Results 271 to 280 of about 5,142,656 (331)

Pain Disability Index: Construct and discriminant validity

Archives of Physical Medicine and Rehabilitation, 1991
The Pain Disability Index (PDI) was developed as a self-report measure of general and domain-specific, pain-related disability. This study's purpose was twofold: (1) to assess construct validity of the scale relative to other measures of pain-related disability and psychologic distress and (2) to assess the strength of the PDI, independent of pain ...
A, Jerome, R T, Gross
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A time‐dependent discrimination index for survival data

Statistics in Medicine, 2005
AbstractTo derive models suitable for outcome prediction, a crucial aspect is the availability of appropriate measures of predictive accuracy, which have to be usable for a general class of models. The Harrell'sCdiscrimination index is an extension of the area under the ROC curve to the case of censored survival data, which owns a straightforward ...
L. Antolini, P. Boracchi, E. Biganzoli
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Discrimination integration index as a broadband discrimination index

SPIE Proceedings, 1996
ABSTRACT Crop/weed/soil discrimination by optical reflectance on brassicas proved to be reliable for recogiwzing leaves of crops from leaves of weeds and soil, although differences on crop varieties,weed species population and type of soil. Radiometers using 10 nm bandwidth filters were used in earlier experiments, but higher reflected radiance could ...
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Dynamic Ensemble Selection by K-Nearest Local Oracles with Discrimination Index

IEEE International Conference on Tools with Artificial Intelligence, 2018
This work describes a new oracle based Dynamic Ensemble Selection (DES) method in which an Ensemble of Classifiers (EoC) is selected to predict the class of a given test instance (xt). The competence of each classifier is estimated on a local region (LR)
Marcelo Pereira, A. Britto, Luiz Oliveira, R. Sabourin   +3 more
semanticscholar   +1 more source

On Highly Discriminating Molecular Topological Index

Journal of Chemical Information and Computer Sciences, 1996
A highly discriminating molecular topological index, EAID, is proposed based on the extended adjacency matrix. A systematic search for degeneracy was performed for 3 807 434 alkane trees, 202 558 complex cyclic or polycyclic graphs, and 430 472 structures containing heteroatoms.
Chang-Yu Hu, Lu Xu
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An Index of Pseudo-Discrimination Loss

Journal of Speech and Hearing Research, 1965
An Index of Pseudo-Discrimination Loss (PDL-Index) has been developed for use with the recorded W-22 discrimination tests and is described. This PDL-Index is based on consideration of the kinds of errors made by the patient and provides an objective estimate of the relative contribution of extra-auditory influences to an obtained discrimination loss ...
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Palmprint recognition via discriminative index learning

2016 23rd International Conference on Pattern Recognition (ICPR), 2016
In the past years, deep convolutional neural networks (CNNs) have become extremely popular in the computer vision and pattern recognition community. The computational power of modern processors, efficient stochastic optimization algorithms, and large amounts of training data allowed training complex tasks-specific features directly from the data in an ...
Jan Svoboda, Jonathan Masci, Michael M. Bronstein   +2 more
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Item analysis: the impact of distractor efficiency on the difficulty index and discrimination power of multiple-choice items

BMC Medical Education
Distractor efficiency (DE) of multiple-choice questions (MCQs) responses is a component of the psychometric analysis used by the examiners to evaluate the distractors’ credibility and functionality.
A. Rezigalla, A. M. Eleragi, A. Elhussein, Jaber A. Alfaifi, M. Alghamdi, Ahmed Y. Al Ameer, A. Yahia, Osama A. Mohammed, M. I. Adam   +8 more
semanticscholar   +1 more source

Locality discriminating indexing for document classification

Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval, 2007
This paper introduces a locality discriminating indexing (LDI) algorithm for document classification. Based on the hypothesis that samples from different classes reside in class-specific manifold structures, LDI seeks for a projection which best preserves the within-class local structures while suppresses the between-class overlap.
Jiani Hu, Weihong Deng, Jun Guo, Weiran Xu   +3 more
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CORRELATION OF DIFFICULTY INDEX AND DISCRIMINATING INDEX IN MEDICAL STUDENT’S ASSESSMENT.

PARIPEX INDIAN JOURNAL OF RESEARCH, 2021
Multiple choice questions are nowadays used in competitive examination and formative assessment to assess the student's eligibility and certification.Item analysis is the process of collecting,summarizing and using information from students' responses to assess the quality of test items.Goal of the study was to identify the relationship between the ...
Bhoomika R. Chauhan, Jayesh Vaza, Girish R. Chauhan, Pradip R. Chauhan   +3 more
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