
Accession Number : AD0717021
Title : Statistical Methods of Isolating Indicators and an Appraisal of the Quality of Recognition,
Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHTPATTERSON AFB OHIO
Personal Author(s) : Birman,N. Ya.
Report Date : 28 OCT 1970
Pagination or Media Count : 15
Abstract : An effort is made to determine the sufficiency of a selected set of criteria for breaking down the entire set of unknown characters into classes with a specified degree of reliability. The solution of the problem depends to a significant degree on the method used in isolating the criteria. The problems of sufficiency are analyzed as they depend on these methods. It is assumed that there are two classes of symbols A and B and that the given density distributions are obtained for each given parameter. It is assumed that both distributions satisfy the normal law, that the criteria are independent and the dispersions are the same. Analysis yields a given expression for the reliability of recognition. This expression in conjunction with values obtained for mathematical expectation and dispersion are used to determine the reliability of recognition in the threshold system. The reliability necessary for recognition when there is the same number of criteria is given by an equation. (Author)
Descriptors : (*PATTERN RECOGNITION, STATISTICAL ANALYSIS), READING MACHINES, AUTOMATION, RESOLUTION, GRAPHICS, ALGORITHMS, USSR
Subject Categories : Computer Hardware
Bionics
Distribution Statement : APPROVED FOR PUBLIC RELEASE