 25 airplanes with four or more engines: Reciprocating engine powered: En route limitations...  

Code of Federal Regulations, 2011 CFR

...airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative. 121.183 Section...airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative. (a) No...

2011-01-01

273

14 CFR 135.373 - Part 25 transport category airplanes with four or more engines: Reciprocating engine powered: En...  

Code of Federal Regulations, 2010 CFR

...airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative. 135.373 Section...airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative. (a) No...

2010-01-01

274

Research on Personalized Information Filtering of Search Engine  

NASA Astrophysics Data System (ADS)

Since network has been created and developing rapidly in recent years, the age of information exploding is coming. The Search Engine becomes more and more important for people, but the traditional search engine retrieves and provides information just according to the keywords that users input. How to recommend the right information to users has become the hot point. The technology of personalized information filtering brings people hope .The paper I present analyzed the achievements of those filtering technologies ,and adopted user-system complex-operating modeling to build User-activitycollecting module, User-interest-updating module and User-searching module, in order to meet theme-oriented searching's needs. Experiments showed that the user-interest model can provide personalized service and enhance search engine's precision.

Zhang, Shu; Chen, Xinrong; Luo, Changshou

275

Real-time earthquake monitoring using a search engine method  

NASA Astrophysics Data System (ADS)

When an earthquake occurs, seismologists want to use recorded seismograms to infer its location, magnitude and source-focal mechanism as quickly as possible. If such information could be determined immediately, timely evacuations and emergency actions could be undertaken to mitigate earthquake damage. Current advanced methods can report the initial location and magnitude of an earthquake within a few seconds, but estimating the source-focal mechanism may require minutes to hours. Here we present an earthquake search engine, similar to a web search engine, that we developed by applying a computer fast search method to a large seismogram database to find waveforms that best fit the input data. Our method is several thousand times faster than an exact search. For an Mw 5.9 earthquake on 8 March 2012 in Xinjiang, China, the search engine can infer the earthquake’s parameters in <1?s after receiving the long-period surface wave data.

Zhang, Jie; Zhang, Haijiang; Chen, Enhong; Zheng, Yi; Kuang, Wenhuan; Zhang, Xiong

2014-12-01

276

Real-time earthquake monitoring using a search engine method.  

PubMed

When an earthquake occurs, seismologists want to use recorded seismograms to infer its location, magnitude and source-focal mechanism as quickly as possible. If such information could be determined immediately, timely evacuations and emergency actions could be undertaken to mitigate earthquake damage. Current advanced methods can report the initial location and magnitude of an earthquake within a few seconds, but estimating the source-focal mechanism may require minutes to hours. Here we present an earthquake search engine, similar to a web search engine, that we developed by applying a computer fast search method to a large seismogram database to find waveforms that best fit the input data. Our method is several thousand times faster than an exact search. For an Mw 5.9 earthquake on 8 March 2012 in Xinjiang, China, the search engine can infer the earthquake's parameters in <1?s after receiving the long-period surface wave data. PMID:25472861

Zhang, Jie; Zhang, Haijiang; Chen, Enhong; Zheng, Yi; Kuang, Wenhuan; Zhang, Xiong

2014-01-01

277

Real-time earthquake monitoring using a search engine method  

PubMed Central

When an earthquake occurs, seismologists want to use recorded seismograms to infer its location, magnitude and source-focal mechanism as quickly as possible. If such information could be determined immediately, timely evacuations and emergency actions could be undertaken to mitigate earthquake damage. Current advanced methods can report the initial location and magnitude of an earthquake within a few seconds, but estimating the source-focal mechanism may require minutes to hours. Here we present an earthquake search engine, similar to a web search engine, that we developed by applying a computer fast search method to a large seismogram database to find waveforms that best fit the input data. Our method is several thousand times faster than an exact search. For an Mw 5.9 earthquake on 8 March 2012 in Xinjiang, China, the search engine can infer the earthquake’s parameters in <1?s after receiving the long-period surface wave data. PMID:25472861

Zhang, Jie; Zhang, Haijiang; Chen, Enhong; Zheng, Yi; Kuang, Wenhuan; Zhang, Xiong

2014-01-01

278

Entity-Based Classification of Web Page in Search Engine  

Microsoft Academic Search

There are several difficulties in integrating traditional classification approaches in a search engine. This paper presents\\u000a an Entity-Based Web Page Classification Algorithm, which can be embedded in search engine easily. In the algorithm, we build\\u000a up an Entity System to classify web pages immediately before indexing jobs. It is an assistant system used in text feature\\u000a selection and can be

Yicen Liu; Mingrong Liu; Liang Xiang; Qing Yang

2008-01-01

279

The Theory of Planned Behaviour Applied to Search Engines as a Learning Tool  

ERIC Educational Resources Information Center

Search engines have been developed for helping learners to seek online information. Based on theory of planned behaviour approach, this research intends to investigate the behaviour of using search engines as a learning tool. After factor analysis, the results suggest that perceived satisfaction of search engine, search engines as an information…

Liaw, Shu-Sheng

2004-01-01

280

Discovery of Similarity Computations of Search Engines \\Lambda KingLup Liu  

E-print Network

Discovery of Similarity Computations of Search Engines \\Lambda King­Lup Liu School of CTI De to determine the similarities of text documents to a query due to a search engine are: (1) a global search engine, con­ structed on top of a group of local search engines, wishes to retrieve the set of local

Meng, Weiyi

281

Adaptation of Uniqueness Metric (SeRUM) to enhance analogous patents search engine and innovation acceleration  

E-print Network

Adaptation of Uniqueness Metric (SeRUM) to enhance analogous patents search engine and innovation of innovation. The analogous patent search engine "Analogy Finder", created by Dr. Anthony McCaffrey, enables engineers to search the patent database more accurately. The search engine uses a standardized syntax

Mountziaris, T. J.

282

Fully Automatic Wrapper Generation For Search Engines Hongkun Zhao, Weiyi Meng  

E-print Network

Fully Automatic Wrapper Generation For Search Engines Hongkun Zhao, Weiyi Meng Dept. of Computer, IL 60607, USA yu@cs.uic.edu ABSTRACT When a query is submitted to a search engine, the search engine information irrelevant to the query, such as information related to the hosting site of the search engine

Meng, Weiyi

283

Evaluate and Compare Chinese Internet Search Engines Based on Users' Experience  

Microsoft Academic Search

The performance and capabilities of Web search engines is an important and significant area of research. Millions of Chinese people use Web search engines every day. This paper describes the evaluation of three Chinese search engines based on human judgments. As a case study, three popular Chinese search engines are examined. We develop an online tool to assist human evaluation.

Haiquan Long; Benfu Lv; Tianbo Zhao; Ying Liu

2007-01-01

284

Jobs and Internships Search Engine: How to Find What You Want April 2012  

E-print Network

for basic tips. What follows is a recommended search method. You might prefer to use the engine in other1 Jobs and Internships Search Engine: How to Find What You Want April 2012 Here are the main things you need to know about Going Global's Jobs and Internships search engine: The search engine

285

Orion: A Software Project Search Engine with Integrated Diverse Software Artifacts  

E-print Network

Orion: A Software Project Search Engine with Integrated Diverse Software Artifacts Tegawend´e F with the capabilities of existing search systems. We propose Orion, an integrated search engine architecture an experiment with 10 search scenarios to compare Orion with traditional search engines, and explore the need

Paris-Sud XI, Université de

286

Brand and its Effect on User Perception of Search Engine Performance  

E-print Network

Brand and its Effect on User Perception of Search Engine Performance Bernard J. Jansen and Mimi investigate the effect of search engine brand on the evaluation of searching performance. Our research is motivated by the large amount of search traf- fic directed to a handful of Web search engines, even though

Jansen, James

287

Snoogle: A Search Engine for Pervasive Environments  

E-print Network

retrieval (IR) has been widely used to search for information1 within databases. People can use search are considered as the representatives of the physical objects they are attached to, naturally form a database of the physical world. New techniques for searching information in such a database are necessary. Information

Li, Qun

288

ACE: Improving Search Engines via Automatic Concept Extraction  

Microsoft Academic Search

The proliferation of the internet has caused the process of browsing and searching for information to become extremely cumbersome. While many search engines provide reasonable information, they still fall short by overwhelming users with a multitude of often irrelevant results. This problem has several causes but most notably is the inability for the user to be able to convey the

Paul M. Ramirez; Chris A. Mattmann

2004-01-01

289

Paying Your Way to the Top: Search Engine Advertising.  

ERIC Educational Resources Information Center

Explains how organizations can buy listings on major Web search engines, making it the fastest growing form of advertising. Highlights include two network models, Google and Overture; bidding on phrases to buy as links to use with ads; ad ranking; benefits for small businesses; and paid listings versus regular search results. (LRW)

Scott, David M.

2003-01-01

290

Analysis of a very large web search engine query log  

Microsoft Academic Search

In this paper we present an analysis of an AltaVista Search Engine query log consisting of approximately 1 billion entries for search requests over a period of six weeks. This represents almost 285 million user sessions, each an attempt to fill a single information need. We present an analysis of individual queries, query duplication, and query sessions. We also present

Craig Silverstein; Hannes Marais; Monika Henzinger; Michael Moricz

1999-01-01

291

Image and Video Search Engine for the World Wide Web  

Microsoft Academic Search

We describe a visual information system prototype for searching for images and videos on the WorldWide Web. New visual information in the form of images, graphics, animations and videos is being published on the Web at an incredible rate. However, cataloging this visual data is beyond the capabilities of current text-based Web search engines. In this paper, we describe a

John R. Smith; Shih-Fu Chang

1997-01-01

292

The SPIRIT Spatial Search Engine: Architecture, Ontologies and Spatial Indexing  

Microsoft Academic Search

The SPIRIT search engine provides a test bed for the de- velopment of web search technology that is specialised for access to ge- ographical information. Major components include the user interface, geographical ontology, maintenance and retrieval functions for a test col- lection of web documents, textual and spatial indexes, relevance ranking and metadata extraction. Here we summarise the functionality and

Christopher B. Jones; Alia I. Abdelmoty; David Finch; Gaihua Fu; Subodh Vaid

2004-01-01

293

How Safe Are Kid-Safe Search Engines?  

ERIC Educational Resources Information Center

Examines search tools available to elementary and secondary school students, both human-compiled and crawler-based, to help direct them to age-appropriate Web sites; analyzes the procedures of search engines labeled family-friendly or kid safe that use filters; and tests the effectiveness of these services to students in school libraries. (LRW)

Masterson-Krum, Hope

2001-01-01

294

Modeling Long-Term Search Engine Usage Ryen W. White, Ashish Kapoor, and Susan T. Dumais  

E-print Network

Modeling Long-Term Search Engine Usage Ryen W. White, Ashish Kapoor, and Susan T. Dumais Microsoft engines are key components in the online world and the choice of search engine is an important determinant search engine usage. In particular, we study the engine usage behavior of more than ten thousand users

Dumais, Susan

295

DYNIQX: A novel meta-search engine for metadata based cross search Jianhan Zhu, Dawei Song, Marc Eisenstadt, Cristi Barladeanu, Stefan Rger  

E-print Network

DYNIQX: A novel meta-search engine for metadata based cross search Jianhan Zhu, Dawei Song, Marc meta-search engine called Dyniqx for metadata based cross search. Dyniqx exploits the availability heterogeneous search engines. In addition, metadata from these search engines are used for generating dynamic

Zhu, Jianhan

296

"openness of search engine": A critical flaw in search systems; a case study on google, yahoo and bing  

E-print Network

There is no doubt that Search Engines are playing a great role in Internet usage. But all the top search engines Google, Yahoo and Bing are having a critical flaw called "Openness of a Search Engine". An Internet user should be allowed to get the search results only when requested through Search engine's web page but the user must not be allowed to get the search results when requested through any web page that does not belong to the Search Engine. Only results of a search engine should be available to the Internet user but not the Search Engine. This paper explains the critical flaw called "Openness of Search Engine" with a case study on top 3 search engines 'Google', 'Yahoo' and 'Bing'. This paper conducts an attack based test using J2EE framework and proves that 'Google' passed the test and it strongly protects its Critical Search System, where 'Yahoo' and 'Bing' are failed to protect their Search Engines. But previously 'Google' also had other high severity issues with the Openness of search engine; this ...

Chakravarthy, Katuru SM Kalyana

2012-01-01

297

FPGA-based Accelerator Design for RankBoost in Web Search Engines  

Microsoft Academic Search

Search relevance is a key measurement for the usefulness of search engines. Shift of search relevance among search engines can easily change a search company's market cap by tens of billions of dollars. With the ever-increasing scale of the Web, machine learning technologies have become important tools to improve search relevance ranking. RankBoost is a promising algorithm in this area,

Ning-Yi Xu; Xiong-Fei Cai; Rui Gao; Lei Zhang; Feng-Hsiung Hsu

2007-01-01

298

A Task-oriented Approach to Search Engine Usability Studies  

Microsoft Academic Search

Usability is a multi-dimensional characteristic of a computer system. This paper focuses on usability as a measurement of interaction between the user and the system. The research employs a task-oriented approach to evaluate the usability of a meta search engine. This engine encourages and accepts queries of unlimited size expressed in natural language. A variety of conventional metrics developed by

Isak Taksa; Amanda Spink; Robert Goldberg

2008-01-01

299

Comparative evaluation of web search engines in health information retrieval  

Microsoft Academic Search

Purpose – The intent of this work is to evaluate several generalist and health-specific search engines for retrieval of health information by consumers: to compare the retrieval effectiveness of these engines for different types of clinical queries, medical specialties and condition severity; and to compare the use of evaluation metrics for binary relevance scales and for graded ones. Design\\/methodology\\/approach –

Carla Teixeira Lopes; Cristina Ribeiro

2011-01-01

300

NEW FACULTY SEARCHES IN MECHANICAL ENGINEERING  

E-print Network

3 Evaluation of Oxydiesel as a Fuel for Direct-Injection Compression- Ignition Engines Final Report engines. Its potential benefits are both economic and environmental. Reduced harmful emissions can to evaluate this oxydiesel fuel for diesel engines that would be commonly used with commercial carriers

301

An advanced search engine for patent analytics in medicinal chemistry.  

PubMed

Patent collections contain an important amount of medical-related knowledge, but existing tools were reported to lack of useful functionalities. We present here the development of TWINC, an advanced search engine dedicated to patent retrieval in the domain of health and life sciences. Our tool embeds two search modes: an ad hoc search to retrieve relevant patents given a short query and a related patent search to retrieve similar patents given a patent. Both search modes rely on tuning experiments performed during several patent retrieval competitions. Moreover, TWINC is enhanced with interactive modules, such as chemical query expansion, which is of prior importance to cope with various ways of naming biomedical entities. While the related patent search showed promising performances, the ad-hoc search resulted in fairly contrasted results. Nonetheless, TWINC performed well during the Chemathlon task of the PatOlympics competition and experts appreciated its usability. PMID:22874181

Pasche, Emilie; Gobeill, Julien; Teodoro, Douglas; Gaudinat, Arnaud; Vishnykova, Dina; Lovis, Christian; Ruch, Patrick

2012-01-01

302

Building Blocks for Semantic Search Engines  

E-print Network

context) such that · w is a mention of entity e · "Carl Sagan" or "Sagan" is a mention of the concept.g. Born in New York in 1934 , Sagan was a noted astronomer whose lifelong passion was searchingDigit isDDDD Where was Sagan born? type=region NEAR "Sagan" Name a physicist who searched for intelligent

Baeza-Yates, Ricardo

303

Internet Power Searching: Finding Pearls in a Zillion Grains of Sand.  

ERIC Educational Resources Information Center

Discusses searching on the World Wide Web. Highlights include search-engine size; features of the six largest search engines; features of five metasearch engines; intelligent agents; two Web sites for difficult-to-find information, including industry statistics and market data; Internet publishers and databases; specialty search engines; and…

Kassel, Amelia

1999-01-01

304

Search Result Merging and Ranking Strategies in Meta-Search Engines: A Survey  

E-print Network

MetaSearch is utilizing multiple other search systems to perform simultaneous search. A MetaSearch Engine (MSE) is a search system that enables MetaSearch. To perform a MetaSearch, user query is sent to multiple search engines; once the search results returned, they are received by the MSE, then merged into a single ranked list and the ranked list is presented to the user. When a query is submitted to a MSE, decisions are made with respect to the underlying search engines to be used, what modifications will be made to the query and how to score the results. These decisions are typically made by considering only the user’s keyword query, neglecting the larger information need. The cornerstone of their technology is their rank aggregation method. In other words, Result merging is a key component in a MSE. The effectiveness of a MSE is closely related to the result merging algorithm it employs. In this paper, we want to investigate a variety of result merging methods based on a wide range of available information about the retrieved results, from their local ranks, their titles and snippets, to the full documents of these results.

Hossein Jadidoleslamy

305

14 CFR 135.383 - Large transport category airplanes: Turbine engine powered: En route limitations: Two engines...  

Code of Federal Regulations, 2011 CFR

...category airplanes: Turbine engine powered: En route limitations: Two engines inoperative...category airplanes: Turbine engine powered: En route limitations: Two engines inoperative...according to the two-engine-inoperative, en route, net flight path data in...

2011-01-01

306

14 CFR 135.383 - Large transport category airplanes: Turbine engine powered: En route limitations: Two engines...  

Code of Federal Regulations, 2010 CFR

...category airplanes: Turbine engine powered: En route limitations: Two engines inoperative...category airplanes: Turbine engine powered: En route limitations: Two engines inoperative...according to the two-engine-inoperative, en route, net flight path data in...

2010-01-01

307

14 CFR 135.381 - Large transport category airplanes: Turbine engine powered: En route limitations: One engine...  

Code of Federal Regulations, 2011 CFR

...category airplanes: Turbine engine powered: En route limitations: One engine inoperative...category airplanes: Turbine engine powered: En route limitations: One engine inoperative...the approved, one engine inoperative, en route net flight path data in the...

2011-01-01

308

14 CFR 135.381 - Large transport category airplanes: Turbine engine powered: En route limitations: One engine...  

Code of Federal Regulations, 2010 CFR

...category airplanes: Turbine engine powered: En route limitations: One engine inoperative...category airplanes: Turbine engine powered: En route limitations: One engine inoperative...the approved, one engine inoperative, en route net flight path data in the...

2010-01-01

309

Guidelines for Web Search Engines: From Searching and Filtering to Interface  

Microsoft Academic Search

In this paper we address a set of important guidelines that web search engines should follow in order to become effective.\\u000a We refer to the importance of semantic web in the section of search engines which comes up from the better set-up that ontologies\\u000a offer. Moreover, some of the most known and adaptive learning techniques are described in order to

Markos Papoutsidakis; Stavroula Sampati; Ioannis Ledakis; Afroditi Sotiropoulou; Stavros Giannopoulos

2007-01-01

310

Solar System object image search: A precovery search engine  

NASA Astrophysics Data System (ADS)

While regular archive searches can find images at a fixed location, they cannot find images of moving targets such as asteroids or comets. The Solar System Object Image Search (SSOIS) at the Canadian Astronomy Data Centre allows users to search for images of moving objects, allowing precoveries. SSOIS accepts as input either a list of observations, an object designation, a set of orbital elements, or a user-generated ephemeris for an object. It then searches for observations of that object over a range of dates. The user is then presented with a list of images containing that object from a variety of archives. Initially created to search the CFHT MegaCam archive, SSOIS has been extended to other telescopes including Gemini, Subaru/SuprimeCam, HST, the SDSS, AAT, the ESO telescopes, and the NOAO telescopes (KPNO/CTIO/WIYN), for a total of 7.6 million images. The SSOIS tool is located on the web at http://www.cadc-ccda.hia-iha.nrc-cnrc.gc.ca/en/ssois/.

Gwyn, S.; Hill, N.; Kavelaars, J.

2014-07-01

311

American Electric Power's Project Probe-enhancing power engineering education through industrial-academic cooperation  

Microsoft Academic Search

Project Probe is an annual summer intern program offered by American Electric Power (AEP) to provide qualified engineering students a meaningful educational experience in power generation and utility operation. The program fosters communication and cooperation between academia and the power industry, enhances the education of future engineers, and supports engineering faculty while it enlightens students and faculty about the power

David J. Bayless; Richard I. Pawliger

1997-01-01

312

GETESS: Constructing a Linguistic Search Index for an Internet Search Engine  

Microsoft Academic Search

. In this paper we illustrate how Internet documents can beautomatically analyzed in order to capture the content of a document ina more detailed way than usually. The result of the document analysisis called abstract and will be used as a linguistic search index for theInternet search engine GETESS.We show how the linguistic analysis system SMES can be used for

Ilvio Bruder; Antje Düsterhöft; Markus Becker; Jochen Bedersdorfer; Günter Neumann

2000-01-01

313

Personalization Mechanisms for Content Indexing, Search, Retrieval and Presentation in a Multimedia Search Engine  

Microsoft Academic Search

Interest on multimedia content analysis, archival, retrieval and delivery is steadily increasing. This interest emanates from the digital media explosion that we are witnessing. Among others, the growth of multimedia content is compounding the need for more effective methods for searching such information. The automated web search engines that are currently used rely only on text descriptions and as a

Ourania I. Markaki; Dimitris E. Charilas

2009-01-01

314

Science and Engineering at The University of Edinburgh Site search: Search words Logout rsh End Edit  

E-print Network

Science and Engineering at The University of Edinburgh Site search: Search words Logout rsh End Edit Internal breadcrumbs: Home >> Research >> Earth and Planetary Science >> CCS, carbon capture and storage, Diagenesis School of GeoSciences Earth and Planetary Science Edit: Page | Wysiwyg | Metadata

Haszeldine, Stuart

315

Local search engine with global content based on domain specific knowledge  

Microsoft Academic Search

In the growing need for information we have come to rely on search engines. The use of large scale search engines, such as Google, is as common as surfing the World Wide Web. We are impressed with the capabilities of these search engines but still there is a need for improvment. A common problem with searching is the ambiguity of

SANDI POHOREC; MILAN ZORMAN

2009-01-01

316

Directing Web Search Engines using a Knowledge Amplification by Structured Expert Randomization Architecture  

E-print Network

Directing Web Search Engines using a Knowledge Amplification by Structured Expert Randomization is inevitable. 1 Web Search Engines The World Wide Web continues to play an important role in storing environments. Search engines for the general web typically do not really search the World Wide Web directly

Chen, Shu-Ching

317

The Effect of Brand Awareness on the Evaluation of Search Engine Results  

E-print Network

The Effect of Brand Awareness on the Evaluation of Search Engine Results AbstractBernard J. Jansen.edu In this paper we investigate the effect of search engine brand (i.e., identifying name that distinguishes amount of search traffic directed to less than a handful of Web search engines, even though many

Jansen, James

318

How does our search engine "see" the world? The case of amodal completion  

E-print Network

How does our search engine "see" the world? The case of amodal completion Jeremy M. Wolfe & Ester internal search engine. Keywords Visual attention . Visual search . Amodal completion . Occlusion . Object internal search engine has access to a representation of the world that can be used to guide the deployment

319

A Customized Web Search Engine Using a Tiny WebSQL Query Language  

E-print Network

A Customized Web Search Engine Using a Tiny WebSQL Query Language A Project Report Submitted information­retrieval requests (search inputs) to "search engines", also known as "index servers", that index as many documents as they can find from the Web [5]. Each search engine uses software called "spider

320

Hierarchical Structural Approach to Improving the Browsability of Web Search Engine Results  

E-print Network

Hierarchical Structural Approach to Improving the Browsability of Web Search Engine Results Hang,zaiane}@cs.ualberta.ca Abstract Web users have been mainly relying on Web search engines to find information of interest on the Web. However, two key issues remain with traditional Web search engines: the browsability of searching

Zaiane, Osmar R.

321

Power Systems Engineering Research Center PSERC Background Paper  

E-print Network

Power Systems Engineering Research Center PSERC Background Paper What is Reactive Power? Peter W-Champaign September 16, 2003 Engineering talk Reactive power is a quantity that is normally only defined time). In that sense, these are pulsating quantities. Because of this, the power being transmitted down

322

Rotary valve engine with tandem power and supercharger sections  

Microsoft Academic Search

This patent describes an engine comprising engine block means providing: a plurality of power cylinders having parallel axes; an equal number of supercharger cylinders each axially aligned with a power cylinder; a central bore having an axis parallel to the cylinder axes and having ports into each power cylinder at a common axial level at the end of the power

1988-01-01

323

A Multi-Agent Based Personalized Meta-Search Engine Using Automatic Fuzzy Concept Networks  

Microsoft Academic Search

As a result of the rapid growth and dynamic content of the web, the general purpose web search engines are becoming deficient. Although the meta-search engines can help by increasing the search coverage of the web, the large number of irrelevant results returned by a meta-search engine is still causing problems for the users. The personalization of meta-search engines overcomes

Batool Arzanian; Fardin Akhlaghian; Parham Moradi

2010-01-01

324

Device for cooling engine power unit  

SciTech Connect

A device is described for cooling a power unit, comprising: a pulley arranged to be rotated by an output shaft of an engine; a belt hung about the pulley for transmitting a driving force of the engine; a belt casing provided at one side of the engine for housing the pulley and the belt; a shroud for covering the belt casing and the engine; an exterior air inlet formed in the shroud opposite the pulley with the belt casing disposed between exterior air inlet and the pulley; the belt casing including a partition wall provided between the exterior air inlet and the pulley to divide the exterior air inlet whereby the exterior air inlet communicates with both the outside and inside of the belt casing; a first fan provided on one side of the partition wall opposite the shroud for sending exterior air to the outside of the belt casing; and a second fan provided on the other side of the partition wall opposite the belt casing for sending exterior air to the inside of the belt casing, the first and second fans being connected to the output shaft.

Onda, T.; Yamamoto, H.; Kimoto, M.

1986-12-30

325

Modeling and Optimizing Hypertextual Search Engines Based on the Reasearch of Larry Page and Sergey Brin  

E-print Network

Modeling and Optimizing Hypertextual Search Engines Based on the Reasearch of Larry Page and Sergey 15, 2009 mek (UVM) Search Engines April 15, 2009 1 / 57 #12;Abstract Overview As the volume search engines work and what modifications can potentially be made to make the engines work more quickly

Wu, Xindong

326

Two-Level Smart Search Engine Using Ontology-Based Semantic Reasoning  

E-print Network

Two-Level Smart Search Engine Using Ontology- Based Semantic Reasoning Haiping Xu and Arturo W. Li 02747, USA {hxu, ali}@umassd.edu Abstract--Traditional search engines are typically keyword- based engines, in this paper, we introduce an approach to developing a smart search engine using ontology

Xu, Haiping

327

40 CFR 91.115 - Certification procedure-determining engine power and engine families.  

Code of Federal Regulations, 2012 CFR

...false Certification procedure-determining engine power and engine families. 91.115 Section 91.115 ...PROGRAMS (CONTINUED) CONTROL OF EMISSIONS FROM MARINE SPARK-IGNITION ENGINES Emission Standards and Certification...

2012-07-01

328

40 CFR 91.115 - Certification procedure-determining engine power and engine families.  

Code of Federal Regulations, 2010 CFR

...false Certification procedure-determining engine power and engine families. 91.115 Section 91.115 ...PROGRAMS (CONTINUED) CONTROL OF EMISSIONS FROM MARINE SPARK-IGNITION ENGINES Emission Standards and Certification...

2010-07-01

329

40 CFR 91.115 - Certification procedure-determining engine power and engine families.  

...true Certification procedure-determining engine power and engine families. 91.115 Section 91.115 ...PROGRAMS (CONTINUED) CONTROL OF EMISSIONS FROM MARINE SPARK-IGNITION ENGINES Emission Standards and Certification...

2014-07-01

330

40 CFR 91.115 - Certification procedure-determining engine power and engine families.  

Code of Federal Regulations, 2013 CFR

...false Certification procedure-determining engine power and engine families. 91.115 Section 91.115 ...PROGRAMS (CONTINUED) CONTROL OF EMISSIONS FROM MARINE SPARK-IGNITION ENGINES Emission Standards and Certification...

2013-07-01

331

40 CFR 91.115 - Certification procedure-determining engine power and engine families.  

Code of Federal Regulations, 2011 CFR

...false Certification procedure-determining engine power and engine families. 91.115 Section 91.115 ...PROGRAMS (CONTINUED) CONTROL OF EMISSIONS FROM MARINE SPARK-IGNITION ENGINES Emission Standards and Certification...

2011-07-01

332

Asian Studies WWW VL Search Engines: Pt 1  

NSDL National Science Digital Library

Yet another resource from online Asian Studies-guru T. Matthew Ciolek of the Australian National University, this dedicated search engine accesses "major Asian Studies' research resources recorded by the HotBot database." The engine covers the Websites of ten established Asian Studies organizations (asianart.com; coombs.anu.edu.au; iias.leidenuniv.nl; menic.utexas.edu; sun.sino.uni-heidelberg.de; www.aasianst.org; www.asian.gu.edu.au; www.asiasociety.org; www.ciolek.com; and www.ias.berkeley.edu), and search returns include brief annotations. The page also provides links to sixteen Asian Pacific country-specific search engines. Asia Pacific Research Online, Ciolek's main page, offers links to his array of online information resources and special projects.

333

Automatic Search Engine Performance Evaluation with the Wisdom of Crowds  

Microsoft Academic Search

Relevance evaluation is an important topic in Web search engine research. Traditional evaluation methods resort to huge amount\\u000a of human efforts which lead to an extremely time-consuming process in practice. With analysis on large scale user query logs\\u000a and click-through data, we propose a performance evaluation method that fully automatically generates large scale Web search\\u000a topics and answer sets under

Rongwei Cen; Yiqun Liu; Min Zhang; Liyun Ru; Shaoping Ma

2009-01-01

334

CORRELATION ANALYSIS OF ON-PAGE ATTRIBUTES AND SEARCH ENGINE RANKINGS.  

E-print Network

??Despite sophisticated search engine algorithms designed to eliminate irrelevant content, many Internet content providers with valuable information are unable to achieve visibility in the search… (more)

FISTER, JUSTIN M.

2007-01-01

335

Classifying Search Engine Queries Using the Web as Background Knowledge  

Microsoft Academic Search

The performance of search engines crucially depends on their\\u000a ability to capture the meaning of a query most likely intended\\u000a by the user. We study the problem of mapping a\\u000a search engine query to those nodes of a given subject taxonomy\\u000a that characterize its most likely meanings. We describe\\u000a the architecture of a classification system that uses a\\u000a web directory

David S. Vogel; Steffen Bickel; Peter Haider; Rolf Schimpfky; Peter Siemen; Steve Bridges; Tobias Scheffer

2005-01-01

336

Heat engine development for solar thermal power systems  

NASA Technical Reports Server (NTRS)

The parabolic dish solar collector systems for converting sunlight to electrical power through a heat engine will, require a small heat engine of high performance long lifetime to be competitive with conventional power systems. The most promising engine candidates are Stirling, high temperature Brayton, and combined cycle. Engines available in the current market today do not meet these requirements. The development of Stirling and high temperature Brayton for automotive applications was studied which utilizes much of the technology developed in this automotive program for solar power engines. The technical status of the engine candidates is reviewed and the components that may additional development to meet solar thermal system requirements are identified.

Pham, H. Q.; Jaffe, L. D.

1981-01-01

337

Centre Hydraulic Power Supply Unit University of Saskatchewan -Mechanical Engineering Fluid Power and Controls  

E-print Network

Centre Hydraulic Power Supply Unit University of Saskatchewan - Mechanical Engineering ­ Fluid Power and Controls ID: FP0003 Rev: 001 Date: May 31, 2010 Page: 1 of 7 Centre Hydraulic Power Supply;Centre Hydraulic Power Supply Unit University of Saskatchewan - Mechanical Engineering ­ Fluid Power

Saskatchewan, University of

338

A CLIR Interface to a Web search engine.  

PubMed

Medical document retrieval presents a unique combination of challenges for the design and implementation of retrieval engines. We introduce a method to meet these challenges by implementing a multilingual retrieval interface for biomedical content in the World Wide Web. To this end we developed an automated method for interlingual query construction by which a standard Web search engine is enabled to process non-English queries from the biomedical domain in order to retrieve English documents. PMID:16779221

Daumke, Philipp; Schulz, Stefan; Markó, Kornél

2005-01-01

339

A CLIR Interface to a Web Search Engine  

PubMed Central

Medical document retrieval presents a unique combination of challenges for the design and implementation of retrieval engines. We introduce a method to meet these challenges by implementing a multilingual retrieval interface for biomedical content in the World Wide Web. To this end we developed an automated method for interlingual query construction by which a standard Web search engine is enabled to process non-English queries from the biomedical domain in order to retrieve English documents. PMID:16779221

Daumke, Philipp; Schulz, Stefan; Markó, Kornél

2005-01-01

340

Using gas-turbine power stations with aircraft engines for power-and-heat generation  

Microsoft Academic Search

The purpose is to determine certain power engineering indices of gas turbine engines used to generate electricity and heat. The RD-3M-500 engine is discussed. It is concluded that the engine would be useful for the generation of heat and electricity in regions located far from large power sources when these regions had limited water and fuel supplies.

A. A. Margaryan

1984-01-01

341

Defining a Session on Web Search Engines  

Microsoft Academic Search

Detecting query reformulations within a session by a Web searcher is an important area of research for de- signing more helpful searching systems and targeting content to particular users. Methods explored by other researchers include both qualitative (i.e., the use of human judges to manually analyze query patterns on usually small samples) and nondeterministic algorithms, typically using large amounts of

Bernard J. Jansen; Amanda Spink; Chris Blakely; Sherry Koshman

2007-01-01

342

Virage Image Search Engine: An Open Framework for Image Management  

Microsoft Academic Search

Until recently, the management of large image databases has relied exclusively on manually entered alphanumeric annotations. Systems are beginning to emerge in both the research and commercial sectors based on 'content-based' image retrieval, a technique which explicitly manages image assets by directly representing their visual attributes. The Virage image search engine provides an open framework for building such systems. The

Jeffrey R. Bach; Charles Fuller; Amarnath Gupta; Arun Hampapur; Bradley Horowitz; Rich Humphrey; Ramesh Jain; Chiao-Fe Shu

1996-01-01

343

Removing Web Spam Links from Search Engine Results  

Microsoft Academic Search

Web spam denotes the manipulation of web pages with the sole intent to raise their position in search engine rankings. Since a better position in the ran kings directly and positively affects the number of visits to a site, attackers use different techn iques to boost their pages to higher ranks. In the best case, web spam pages are a

Manuel Egele; Christopher Kruegel; Engin Kirda

344

Automatic Stream Classification for the Singingfish Search Engine  

Microsoft Academic Search

This paper describes a classification experience that was per- formed on the stream metadata collected by the Singing- fish search engine. Using the categorization created by the Singingfish Content Team, we have tried to assess the per- formances achievable by a simple na¨ive Bayes classifier.

Jean-Ronan Vigouroux; Louis Chevallier; Robert Forthofer; Ted Diamond; Eric Rehm

345

Optimizing Ranking Calculation in Web Search Engines: a Case Study  

Microsoft Academic Search

Web search engines compete to offer the fastest responses with highest relevance. However, as Web collections grow, it becomes more difficult to achieve this purpose. As most users tend to see only the first two pages of results, it is unnecessary to compute the ranking of each one of the millions of documents that usually match any given query. Only

Miguel Costa; Mário J. Silva

2004-01-01

346

A Novel Interdisciplinary Approach to Deep Web Search Engine  

Microsoft Academic Search

Summary In this paper, we will discuss on the strategic issues of exploring, harvesting and integrating the Deep Web. We will then develop a novel interdisciplinary stochastic model for a Deep Web Search Engine which can detect and rank the contents optimally. Our efforts aim at opening up to users by building Generator. On this information grand voyage, the Generator

Pyke Tin; Thi Thi Zin; Hiromitsu Hama

347

Improved techniques for result caching in web search engines  

Microsoft Academic Search

Query processing is a major cost factor in operating large web search engines. In this paper, we study query result caching, one of the main techniques used to optimize query processing performance. Our first contribution is a study of result caching as a weighted caching problem. Most previous work has focused on optimizing cache hit ratios, but given that processing

Qingqing Gan; Torsten Suel

2009-01-01

348

Querying the Semantic Web with Corese Search Engine  

Microsoft Academic Search

This paper presents an ontology-based approach for web querying, using semantic metadata. We propose a query language based on ontologies and emphasize its ability to express approximate queries, useful for an efficient information retrieval on the web. We present the Corese search engine dedicated to RDF(S) metadata and illustrate it through several real-world applications.

Olivier Corby; Rose Dieng-Kuntz; Catherine Faron-zucker

2004-01-01

349

Semantic similarity between search engine queries using temporal correlation  

Microsoft Academic Search

We investigate the idea of finding semantically related search engine queries based on their ; in other words, we infer that two queries are related if their popularities behave similarly over time. To this end, we first define a new measure of the temporal correlation of two queries based on the correlation coefficient of their frequency functions. We then conduct

Steve Chien; Nicole Immorlica

2005-01-01

350

Modeling score distributions for combining the outputs of search engines  

Microsoft Academic Search

In this paper the score distributions of a number of text search engines are modeled. It is shown empirically that the score distributions on a per query basis may be fitted using an exponential distribution for the set of non-relevant documents and a normal distribution for the set of relevant documents. Experiments show that this model fits TREC-3 and TREC-4

R. Manmatha; Toni M. Rath; Fangfang Feng

2001-01-01

351

Shaping the Web: Why the Politics of Search Engines Matters  

Microsoft Academic Search

Thisarticlearguesthatsearchenginesraisenotmerelytechnical issues but also political ones. Our study of search engines suggests that they systematically exclude (in some cases by design and in some, accidentally ) certain sites and certain types of sites in favor of others, systematically giving prominence to some at the expense of others. We argue that such biases, which would lead to a nar- rowing of

Lucas D. Introna; Helen Nissenbaum

2000-01-01

352

Transparent Queries: investigation users' mental models of search engines  

Microsoft Academic Search

Typically, commercial Web search engines provide very little feedback to the user concerning how a particular query is processed and interpreted. Specifically, they apply key query transformations without the users knowledge. Although these transformations have a pronounced effect on query results, users have very few resources for recognizing their existence and understanding their practical importance. We conducted a user study

Jack Muramatsu; Wanda Pratt

2001-01-01

353

On Caching Search Engine Query Results Evangelos P. Markatos  

E-print Network

freshness of data is of crucial importance, accelerators provide mechanisms that remove data from on busy web servers (including busy search engines) web server accelerators are frequently used [7]. These accelerators are high­performance computers placed in front of a workstation cluster which hosts the web

Markatos, Evangelos P.

354

On Caching Search Engine Query Results Evangelos P. Markatos  

E-print Network

where freshness of data is of crucial importance, accelerators provide mechanisms that remove data from on busy web servers (including busy search engines) web server accelerators are frequently used [7]. These accelerators are high-performance computers placed in front of a workstation cluster which hosts the web

Markatos, Evangelos P.

355

PR Students' Perceptions and Readiness for Using Search Engine Optimization  

ERIC Educational Resources Information Center

Enough evidence is available to support the idea that public relations professionals must possess search engine optimization (SEO) skills to assist clients in a full-service capacity; however, little research exists on how much college students know about the tactic and best practices for incorporating SEO into course curriculum. Furthermore, much…

Moody, Mia; Bates, Elizabeth

2013-01-01

356

Detecting influenza epidemics using search engine Jeremy Ginsberg1  

E-print Network

Detecting influenza epidemics using search engine query data Jeremy Ginsberg1 , Matthew H. Mohebbi1 for Disease Control and Prevention Epidemics of seasonal influenza are a major public health concern, causing . In addition to seasonal influenza, a new strain of influenza virus against which no prior immunity exists

Tomkins, Andrew

357

A Competitive and Experiential Assignment in Search Engine Optimization Strategy  

ERIC Educational Resources Information Center

Despite an increase in ad spending and demand for employees with expertise in search engine optimization (SEO), methods for teaching this important marketing strategy have received little coverage in the literature. Using Bloom's cognitive goals hierarchy as a framework, this experiential assignment provides a process for educators who may be…

Clarke, Theresa B.; Clarke, Irvine, III

2014-01-01

358

How Will Online Affiliate Marketing Networks Impact Search Engine Rankings?  

Microsoft Academic Search

In online affiliate marketing networks advertising web sites offer their affiliates revenues based on provided web site traffic and associated leads and sales. Advertising web sites can have a network of thousands of affiliates providing them with web site traffic through hyperlinks on their web sites. Search engines such as Google, MSN, and Yahoo, consider hyperlinks as a proof of

D. Janssen; E. van Heck

2007-01-01

359

Criteria for evaluating alternative MEDLINE search engines.  

PubMed

With so many options available for searching MEDLINE on the World Wide Web or as a component of an online service, evaluation criteria are suggested as a means of assisting librarians in determining the positive and negative aspects of alternative MEDLINE sites. A set of searches was utilized to systematically compare MEDLINE sites. Sites evaluated included Avicenna, America Online, HealthGate, PubMed, Medscape, and Physicians' Online. Some features used to evaluate these sites were: default fields; operators (default); access to MeSH; subheadings; stop words protected in MeSH; truncation; and stemming. This article will describe the group process used to arrive at the evaluation criteria, as well as some general conclusions which will help librarians in directing their users to a particular MEDLINE site. PMID:10621384

Jacobs, M; Edwards, A; Graves, R S; Johnson, E D

1998-01-01

360

Adding a Visualization Feature to Web Search Engines: It’s Time  

SciTech Connect

Since the first world wide web (WWW) search engine quietly entered our lives in 1994, the “information need” behind web searching has rapidly grown into a multi-billion dollar business that dominates the internet landscape, drives e-commerce traffic, propels global economy, and affects the lives of the whole human race. Today’s search engines are faster, smarter, and more powerful than those released just a few years ago. With the vast investment pouring into research and development by leading web technology providers and the intense emotion behind corporate slogans such as “win the web” or “take back the web,” I can’t help but ask why are we still using the very same “text-only” interface that was used 13 years ago to browse our search engine results pages (SERPs)? Why has the SERP interface technology lagged so far behind in the web evolution when the corresponding search technology has advanced so rapidly? In this article I explore some current SERP interface issues, suggest a simple but practical visual-based interface design approach, and argue why a visual approach can be a strong candidate for tomorrow’s SERP interface.

Wong, Pak C.

2008-11-11

361

Astrophysics Multispectral Archive Search Engine (AMASE)  

NASA Astrophysics Data System (ADS)

AMASE is a new data-locating service on the World Wide Web provided by the Astrophysics Data Facility (ADF) at the NASA Goddard Space Flight Center (GSFC). It is an online multi- mission and multi-spectral catalog designed to help astrophysicists search for space mission data in the NASA public archives. AMASE is a "metadata base" built using object-oriented data base (OODB) methodology which allows mission data to be searched easily by scientific parameters. Fundamental astronomical measurements are captured from published astronomical catalogs and used as criteria to search the mission data archives. The scientific attributes searchable in the AMASE prototype include astronomical names, positions, coordinates and classifications. Other parameters such as flux, spectral bandpass, surface brightness, color, velocity, proper motion and redshift will be searchable in later releases. The AMASE prototype is currently populated with selected data products from two missions: the Infrared Astronomical Satellite (IRAS) and the Roentgensatellit (ROSAT), as well as various astronomical catalogs pertaining mainly to AGN and HII regions. The URL for the AMASE homepage is: http://amase.gsfc.nasa.gov/

Cheung, Cynthia; Reichert, Gail; Leisawitz, David; Blackwell, James; Roussopoulos, Nicholas

1996-05-01

362

International Security Network (ISN) Limited Area Search Engine (LASE)  

NSDL National Science Digital Library

ISN, the International Relations and Security Network (described in the June 16, 1998 Scout Report for Social Sciences), has recently introduced an extremely useful full text Limited Area Search Engine (LASE) in the field of international relations and security. The Eurospider search engine behind ISN LASE currently searches and retrieves documents from 150 selected sites; supports English, French, German, and Italian; and offers options such as "high-quality ranklists, highlighting of matched query terms, relevance feedback, and other advanced features." In addition to a very speedy retrieval of selected documents, the ISN LASE provides links to the original source. The ISN's guidelines for selecting sites to include in the LASE are listed in the ISN LASE Policies section.

363

WebPosition Gold Search Engine and Web Promotion Software  

NSDL National Science Digital Library

A product of FirstPlace Software, WebPosition Gold provides a way to increase traffic to your Web site without spending advertising dollars. WebPosition Gold generates HTML pages designed to rank near the top of search results, analyzes existing Web pages, gives advice on how to improve upon pages, assists in uploading new and changed pages, automatically submits pages to major search engines, and reports positions on each search engine for each keyword targeted. It also tracks the number of visitors to your site, where they came from, and what keywords they used to access the site. Before trying the working free trial version of WebPosition Gold, users must register (name and e-mail address) for notification of any product announcements or new updates. However, users may unsubscribe at any time.

1997-01-01

364

Integrated engine-generator concept for aircraft electric secondary power  

NASA Technical Reports Server (NTRS)

The integrated engine-generator concept of locating an electric generator inside an aircraft turbojet or turbofan engine concentric with, and driven by, one of the main engine shafts is discussed. When properly rated, the generator can serve as an engine starter as well as a generator of electric power. The electric power conversion equipment and generator controls are conveniently located in the aircraft. Preliminary layouts of generators in a large engine together with their physical sizes and weights indicate that this concept is a technically feasible approach to aircraft secondary power.

Secunde, R. R.; Macosko, R. P.; Repas, D. S.

1972-01-01

365

An Evaluation of How Search Engines Respond to Greek Language Queries  

Microsoft Academic Search

Over 20 billion Web pages from around the world have been indexed by search engines (10). This study investigates how search engines respond to non-English queries and more specifically to Greek language queries. To address this we conducted an evaluation using Greek queries in ten search engines: five \\

Efthimis N. Efthimiadis; Nicos Malevris; Apostolos Kousaridas; Alexandra Lepeniotou; Nikos Loutas

2008-01-01

366

Determining the User Intent of Web Search Engine Queries Bernard J. Jansen, Danielle L. Booth  

E-print Network

classification. We illustrate how knowledge of searcher intent might be used to enhance future Web search engines classification in an application that automatically classifies queries from a search engine transaction log. WeDetermining the User Intent of Web Search Engine Queries Bernard J. Jansen, Danielle L. Booth

Jansen, James

367

An Interactive Classification of Web Documents by Self-Organizing Maps and Search Engines  

Microsoft Academic Search

In this paper, we propose an effective classification view mechanism for hypertext data such as web documents based on Kohonen's Self-Organizing Map (SOM) and search engines. Web documents collected by search engines are automatically classified by SOM and the obtained SOMs are incremental- ly modified according to the interaction between users and SOMs. At present, various search engines are designed

Kenji Hatano; Ryouichi Sano; Yiwei Duan; Katsumi Tanaka

1999-01-01

368

GeoSearcher: GeoSpatial Ranking of Search Engine Results.  

ERIC Educational Resources Information Center

Discusses search engines and describes a prototype system that provides dynamic ranking of search engine results for geospatial queries based on the URL of the host site. Evaluates this approach using user queries and random Web pages, making a contribution to Web retrieval by providing an alternative ranking order for search engine results.…

Watters, Carolyn; Amoudi, Ghada

2002-01-01

369

EVALUATION OF A VISUALLY CATEGORIZED SEARCH ENGINE Berrin Dogusoy, Kursat Cagiltay  

E-print Network

EVALUATION OF A VISUALLY CATEGORIZED SEARCH ENGINE Berrin Dogusoy, Kursat Cagiltay Department and the search engines are becoming an indispensable tool in order to find information in Internet. While web, the intensive workload requires that people should use the time properly. Using search engines effectively turns

Paris-Sud XI, Université de

370

A WordNetBased Interface to Internet Search Engines Dan I. Moldovan and Rada Mihalcea  

E-print Network

search engines that automatically tracks each word on each web page that it can find, down­loads the pageA WordNet­Based Interface to Internet Search Engines Dan I. Moldovan and Rada Mihalcea Department­ ering tools have been developed. Several search engines with different characteristics, such as Al­ ta

Mihalcea, Rada

371

Search engine user behaviour: How can users be guided to quality content?  

Microsoft Academic Search

The typical behaviour of the Web search engine user is widely known: a user only types in one or a few keywords and expects the search engine to produce relevant results in an instant. Search engines not only adapt to this behaviour. On the contrary, they are often faced with criticism that they themselves created this kind of behaviour. As

Dirk Lewandowski

2008-01-01

372

The Effectiveness of Web Search Engines to Index New Sites from Different Countries  

ERIC Educational Resources Information Center

Introduction: Investigates how effectively Web search engines index new sites from different countries. The primary interest is whether new sites are indexed equally or whether search engines are biased towards certain countries. If major search engines show biased coverage it can be considered a significant economic and political problem because…

Pirkola, Ari

2009-01-01

373

Discovering the Representative of a Search Engine King-Lup Liu,  

E-print Network

Discovering the Representative of a Search Engine King-Lup Liu, School of CTI DePaul University-Binghamton Binghamton, NY 13902 meng@cs.binghamton.edu ABSTRACT Given a large number of search engines on the Internet, it is di cult for a person to determine which search engines could serve his/her information needs

Meng, Weiyi

374

Automatic Extraction of Dynamic Record Sections From Search Engine Result Pages  

E-print Network

Automatic Extraction of Dynamic Record Sections From Search Engine Result Pages Hongkun Zhao, Weiyi University of Illinois at Chicago Chicago, IL 60607, USA yu@cs.uic.edu ABSTRACT A search engine returned to the query, such as information related to the hosting site of the search engine. In this paper, we present

Meng, Weiyi

375

Simulation of Distributed Search Engines: Comparing Term, Document and Hybrid Distribution1  

E-print Network

Simulation of Distributed Search Engines: Comparing Term, Document and Hybrid Distribution1 Andrew' taught by Professor Johnny Wong in Winter 2008. #12;Simulation of Distributed Search Engines: Comparing distributed search engines is presented. This method measures throughput (queries per second) and resource

Waterloo, University of

376

A Machine Learning Approach to Building Domain-Specific Search Engines  

Microsoft Academic Search

Domain-specic search engines are becomingincreasingly popular because they oer increasedaccuracy and extra features not possiblewith general, Web-wide search engines.Unfortunately, they are also di?cult and timeconsumingto maintain. This paper proposesthe use of machine learning techniques togreatly automate the creation and maintenanceof domain-specic search engines. We describenew research in reinforcement learning, textclassication and information extraction thatenables...

Andrew Mccallum; Kamal Nigam; Jason Rennie; Kristie Seymore

1999-01-01

377

A study of results overlap and uniqueness among major Web search engines  

E-print Network

A study of results overlap and uniqueness among major Web search engines Amanda Spink a,*, Bernard engines is an important and significant area of research. Millions of people world wide use Web search retrieved by multiple Web search engines for a large set of more than 10,000 queries. Previous smaller

Jansen, James

378

TalkMiner: A Search Engine for Online Lecture Video John Adcock1  

E-print Network

TalkMiner: A Search Engine for Online Lecture Video John Adcock1 Matthew Cooper1 Laurent Denoue1}@fxpal.com hpirsiav@ics.uci.edu ABSTRACT TalkMiner is a search engine for lecture webcasts. Lecture videos of sources. A public website now allows users to experiment with the search engine. Categories and Subject

Reif, Rafael

379

Comparison of Search Engines Non-Neutral and Neutral Pierre Coucheney  

E-print Network

Comparison of Search Engines Non-Neutral and Neutral Behaviors Pierre Coucheney Inria Rennes to model two situations of a non-neutral search engine behavior, which can rank the link propositions ac Terms Economics, Neutrality, Search engines 1. INTRODUCTION Network neutrality has become a very hot

Paris-Sud XI, Université de

380

Web Search Engines: Practice and Experience Tao Yang, University of California at Santa Barbara  

E-print Network

Web Search Engines: Practice and Experience Tao Yang, University of California at Santa Barbara previously accessed URLs. Consequently, the service from a search engine becomes indispensable for users to navigate around the Web in an effective manner. General web search engines provide the most popular way

Yang, Tao

381

Click-Tracking Blocker: Privacy Preservation by Disabling Search Engines' Click-Tracking  

E-print Network

Click-Tracking Blocker: Privacy Preservation by Disabling Search Engines' Click-Tracking Roberto and Computer Science University of Central Florida Orlando, FL 32816 USA Abstract--On a search engine result action will be tracked by returning back to the search engine first and then redirecting

Zou, Cliff C.

382

Editorial to the special issue of Computers & Operations Research on Search-Based Software Engineering  

E-print Network

on the application of optimization and metaheuristic search techniques to problems in software engineering. Optimization and search based techniques have been applied to a wide range of software engineering problems as Search Based Software Engineering (SBSE) [5, 10]. The past five years have wit- ness a dramatic growth

Gutjahr, Walter

383

A game theory-based analysis of search engine non-neutral behavior  

E-print Network

A game theory-based analysis of search engine non-neutral behavior Luis Guijarro, Vicent Pla, Bruno the policy of major search engines, and more specifically about their ranking in so-called organic results: the payment by content providers to the search engine in order to improve the chances to be located

Paris-Sud XI, Université de

384

TalkMiner: A Lecture Webcast Search Engine John Adcock1  

E-print Network

TalkMiner: A Lecture Webcast Search Engine John Adcock1 Matthew Cooper1 Laurent Denoue1 Hamed@ics.uci.edu ABSTRACT The design and implementation of a search engine for lec- ture webcasts is described. A searchable identification. A prototype system was built to test the algorithms and the utility of the search engine. Users

Reif, Rafael

385

An Empirical Analysis of Paid Placement in Chinese Web Search Engine Results  

Microsoft Academic Search

Web search engines provide information access to millions of users per day. For many people, Web search engine are now the primary method for finding information, news, and products. Major search engines offer at least two types of results on the results page, non-sponsored and sponsored results. The goal of this study is to get a better idea of how

Haiquan Long; Benfu Lv; Geng Peng; Jie Chen

2008-01-01

386

Solar powered free-piston stirling engine  

SciTech Connect

A solar-powered Stirling engine is described comprising: a solar receiver which converts solar radiation to thermal energy; a storage chamber for thermal energy in heat transfer communication with the receiver; a displacer including a displacer chamber and a differential area displacer piston with variable electromagnetic damping means dividing the displacer chamber into separate hot and cold subchambers respectively, the hot subchamber being in heat transfer communication with the storage chamber; means for cooling the cold subchamber; an alternator including an alternator chamber and an alternator piston dividing the alternator chamber into working and bounce subchambers respectively, the working subchamber being in fluid communication with the cold subchamber of the displacer; a working fluid circulating through be cold subchamber and the working subchamber and in heat transfer communication with the storage chamber, the working fluid being displaced by the displacer piston to drive the alternator piston; and means for obtaining work output from the alternator piston.

Benson, G.M.

1987-02-17

387

Hierarchically Structural Approach to Improving the Browsability of Web Search Engine Results  

Microsoft Academic Search

Web users have been mainly relying on Web search engines to find information of interest on the Web. However, two key issues remain with traditional Web search engines: the browsability of searching results and the capacity of Web coverage. The long ranked list presentation of search results, which is widely adopted by the industry adds a layer of confusion to

Hang Cui; Osmar R. Zaïane

2001-01-01

388

An efficient quantum search engine on unsorted database  

NASA Astrophysics Data System (ADS)

We consider the problem of finding one or more desired items out of an unsorted database. Patel has shown that if the database permits quantum queries, then mere digitization is sufficient for efficient search for one desired item. The algorithm, called factorized quantum search algorithm, presented by him can locate the desired item in an unsorted database using O() queries to factorized oracles. But the algorithm requires that all the attribute values must be distinct from each other. In this paper, we discuss how to make a database satisfy the requirements, and present a quantum search engine based on the algorithm. Our goal is achieved by introducing auxiliary files for the attribute values that are not distinct, and converting every complex query request into a sequence of calls to factorized quantum search algorithm. The query complexity of our algorithm is O() for most cases.

Lu, Songfeng; Zhang, Yingyu; Liu, Fang

2013-10-01

389

21. POWER ROOM INTERIOR, DETAIL OF CATERPILLAR DIESEL ENGINE DIRECTLY ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

21. POWER ROOM INTERIOR, DETAIL OF CATERPILLAR DIESEL ENGINE DIRECTLY CONNECTED TO GENERAL ELECTRIC 15 KW DC GENERATOR (ON LEFT), 110 VOLTS, 136 AMPS, 1200 RPM. INSTALLED 1942. - Death Valley Ranch, Power House, Death Valley Junction, Inyo County, CA

390

23. POWER ROOM INTERIOR, DETAIL OF FAIRBANKSMORSE DIESEL ENGINE, DIRECTLY ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

23. POWER ROOM INTERIOR, DETAIL OF FAIRBANKS-MORSE DIESEL ENGINE, DIRECTLY CONNECTED TO FAIRBANKS-MORSE 30 KW DC GENERATOR, 125 VOLTS, 240 AMPS, 800 RPM. INSTALLED 1930. - Death Valley Ranch, Power House, Death Valley Junction, Inyo County, CA

391

Secondary electric power generation with minimum engine bleed  

NASA Technical Reports Server (NTRS)

Secondary electric power generation with minimum engine bleed is discussed. Present and future jet engine systems are compared. The role of auxiliary power units is evaluated. Details of secondary electric power generation systems with and without auxiliary power units are given. Advanced bleed systems are compared with minimum bleed systems. A cost model of ownership is given. The difference in the cost of ownership between a minimum bleed system and an advanced bleed system is given.

Tagge, G. E.

1983-01-01

392

Spacecraft Power Systems Engineering: Solutions for NASA's Manned Space Program  

NASA Technical Reports Server (NTRS)

An overview of spacecraft power systems is presented, with a focus on applications in the manned space program. The topics include: 1) History; 2) State-of-the-art; 3) Development directions; 4) Focus on applications in the manned space program led from JSC; 5) Power Systems Engineering Trade Space; 6) Power Generation and Energy Storage; 7) Power Distribution and Control; and 8) Actuation

Scott, John H.

2007-01-01

393

GGRNA: an ultrafast, transcript-oriented search engine for genes and transcripts  

PubMed Central

GGRNA (http://GGRNA.dbcls.jp/) is a Google-like, ultrafast search engine for genes and transcripts. The web server accepts arbitrary words and phrases, such as gene names, IDs, gene descriptions, annotations of gene and even nucleotide/amino acid sequences through one simple search box, and quickly returns relevant RefSeq transcripts. A typical search takes just a few seconds, which dramatically enhances the usability of routine searching. In particular, GGRNA can search sequences as short as 10 nt or 4 amino acids, which cannot be handled easily by popular sequence analysis tools. Nucleotide sequences can be searched allowing up to three mismatches, or the query sequences may contain degenerate nucleotide codes (e.g. N, R, Y, S). Furthermore, Gene Ontology annotations, Enzyme Commission numbers and probe sequences of catalog microarrays are also incorporated into GGRNA, which may help users to conduct searches by various types of keywords. GGRNA web server will provide a simple and powerful interface for finding genes and transcripts for a wide range of users. All services at GGRNA are provided free of charge to all users. PMID:22641850

Naito, Yuki; Bono, Hidemasa

2012-01-01

394

Improving Turbocharged Diesel Engine Operation with Turbo Power Assist System  

E-print Network

Improving Turbocharged Diesel Engine Operation with Turbo Power Assist System I. Kolmanovsky A. G Engineering, UC, Santa Barbara Abstract The paper investigates improvements in the tur- bocharged diesel problem. Comparison with a conventional turbocharged diesel engine reveals the mechanism by which

Stefanopoulou, Anna

395

An Interactive Computer Graphics Package for Electric Power Engineering Education  

Microsoft Academic Search

The widespread availability of computer terminals with graphics capability has made it possible to develop interactive software for use in electric power engineering education. This paper presents a general description of the RPI graphics system and the programs now available for power engineering use.

S. J. Salon

1983-01-01

396

Solar powered stirling engine for self-generating electricity  

Microsoft Academic Search

In the energy deficient world, it is strongly felt that the use of solar energy as a possible source is not being fully utilised. So in an attempt to deploy its use, a novel concept of “solar powered stirling engine” is introduced in this paper. At present there are no solar powered Stirling engines ready for use in many countries.

R. Aishwarya; K. DhivyaBharathi

2011-01-01

397

Education and Training of Power Engineers in Australia  

Microsoft Academic Search

The paper deals with the field of electrical power engineering and its relevance and sustainability in the future. With increasing concerns about global warming and green house gases, the electricity energy generation, conversion and utilisation will play an important part in future growth and development. The authors have highlighted the present state of Power Engineering and suggested few areas, which

Mahmood NAGRIAL; Jamal RIZK

398

End user searching: A Web log analysis of NAVER, a Korean Web search engine  

Microsoft Academic Search

Transaction logs of NAVER, a major Korean Web search engine, were analyzed to track the information-seeking behavior of Korean Web users. These transaction logs include more than 40 million queries collected over 1 week. This study examines current transaction log analysis methodologies and proposes a method for log cleaning, session definition, and query classification. A term definition method which is

Soyeon Park; Joon Ho Lee; Hee Jin Bae

2005-01-01

399

Finding Business Information on the "Invisible Web": Search Utilities vs. Conventional Search Engines.  

ERIC Educational Resources Information Center

Researchers for small businesses, which may have no access to expensive databases or market research reports, must often rely on information found on the Internet, which can be difficult to find. Although current conventional Internet search engines are now able to index over on billion documents, there are many more documents existing in…

Darrah, Brenda

400

GENIE: A General Internet Search Engine for Atomic Data  

NSDL National Science Digital Library

The Atomic and Molecular Data Unit, which operates within the Nuclear Data Section of the International Atomic Energy Agency in Vienna, Austria, maintains the General Internet Search Engine for Atomic Data (GENIE). The tool allows users to choose from two data types. The first is Oscillator Strengths and/or Transition Probabilities, which includes six databases. Users can specify the ion and the upper and lower wavelength limit. The other data is entitled Electron Impact Cross Sections and/or Rate Coefficients and contains two databases. For these data, users can choose the ion and the process of electron impact as either excitation or ionization. The ease of use and wealth of information that can be obtained from the search engine makes it a great tool for those looking for these specific data types.

401

Applicability of advanced automotive heat engines to solar thermal power  

NASA Technical Reports Server (NTRS)

The requirements of a solar thermal power system are reviewed and compared with the predicted characteristics of automobile engines under development. A good match is found in terms of power level and efficiency when the automobile engines, designed for maximum powers of 65-100 kW (87 to 133 hp) are operated to the nominal 20-40 kW electric output requirement of the solar thermal application. At these reduced power levels it appears that the automotive gas turbine and Stirling engines have the potential to deliver the 40+ percent efficiency goal of the solar thermal program.

Beremand, D. G.; Evans, D. G.; Alger, D. L.

1981-01-01

402

Removing web spam links from search engine results  

Microsoft Academic Search

Web spam denotes the manipulation of web pages with the sole intent to raise their position in search engine rankings. Since\\u000a a better position in the rankings directly and positively affects the number of visits to a site, attackers use different\\u000a techniques to boost their pages to higher ranks. In the best case, web spam pages are a nuisance that

Manuel Egele; Clemens Kolbitsch; Christian Platzer

2011-01-01

403

Research on Web mining-based intelligent search engine  

Microsoft Academic Search

Currently, the World-Wide Web has developed to a distributed information space with nearly 100 million workstations and several billion pages, which causes problems for people trying to find required information amongst the huge amount of information available. The search engine is a very important tool for people to obtain information on the Internet, but low-precision and low-recall exist widely in

Yan Li; Xin-Zhong Chen; Bing-Ru Yang

2002-01-01

404

The retrieval effectiveness of web search engines: considering results descriptions  

Microsoft Academic Search

Purpose – The purpose of this paper is to compare five major web search engines (Google, Yahoo, MSN, Ask.com, and Seekport) for their retrieval effectiveness, taking into account not only the results, but also the results descriptions. Design\\/methodology\\/approach – The study uses real-life queries. Results are made anonymous and are randomized. Results are judged by the persons posing the original

Dirk Lewandowski; Berliner Tor

2008-01-01

405

A Fuzzy Integral Method to Merge Search Engine Results on Web  

Microsoft Academic Search

\\u000a Distributed information retrieval searches information among many disjoint databases or search engine results and merge of\\u000a retrieved results into a single result list that a person can browse easily. How to merge the results returned by selected\\u000a search engine is an important subproblem of the distributed information retrieval task, because every search engine has its\\u000a own calculation or definition about

Shuning Cui; Boqin Feng

2005-01-01

406

A personalized search engine based on web-snippet hierarchical clustering  

Microsoft Academic Search

In this paper we propose a hierarchical clustering engine, called snaket, that is able to organize on-the-fly the search results drawn from 16 commodity search engines into a hierarchy of labeled folders. The hierarchy offers a complementary view to the flat-ranked list of results returned by current search engines. Users can navigate through the hierarchy driven by their search needs.

Paolo Ferragina; Antonio Gulli

2005-01-01

407

Improving Free-Piston Stirling Engine Specific Power  

NASA Technical Reports Server (NTRS)

This work uses analytical methods to demonstrate the potential benefits of optimizing piston and/or displacer motion in a Stirling Engine. Isothermal analysis was used to show the potential benefits of ideal motion in ideal Stirling engines. Nodal analysis is used to show that ideal piston and displacer waveforms are not optimal in real Stirling engines. Constrained optimization was used to identify piston and displacer waveforms that increase Stirling engine specific power.

Briggs, Maxwell Henry

2014-01-01

408

SearchResultFinder: Federated Search Made Easy Dolf Trieschnigg, Kien Tjin-Kam-Jet and Djoerd Hiemstra  

E-print Network

SearchResultFinder: Federated Search Made Easy Dolf Trieschnigg, Kien Tjin-Kam-Jet and Djoerd Building a federated search engine based on a large number existing web search engines is a challenge, Scraper, Wrapper, Search result extraction 1. INTRODUCTION Federated search engines combine the power

Hiemstra, Djoerd

409

The application of clustering to Web search engine tech-nology is a novel approach that offers structure to the  

E-print Network

The application of clustering to Web search engine tech- nology is a novel approach that offers of Vivisimo.com, which is a Web meta-search engine that dynamically clusters users' search results on repeat users of the search engine are reported. These results provide insights into search

Jansen, James

410

To appear in 2011 International Joint Conference of Artificial Intelligence (IJCAI 2011), July 16-22, 2011. A New Search Engine Integrating Hierarchical Browsing and Keyword Search  

E-print Network

in modern search engines, such as Google and Bing. This is because manual classification can hardly keep-22, 2011. A New Search Engine Integrating Hierarchical Browsing and Keyword Search Da Kuang and Xiao Li6A 5B7 {dkuang, xli485, cling}@csd.uwo.ca Abstract The original Yahoo! search engine consists of man

Ling, Charles X.

411

Using a Delphi method and the analytic hierarchy process to evaluate Chinese search engines : A case study on Chinese search engines  

Microsoft Academic Search

Purpose – The purpose of this study is to develop an evaluation criteria system for search engines using the Delphi method and the analytic hierarchy process, and to conduct an empirical study on Chinese search engines to verify it. This is because the evaluation criteria in current research rarely considers expert opinions and experience, and seldom calculates the weight of

Qinghua Zhu; Jia Tina Du; Fei Meng; Kewen Wu; Xiaoling Sun

2011-01-01

412

Rotary valve engine with tandem power and supercharger sections  

SciTech Connect

This patent describes an engine comprising engine block means providing: a plurality of power cylinders having parallel axes; an equal number of supercharger cylinders each axially aligned with a power cylinder; a central bore having an axis parallel to the cylinder axes and having ports into each power cylinder at a common axial level at the end of the power cylinders remote from the supercharger cylinders and ports into each supercharger cylinder at another common axial level, respectively, at the end of the cylinders adjacent the power cylinders; a reciprocating piston in each of the cylinders and an interconnecting rod between the power cylinder piston and the piston in its axially aligned supercharger cylinder; ignition means supported on the engine block means associated with each of the power cylinders.

Williams, T.V.

1988-10-18

413

Integrated engine-generator for aircraft secondary power.  

NASA Technical Reports Server (NTRS)

The integrated engine-generator concept consists of an electric generator located inside a turbojet or turbofan engine and both concentric with and driven by one of the main engine shafts. The electric power-conversion equipment and generator controls are conveniently located in the aircraft. When properly rated, the generator serves as an engine starter as well as a source of electric power. The available generating capacity permits use of electrically driven engine accessories. This reduces or eliminates the need for an external gearbox on the engine, thereby simplifying the engine and nacelle assembly and increasing aircraft design flexibility. The nacelle diameter can then be decreased, resulting in less aerodynamic drag and reduced takeoff gross weight.

Secunde, R. R.

1972-01-01

414

14 CFR 135.369 - Large transport category airplanes: Reciprocating engine powered: En route limitations: All...  

Code of Federal Regulations, 2010 CFR

...Large transport category airplanes: Reciprocating engine powered: En route limitations: All engines operating. 135.369 Section...Large transport category airplanes: Reciprocating engine powered: En route limitations: All engines operating. (a) No...

2010-01-01

415

14 CFR 135.369 - Large transport category airplanes: Reciprocating engine powered: En route limitations: All...  

Code of Federal Regulations, 2011 CFR

...Large transport category airplanes: Reciprocating engine powered: En route limitations: All engines operating. 135.369 Section...Large transport category airplanes: Reciprocating engine powered: En route limitations: All engines operating. (a) No...

2011-01-01

416

14 CFR 135.371 - Large transport category airplanes: Reciprocating engine powered: En route limitations: One...  

Code of Federal Regulations, 2010 CFR

...Large transport category airplanes: Reciprocating engine powered: En route limitations: One engine inoperative. 135.371 Section...Large transport category airplanes: Reciprocating engine powered: En route limitations: One engine inoperative. (a)...

2010-01-01

417

14 CFR 135.371 - Large transport category airplanes: Reciprocating engine powered: En route limitations: One...  

Code of Federal Regulations, 2011 CFR

...Large transport category airplanes: Reciprocating engine powered: En route limitations: One engine inoperative. 135.371 Section...Large transport category airplanes: Reciprocating engine powered: En route limitations: One engine inoperative. (a)...

2011-01-01

418

A Tree Based Router Search Engine Architecture With Single Port Memories  

E-print Network

A Tree Based Router Search Engine Architecture With Single Port Memories Florin Baboescu , Dean M and packet classification. The new pipeline scheme and mem- ory allocator can provide searches with a memory computation and memory, allowing the entire architec- ture to compute at high rates. Network search engines

419

SASE: Implementation of a Compressed Text Search Engine Srinidhi Varadarajan Tzicker Chiueh  

E-print Network

in terms of raw speed as well as storage requirement, and has the capability of searching directly throughSASE: Implementation of a Compressed Text Search Engine Srinidhi Varadarajan Tzi­cker Chiueh)@cs.sunysb.edu http://www.ecsl.sunysb.edu/RFCSearch.html Abstract Keyword based search engines are the basic building

Chiueh, Tzi-cker

420

A Query Construction Service for Large-Scale Web Search Engines  

Microsoft Academic Search

Despite their wide usage, large-scale search engines are not always effective in tracing the best possible information for the user needs. There are times when web searchers spend too much time searching over a large-scale search engine. When (if) they eventually succeed in getting back the anticipated results, they often realize that their successful queries are significantly different from their

Ioannis Papadakis; Michalis Stefanidakis; Sofia Stamou; Ioannis Andreou

2009-01-01

421

GeoSearcher: Location-Based Ranking of Search Engine Results.  

ERIC Educational Resources Information Center

Discussion of Web queries with geospatial dimensions focuses on an algorithm that assigns location coordinates dynamically to Web sites based on the URL. Describes a prototype search system that uses the algorithm to re-rank search engine results for queries with a geospatial dimension, thus providing an alternative ranking order for search engine

Watters, Carolyn; Amoudi, Ghada

2003-01-01

422

An Evaluation of Major Image Search Engines on Various Query Topics  

Microsoft Academic Search

This paper investigates the information retrieval effectiveness of major image search engines based on various query topics. Initially, major image search engines, namely, Google, Yahoo, Ask and MSN are selected. Then, seven appropriate topics are determined from the categories of the top search terms used on the web and five queries per topic are chosen. Each query is run on

E. Cakir; H. Bahceci; Y. Bitirim

2008-01-01

423

14 CFR 121.185 - Airplanes: Reciprocating engine-powered: Landing limitations: Destination airport.  

Code of Federal Regulations, 2011 CFR

... Airplanes: Reciprocating engine-powered: Landing limitations...SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121... Airplanes: Reciprocating engine-powered: Landing limitations...person operating a reciprocating engine powered airplane...

2011-01-01

424

14 CFR 121.177 - Airplanes: Reciprocating engine-powered: Takeoff limitations.  

... Airplanes: Reciprocating engine-powered: Takeoff limitations...SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121... Airplanes: Reciprocating engine-powered: Takeoff limitations...person operating a reciprocating engine powered airplane may...

2014-01-01

425

14 CFR 121.177 - Airplanes: Reciprocating engine-powered: Takeoff limitations.  

Code of Federal Regulations, 2012 CFR

... Airplanes: Reciprocating engine-powered: Takeoff limitations...SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121... Airplanes: Reciprocating engine-powered: Takeoff limitations...person operating a reciprocating engine powered airplane may...

2012-01-01

426

14 CFR 121.185 - Airplanes: Reciprocating engine-powered: Landing limitations: Destination airport.  

Code of Federal Regulations, 2012 CFR

... Airplanes: Reciprocating engine-powered: Landing limitations...SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121... Airplanes: Reciprocating engine-powered: Landing limitations...person operating a reciprocating engine powered airplane...

2012-01-01

427

14 CFR 121.175 - Airplanes: Reciprocating engine-powered: Weight limitations.  

Code of Federal Regulations, 2011 CFR

...Airplanes: Reciprocating engine-powered: Weight limitations. 121.175...Airplanes: Reciprocating engine-powered: Weight limitations. (a) No...may take off a reciprocating engine powered airplane from an airport...

2011-01-01

428

14 CFR 121.175 - Airplanes: Reciprocating engine-powered: Weight limitations.  

Code of Federal Regulations, 2013 CFR

...Airplanes: Reciprocating engine-powered: Weight limitations. 121.175...Airplanes: Reciprocating engine-powered: Weight limitations. (a) No...may take off a reciprocating engine powered airplane from an airport...

2013-01-01

429

14 CFR 121.175 - Airplanes: Reciprocating engine-powered: Weight limitations.  

Code of Federal Regulations, 2012 CFR

...Airplanes: Reciprocating engine-powered: Weight limitations. 121.175...Airplanes: Reciprocating engine-powered: Weight limitations. (a) No...may take off a reciprocating engine powered airplane from an airport...

2012-01-01

430

14 CFR 121.185 - Airplanes: Reciprocating engine-powered: Landing limitations: Destination airport.  

...false Airplanes: Reciprocating engine-powered: Landing limitations: Destination airport...185 Airplanes: Reciprocating engine-powered: Landing limitations: Destination airport...person operating a reciprocating engine powered airplane may take off that...

2014-01-01

431

14 CFR 121.197 - Airplanes: Turbine engine powered: Landing limitations: Alternate airports.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 false Airplanes: Turbine engine powered: Landing limitations: Alternate airports...121.197 Airplanes: Turbine engine powered: Landing limitations: Alternate airports...or flight release for a turbine engine powered airplane unless (based on the...

2012-01-01

432

14 CFR 121.197 - Airplanes: Turbine engine powered: Landing limitations: Alternate airports.  

...2014-01-01 false Airplanes: Turbine engine powered: Landing limitations: Alternate airports...121.197 Airplanes: Turbine engine powered: Landing limitations: Alternate airports...or flight release for a turbine engine powered airplane unless (based on the...

2014-01-01

433

14 CFR 121.197 - Airplanes: Turbine engine powered: Landing limitations: Alternate airports.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 false Airplanes: Turbine engine powered: Landing limitations: Alternate airports...121.197 Airplanes: Turbine engine powered: Landing limitations: Alternate airports...or flight release for a turbine engine powered airplane unless (based on the...

2011-01-01

434

14 CFR 121.197 - Airplanes: Turbine engine powered: Landing limitations: Alternate airports.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 false Airplanes: Turbine engine powered: Landing limitations: Alternate airports...121.197 Airplanes: Turbine engine powered: Landing limitations: Alternate airports...or flight release for a turbine engine powered airplane unless (based on the...

2013-01-01

435

14 CFR 121.185 - Airplanes: Reciprocating engine-powered: Landing limitations: Destination airport.  

Code of Federal Regulations, 2010 CFR

...false Airplanes: Reciprocating engine-powered: Landing limitations: Destination airport...185 Airplanes: Reciprocating engine-powered: Landing limitations: Destination airport...person operating a reciprocating engine powered airplane may take off that...

2010-01-01

436

14 CFR 121.177 - Airplanes: Reciprocating engine-powered: Takeoff limitations.  

Code of Federal Regulations, 2013 CFR

...Airplanes: Reciprocating engine-powered: Takeoff limitations. 121.177...Airplanes: Reciprocating engine-powered: Takeoff limitations. (a) No person operating a reciprocating engine powered airplane may takeoff that airplane...

2013-01-01

437

14 CFR 121.175 - Airplanes: Reciprocating engine-powered: Weight limitations.  

...Airplanes: Reciprocating engine-powered: Weight limitations. 121.175...Airplanes: Reciprocating engine-powered: Weight limitations. (a) No...may take off a reciprocating engine powered airplane from an airport...

2014-01-01

438

14 CFR 121.175 - Airplanes: Reciprocating engine-powered: Weight limitations.  

Code of Federal Regulations, 2010 CFR

...Airplanes: Reciprocating engine-powered: Weight limitations. 121.175...Airplanes: Reciprocating engine-powered: Weight limitations. (a) No...may take off a reciprocating engine powered airplane from an airport...

2010-01-01

439

14 CFR 121.185 - Airplanes: Reciprocating engine-powered: Landing limitations: Destination airport.  

Code of Federal Regulations, 2013 CFR

...false Airplanes: Reciprocating engine-powered: Landing limitations: Destination airport...185 Airplanes: Reciprocating engine-powered: Landing limitations: Destination airport...person operating a reciprocating engine powered airplane may take off that...

2013-01-01

440

14 CFR 121.177 - Airplanes: Reciprocating engine-powered: Takeoff limitations.  

Code of Federal Regulations, 2011 CFR

...Airplanes: Reciprocating engine-powered: Takeoff limitations. 121.177...Airplanes: Reciprocating engine-powered: Takeoff limitations. (a) No person operating a reciprocating engine powered airplane may takeoff that airplane...

2011-01-01

441

49 CFR 176.905 - Motor vehicles or mechanical equipment powered by internal combustion engines.  

Code of Federal Regulations, 2010 CFR

...mechanical equipment powered by internal combustion engines. 176.905 Section...mechanical equipment powered by internal combustion engines. (a) A motor vehicle...equipment powered by an internal combustion engine is subject to the...

2010-10-01

442

40 CFR 1045.140 - What is my engine's maximum engine power?  

...2014-07-01 2014-07-01 false What is my engine's maximum engine power? 1045.140 Section 1045.140 Protection...CONTROL OF EMISSIONS FROM SPARK-IGNITION PROPULSION MARINE ENGINES AND VESSELS Emission Standards and Related...

2014-07-01

443

40 CFR 1045.140 - What is my engine's maximum engine power?  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 false What is my engine's maximum engine power? 1045.140 Section 1045.140 Protection...CONTROL OF EMISSIONS FROM SPARK-IGNITION PROPULSION MARINE ENGINES AND VESSELS Emission Standards and Related...

2010-07-01

444

40 CFR 1045.140 - What is my engine's maximum engine power?  

Code of Federal Regulations, 2013 CFR

...2013-07-01 2013-07-01 false What is my engine's maximum engine power? 1045.140 Section 1045.140 Protection...CONTROL OF EMISSIONS FROM SPARK-IGNITION PROPULSION MARINE ENGINES AND VESSELS Emission Standards and Related...

2013-07-01

445

40 CFR 1045.140 - What is my engine's maximum engine power?  

Code of Federal Regulations, 2011 CFR

...2011-07-01 2011-07-01 false What is my engine's maximum engine power? 1045.140 Section 1045.140 Protection...CONTROL OF EMISSIONS FROM SPARK-IGNITION PROPULSION MARINE ENGINES AND VESSELS Emission Standards and Related...

2011-07-01

446

40 CFR 1045.140 - What is my engine's maximum engine power?  

Code of Federal Regulations, 2012 CFR

...2012-07-01 2012-07-01 false What is my engine's maximum engine power? 1045.140 Section 1045.140 Protection...CONTROL OF EMISSIONS FROM SPARK-IGNITION PROPULSION MARINE ENGINES AND VESSELS Emission Standards and Related...

2012-07-01

447

Design and Implementation of a Geographic Search Engine Alexander Markowetz 1  

E-print Network

taking up yoga, local yoga schools are often of much higher interest than those of the world's ten biggest yoga schools. We expect that geographic search engines, i.e., search engines that support engine looking for a yoga school in or close to Brooklyn may end up trying queries such as (yoga AND new

Kersting, Kristian

448

Feature extractor and search engine for automatic object recognition  

NASA Astrophysics Data System (ADS)

Automatic object recognition methodologies are being used increasingly in the automation of many industrial processes. However, the specific nature of each system usually implies an intensive development effort. Aiming to control and constrain such effort, this paper presents a processing architecture that promotes the reutilization of common system modules. The approach described covers the whole processing chain by connecting low-level pre-processing to the final classification stage, specially emphasizing the segmentation and feature extraction levels. The resulting core is a search engine based on the data structure of a graph. This structure is initially fed with raw edge information extracted from the original raster image representation. The edge segments used at this preliminary version of the graph are the result of a multistage process of edge following and edge linking. The use of image properties at high levels of abstraction allows the dimensions of the search space to be significantly reduced. Modularity and reutilization allows the refinement of an initial low-level representation of information into successive higher levels of description, until a final set of features that may directly feed a classifier is achieved. Parallel contours, constant curvature edge segments and closed contours of a given shape are a few examples of the features easily defined within this architecture and that can be extracted by the search engine implemented.

Freire, Joao C.; Correia, Bento A. B.

1998-10-01

449

HYPower Hydraulic Power Supply Unit University of Saskatchewan -Mechanical Engineering Fluid Power and Controls  

E-print Network

HYPower Hydraulic Power Supply Unit University of Saskatchewan - Mechanical Engineering ­ Fluid Power and Controls ID: FP0002 Rev: 002 Date: May 31, 2010 Page: 1 of 7 Hydraulic Power Supply (HYPower-5462 Secondary Contact: #12;HYPower Hydraulic Power Supply Unit University of Saskatchewan - Mechanical

Saskatchewan, University of

450

East Hydraulic Power Supply Unit University of Saskatchewan -Mechanical Engineering Fluid Power and Controls  

E-print Network

East Hydraulic Power Supply Unit University of Saskatchewan - Mechanical Engineering ­ Fluid Power and Controls ID: FP0004 Rev: 001 Date: May 31, 2010 Page: 1 of 7 East Hydraulic Power Supply and Test Bench. Approved By: Primary Contact: Doug Bitner Rm: 1B15.1 966-5462 Secondary Contact: #12;East Hydraulic Power

Saskatchewan, University of

451

14 CFR 121.187 - Airplanes: Reciprocating engine-powered: Landing limitations: Alternate airport.  

Code of Federal Regulations, 2012 CFR

... false Airplanes: Reciprocating engine-powered: Landing limitations: Alternate...SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.187 Airplanes: Reciprocating engine-powered: Landing limitations:...

2012-01-01

452

14 CFR 121.187 - Airplanes: Reciprocating engine-powered: Landing limitations: Alternate airport.  

Code of Federal Regulations, 2011 CFR

... false Airplanes: Reciprocating engine-powered: Landing limitations: Alternate...SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.187 Airplanes: Reciprocating engine-powered: Landing limitations:...

2011-01-01

453

14 CFR 121.187 - Airplanes: Reciprocating engine-powered: Landing limitations: Alternate airport.  

... false Airplanes: Reciprocating engine-powered: Landing limitations: Alternate...SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.187 Airplanes: Reciprocating engine-powered: Landing limitations:...

2014-01-01

454

14 CFR 121.187 - Airplanes: Reciprocating engine-powered: Landing limitations: Alternate airport.  

Code of Federal Regulations, 2013 CFR

... false Airplanes: Reciprocating engine-powered: Landing limitations: Alternate...SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.187 Airplanes: Reciprocating engine-powered: Landing limitations:...

2013-01-01

455

Searching for safety: addressing search engine, website, and provider accountability for illicit online drug sales.  

PubMed

Online sales of pharmaceuticals are a rapidly growing phenomenon. Yet despite the dangers of purchasing drugs over the Internet, sales continue to escalate. These dangers include patient harm from fake or tainted drugs, lack of clinical oversight, and financial loss. Patients, and in particular vulnerable groups such as seniors and minorities, purchase drugs online either naïvely or because they lack the ability to access medications from other sources due to price considerations. Unfortunately, high risk online drug sources dominate the Internet, and virtually no accountability exists to ensure safety of purchased products. Importantly, search engines such as Google, Yahoo, and MSN, although purportedly requiring "verification" of Internet drug sellers using PharmacyChecker.com requirements, actually allow and profit from illicit drug sales from unverified websites. These search engines are not held accountable for facilitating clearly illegal activities. Both website drug seller anonymity and unethical physicians approving or writing prescriptions without seeing the patient contribute to rampant illegal online drug sales. Efforts in this country and around the world to stem the tide of these sales have had extremely limited effectiveness. Unfortunately, current congressional proposals are fractionated and do not address the key issues of demand by vulnerable patient populations, search engine accountability, and the ease with which financial transactions can be consummated to promote illegal online sales. To deal with the social scourge of illicit online drug sales, this article proposes a comprehensive statutory solution that creates a no-cost/low-cost national Drug Access Program to break the chain of demand from vulnerable patient populations and illicit online sellers, makes all Internet drug sales illegal unless the Internet pharmacy is licensed through a national Internet pharmacy licensing program, prohibits financial transactions for illegal online drug sales, and establishes criminal penalties for all parties -- including websites, search engines, and health care providers -- who engage in and facilitate this harmful activity. PMID:19534258

Liang, Bryan A; Mackey, Tim

2009-01-01

456

Exploiting Query Repetition and Regularity in an Adaptive Community-Based Web Search Engine  

Microsoft Academic Search

Search engines continue to struggle with the challenges presented by Web search: vague queries, impatient users and an enormous and rapidly expanding collection of unmoderated, heterogeneous documents all make for an extremely hostile search environment. In this paper we argue that conventional approaches to Web search -- those that adopt a traditional, document-centric, information retrieval perspective -- are limited by

Barry Smyth; Evelyn Balfe; Jill Freyne; Peter Briggs; Maurice Coyle; Oisín Boydell

2004-01-01

457

EIIS: An Educational Information Intelligent Search Engine Supported by Semantic Services  

ERIC Educational Resources Information Center

The semantic web brings a new opportunity for efficient information organization and search. To meet the special requirements of the educational field, this paper proposes an intelligent search engine enabled by educational semantic support service, where three kinds of searches are integrated into Educational Information Intelligent Search (EIIS)…

Huang, Chang-Qin; Duan, Ru-Lin; Tang, Yong; Zhu, Zhi-Ting; Yan, Yong-Jian; Guo, Yu-Qing

2011-01-01

458

75 FR 51987 - Birch Power Company and Sorenson Engineering; Birch Power Company and Sorenson Leasing L.L.C...  

Federal Register 2010, 2011, 2012, 2013

...Regulatory Commission [Project No. 7194-030] Birch Power Company and Sorenson Engineering; Birch Power Company and Sorenson Leasing L.L.C...Intervene August 17, 2010. On July 12, 2010, Birch Power Company and Sorenson Engineering...

2010-08-24

459

A Virtual Engineering Framework for Simulating Advanced Power System  

Microsoft Academic Search

In this report is described the work effort performed to provide NETL with VE-Suite based Virtual Engineering software and enhanced equipment models to support NETL's Advanced Process Engineering Co-simulation (APECS) framework for advanced power generation systems. Enhancements to the software framework facilitated an important link between APECS and the virtual engineering capabilities provided by VE-Suite (e.g., equipment and process visualization,

Mike Bockelie; Dave Swensen; Martin Denison; Stanislav Borodai

2008-01-01

460

Advanced catalytic converter system for natural gas powered diesel engines  

Microsoft Academic Search

The paper discusses the development of catalytic converter for aftertreatment of exhaust gas from diesel engines powered with natural gas. The converter, operated with periodical reversals of the flow, ensures destruction of CO and hydrocarbons, including methane. Both computer simulation and engine testing results are presented.

Vadim O. Strots; Grigorii A. Bunimovich; Yurii Sh. Matros; Ming Zheng; Edward A. Mirosh

1998-01-01

461

Electric Power Engineering Educational Resources 1969-1970  

Microsoft Academic Search

This committee report covers results of a survey of electric power engineering educational resources at eighty-two ECPD (Engineers Council for Professional Development) accredited schools in the USA for the acedemic year 1969-1970. It includes a listing of faculty active during the subject year and their professional experience together with information on student enrollment and its composition. Also included is information

F. C. Fisher; L. S. Vanslyck; E. T. B. Gross; C. C. Mosher; H. B. Hamilton; J. R. Tudor

1972-01-01

462

PERFORMANCE OF A STIRLING ENGINE POWERED HEAT ACTIVATED HEAT PUMP  

E-print Network

PERFORMANCE OF A STIRLING ENGINE POWERED HEAT ACTIVATED HEAT PUMP W. D. C. Richards and W. L. Auxer General Electric Company Space Division King of Prussia, Pa. ABSTRACT A heat activated heat pump (HAHP for space heating since it directly utilizes the engine waste heat in addition to the energy obtained

Oak Ridge National Laboratory

463

Heat engine development for solar thermal power systems  

NASA Technical Reports Server (NTRS)

The technical status of three heat engines (Stirling, high-temperature Brayton, and Combined cycle) for use in solar thermal power systems is presented. Performance goals necessary to develop a system competitive with conventional power requirements include an external heated engine output less than 40 kW, and efficiency power conversion subsystem at least 40% at rated output, and a half-power efficiency of at least 37%. Results show that the Stirling engine can offer a 39% efficiency with 100 hours of life, and a 20% efficiency with 10,000 hours of life, but problems with seals and heater heads exist. With a demonstrated efficiency near 31% at 1500 F and a minimum lifetime of 100,000 hours, the Brayton engine does not offer sufficient engine lifetime, efficiency, and maintenance for solar thermal power systems. Examination of the Rankine bottoming cycle of the Combined cycle engine reveals a 30 year lifetime, but a low efficiency. Additional development of engines for solar use is primarily in the areas of components to provide a long lifetime, high reliability, and low maintenance (no more than $0.001/kW-hr).

Pham, H. Q.; Jaffe, L. D.

1981-01-01

464

Post-rank reordering: resolving preference misalignments between search engines and end users  

Microsoft Academic Search

No search engine is perfect. A typical type of imperfection is the preference misalignment between search engines and end users, e.g., from time to time, web users skip higher-ranked documents and click on lower-ranked ones. Although search engines have been aggressively incorporating clickthrough data in their ranking, it is hard to eliminate such misalignments across millions of queries. Therefore, we,

Chao Liu; Mei Li; Yi-min Wang

2009-01-01

465

The Gaze of the Perfect Search Engine: Google as an Infrastructure of Dataveillance  

Microsoft Academic Search

Web search engines have emerged as a ubiquitous and vital tool for the successful navigation of the growing online informational\\u000a sphere. The goal of the world’s largest search engine, Google, is to “organize the world’s information and make it universally\\u000a accessible and useful” and to create the “perfect search engine” that provides only intuitive, personalized, and relevant\\u000a results. While intended

M. Zimmer

2008-01-01

466

A Longest Prefix Match Search Engine For Multi-Gigabit IP Processing  

Microsoft Academic Search

We propose an IP forwarding table search engine architecture, VLMP (vertical logical operation with mask-encoded prefix-length), for routers with multi-gigabit\\/sec speed links. We discuss the existing approaches and the requirements for search engines, and go on to propose VLMP search engine architecture that expands upon a content addressable memory (CAM) and can perform wire-speed packet processing of an OC-192 (9.6

Masayoshi Kobayashi; Tutomu Murase; Atsushi Kuriyama

2000-01-01

467

An open-source, mobile-friendly search engine for public medical knowledge.  

PubMed

The World Wide Web has become an important source of information for medical practitioners. To complement the capabilities of currently available web search engines we developed FindMeEvidence, an open-source, mobile-friendly medical search engine. In a preliminary evaluation, the quality of results from FindMeEvidence proved to be competitive with those from TRIP Database, an established, closed-source search engine for evidence-based medicine. PMID:25160206

Samwald, Matthias; Hanbury, Allan

2014-01-01

468

A Survey on the “Performance Evaluation of Various Meta Search Engines  

E-print Network

Though a Search Engine (SE) helps in the process of retrieving the information required to the user, a Meta Search Engine (MSEs) on the other hand uses new methodologies or fusion schemes for the information retrieval from the Web, and helps the user to collect more, relevant documents from the Web. This paper proposes a survey on various Meta Search Engines and the various parameters on which the efficiency of a MSE lies.

K. Srinivas; P. V. S. Srinivas; A. Govardhan

469

Solar power satellites - Heat engine or solar cells  

NASA Technical Reports Server (NTRS)

A solar power satellite is the energy-converting element of a system that can deliver some 10 GW of power to utilities on the earth's surface. We evaluated heat engines and solar cells for converting sunshine to electric power at the satellite. A potassium Rankine cycle was the best of the heat engines, and 50 microns thick single-crystal silicon cells were the best of the photovoltaic converters. Neither solar cells nor heat engines had a clear advantage when all factors were considered. The potassium-turbine power plant, however, was more difficult to assemble and required a more expensive orbital assembly base. We therefore based our cost analyses on solar-cell energy conversion, concluding that satellite-generated power could be delivered to utilities for around 4 to 5 cents a kWh.

Oman, H.; Gregory, D. L.

1978-01-01

470

Virage image search engine: an open framework for image management  

NASA Astrophysics Data System (ADS)

Until recently, the management of large image databases has relied exclusively on manually entered alphanumeric annotations. Systems are beginning to emerge in both the research and commercial sectors based on 'content-based' image retrieval, a technique which explicitly manages image assets by directly representing their visual attributes. The Virage image search engine provides an open framework for building such systems. The Virage engine expresses visual features as image 'primitives.' Primitives can be very general (such as color, shape, or texture) or quite domain specific (face recognition, cancer cell detection, etc.). The basic philosophy underlying this architecture is a transformation from the data-rich representation of explicit image pixels to a compact, semantic-rich representation of visually salient characteristics. In practice, the design of such primitives is non-trivial, and is driven by a number of conflicting real-world constraints (e.g. computation time vs. accuracy). The virage engine provides an open framework for developers to 'plug-in' primitives to solve specific image management problems. The architecture has been designed to support both static images and video in a unified paradigm. The infrastructure provided by the Virage engine can be utilized to address high-level problems as well, such as automatic, unsupervised keyword assignment, or image classification.

Bach, Jeffrey R.; Fuller, Charles; Gupta, Amarnath; Hampapur, Arun; Horowitz, Bradley; Humphrey, Rich; Jain, Ramesh C.; Shu, Chiao-Fe

1996-03-01

471

Presenting Results of a Search Engine for Recorded Lectures in order to Support Relevance Decisions by the User  

E-print Network

Presenting Results of a Search Engine for Recorded Lectures in order to Support Relevance Decisions for search engine interface design is to present the results in a way that supports the users in selecting engine for recorded lectures. An evaluation with different user interfaces for such a search engine

Hürst, Wolfgang

472

Tocorime Apicu: design and validation of an experimental search engine  

NASA Astrophysics Data System (ADS)

In the development of an integrated, experimental search engine, Tocorime Apicu, the incorporation and emulation of the evolutionary aspects of the chosen biological model (honeybees) and the field of high-performance knowledge discovery in databases results in the coupling of diverse fields of research: evolutionary computations, biological modeling, machine learning, statistical methods, information retrieval systems, active networks, and data visualization. The use of computer systems provides inherent sources of self-similarity traffic that result from the interaction of file transmission, caching mechanisms, and user-related processes. These user-related processes are initiated by the user, application programs, or the operating system (OS) for the user's benefit. The effect of Web transmission patterns, coupled with these inherent sources of self-similarity associated with the above file system characteristics, provide an environment for studying network traffic. The goal of the study was client-based, but with no user interaction. New methodologies and approaches were needed as network packet traffic increased in the LAN, LAN+WAN, and WAN. Statistical tools and methods for analyzing datasets were used to organize data captured at the packet level for network traffic between individual source/destination pairs. Emulation of the evolutionary aspects of the biological model equips the experimental search engine with an adaptive system model which will eventually have the capability to evolve with an ever- changing World Wide Web environment. The results were generated using a LINUX OS.

Walker, Reginald L.

2001-07-01

473

12. Detail of clutch and backup gasoline engine for powering ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

12. Detail of clutch and backup gasoline engine for powering Stoney gates. Clutch mechanism manufactured by Baldridge Machine Company, Detroit, Michigan, ca. 1910. Instrument to the left records volume of flow through headworks. View looking south towards Stoney gates. Photo by Jet Lowe, HAER, 1989. - Puget Sound Power & Light Company, White River Hydroelectric Project, 600 North River Avenue, Dieringer, Pierce County, WA

474

Stability analysis of free piston Stirling engine power generation system  

Microsoft Academic Search

This paper presents a stability analysis of the free-piston Stirling engine and linear alternator power generation system. Such a system operates under sustained mechanical oscillators, stability of the system is important for proper operation, and as a criterion in selecting the tuning capacitor. The stability criterion of the system is that the rate of change in power dissipation and electric

Z. X. Fu; S. A. Nasar; Mark Rosswurm

1992-01-01

475

The Gaze of the Perfect Search Engine: Google as an Infrastructure of Dataveillance  

NASA Astrophysics Data System (ADS)

Web search engines have emerged as a ubiquitous and vital tool for the successful navigation of the growing online informational sphere. The goal of the world's largest search engine, Google, is to "organize the world's information and make it universally accessible and useful" and to create the "perfect search engine" that provides only intuitive, personalized, and relevant results. While intended to enhance intellectual mobility in the online sphere, this chapter reveals that the quest for the perfect search engine requires the widespread monitoring and aggregation of a users' online personal and intellectual activities, threatening the values the perfect search engines were designed to sustain. It argues that these search-based infrastructures of dataveillance contribute to a rapidly emerging "soft cage" of everyday digital surveillance, where they, like other dataveillance technologies before them, contribute to the curtailing of individual freedom, affect users' sense of self, and present issues of deep discrimination and social justice.

Zimmer, M.

476

Engineers stretch power delivery systems with technology  

SciTech Connect

Efforts to increase electric power transmission capacity by four major distributors are described in the article. The Pennsylvania-Jersey-Maryland Power Pool restructuring for operation as an independent system operator is discussed, and equipment upgrades are briefly outlined. The Inex project of American Electric Power, which uses a unified power flow controller to operator a flexible alternating current transmission system (FACTS), is highlighted. Options being considered by Electricite de France are directed at making full use of existing resources; these include optimizing conductor alloy materials and shapes, operating at maximum conductor temperatures, and using FACTS technology to maintain voltages, adjust power flows, and improve network stability. Increasing capacity in the National Grid Company (NGC) system in the United Kingdom involves a combination of load sharing according to thermal capabilities. Technical considerations of NGCs measures to more evenly match load flows to line ratings are also discussed.

Beaty, W.

1996-09-01

477

Power recovery from turbine and gas engine exhausts  

SciTech Connect

Due to the energy consciousness of the United States and to the ever increasing cost of engine fuels, power recovery from turbine and gas engine exhausts has come of age. The addition of waste recovery systems to these exhausts increases the thermal efficiencies of typical systems from the range of 21% to 39% up to the range of 28% to 49%. The new ''expander'' type power recovery system includes a waste heat recovery exchanger which will transfer heat from the engine exhaust into any of numerous thermal fluids. The recovered heat energy now in the thermal fluid medium can, in turn, be used to produce power for any desired application (i.e. gas compression, process refrigeration, electrical power generation, etc.). The particular systems put forth in this paper concentrate on the use of expansion fluids (other than steam) driving ''expanders'' as motive devices.

Lawson, G.L.

1985-02-01

478

Palm Power Free-Piston Stirling Engine Control Electronics  

Microsoft Academic Search

A prototype 35We, JP-8 fueled, soldier-wearable power system for the DARPA Palm Power program has been developed and tested by Sunpower. A hermetically-sealed 42We Sunpower Free-Piston Stirling Engine (FPSE) with integral linear alternator is the prime mover for this system. To maximize system efficiency over a broad range of output power, a non-dissipative, highly efficient electronic control system which modulates

Douglas E. Keiter; Ezekiel Holliday

2007-01-01

479

Transporting submarine engines to power the PRT  

NASA Technical Reports Server (NTRS)

Inside the test section of the PRT. Laid out on the floor are the myriad parts needed for the final assembly of the diesel engines. In the back right corner are scales that would be used in the tunnel's balance. The dolly near the door under the entrance cone is for an oxy-acetelyne welding apparatus.

1926-01-01

480

Solar powered free-piston stirling engine  

Microsoft Academic Search

A method of controlling the operation of a free piston Stirling engine including a displacer piston having an integral electrical linear driver, an alternator piston driven by the displacer piston and including means for generating an electric current and variable volume gas springs in the cylinders for the displacer and alternator piston is described comprising the steps of: sensing the

1988-01-01

481

Electric power generation: Tidal and wave power. (Latest citations from the Aerospace database). Published Search  

SciTech Connect

The bibliography contains citations concerning the feasibility of obtaining electric power from ocean disturbances such as waves, swells, and tides. The engineering and economic aspects are emphasized. Theoretical analysis of the power plant potential of selected sites around the world is included. (Contains 250 citations and includes a subject term index and title list.)

Not Available

1994-12-01

482

In Search of Search Engine Marketing Strategy Amongst SME's in Ireland  

NASA Astrophysics Data System (ADS)

Researchers have identified the Web as a searchers first port of call for locating information. Search Engine Marketing (SEM) strategies have been noted as a key consideration when developing, maintaining and managing Websites. A study presented here of SEM practices of Irish small to medium enterprises (SMEs) reveals they plan to spend more resources on SEM in the future. Most firms utilize an informal SEM strategy, where Website optimization is perceived most effective in attracting traffic. Respondents cite the use of ‘keywords in title and description tags’ as the most used SEM technique, followed by the use of ‘keywords throughout the whole Website’; while ‘Pay for Placement’ was most widely used Paid Search technique. In concurrence with the literature, measuring SEM performance remains a significant challenge with many firms unsure if they measure it effectively. An encouraging finding is that Irish SMEs adopt a positive ethical posture when undertaking SEM.

Barry, Chris; Charleton, Debbie

483

CO2 laser-driven Stirling engine. [space power applications  

NASA Technical Reports Server (NTRS)

A 100-W Beale free-piston Stirling engine was powered remotely by a CO2 laser for long periods of time. The engine ran on both continuous-wave and pulse laser input. The working fluid was helium doped with small quantities of sulfur hexafluoride, SF6. The CO2 radiation was absorbed by the vibrational modes of the sulfur hexafluoride, which in turn transferred the energy to the helium to drive the engine. Electrical energy was obtained from a linear alternator attached to the piston of the engine. Engine pressures, volumes, and temperatures were measured to determine engine performance. It was found that the pulse radiation mode was more efficient than the continuous-wave mode. An analysis of the engine heat consumption indicated that heat losses around the cylinder and the window used to transmit the beam into the engine accounted for nearly half the energy input. The overall efficiency, that is, electrical output to laser input, was approximately 0.75%. However, this experiment was not designed for high efficiency but only to demonstrate the concept of a laser-driven engine. Based on this experiment, the engine could be modified to achieve efficiencies of perhaps 25-30%.

Lee, G.; Perry, R. L.; Carney, B.

1978-01-01

484

FUSION METHODS BASED ON COMMON ORDER INVARIABILITY FOR META SEARCH ENGINE SYSTEMS  

E-print Network

FUSION METHODS BASED ON COMMON ORDER INVARIABILITY FOR META SEARCH ENGINE SYSTEMS Xiaohua Yang Hui@ctit.zhnut.edu.cn hy92,minjie@uow.edu.au Abstract: Fusion is an important work for running meta search engine systems. A fusion algorithm is rational iff it can satisfy three conditions, i.e. the associativity, commutativity

Zhang, Minjie

485

A novel post-classifier for search engine using hidden Markov model  

Microsoft Academic Search

Hidden Markov models (HHMs), while well applied in fields such as speech recognition and optical character recognition, have not been used in post-classification for search engines. We explore the use of HMMs for optimization of search engines tasks, specifically focusing on how to construct a new model structure to improve the classification of web pages. We show that a manually

Zhi-Wu Liao; E. C. M. Lam; Y. Y. Tang

2002-01-01

486

Designing clustering-based web crawling policies for search engine crawlers  

Microsoft Academic Search

The World Wide Web is growing and changing at an astonishing rate. Web information systems such as search engines have to keep up with the growth and change of the Web. Due to resource constraints, search engines usually have difficulties keeping the local database completely synchronized with the Web. In this paper, we study how tomake good use of the

Qingzhao Tan; Prasenjit Mitra; C. Lee Giles

2007-01-01

487

Index Compression and Efficient Query Processing in Large Web Search Engines  

ERIC Educational Resources Information Center

The inverted index is the main data structure used by all the major search engines. Search engines build an inverted index on their collection to speed up query processing. As the size of the web grows, the length of the inverted list structures, which can easily grow to hundreds of MBs or even GBs for common terms (roughly linear in the size of…

Ding, Shuai

2013-01-01

488

Three-level caching for efficient query processing in large Web search engines  

Microsoft Academic Search

Large web search engines have to answer thousands of queries per second with interactive response times. Due to the sizes of the data sets involved, often in the range of multiple terabytes, a single query may require the processing of hundreds of megabytes or more of index data. To keep up with this immense workload, large search engines employ clusters

Xiaohui Long; Torsten Suel

2005-01-01

489

Three-Level Caching for Efficient Query Processing in Large Web Search Engines  

Microsoft Academic Search

ABSTRACT Large web search engines have to answer thousands of queries per second with interactive response times. Due to the sizes of the data sets involved, often in the range of multiple terabytes, a single query may,require the processing of hundreds,of megabytes or more of index data. To keep up with this immense workload, large search engines employ clusters of

Xiaohui Long; Torsten Suel

2006-01-01

490

Performance evaluation and comparison of the five most used search engines in retrieving web resources  

Microsoft Academic Search

Purpose – The purpose of the paper is to evaluate the performance and efficiency of the five most used search engines, i.e. Google, Yahoo!, Live, Ask, and AOL, in retrieving internet resources at specific points of time using a large number of complex queries. Design\\/methodology\\/approach – In order to examine the performance of the five search engines, five sets of

Sanjib K. Deka; Narendra Lahkar

2010-01-01

491

A three-year study on the freshness of web search engine databases  

Microsoft Academic Search

This paper deals with one aspect of the index quality of search engines: index freshness. The purpose is to analyse the update strategies of the major Web search engines Google, Yahoo, and MSN\\/Live.com. We conducted a test of the updates of 40 daily updated pages and 30 irregularly updated pages, respectively. We used data from a time span of six

Dirk Lewandowski

2008-01-01

492

Internet Search Engines and Opacs: Getting the Best of Two Worlds  

Microsoft Academic Search

This paper reports a pragmatic experiment, consisting on the integration of a Web search engine with a traditional library's catalogue. PORBASE is the Portuguese bibliographic union catalogue. It holds more than one million of bibliographic and nearly half a million of authoritative structured records about authors, families, organizations and subjects. tumba! is a search engine specialized in indexing web pages

José Luis Borbinha; Nuno Freire; Mário J. Silva; Bruno Martins

2003-01-01

493

WebSeer: An Image Search Engine for the World Wide Web1  

Microsoft Academic Search

Because of the size of the World Wide Web and its inherent lack of structure, finding what one is looking for can be a challenge. PC-Meter's March, 1996, survey found that three of the five most visited Web sites were search engines. However, while Web pages typically contain both text and images, all the currently available search engines only index

Charles Frankel; Michael J. Swain; Vassilis Athitsos

1996-01-01

494

The Value of Interdisciplinarity: A Study Based on the Design of Internet Search Engines.  

ERIC Educational Resources Information Center

Examines whether search engine design shows a pattern of interdisciplinarity focusing on two disciplines: computer science and library/information science. A citation analysis measured levels of interdisciplinary research and publishing in search engine design and development. Results show a higher level of interdisciplinarity among library and…

Herring, Susan Davis

1999-01-01

495

Design of personalized search engine based on user-webpage dynamic model  

NASA Astrophysics Data System (ADS)

Personalized search engine focuses on establishing a user-webpage dynamic model. In this model, users' personalized factors are introduced so that the search engine is better able to provide the user with targeted feedback. This paper constructs user and webpage dynamic vector tables, introduces singular value decomposition analysis in the processes of topic categorization, and extends the traditional PageRank algorithm.

Li, Jihan; Li, Shanglin; Zhu, Yingke; Xiao, Bo

2013-12-01

496

Finding Information on the World Wide Web: The Retrieval Effectiveness of Search Engines  

Microsoft Academic Search

Search engines are essential for finding information on the World Wide Web. We conducted a study to see how eÄective eight search engines are. Expert searchers sought information on the Web for users who had legitimate needs for information, and these users assessed the relevance of the information retrieved. We calculated traditional information retrieval measures of recall and precision at

Michael D. Gordon; Praveen Pathak

1999-01-01

497

Evaluation of proteomic search engines for the analysis of histone modifications.  

PubMed

Identification of histone post-translational modifications (PTMs) is challenging for proteomics search engines. Including many histone PTMs in one search increases the number of candidate peptides dramatically, leading to low search speed and fewer identified spectra. To evaluate database search engines on identifying histone PTMs, we present a method in which one kind of modification is searched each time, for example, unmodified, individually modified, and multimodified, each search result is filtered with false discovery rate less than 1%, and the identifications of multiple search engines are combined to obtain confident results. We apply this method for eight search engines on histone data sets. We find that two search engines, pFind and Mascot, identify most of the confident results at a reasonable speed, so we recommend using them to identify histone modifications. During the evaluation, we also find some important aspects for the analysis of histone modifications. Our evaluation of different search engines on identifying histone modifications will hopefully help those who are hoping to enter the histone proteomics field. The mass spectrometry proteomics data have been deposited to the ProteomeXchange Consortium with the data set identifier PXD001118. PMID:25167464

Yuan, Zuo-Fei; Lin, Shu; Molden, Rosalynn C; Garcia, Benjamin A

2014-10-01

498

Stability analysis of free piston Stirling engine power generation system  

NASA Astrophysics Data System (ADS)

This paper presents a stability analysis of the free-piston Stirling engine and linear alternator power generation system. Such a system operates under sustained mechanical oscillators, stability of the system is important for proper operation, and as a criterion in selecting the tuning capacitor. The stability criterion of the system is that the rate of change in power dissipation and electric power output is always faster than the rate of the power generated by the engine. The dynamic equations and model of the system are developed in this paper. Frequency domain analysis and Bode plot techniques are utilized in the study. The stable operating frequency region corresponding to different levels of power output are then determined.

Fu, Z. X.; Nasar, S. A.; Rosswurm, Mark

499

A Study of Metaindex Mechanisms for Selecting and Ranking Remote Search Engines *  

E-print Network

With the popularity of computer and network technologies, the number of web sites have rapidly increased, which has significantly stimulated the development of search engines. In recent years, a considerable number of search engines have been developed. The problem of how to find information on the Internet has been replaced with the problems of where to find the search engines, what they are designed to retrieve, and how to make the best use of them. Metasearch engine is a technique to cope with these problems by selecting and interfacing with multiple remote search engines at one time. One important issue on metasearch is how accurately it can select and rank feasible remote search engines for user queries. In this paper, a ratio-based metaindex approach is proposed for selecting remote search engines. Based on the novel approach, an experimental metasearch engine has been implemented. Some experimental results have shown that the accuracy and efficiency of the novel approach are more desirable than the famous metasearch engine SavvySearch.

Judy C. R. Tseng; Gwo-jen Hwang

500

A Customized Web Search Engine Using a Tiny WebSQL Query Language  

E-print Network

The World Wide Web (the Web) contains a huge collection of documents, which are connected by hyperlinks. The most common technology currently used for searching the Web depends on sending information-retrieval requests (search inputs) to "search engines", also known as "index servers", that index as many documents as they can find from the Web [5]. Each search engine uses software called "spider" or "robot" to collect information from the Web in order to create Web site entries. Those entries are then stored into the database of the search engine. When receiving search queries from users, search engines search based on Web site entries. This provides a search service at only the general level, where most spiders do not exploit the structure and topology of the document network. Based on this technique, users may find a lot of Web sites that are not related to the search input. Furthermore, in many search engines, users do not have any means to restrict the range of Web sites for the sp...

Attasith Patamarjarnkul

2000-01-01