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1
THE CLASSIFICATION OF ERRORS INVOLVED IN THE ...
1958-02-01

... Title : THE CLASSIFICATION OF ERRORS INVOLVED IN THE DETERMINATION OF CHANCES OF HIT, AND THE EVALUATION OF CHANCE ...

DTIC Science & Technology

2
Markovian analysis of cervical cell images
1976-01-01

Markovian analysis is a method to measure optical texture based on gray-level transition probabilities in digitized images. Experiments are described that investigate the classification performance of parameters generated by Markovian analysis. Results using Markov texture parameters show that the selection of a Markov step size strongly affects ...

Energy Citations Database

3
Minimum classification error training for online handwriting recognition.
2006-07-01

This paper describes an application of the Minimum Classification Error (MCE) criterion to the problem of recognizing online unconstrained-style characters and words. We describe an HMM-based, character and word-level MCE training aimed at minimizing the character or word error rate while enabling flexibility in writing style through ...

PubMed

4
Identification, Classification, and Frequency of Medical Errors ...

... Subject index to significant articles, news items, and editorials from ... Classification, and Frequency of Medical Errors in Outpatient Diabetes Care. ...

DTIC Science & Technology

5
Accuracy Assessment of the Discrete Classification of ...
1995-04-01

... April 1995 Accuracy Assessment of the Discrete Classification of Remotely- Sensed Digital ... classification's locational accuracy. The use of an error ...

DTIC Science & Technology

6
A Fast Approximated Evolutionary Approach to Improve SVM Accuracy
2011-01-01

Improving the classification performance is a crucial step of any machine learning method. In order to achieve a better classification Support Vector Machines need to tune parameters and to select relevant variables. To simultaneously perform both targets an embedded approach can be considered. This method consists of a two-layer ...

NASA Astrophysics Data System (ADS)

7
THE ESTIMATION OF THE PROBABILITY OF ERROR IN ...
1988-10-25

... ADD752902. Title : THE ESTIMATION OF THE PROBABILITY OF ERROR IN HUMAN/ATR CLASSIFICATION PERFORMANCE. ...

DTIC Science & Technology

8
Classification and reduction of pilot error
1989-01-01

Human error is a primary or contributing factor in about two-thirds of commercial aviation accidents

NASA Technical Reports Server (NTRS)

9
LOSS FUNCTIONS FOR BINARY CLASSIFICATION AND CLASS PROBABILITY ESTIMATION

, squared error loss, boosting loss (which we derive from boosting's exponential loss), and cost-weighted by concentrating () iii #12;near c. We also show that cost-weighting uncalibrated loss functions can achieve tailoring . . . . . . . . . . . . . . . . . 9 2.3 Cost-Weighted Misclassification Error Loss . . . . . . . . . . . . . . . ...

E-print Network

10
Halftone Image Classification Using LMS Algorithm and Naive Bayes.
2011-10-01

Former research on inverse halftoning most focus on developing a general-purpose method for all types of halftone patterns, such as error diffusion, ordered dithering, etc., while fail to consider the natural discrepancies among various halftoning methods. To achieve optimal image quality for each halftoning method, the classification ...

PubMed

11
Geometrically robust perceptual fingerprinting: an asymmetric case
2011-02-01

In this paper, the problem of multimedia object identification in channels with asymmetric desynchronizations is studied. First, we analyze the achievable rates attainable in such protocols within digital communication framework. Secondly, we investigate the impact of the fingerprint length on the error performance of these protocols relaxing the capacity ...

NASA Astrophysics Data System (ADS)

12
HMM-FRAME: accurate protein domain classification for metagenomic sequences containing frameshift errors
2011-05-24

BackgroundProtein domain classification is an important step in metagenomic annotation. The state-of-the-art method for protein domain classification is profile HMM-based alignment. However, the relatively high rates of insertions and deletions in homopolymer regions of pyrosequencing reads create frameshifts, causing conventional profile HMM alignment ...

PubMed Central

13
Classification of Event-Related Potentials Associated with Response Errors in Actors and Observers Based on Autoregressive Modeling
2009-05-15

Event-Related Potentials (ERPs) provide non-invasive measurements of the electrical activity on the scalp related to the processing of stimuli and preparation of responses by the brain. In this paper an ERP-signal classification method is proposed for discriminating between ERPs of correct and incorrect responses of actors and of observers seeing an actor making such ...

PubMed Central

14
Weighted Parzen Windows for Pattern Classification
1994-05-01

... 49 5.21 Classification error for k-nearest-neighbor ..... 49 ... eq Quantization error. 9t Region of d-dimensional space. ...

DTIC Science & Technology

15
SAR image classification with a directional-oriented discrete Hermite Transform
2003-03-01

This paper presents a novel classification scheme for SAR images based on the perceptual classification of image patterns in the Discrete Hermite Transform (DHT) domain over a roughly hexagonal sampling lattice. The DHT analyzes a signal through a set of binomial filters which approximate the Gaussian derivatives with the advantage that they are computed ...

NASA Astrophysics Data System (ADS)

16
Determining the optimal window length for pattern recognition-based myoelectric control: balancing the competing effects of classification error and controller delay.
2010-12-30

Pattern recognition-based control of myoelectric prostheses has shown great promise in research environments, but has not been optimized for use in a clinical setting. To explore the relationship between classification error, controller delay, and real-time controllability, 13 able-bodied subjects were trained to operate a virtual upper-limb prosthesis ...

PubMed

17
Estimation of decision consistency indices for complex assessments: model based approaches.
2008-01-01

With the implementation of the No Child Left Behind assessment program and the use of proficiency levels as a means of evaluating Annual Yearly Progress, there is a renewed interest in the consistency of classification decisions based on scale scores from achievement test and state-wide proficiency standards. Many of the current methods described in the ...

PubMed

18
N-Gram-Based Text Categorization
1994-01-01

Text categorization is a fundamental task in document processing, allowing the automated handling of enormous streams of documents in electronic form. One difficulty in handling some classes of documents is the presence of different kinds of textual errors, such as spelling and grammatical errors in email, and character recognition ...

E-print Network

19
Taxonometric Guidance for Developing Quality Assurance
2008-05-01

A taxonomy is an ordered classification system. In error reduction analysis, an examination of the human failures that lead to an event often uses a taxonomy to classify the failures according to some aspect of their characteristics. These classifications provide insights into the forces that kept the persons involved from ...

Energy Citations Database

20
Achievements and attitudinal patterns of boys and girls in science
1991-01-01

Data from the 1983-84 Israeli IEA (International Association for the Evaluation of Education Achievement) science study were used to explore gender-related differences (and their determinants) in the learning of science. The sample was composed of 1,934 ninth-grade students. The study involved several measures of science learning, ten attitudinal measures, and items and ...

NASA Astrophysics Data System (ADS)

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21
Forest statistics for east Texas counties, 1992. Forest Service Resource Bulletin
1992-12-01

The report contains statistical tables and figures derived from data obtained during a recent inventory of east Texas. The multiresource inventory included 43 counties and two survey regions. Classification of forest-nonforest points was accomplished, each representing approximately 230 acres. The sampling methods are designed to achieve suitable sampling ...

Energy Citations Database

22
Identification, Classification, and Frequency of Medical Errors ...
2011-05-13

... of Medical Errors in Outpatient Diabetes Care ... Abstract Objectives: Diabetes-related medical errors in outpatient practice are common and costly. ...

DTIC Science & Technology

23
ECoG Based Brain Computer Interface with Subset Selection
2009-01-01

We describe an adaptive approach for the classification of multichannel neural recordings for a brain computer interface. A dual-tree undecimated wavelet packet transform generates a structured redundant feature dictionary with different time-frequency resolutions computed on multichannel neural recordings. Rather than evaluating the individual discrimination performance of ...

NASA Astrophysics Data System (ADS)

24
Decompositive Classification Models For Electronic Noses
2001-01-01

The classification of 242 measurements in 14 classes is attempted using two di#erent classification approaches. Measurements have been performed with a commercial Electronic Nose comprising 11 chemical sensors on extra-virgin olive oils of 14 different geographical provenances. As we deal with a relatively small data set and a big number of classes, the ...

E-print Network

25
GENERATION AND ENCODING OF THE PROJECT INTREX ...
1968-08-01

... Descriptors : *INFORMATION RETRIEVAL, *CATALOGS, *SUBJECT INDEXING ... SHARING, INDEXES, RECORDS, CLASSIFICATION, ERRORS. ...

DTIC Science & Technology

26
Semi-supervised classification via local spline regression.
2010-11-01

This paper presents local spline regression for semi-supervised classification. The core idea in our approach is to introduce splines developed in Sobolev space to map the data points directly to be class labels. The spline is composed of polynomials and Green's functions. It is smooth, nonlinear, and able to interpolate the scattered data points with high accuracy. ...

PubMed

27
AUTOMATIC CLASSIFICATION OF QUESTION TURNS IN SPONTANEOUS SPEECH USING LEXICAL AND PROSODIC EVIDENCE.
2008-01-01

The ability to identify speech acts reliably is desirable in any spoken language system that interacts with humans. Minimally, such a system should be capable of distinguishing between question-bearing turns and other types of utterances. However, this is a non-trivial task, since spontaneous speech tends to have incomplete syntactic, and even ungrammatical, structure and is characterized by ...

PubMed

28
On Machine-learned Classification of Variable Stars with Sparse and Noisy Time-series Data
2011-05-01

With the coming data deluge from synoptic surveys, there is a need for frameworks that can quickly and automatically produce calibrated classification probabilities for newly observed variables based on small numbers of time-series measurements. In this paper, we introduce a methodology for variable-star classification, drawing from modern machine-learning ...

NASA Astrophysics Data System (ADS)

29
Gene selection for classification of microarray data based on the Bayes error
2007-10-03

BackgroundWith DNA microarray data, selecting a compact subset of discriminative genes from thousands of genes is a critical step for accurate classification of phenotypes for, e.g., disease diagnosis. Several widely used gene selection methods often select top-ranked genes according to their individual discriminative power in classifying samples into distinct categories, ...

PubMed Central

30
Using phase space reconstruction for patient independent heartbeat classification in comparison with some benchmark methods.
2011-05-04

Many methods for automatic heartbeat classification have been applied and reported in literature, but relatively few of them concerned with patient independent classification because of the less significant results compared to patient dependent ones. In this work, using phase space reconstruction in order to classify five heartbeat types can fill this gap ...

PubMed

31
Agricultural Land Use classification from Envisat MERIS
2009-04-01

This study focuses on evaluation of a crop classification from middle-resolution images (Envisat MERIS) at national level. The main goal of such Land Use product is to provid spatial data for optimisation of monitoring of surface and groundwater pollution in the Czech Republic caused by pesticides use in agriculture. As there is a lack of spatial data on the pesticide use and ...

NASA Astrophysics Data System (ADS)

32
Classification and Error Estimation for Discrete Data
2009-11-01

Discrete classification is common in Genomic Signal Processing applications, in particular in classification of discretized gene expression data, and in discrete gene expression prediction and the inference of boolean genomic regulatory networks. Once a discrete classifier is obtained from sample data, its performance must be evaluated through its ...

PubMed Central

33
Artificial intelligence environment for the analysis and classification of errors in discrete sequential processes
1985-01-01

The study evolved over two phases. First, an existing artificial intelligence technique, heuristic state space search, was used to successfully address and resolve significant issues that have prevented automated error classification in the past. A general method was devised for constructing heuristic functions to guide the search process, which ...

Energy Citations Database

34
Similarity Measures on Binary Attribute Data.
1979-01-01

The ability of commonly used similarity coefficients to recapture natural classifications in the presence of various types of errors is investigated by means of several computer simulations of a certain model of the classification problem. The goal is to ...

National Technical Information Service (NTIS)

35
Array Signal Processing Under Model Errors With Application ...
1992-10-31

... 35 4.2.1 MUltiple SIgnal Classification (MUSIC) .... 37 ... called MUltiple SIgnal Classification (MUSIC) and Estimation of Signals Parameters ...

DTIC Science & Technology

36
THE CLASSIFICATION OF ERRORS INVOLVED IN THE ...
1958-02-01

... 4 and a fictitious HH shell fired from the 20 pr tank gun in Centurion ... usual) that the total errors in line and elevation are sufficiently Gaussian in form ...

DTIC Science & Technology

37
Empirical Analyses of Plant-Climate Relationships for the Western ...

Jun 16, 2011 ... Classification errors for community models averaged 19%, but the errors were reduced by half when adjusted for misalignment between ...

Treesearch

38
An Analysis of Stopping Criteria in Artificial Neural Networks
1994-03-01

... AN ANALYSIS OF STOPPING CRITERIA ... 4.5.2 The Total Absolute Error Conclusions. ... decreased, the classification error rate and the variance of ...

DTIC Science & Technology

39
The Predictive Accuracy of Verbal, Quantitative, and Nonverbal Reasoning Tests: Consequences for Talent Identification and Program Diversity
2010-12-01

Effective talent-identification procedures minimize the proportion of students whose subsequent performance indicates that they were mistakenly included in or excluded from the program. Classification errors occur when students who were predicted to excel subsequently do not excel or when students who were not predicted to excel do. Using a longitudinal ...

ERIC Educational Resources Information Center

40
Partly based on: A. Witoelar, M. Biehl, and B. Hammer � "Equilibrium properties of offline LVQ", In M. Verleysen, editor, Proc. Of European Symposium on Neural Networks (ESANN) 2009, d-side, Evere,

a limit- ing case of generalized LVQ (GLVQ) termed LVQ 2.1, learning from mistakes (LFM) and Robust Soft the generalization error at different sizes of the training set. In our findings, LFM achieves poor classification several important LVQ schemes: a limiting case of GLVQ, Learning From Mistakes (LFM) and Robust Soft LVQ

E-print Network

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41
Noise-Tolerant Hyperspectral Signature Classification in Unresolved Object Detection with Adaptive Tabular Nearest Neighbor Encoding
2008-01-01

Accurate spectral signature classification is a crucial step in the nonimaging detection and recognition of spaceborne objects. In classical hyperspectral recognition applications, especially where linear mixing models are employed, signature classification accuracy depends on accurate spectral endmember discrimination. In selected target recognition (ATR) ...

NASA Astrophysics Data System (ADS)

42
Algorithms for Hyperspectral Signature Classification in Non-resolved Object Characterization Using Tabular Nearest Neighbor Encoding
2007-01-01

Accurate spectral signature classification is key to the nonimaging detection and recognition of spaceborne objects. In classical hyperspectral recognition applications, signature classification accuracy depends on accurate spectral endmember determination [1]. However, in selected target recognition (ATR) applications, it is possible to circumvent the ...

NASA Astrophysics Data System (ADS)

43
Learning Aptitude, Error Tolerance, and Achievement Level as ...
1979-09-01

... DTIC Online - This search queries the DTIC Online Public Web site. ... Aptitude, Error Tolerance, and Achievement Level as Factors of Performance in ...

DTIC Science & Technology

44
Confident Predictability: Identifying reliable gene expression patterns for individualized tumor classification using a local minimax kernel algorithm
2011-01-24

BackgroundMolecular classification of tumors can be achieved by global gene expression profiling. Most machine learning classification algorithms furnish global error rates for the entire population. A few algorithms provide an estimate of probability of malignancy for each queried patient but the degree of ...

PubMed Central

45
Gene selection for classification of microarray data based on the Bayes error
2007-01-01

The proposed method can effectively identify a compact set of genes with high classification accuracy. This study also indicates that application of the Bayes error is a feasible and effective wayfor removing redundant genes in gene selection.

E-print Network

46
Classification Error Survey for the United States Census of Agriculture, 2007.
2009-01-01

Following the 2002 Census of Agriculture, a Classification Error Study was conducted to estimate the number of operations misclassified (either as farms or non-farms) in the census. This was done by matching operations who reported in the Area Frame June ...

National Technical Information Service (NTIS)

47
Exploring hedge identification in biomedical literature.
2008-01-11

We investigate automatic identification of speculative language, or 'hedging', in scientific literature from the biomedical domain. Our contributions include a precise description of the task including annotation guidelines, theoretical analysis and discussion. We show that good agreement can be achieved using our guidelines and present a publicly available benchmark dataset ...

PubMed

48
Classification of Arteries and Veins in Retinal Images using Vessel Profile Features
2011-06-01

In this work an automated method is introduced to distinguish arteries from veins in eye fundus images. The main challenges of this task are the similarity of the two vessel types and the vast variability in different images. We assume that the vasculature is already extracted and represented by vessel segments. Based on local image features, vessel profile characteristics are extracted and used ...

NASA Astrophysics Data System (ADS)

49
Automatic induction of projection pursuit indices.
2010-07-12

Projection techniques are frequently used as the principal means for the implementation of feature extraction and dimensionality reduction for machine learning applications. A well established and broad class of such projection techniques is the projection pursuit (PP). Its core design parameter is a projection index, which is the driving force in obtaining the transformation function via ...

PubMed

50
AdaBoost classification for model-based segmentation of the outer wall of the common carotid artery in CTA
2008-04-01

A novel 2D slice based fully automatic method for model based segmentation of the outer vessel wall of the common carotid artery in CTA data set is introduced. The method utilizes a lumen segmentation and AdaBoost, a fast and robust machine learning algorithm, to initially classify (mark) regions outside and inside the vessel wall using the distance from the lumen and intensity profiles sampled ...

NASA Astrophysics Data System (ADS)

51
Implementation of neural networks for classification of moss and lichen samples on the basis of gamma-ray spectrometric analysis.
2006-10-21

Mosses and lichens have an important role in biomonitoring. The objective of this study is to develop a neural network model to classify these plants according to geographical origin. A three-layer feed-forward neural network was used. The activities of radionuclides ((226)Ra, (238)U, (235)U, (40)K, (232)Th, (134)Cs, (137)Cs and (7)Be) detected in plant samples by gamma-ray spectrometry were used ...

PubMed

52
Customizing kernel functions for SVM-based hyperspectral image classification.
2008-04-01

Previous research applying kernel methods such as support vector machines (SVMs) to hyperspectral image classification has achieved performance competitive with the best available algorithms. However, few efforts have been made to extend SVMs to cover the specific requirements of hyperspectral image classification, for example, by ...

PubMed

53
Reduced Classification Error Probability with Ternary Correlation Filters
1993-01-01

Much of the filter design work that has been performed to date for filter SLMs with both constrained

NASA Technical Reports Server (NTRS)

54
Quantum Error Correction
2005-07-06

... 15. SUBJECT TERMS Quantum Information Science, Quantum Algorithms, Quantum Cryptography 16. SECURITY CLASSIFICATION OF: 17. ...

DTIC Science & Technology

55
Prediction and Classification of Operational Errors and ...
2007-07-01

... such as merging and spacing, Standard Terminal ... initiati es to keep aircraft spaced, either by ... Using knowledge exploration tools to study airspace ...

DTIC Science & Technology

56
MODIS Website

MODIS Reports Link � MODIS Science Team Meetings Link ... combination and adjacent temporal deduction can reduce cloud obscuration and classification errors ...

NASA Website

57
Item Construction and Psychometric Models Appropriate for ...
1991-08-01

... Page 22. 16 classification boundary of two groups of "fuzzy" response ... space') that is capable of diagnosing cognitive errors. Rule ...

DTIC Science & Technology

58
Complexity Measure Revisited: A New Algorithm for ...
2001-10-25

... Complexity Measure of ECG signals for the classification of cardiac arrhythmia's. ... performance, especially for SR signals, and an overall error rate of ...

DTIC Science & Technology

59
Automatic Target Recognition User Interface Tool
2007-03-01

... AUTOMATIC, GRAPHICAL USER INTERFACE, LABELS, TARGET CLASSIFICATION, ERRORS, COSTS, PROBABILITY, TOOLS, INTERFACES. ...

DTIC Science & Technology

60
Automatic Quality Inspection of Percussion Cap Mass Production by Means of 3D Machine Vision and Machine Learning Techniques
2010-01-01

The exhaustive quality control is becoming very important in the world's globalized market. One of these examples where quality control becomes critical is the percussion cap mass production. These elements must achieve a minimum tolerance deviation in their fabrication. This paper outlines a machine vision development using a 3D camera for the inspection of the whole ...

NASA Astrophysics Data System (ADS)

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61
Errors in general practice: development of an error classification and pilot study of a method for detecting errors
2003-12-01

Objective: To describe a classification of errors and to assess the feasibility and acceptability of a method for recording staff reported errors in general practice. Design: An iterative process in a pilot practice was used to develop a classification of errors. This was incorporated in an ...

PubMed Central

62
A Performance Complexity Study of Several Approaches to Automatic Target Recognition from Synthetic Aperture Radar Images
1999-01-01

A framework which allows for the direct comparison of alternate approaches to automatic target recognition (ATR) from synthetic aperture radar (SAR) images is described and applied to variants of several ATR algorithms. This framework allows comparisons to be made on an even footing while minimizing the impact of implementation details and accounts for variation in image sizes, in angular ...

E-print Network

63
Final Report: Weighted Neighbor Data Mining
2000-12-01

Data mining involves the discovery and fusion of features from large databases to establish minimal probability of error (MPE) decision and estimation models. Our approach combines a weighted nearest neighbor (WNN) decision model for classification and estimation with genetic algorithms (GA) for feature discovery and model optimization. The WNN model is ...

DOE Information Bridge

64
Classification of single trial motor imagery EEG recordings with subject adapted non-dyadic arbitrary time-frequency tilings.
2006-07-20

We describe a new technique for the classification of motor imagery electroencephalogram (EEG) recordings in a brain computer interface (BCI) task. The technique is based on an adaptive time-frequency analysis of EEG signals computed using local discriminant bases (LDB) derived from local cosine packets (LCP). In an offline step, the EEG data obtained from the C(3)/C(4) ...

PubMed

65
Multiscale retinex for improved performance in multispectral image classification
2000-06-01

Image preprocessing is useful in helping to identify `spectral response patterns' for certain types of image classification problems. The common artifacts in remotely sensed images are caused by the blurring due to the optics of the image gathering device, illumination variations, and the radiative transfer of the atmosphere. The Multi-Scale Retinex (MSR) image enhancement ...

NASA Astrophysics Data System (ADS)

66
Reduction of classification error rates and monitoring system using an artificial class
2010-06-29

Systems and methods for enhancing the accuracy of classifying a measurement by providing an artificial class. Seizure prediction systems may employ a classification system including an artificial class and a user interface for signaling uncertainty in classification when a measurement is classified in the artificial class.

US Patent & Trademark Office Database

67
Comparison of Classification Algorithms on MSTAR Data ...
2009-09-22

... AER Actual Error Rate AUC Area Under the ROC Curve pj Class Prevalence cij Classification Cost C Classification Cost Matrix [C]ij = cij �ij(A ...

DTIC Science & Technology

68
Medication administration errors and the pediatric population: a systematic search of the literature.
2010-12-01

There are a variety of factors that make the pediatric population more susceptible to medication errors and potential complications resulting from medication administration including the availability of different dosage forms of the same medication, incorrect dosing, lack of standardized dosing regimen, and organ system maturity. A systematic literature search on medication ...

PubMed

69
Identification, Classification, and Frequency of Medical Errors in Outpatient Diabetes Care.
2005-01-01

Diabetes-related medical errors in outpatient practice are common and costly. This study attempts to accurately identify, classify, and interpret patterns of diabetes-related medical errors in primary care settings using diagnostic, laboratory, and pharma...

National Technical Information Service (NTIS)

70
Effect of Dose Ascertainment Errors on Observed Risk.
1984-01-01

Inaccuracies in dose assignments can lead to misclassification in epidemiological studies. The extent of this misclassification is examined for different error functions, classification intervals, and actual dose distributions. The error function model is...

National Technical Information Service (NTIS)

71
Boosting accuracy of automated classification of fluorescence microscope images for location proteomics
2004-06-18

BackgroundDetailed knowledge of the subcellular location of each expressed protein is critical to a full understanding of its function. Fluorescence microscopy, in combination with methods for fluorescent tagging, is the most suitable current method for proteome-wide determination of subcellular location. Previous work has shown that neural network classifiers can distinguish all major protein ...

PubMed Central

72
Acquiring Research-grade ALSM Data in the Commercial Marketplace
2003-12-01

The Puget Sound Lidar Consortium, working with TerraPoint, LLC, has procured a large volume of ALSM (topographic lidar) data for scientific research. Research-grade ALSM data can be characterized by their completeness, density, and accuracy. Complete data include-at a minimum-X, Y, Z, time, and classification (ground, vegetation, structure, blunder) for each laser reflection. ...

NASA Astrophysics Data System (ADS)

73
Minimal Achievable Error in the LED problem

Minimal Achievable Error in the LED problem Xavier Llora and David E. Goldberg IlliGAL Report No Achievable Error in the LED problem Xavier Llora # and David E. Goldberg Illinois Genetic Algorithms a theoretical model to predict the minimal achievable error, given a noise ...

E-print Network

74
Automated Textile Defect Recognition System Using Computer Vision and Artificial Neural Networks
2006-01-01

Least Development Countries (LDC) like Bangladesh, whose 25 % revenue earning is achieved from Textile export, requires producing less defective textile for minimizing production cost and time. Inspection processes done on these industries are mostly manual and time consuming. To reduce error on identifying fabric defects requires more automotive and ...

E-print Network

75
Mapping urban and peri-urban agriculture using high spatial resolution satellite data
2009-03-01

In rapidly changing peri-urban environments where biophysical and socio-economic processes lead to spatial fragmentation of agricultural land, remote sensing offers an efficient tool to collect land cover/land use (LCLU) data for decision-making. Compared to traditional pixel-based approaches, remote sensing with object-based classification methods is reported to ...

NASA Astrophysics Data System (ADS)

76
K-D Decision Tree: An Accelerated and Memory Efficient Nearest Neighbor Classifier
2010-01-01

This paper presents a novel algorithm for Nearest Neighbor (NN) classifier. NN classification is a well-known method of pattern classification having the following properties: * it performs maximum-margin classification and achieves less than twice the ideal Bayesian error, * it does not ...

NASA Astrophysics Data System (ADS)

77
The combination approach of SVM and ECOC for powerful identification and classification of transcription factor
2008-06-16

BackgroundTranscription factors (TFs) are core functional proteins which play important roles in gene expression control, and they are key factors for gene regulation network construction. Traditionally, they were identified and classified through experimental approaches. In order to save time and reduce costs, many computational methods have been developed to identify TFs from new proteins and to ...

PubMed Central

78
Classification and analysis of the errors in neuronavigation.
2011-04-01

There are many different types of errors in neuronavigation, and the reasons and results of these errors are complex. For a neurosurgeon using the neuronavigation system, it is important to have a clear understanding of when an error may occur, what the magnitude of it is, and how to avoid it or reduce its influence on the final ...

PubMed

79
HARMONY: Efficiently Mining the Best Rules for Classification
2004-09-16

... result set, which helps a lot in achieving high classification accuracy. By introducing several novel search strategies and pruning methods into the ...

DTIC Science & Technology

80
Photoacoustic discrimination of vascular and pigmented lesions using classical and Bayesian methods
2010-03-01

Discrimination of pigmented and vascular lesions in skin can be difficult due to factors such as size, subungual location, and the nature of lesions containing both melanin and vascularity. Misdiagnosis may lead to precancerous or cancerous lesions not receiving proper medical care. To aid in the rapid and accurate diagnosis of such pathologies, we develop a photoacoustic system to determine the ...

PubMed Central

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81
Photoacoustic discrimination of vascular and pigmented lesions using classical and Bayesian methods
2010-01-01

Discrimination of pigmented and vascular lesions in skin can be difficult due to factors such as size, subungual location, and the nature of lesions containing both melanin and vascularity. Misdiagnosis may lead to precancerous or cancerous lesions not receiving proper medical care. To aid in the rapid and accurate diagnosis of such pathologies, we develop a photoacoustic system to determine the ...

NASA Astrophysics Data System (ADS)

82
New methods of H-SVMs for the classification of multi-spectral remote sensing imagery
2008-10-01

Through systematically analysises of existing multi-class SVMs (M-SVMs) methods, it is shown that hierarchy multi-class SVMs (H-SVMs) can be relatively effective. Further analysis shown that existing methods that measure separability between different classes are not suitable for kernel feature space. A new method is presented for separability measure in feature space based on the characters of ...

NASA Astrophysics Data System (ADS)

83
Measurement strategy and instrumental performance of a computer screen photo-assisted technique for the evaluation of a multi-parameter colorimetric test strip.
2005-11-23

A measuring strategy for the evaluation of a seven parameters colorimetric test using a computer screen photo-assisted technique (CSPT) is demonstrated. CSPT is a versatile approach aimed at point of care or home tests that uses regular computer sets and web cameras as the whole instrument. Issues such as the stability and the equivalency on different platforms of the determinations have been ...

PubMed

84
Classification of gilthead sea bream (Sparus aurata) from 1H NMR lipid profiling combined with principal component and linear discriminant analysis.
2007-10-31

The combination of (1)H NMR fingerprinting of lipids from gilthead sea bream (Sparus aurata) with nonsupervised and supervised multivariate analysis was applied to differentiate wild and farmed fish and to classify farmed specimen according to their areas of production belonging to the Mediterranean basin. Principal component analysis (PCA) applied on processed (1)H NMR profiles made a clear ...

PubMed

85
Automated Morphological Classification of Galaxies and the Morphology-Density Relation
1998-12-01

We present preliminary results of a study to evaluate which is the more fundamental relationship in galaxy morphology within galaxy clusters -- the local density of the galaxy environment or the projected distance of the galaxy from the cluster center. The completed sample will contain 107 Abell clusters, including all northern Abell clusters with distance class <= 4 and richness class >= 1 ...

NASA Astrophysics Data System (ADS)

86
An adapted Gaussian mixture model approach to accelerometry-based movement classification using time-domain features.
2006-01-01

The accurate classification of everyday movements from accelerometry data will provide a significant step towards the development of effective ambulatory monitoring systems for falls detection and prediction. The search continues for optimal front-end processing methods for use in accelerometry systems. Here, we propose a novel set of time domain features, which ...

PubMed

87
A Hybrid BPSO-CGA Approach for Gene Selection and Classification of Microarray Data.
2011-01-01

Abstract Microarray analysis promises to detect variations in gene expressions, and changes in the transcription rates of an entire genome in vivo. Microarray gene expression profiles indicate the relative abundance of mRNA corresponding to the genes. The selection of relevant genes from microarray data poses a formidable challenge to researchers due to the high-dimensionality of features, ...

PubMed

88
Evaluation of gender classification methods with automatically detected and aligned faces.
2008-03-01

We present a systematic study on gender classification with automatically detected and aligned faces. We experimented with 120 combinations of automatic face detection, face alignment and gender classification. One of the findings was that the automatic face alignment methods did not increase the gender classification rates. However, ...

PubMed

89
Evolving edited k-nearest neighbor classifiers.
2008-12-01

The k-nearest neighbor method is a classifier based on the evaluation of the distances to each pattern in the training set. The edited version of this method consists of the application of this classifier with a subset of the complete training set in which some of the training patterns are excluded, in order to reduce the classification error rate. In ...

PubMed

90
Selection of generative models in classification.
2006-04-01

This paper is concerned with the selection of a generative model for supervised classification. Classical criteria for model selection assess the fit of a model rather than its ability to produce a low classification error rate. A new criterion, the Bayesian Entropy Criterion (BEC), is proposed. This criterion takes into account the ...

PubMed

91
Quantitative Evaluation of Dependence among Outputs in ECOC Classifiers Using Mutual Information Based Measures
2001-01-01

In previous work, it has been experimentally shown that the implementation of Error Correcting Output Coding (ECOC) classification methods with an ensemble of parallel and independent non linear dichotomizers (ECOC PND) outperforms the implementation with a single monolithic multi layer perceptron (ECOC MLP). This result was ascribed to the higher ...

E-print Network

92
Introducing New Indices for Accuracy Evaluation of Classified Images Representing

. TheIndividual Classification Success Index (ICSI) is introduced which accounts for the classification of this index is given as ICSI = 1 - (Errorof Omission % +Error of Commission %) (16) Often, in producing maps for each class;errors of commission per class; errors of omission per ...

E-print Network

93
Chapter 2 Code-Based Test-Case Selection Method

is an integer equal to the number of times the i-th edge is used in forming the path. Thus, if we arrange. Huang 2009 Software Error Detection - Chapter 2 146 CW+C error classification method (contin - Chapter 2 147 CW+C error classification method (contin'd) Thus we have a canonical ...

E-print Network

94
Model-based responses and features in Brain Computer Interfaces.
2008-01-01

Novel model based features are introduced in the discrimination of motor imagery tasks using human scalp electroencephalography (EEG) towards the development of Brain Computer Interfaces (BCI). We have acquired human scalp EEG under open-loop and feedback conditions in response to cue-based motor imagery tasks. EEG signals, transformed into frequency specific bands such as mu, beta and movement ...

PubMed

95
Computer-aided differential diagnosis in movement disorders using MRI morphometry
2007-03-01

Background: Reported error rates for initial clinical diagnosis in parkinsonian disorders can reach up to 35%. Reducing this initial error rate is an important research goal. The objective of this work is to evaluate the ability of an automated MR-based classification technique in the differential diagnosis of Parkinson's disease (PD), ...

NASA Astrophysics Data System (ADS)

96
Robust EZW Image Coding For Noisy Channels *

channel error resilience for a specific channel bit error rate (BER), but higher resilience can still be achieved by decreasing the sensitivity ...

NASA Website

97
Shooting craps in search of an optimal strategy for training connectionist pattern classifiers
1992-01-01

We compare two strategies for training connectionist (as well as non-connectionist) models for statistical pattern recognition. The probabilistic strategy is based on the notion that Bayesian discrimination (i.e., optimal classification) is achieved when the classifier learns the a posteriori class distributions of the random feature vector. The ...

E-print Network

98
Five-way smoking status classification using text hot-spot identification and error-correcting output codes.
2007-10-18

We participated in the i2b2 smoking status classification challenge task. The purpose of this task was to evaluate the ability of systems to automatically identify patient smoking status from discharge summaries. Our submission included several techniques that we compared and studied, including hot-spot identification, zero-vector filtering, inverse class frequency weighting, ...

PubMed

99
Partitioning histopathological images: an integrated framework for supervised color-texture segmentation and cell splitting.
2011-04-11

For quantitative analysis of histopathological images, such as the lymphoma grading systems, quantification of features is usually carried out on single cells before categorizing them by classification algorithms. To this end, we propose an integrated framework consisting of a novel supervised cell-image segmentation algorithm and a new touching-cell splitting method. For the ...

PubMed

100
Achieving Undelayed Initialization in Monocular SLAM with Generalized Objects Using Velocity Estimate-based Classification

classification using velocity estimates from SLAM with GO should be feasible. B. Thresholding ClassificationAchieving Undelayed Initialization in Monocular SLAM with Generalized Objects Using Velocity classification method using the velocity estimates directly from SLAM with GO. Compared to the existing approach

E-print Network

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101
Soft Classification of Diffractive Interactions at the LHC
2011-07-01

Multivariate machine learning techniques provide an alternative to the rapidity gap method for event-by-event identification and classification of diffraction in hadron-hadron collisions. Traditionally, such methods assign each event exclusively to a single class producing classification errors in overlap regions of data space. As an ...

NASA Astrophysics Data System (ADS)

102
Poland and the United States: Achieving American National ...
1990-09-01

... TITLE (Inciuae Securit'y Classification) POLAND AND THE UNITED STATES: ACHIEVING AMERICAN NATIONA'L INTERESTS IN EASTERN ...

DTIC Science & Technology

103
Youth Poll Report and Crosstabulations
2004-11-01

... On classified documents, enter the title classification in ... Age � Gender � Race/ethnicity ... predicts youth educational aspirations and achievement. ...

DTIC Science & Technology

104
Trauma Care Classification. Phase 1
1996-10-01

... The major achievements of the Phase I study include: (1) Establishment of a Gaussian Potential Function Network (GPFN) architecture that allows ...

DTIC Science & Technology

105
PREDICTION OF SUCCESS IN TECHNICAL TRAINING ...
1963-04-01

... c' I on Educational Achievement By Cm.. ... Educational information about recruits was evaluated for its poten- tial contribution to airman classification. ...

DTIC Science & Technology

106
In Search of Monsters to Destroy: American Empire in the New ...
2011-05-13

... the African continent stares at virtual extinction ... In sum, rigid academic classification should not ... criminals � a principal achievement of monarchs in ...

DTIC Science & Technology

107
Classification of Communication Signals and Detection of ...
2006-12-01

... and Detection of Unknown Formats Using Artificial Neural Networks. ... of two different neural network types, and ... of the neural networks and achieve ...

DTIC Science & Technology

108
Soft margin estimation of hidden Markov model parameters
2006-01-01

We propose a new discriminative learning framework, called soft margin estimation (SME), for estimating parameters of continuous density hidden Markov models. The proposed method makes direct usage of the successful ideas of soft margin in support vector machines to improve generalization capability, and of decision feedback learning in minimum classification ...

E-print Network

109
Simulated dyslexia in postsecondary students: description and detection using embedded validity indicators.
2010-12-22

The current investigation identified characteristics that discriminated authentic dyslexia from its simulation using measures common to postsecondary learning disability evaluations. Analyses revealed accurate simulation on most achievement measures but inaccurate feigning on neurolinguistic processing measures, speed on timed tasks, and error quantity. ...

PubMed

110
Multifarious system for quantitative analysis of histologic compartments.
1997-04-01

A system is presented for measuring relative volumes of histologic compartments in microscopic slides. The computer program for that system was written by us as an MS windows 3.x application. The applied method of measurements, based on the "point-counting" technique, requires the recognition of the compartments, corresponding to the selected points of an image. The neural network was employed to ...

PubMed

111
Image analysis of placental issues using three-dimensional ultrasound and color power Doppler based on Support Vector Machine
2009-10-01

With the development of medical science, three-dimensional ultrasound and color power Doppler tomography shooting placenta is widely used. To determine whether the fetus's development is abnormal or not is mainly through the analysis of the capillary's distribution of the obtained images which are shot by the Doppler scanner. In this classification process, we will adopt ...

NASA Astrophysics Data System (ADS)

112
Stochastic Analysis of Multiple-Passband Spectral Classifications Systems Affected by Observation Errors.
1980-01-01

The classification of targets viewed by a pushbroom type multiple band spectral scanner by algorithms suitable for implementation in high speed online digital circuits is considered. A class of algorithms suitable for use with a pipelined classifier is in...

National Technical Information Service (NTIS)

113
Segmentation of SAR (Synthetic Aperture Radar) Images.
1988-01-01

A SAR image segmentation by the gray level only is discussed. Classification errors of SAR images, the existence of histogram valleys suitable for classification, and a procedure for multilevel thresholdings of SAR images are discussed. Not all images, wh...

National Technical Information Service (NTIS)

114
IMPACTS OF PATCH SIZE AND LANDSCAPE HETEROGENEITY ON THEMATIC IMAGE CLASSIFICATION ACCURACY

Impacts of Patch Size and Landscape Heterogeneity on Thematic Image Classification Accuracy. Currently, most thematic accuracy assessments of classified remotely sensed images oily account for errors between the various classes employed, at particular pixels of interest, thu...

EPA Science Inventory

115
Ground Vehicle Acoustic Signal Processing Based on Biological Hearing Models.
1999-01-01

This thesis presents a prototype vehicle acoustic signal classification system with low classification error and short processing delay. To analyze the spectrum of the vehicle acoustic signal, we adopt biologically motivated feature extraction models - co...

National Technical Information Service (NTIS)

116
2nu-SVM: A Cost-Sensitive Extension of the nu-SVM.
2005-01-01

Standard classification algorithms aim to minimize the probability of making an incorrect classification. In many important applications, however, some kinds of errors are more important than others. In this report we review cost-sensitive extensions of s...

National Technical Information Service (NTIS)

117
On the use of interaction error potentials for adaptive brain computer interfaces.
2011-06-01

We propose an adaptive classification method for the Brain Computer Interfaces (BCI) which uses Interaction Error Potentials (IErrPs) as a reinforcement signal and adapts the classifier parameters when an error is detected. We analyze the quality of the proposed approach in relation to the misclassification of the IErrPs. In addition ...

PubMed

118
Multivariate statistical identification of human bladder carcinomas using ambient ionization imaging mass spectrometry.
2011-01-31

Diagnosis of human bladder cancer in untreated tissue sections is achieved by using imaging data from desorption electrospray ionization mass spectrometry (DESI-MS) combined with multivariate statistical analysis. We use the distinctive DESI-MS glycerophospholipid (GP) mass spectral profiles to visually characterize and formally classify twenty pairs (40 tissue samples) of ...

PubMed

119
Compositional data analysis for elemental data in forensic science.
2009-05-02

Discrimination of material based on elemental composition was achieved within a compositional data (CoDa) analysis framework in a form appropriate for use in forensic science. The methods were carried out on example data from New Zealand nephrite. We have achieved good separation of the in situ outcrops of nephrite from within a well-defined area. The most ...

PubMed

120
Wall-to-wall Landsat TM classifications for Georgia in support of ...

Jun 16, 2011 ... It has not been subjected to OCR (Optical Character Recognition) and therefore does not have any errors in the text. However it is a larger ...

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121
To appear in the Proceedings of IEEE Virtual Reality 2008 IPSViz: An After-Action Review Tool for

were influenced by classwide correlations with body size. However, there were errors of classification

E-print Network

122
Surface Ship Classification Using Multipolarization ...
1984-10-01

... versus post-processing SNR, comparing performance with a ± 100 aspect error at various ... 4. Filter (in range) the subtracted files to further reduce ...

DTIC Science & Technology

123
Processing Techniques Development - NASA Technical Report Server ...

task, evaluation of a classification error prediction algorithm and development of scanner ..... A subsequent document, Technique Interchange Plan-Part II, ...

NASA Website

124
Effects of Cue Reliability on Target Detection and Visual ...
2010-12-01

... provide imperfect target classification and are prone to false positive and false negative errors when attempting to identify targets in operational ...

DTIC Science & Technology

125
Diagnosing Cognitive Errors: Statistical Pattern Classification ...
1985-01-01

... Monterey, CA 939140 Takoma Park, MD 20012 Dr. Joseph Psotka ... School of Education Smithsonian Institution University of Massachusetts ...

DTIC Science & Technology

126
Classification with Guaranteed Probability of Error

belonging to a finite set, whose value is determined by x, that is there exists a function y = y(x). We here consider ...... Thus, to provide a fair comparison with the ...

E-print Network

127
Building a Joint-Service Classification Research Roadmap ...
1993-07-01

... 4. TITLE AND SUBTITLE ... Each type of reliability estimate treats measurement error as a ... Indeed, the face validity of hands-on testing is one of the ...

DTIC Science & Technology

128
Validating a classification scheme for medication errors to be used in chemotherapy.
2010-07-16

OBJECTIVE: To validate a classification sheet for medication errors associated with antineoplastic medication. METHOD: Prospective study. A data sheet was designed based on ASHP's classification. Two observers reviewed the treatment prescribed for chemotherapy from the Haematology Department during a month and they classified the ...

PubMed

129
Using Self-Organizing Recognition as a Mechanism for Rejecting Segmentation Errors.
1992-01-01

The authors have developed a self-organized neural network based method that concurrently detects segmentation errors and performs character recognition. This method utilizes a two-pass classification scheme. A page of machine printed text is segmented, a...

National Technical Information Service (NTIS)

130
Radial Complexity Estimation for Improved Generalization in Artificial Neural Networks.
1998-01-01

When training an artificial neural network (ANN) for classification using backpropagation of error, the weights are usually updated by minimizing the sum-squared error on the training set. As training ensues, overtraining may be observed as the network be...

National Technical Information Service (NTIS)

131
NCICB GForge: Classification Services for NCIT (OWL): Project Info

This project will implement �impact� analysis and explanation services over NCIt in the NCI version of Protégé to help identify modeling errors. This is important because it is difficult to identify source of errors with current classifiers.

Cancer.gov

132
Human Factors Analysis and Classification System-HFACS.
2000-01-01

Human error has been implicated in 70 to 80% of all civil and military aviation accidents. Yet, most accident reporting systems are not designed around any theoretical framework of human error. As a result, most accident databases are not conducive to a t...

National Technical Information Service (NTIS)

133
Estimation of a cover-type change matrix from error-prone data

Jun 16, 2011 ... Description: Coregistration and classification errors seriously compromise per- pixel estimates of land cover change. A more robust estimation ...

Treesearch

134
Diagnosing Cognitive Errors: Statistical Pattern Classification and Recognition Approach.
1985-01-01

This paper introduces a probabilistic model that is capable of diagnosing and classifying cognitive errors in a general problem-solving domain. The model is different from the usual deterministic strategies common in the area of artificial intelligence be...

National Technical Information Service (NTIS)

135
Analysis of Dsn Software Anomalies.
1981-01-01

A categorized data base of software errors which were discovered during the various stages of development and operational use of the Deep Space Network DSN/Mark 3 System was developed. A study team identified several existing error classification schemes ...

National Technical Information Service (NTIS)

136
Mapping crop distribution in administrative districts of southwest Germany using multi-sensor remote sensing data
2010-10-01

In the face of global change, concepts for sustainable land management are increasingly requested, among others to cope with the rapidly increasing energy demand. High resolution land use classifications can contribute spatially explicit information suitable for land use planning. In this study, the coverage of cereal crops was derived for two regions in Baden-Wuerttemberg and ...

NASA Astrophysics Data System (ADS)

137
Sequence representation and prediction of protein secondary structure for structural motifs in twilight zone proteins.
2006-12-01

Characterizing and classifying regularities in protein structure is an important element in uncovering the mechanisms that regulate protein structure, function and evolution. Recent research concentrates on analysis of structural motifs that can be used to describe larger, fold-sized structures based on homologous primary sequences. At the same time, accuracy of secondary protein structure ...

PubMed

138
Combinatorial QSAR modeling of human intestinal absorption.
2010-12-29

Intestinal drug absorption in humans is a central topic in drug discovery. In this study, we use a broad selection of machine learning and statistical methods for the classification and numerical prediction of this key end point. Our data set is based on a selection of 458 small druglike compounds with FDA approval. Using easily available tools, we calculated one- to ...

PubMed

139
COMPARE: classification of morphological patterns using adaptive regional elements.
2007-01-01

This paper presents a method for classification of structural brain magnetic resonance (MR) images, by using a combination of deformation-based morphometry and machine learning methods. A morphological representation of the anatomy of interest is first obtained using a high-dimensional mass-preserving template warping method, which results in tissue density maps that ...

PubMed

140
Classification and Detection of Errors in Minimally Invasive Surgery.
2011-08-30

Abstract Purpose: To provide a comprehensive review of the classification of surgical errors as well as general measures to detect and prevent their occurrence. Materials and Methods: Search in PubMed, Medline, and Cochrane library with combination of the key words: Endoscopy or surgical procedures, minimally invasive, and medical ...

PubMed

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141
Mutual information optimization and evaluation of single photon emission computed tomography
1989-01-01

In this thesis we study the performance of Single Photon Emission Computed Tomography using concepts and techniques of information theory. Two specific tomographic tasks are considered: image reconstruction and image feature classification. For the image reconstruction problem we derive a necessary and sufficient condition for an aperture to be information optimal. The ...

Energy Citations Database

142
Bohunice Simulator Data Collection Project
2002-07-01

The paper describes the way and results of human reliability data analysis collected as a part of the Bohunice Simulator Data Collection Project (BSDCP), which was performed by VUJE Trnava, Inc. with funding support from the U.S. DOE, National Nuclear Security Administration. The goal of the project was to create a methodology for simulator data collection and analysis to support activities in ...

Energy Citations Database

143
Damping Gimballess Inertial Navigation Systems.
1965-01-01

The mechanization of a gimballess inertial system for space navigation is considered. An error analysis reveals that the errors contain both sinusoidal and diverging components. Error damping methods are proposed and it is shown that damping can be achiev...

National Technical Information Service (NTIS)

144
Concatenated Coded Modulation Scheme for Error Control.
1988-01-01

A concatenated coded modulation scheme for error control in data communications is presented. The scheme is achieved by concatenating a Reed-Solomon outer code and a bandwidth efficient block inner code for M-ary PSK modulation. Error performance of the s...

National Technical Information Service (NTIS)

145
Concatenated Coded Modulation Scheme for Error Control (Addition 2).
1988-01-01

A concatenated coded modulation scheme for error control in data communications is described. The scheme is achieved by concatenating a Reed-Solomon outer code and a bandwidth efficient block inner code for M-ary PSK modulation. Error performance of the s...

National Technical Information Service (NTIS)

146
An Operational Evaluation of Flight Technical Error.
1975-01-01

The primary objective of this effort is to determine whether a one mile flight technical error is achievable in enroute and terminal area operations using various types of airborne RNAV equipment. Flight technical error (FTE) is evaluated using both contr...

National Technical Information Service (NTIS)

147
Neural classifier construction using regularization, pruning and test error estimation.
1998-12-01

In this paper we propose a method for construction of feed-forward neural classifiers based on regularization and adaptive architectures. Using a penalized maximum likelihood scheme, we derive a modified form of the entropic error measure and an algebraic estimate of the test error. In conjunction with optimal brain damage pruning, a test ...

PubMed

148
Registered Nurses' Judgments of the Classification and Risk Level of Patient Care Errors.

As frontline clinicians, nurses play a critical role in mitigating patient harm, recovery from health care errors, and overall improvement of patient safety. This cross-sectional study asked nurse respondents to make judgments about the classification and severity of errors in 4 clinical vignettes. Our results showed that agreement ...

PubMed

149
Covariate Measurement Error Adjustment for Multilevel Models with Application to Educational Data
2011-06-01

This article proposes a multilevel model for the assessment of school effectiveness where the intake achievement is a predictor and the response variable is the achievement in the subsequent periods. The achievement is a latent variable that can be estimated on the basis of an item response theory model and hence subject to measurement ...

ERIC Educational Resources Information Center

150
A Method to Dramatically Improve Subcarrier Tracking

A method is presented for achieving a dramatic improvement in phase tracking ... window can be made so narrow as to achieve a phase error variance of 1.503. ...

NASA Website

151
Robust Visual Tracking and Vehicle Classification via Sparse Representation.
2011-03-18

In this paper, we propose a robust visual tracking method by casting tracking as a sparse approximation problem in a particle filter framework. In this framework, occlusion, noise and other challenging issues are addressed seamlessly through a set of trivial templates. Specifically, to find the tracking target in a new frame, each target candidate is sparsely represented in the space spanned by ...

PubMed

152
Reliability of a Shuttle Run Test for Children with Cerebral Palsy Who Are Classified at Gross Motor Function Classification System Level III
2011-05-01

For children and adolescents with cerebral palsy (CP) classified as Gross Motor Function Classification System (GMFCS) level III there is no running-based field test available to assess their cardiorespiratory fitness. The current study investigated whether a shuttle run test can be reliably (test-retest) performed in a group of children with spastic diplegia (eight male, five ...

ERIC Educational Resources Information Center

153
Linear regression for face recognition.
2010-11-01

In this paper, we present a novel approach of face identification by formulating the pattern recognition problem in terms of linear regression. Using a fundamental concept that patterns from a single-object class lie on a linear subspace, we develop a linear model representing a probe image as a linear combination of class-specific galleries. The inverse problem is solved using the least-squares ...

PubMed

154
Reliability of a shuttle run test for children with cerebral palsy who are classified at Gross Motor Function Classification System level III.
2011-02-11

For children and adolescents with cerebral palsy (CP) classified as Gross Motor Function Classification System (GMFCS) level III there is no running-based field test available to assess their cardiorespiratory fitness. The current study investigated whether a shuttle run test can be reliably (test-retest) performed in a group of children with spastic diplegia (eight male, five ...

PubMed

155
Real-time detection and classification of objects in flowing water
1998-10-01

This paper describes the design of a PC-based real-time machine vision system for detecting and classifying small marine organisms like fish eggs and planktons in flowing water. The system is called the Real-time FLow Imaging and Classification System, or ReFLICS for short, and it will automate the task of visually counting and classifying fish egg samples which is currently ...

NASA Astrophysics Data System (ADS)

156
Optical character recognition (OCR) in uncontrolled environments using optical correlators
1999-03-01

With the emergence of a global economy, companies are more than ever pressured for improved efficiency. Int he transportation industry there is a growing need for better tracking of the status of containers in transit. This would lead to improved handling operation, reduce the number of errors, increase the throughput and enable the use of electronic data interchange (EDI). As ...

NASA Astrophysics Data System (ADS)

157
Image coding with a directional-oriented Hermite transform on a hexagonal lattice
2001-12-01

This paper presents a novel image compression scheme based on the perceptual classification of image patterns in the Discrete Hermite Transform (DHT) domain over a roughly hexagonal sampling lattice. The DHT analyzes a signal through a set of binomial filters which approximate the Gaussian derivatives with the advantage that they are computed efficiently. In order to obtain ...

NASA Astrophysics Data System (ADS)

158
CMP: A Fast Decision Tree Classifier Using Multivariate Predictions
2000-01-01

Most decision tree classifiers are designed to keep class histograms for single attributes, and to select a particular attribute for the next split using said histograms. In this paper, we propose a technique where, by keeping histograms on attribute pairs, we achieve (i) a significant speed-up over traditional classifiers based on single attribute splitting, and (ii) the ...

E-print Network

159
Artificial neural network data analysis for classification of soils based on their radionuclide content
2007-09-01

The artificial neural network (ANN) data analysis method was used to recognize and classify soils of an unknown geographic origin. A total of 103 soil samples were differentiated into classes according to the regions in Serbia and Montenegro from which they were collected. Their radionuclide (226Ra, 238U, 235U, 40K, 134Cs, 137Cs, 232Th, and 7Be) activities detected by gamma-ray spectrometry were ...

NASA Astrophysics Data System (ADS)

160
The Potential of Computer Controlled Optimizing Equipment in the ...

Jun 16, 2011... and the impact of these errors on the efficiency of rough mills. ... How these goals can be achieved in practice also is discussed. ...

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161
Psychometric Approach to Error Analysis on Response ...
1980-02-01

... quality of computerized adaptive testing as an ... An adaptive achievement test for teaching signed-numbers ... be needed in future computerized tests. ...

DTIC Science & Technology

162
NASA - Software Management

Establishing control processes to achieve quality, error-free software; Using estimating models as a management tool throughout the software development ...

NASA Website

163
JPL: Section 332 Home Page - NASA

The Communications Architectures and Research Section (332) has a heritage of significant achievements in space communications, which include error ...

NASA Website

164
Distributed Compression in Camera Sensor Networks
2006-02-13

... at the decoder to determine the error pattern. ... Knowing y and the syndrome of x, the ... structured segmentation that achieve the correct asymptotic rate ...

DTIC Science & Technology

165
Computerized Design and Generation of Low-Noise ... - GLTRS - NASA

The reduction of noise and vibration is achieved by application of a predesigned parabolic function of transmission errors that is able to absorb a ...

NASA Website

166
Achieving Milli-Arcsecond Residual Astrometric Error for the ...

... The primary objective of the JMAPS mission is the generation of an astrometric star ... Distribution Statement : APPROVED FOR PUBLIC RELEASE. ...

DTIC Science & Technology

167
Classification of echolocation clicks from odontocetes in the Southern California Bight.
2011-01-01

This study presents a system for classifying echolocation clicks of six species of odontocetes in the Southern California Bight: Visually confirmed bottlenose dolphins, short- and long-beaked common dolphins, Pacific white-sided dolphins, Risso's dolphins, and presumed Cuvier's beaked whales. Echolocation clicks are represented by cepstral feature vectors that are classified by Gaussian mixture ...

PubMed

168
Topology Preserving SOM with Transductive Confidence Machine
2010-01-01

We propose a novel topology preserving self-organized map (SOM) classifier with transductive confidence machine (TPSOM-TCM). Typically, SOM acts as a dimension reduction tool for mapping training samples from a high-dimensional input space onto a neuron grid. However, current SOM-based classifiers can not provide degrees of classification reliability for new unlabeled samples ...

NASA Astrophysics Data System (ADS)

169
Time-resolved DNA identification in capillary gel electrophoresis with semiconductor lasers
1997-05-01

We developed a simple, tiny setup with only a few optical devices for fast and sensitive identification of DNA with a short-pulse semiconductor laser operating at 20 MHz. In combination with newly synthesized fluorescent dyes (rhodamine derivatives) which exhibit high fluorescence quantum efficiencies and distinct fluorescence lifetimes at semiconductor laser excitation wavelength a sensitive ...

NASA Astrophysics Data System (ADS)

170
Physicians' medication prescribing in primary care in Riyadh City, Saudi Arabia. Literature review, part 2: rational prescribing.
2011-02-01

Unlike sub-optimal prescribing, rational prescribing, coupled with certain indicators, is associated with improved safety in drug use in terms of selecting appropriate drug for prescribing, better quality of life for patients and cost-effective care. Medication prescribing is a relatively unexplored area of research in Saudi Arabia and until now most studies have been in the secondary and tertiary ...

PubMed

171
March 17 - 19, 2004: Permutation Achieved Classification Error (PACE): A Significance Test for Assessing the Statistical Significance of Classifiers for Peptide Profiling via MALDI/SELDI-TOF Mass Spectrometry, Hauskrecht, Richard Pelikan,David Malehorn, Doug Landsittel, Herb Zeh, David C. Whitcomb, Bill Bigbee

PEAK # Features SN SP Test Error No 5 0.8697 0.669 0.2132 No 10 0.9073 0.9039 0.0941 No 15 0.9298 0.9537 0.0603 No 20 0.9499 0.9502 0.05 Yes 5 0.9123 0.726 0.1647 Yes 10 0.9424 0.9644 0.0485 Yes 15 0.9474 0.968 0.0441 Yes 20 0.9348 0.9751 0.0485 Kern S,H.R.H.M. 2001.

Cancer.gov

172
Integration of multi-array sensors and support vector machines for the detection and classification of organophosphate nerve agents
2003-08-01

Due to the increased threats of chemical and biological weapons of mass destruction (WMD) by international terrorist organizations, a significant effort is underway to develop tools that can be used to detect and effectively combat biochemical warfare. Furthermore, recent events have highlighted awareness that chemical and biological agents (CBAs) may become the preferred, cheap alternative WMD, ...

NASA Astrophysics Data System (ADS)

173
Efficient training algorithms for a class of shunting inhibitory convolutional neural networks.
2005-05-01

This article presents some efficient training algorithms, based on first-order, second-order, and conjugate gradient optimization methods, for a class of convolutional neural networks (CoNNs), known as shunting inhibitory convolution neural networks. Furthermore, a new hybrid method is proposed, which is derived from the principles of Quickprop, Rprop, SuperSAB, and least squares (LS). ...

PubMed

174
Analysis of Pre-Germinated Barley using Hyperspectral Image Analysis.
2011-09-21

Pre-germination is one of many serious degradations to barley when used for malting. A pre-germinated barley kernel can under certain conditions not re-germinate and is reduced to animal feed of lower quality. Identifying pre-germination at an early stage is therefore essential in order to segregate the barley kernels into low or high quality. Current standard methods to quantify pre-germinated ...

PubMed

175
Novel classification fusion techniques for military target classification
2007-04-01

The objective of this paper is to develop novel classification structures for military targets detection and recognition by employing different fusion techniques. In real applications, the great diversity of materials in the background areas and the similarity between the background and target signatures result in high false alarm rates and large miss ...

NASA Astrophysics Data System (ADS)

176
Analysis of DSN software anomalies
1981-02-01

A categorized data base of software errors which were discovered during the various stages of development and operational use of the Deep Space Network DSN/Mark 3 System was developed. A study team identified several existing error classification schemes (taxonomies), prepared a detailed annotated bibliography of the ...

NASA Astrophysics Data System (ADS)

177
Optimized entanglement-assisted quantum error correction
2010-10-15

Using convex optimization, we propose entanglement-assisted quantum error-correction procedures that are optimized for given noise channels. We demonstrate through numerical examples that such an optimized error-correction method achieves higher channel fidelities than existing methods. This improved performance, which leads to perfect ...

Energy Citations Database

178
Optimized entanglement-assisted quantum error correction
2010-10-01

Using convex optimization, we propose entanglement-assisted quantum error-correction procedures that are optimized for given noise channels. We demonstrate through numerical examples that such an optimized error-correction method achieves higher channel fidelities than existing methods. This improved performance, which leads to perfect ...

NASA Astrophysics Data System (ADS)

179
Discrimination of corn from monocotyledonous weeds with ultraviolet (UV) induced fluorescence.
2011-01-01

In production agriculture, savings in herbicides can be achieved if weeds can be discriminated from crop, allowing the targeting of weed control to weed-infested areas only. Previous studies demonstrated the potential of ultraviolet (UV) induced fluorescence to discriminate corn from weeds and recently, robust models have been obtained for the discrimination between monocots ...

PubMed

180
Human Error Analysis of Commercial Aviation Accidents Using the Human Factors Analysis and Classification System (HFACS).
2001-01-01

The Human Factors Analysis and Classification System (HFACS) is a general human error framework originally developed and tested within the U.S. military as a tool for investigating and analyzing the human causes of aviation accidents. Based upon Reasons (...

National Technical Information Service (NTIS)

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181
Classification Errors in Contingency Tables Analyzed with Hierarchical Log-Linear Models. Technical Report No. 20.
1978-01-01

This thesis is concerned with the effect of classification error on contingency tables being analyzed with hierarchical log-linear models (independence in an I x J table is a particular hierarchical log-linear model). Hierarchical log-linear models provid...

National Technical Information Service (NTIS)

182
A fuzzy neural network for intelligent data processing
2005-03-01

In this paper, we describe an incrementally generated fuzzy neural network (FNN) for intelligent data processing. This FNN combines the features of initial fuzzy model self-generation, fast input selection, partition validation, parameter optimization and rule-base simplification. A small FNN is created from scratch -- there is no need to specify the initial network architecture, initial ...

NASA Astrophysics Data System (ADS)

183
Errors generated with the use of rectangular collimation
1991-04-01

This study was designed to determine whether various techniques for achieving rectangular collimation generate different numbers and types of errors and remakes and to determine whether operator skill level influences errors and remakes. Eighteen students exposed full-mouth series of radiographs on manikins with the use of six ...

Energy Citations Database

184
Mapping the forests of Jefferson Proving Ground, Indiana using remote sensing, geographic information systems and classification trees
1998-01-01

Classification trees were tested as a potential methodology for increasing the thematic detail of forest maps for the Indiana Gap Analysis Project. The study area used to test the methodology was Jefferson Proving Ground in southeastern Indiana. Multi-temporal Landsat TM data were integrated with digitized elevation and soils data using the classification ...

NASA Astrophysics Data System (ADS)

185
Computer-aided prognosis of neuroblastoma: classification of stromal development on whole-slide images
2008-04-01

Neuroblastoma is a cancer of the nervous system and one of the most common tumors in children. In clinical practice, pathologists examine the haematoxylin and eosin (H&E) stained tissue slides under the microscope for the diagnosis. According to the International Neuroblastoma Classification System, neuroblastoma tumors are categorized into favorable and unfavorable ...

NASA Astrophysics Data System (ADS)

186
Evolving point-cloud features for gender classification
2011-05-01

In this paper we explore the use of histogram features extracted from 3D point clouds of human subjects for gender classification. Experiments are conducted using point clouds drawn from the CAESAR anthropometric database provided by the Air Force Research Laboratory (AFRL) Human Effectiveness Directorate and SAE International. This database contains approximately 4400 high ...

NASA Astrophysics Data System (ADS)

187
Automatic classification of background EEG activity in healthy and sick neonates
2010-02-01

The overall aim of our research is to develop methods for a monitoring system to be used at neonatal intensive care units. When monitoring a baby, a range of different types of background activity needs to be considered. In this work, we have developed a scheme for automatic classification of background EEG activity in newborn babies. EEG from six full-term babies who were ...

NASA Astrophysics Data System (ADS)

188
Applications of pattern classification to time-domain signals
2010-01-01

Many different kinds of physics are used in sensors that produce time-domain signals, such as ultrasonics, acoustics, seismology, and electromagnetics. The waveforms generated by these sensors are used to measure events or detect flaws in applications ranging from industrial to medical and defense-related domains. Interpreting the signals is challenging because of the complicated physics of the ...

NASA Astrophysics Data System (ADS)

189
Human confusion costs for object classification
2011-02-01

Most of the traditional evaluation criteria of object classification are based on the error rate, assuming that the costs of different errors are equal. However, the subjective evaluation of the human vision system on such misclassification errors may be unequal. How do we design proper performance evaluation ...

NASA Astrophysics Data System (ADS)

190
Adaptive nearest neighbor pattern classification.
1991-01-01

A variant of nearest-neighbor (NN) pattern classification and supervised learning by learning vector quantization (LVQ) is described. The decision surface mapping method (DSM) is a fast supervised learning algorithm and is a member of the LVQ family of algorithms. A relatively small number of prototypes are selected from a training set of correctly classified samples. The ...

PubMed

191
Understanding errors in diagnostic radiology: proposal of a classification scheme and application to emergency radiology.
2011-07-24

Errors in image interpretation are a common problem in diagnostic radiology. Although many published articles provide trainees with the means to correctly interpret imaging studies, they do not provide a framework for understanding why and how errors occur. In this article, we propose a classification system that allows categorization ...

PubMed

192
Outpatient Code Editor with Ambulatory Payment Classification (OCE/APC) for Medicare Billing (software distributed on CD-ROM).
2007-01-01

The Outpatient Code Editor (OCE) with Ambulatory Classification (APC) program edits patient data to help identify possible errors in coding, and assigns Ambulatory Payment classification numbers based on Healthcare Common Procedure Coding System (HCPCS) c...

National Technical Information Service (NTIS)

193
Minimising added classification error using walsh coefficients.
2011-08-01

Two-class supervised learning in the context of a classifier ensemble may be formulated as learning an incompletely specified Boolean function, and the associated Walsh coefficients can be estimated without the knowledge of the unspecified patterns. Using an extended version of the Tumer-Ghosh model, the relationship between added classification error and ...

PubMed

194
Technical Classification and Assessment Center (TCAC) Tests: Validity for Predicting Job Achievement of General Detail (GENDET) Personnel.
1984-01-01

This research evaluated 24 predictors, including experimental tests administered in a technical classification assessment center (TCAC), biographical variables, and Armed Services Vocational Aptitude Battery (ASVAB) tests, for classifying personnel for ge...

National Technical Information Service (NTIS)

195
Opto-mechanical scanning technique for pattern recognition
1976-01-01

An opto-mechanical scanning technique and initial experiments are described in which characteristics of undirectional resolution produced by one-dimensional imaging is used both for detection and geometric classification of linear arrays. Classification is achieved by angular identification of linear arrays.

Energy Citations Database

196
Multistatic, Concurrent Detection, Classification And Localization Concepts For Autonomous, Shallow Water Mine Counter Measures.
2008-01-01

As a seamless, continuation of the previous SWAMSI grant, the objective continues to be the achievement of robust multi-static detection and classification of proud- and buried seabed objects using cooperative networks of autonomous vehicles with acoustic...

National Technical Information Service (NTIS)

197
Computer Automated Image Classification.
1995-01-01

The primary objective of the research and development was to achieve classification and feature extraction from high resolution digital terrain elevation (DTE) data and corresponding fine resolution SAR imagery generated from interferometric synthetic ape...

National Technical Information Service (NTIS)

198
Applications of Remote Sensing. Volume 1.
1977-01-01

The author has identified the following significant results. ECHO successfully exploits the redundancy of states characteristics of sampled imagery of ground scenes to achieve better classification accuracy, reduce the number of classifications required, ...

National Technical Information Service (NTIS)

199
Improving the Table Boundary Detection in PDFs by Fixing the Sequence Error of the Sparse Lines

pieces, wrong column/row information, and omitting cells/whole tables etc. Some of the errors canImproving the Table Boundary Detection in PDFs by Fixing the Sequence Error of the Sparse Lines- ment storage, classification and retrieval. Table, a ubiqui- tous document component, becomes

E-print Network

200
An experimental analysis of the dependence among codeword bit errors in ECOC learning

dichotomizers (ECOC PND). Moreover, the ex- perimentation analyzes the relationship between the architecture of independent parallel dichotomizers are better suited for implementing ECOC classification methods output errors and the diversity between base learners. Key words: Error Correcting Output Coding, ECOC

E-print Network

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