Accession Number : AD0659296

Title :   ON THE LINEAR AND QUADRATIC DISCRIMINATORS FOR PATTERN RECOGNITION.

Descriptive Note : Technical rept.,

Corporate Author : INFORMATION RESEARCH ASSOCIATES INC LEXINGTON MASS

Personal Author(s) : Rao,Poduri S. R. S.

Report Date : 21 JUL 1967

Pagination or Media Count : 21

Abstract : In this report, two problems in pattern recognition are considered: (1) when the likelihood ratio criterion results in a quadratic discriminant function, it may be possible to factor the quadratic form into two linear discriminant functions. It is shown that the probabilities of misclassifications are the same for both the linear discriminant functions and that both of them should be used for classification. (2) When the likelihood criterion results in a linear discriminant function, it is shown that the estimate of the 'squared distance' has a positive bias and hence the probability of misclassification is underestimated. (Author)

Descriptors :   (*PATTERN RECOGNITION, CLASSIFICATION), (*INFORMATION THEORY, SIMULATION), MULTIVARIATE ANALYSIS, PROBABILITY, STATISTICAL ANALYSIS, LEARNING MACHINES, ARTIFICIAL INTELLIGENCE

Subject Categories : Cybernetics
      Bionics

Distribution Statement : APPROVED FOR PUBLIC RELEASE