Polygraph Test Results Assessment by Regression Analysis Methods

<p>The paper considers a problem of defining the importance of asked questions for the examinee under judicial and psychophysiological polygraph examination by methods of mathematical statistics. It offers the classification algorithm based on the logistic regression as an optimum Bayesian cla...

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Main Authors: K. A. Leontiev, S. D. Panin, Yu. I. Kholodniy
Format: Article
Language:Russian
Published: MGTU im. N.È. Baumana 2014-01-01
Series:Nauka i Obrazovanie
Subjects:
Online Access:http://technomag.edu.ru/jour/article/view/704
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author K. A. Leontiev
S. D. Panin
Yu. I. Kholodniy
author_facet K. A. Leontiev
S. D. Panin
Yu. I. Kholodniy
author_sort K. A. Leontiev
collection DOAJ
description <p>The paper considers a problem of defining the importance of asked questions for the examinee under judicial and psychophysiological polygraph examination by methods of mathematical statistics. It offers the classification algorithm based on the logistic regression as an optimum Bayesian classifier, considering weight coefficients of information for the polygraph-recorded physiological parameters with no condition for independence of the measured signs.</p><p>Actually, binary classification is executed by results of polygraph examination with preliminary normalization and standardization of primary results, with check of a hypothesis that distribution of obtained data is normal, as well as with calculation of coefficients of linear regression between input values and responses by method of maximum likelihood. Further, the logistic curve divided signs into two classes of the "significant" and "insignificant" type.</p><p>Efficiency of model is estimated by means of the ROC analysis (Receiver Operator Characteristics). It is shown that necessary minimum sample has to contain results of 45 measurements at least. This approach ensures a reliable result provided that an expert-polygraphologist possesses sufficient qualification and follows testing techniques.</p>
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spelling doaj.art-55dde05d032740a6865d8068f075be932022-12-22T03:23:41ZrusMGTU im. N.È. BaumanaNauka i Obrazovanie1994-04082014-01-0101023024310.7463/1014.0728906704Polygraph Test Results Assessment by Regression Analysis MethodsK. A. Leontiev0S. D. Panin1Yu. I. Kholodniy2Bauman Moscow State Technical UniversityBauman Moscow State Technical UniversityBauman Moscow State Technical University<p>The paper considers a problem of defining the importance of asked questions for the examinee under judicial and psychophysiological polygraph examination by methods of mathematical statistics. It offers the classification algorithm based on the logistic regression as an optimum Bayesian classifier, considering weight coefficients of information for the polygraph-recorded physiological parameters with no condition for independence of the measured signs.</p><p>Actually, binary classification is executed by results of polygraph examination with preliminary normalization and standardization of primary results, with check of a hypothesis that distribution of obtained data is normal, as well as with calculation of coefficients of linear regression between input values and responses by method of maximum likelihood. Further, the logistic curve divided signs into two classes of the "significant" and "insignificant" type.</p><p>Efficiency of model is estimated by means of the ROC analysis (Receiver Operator Characteristics). It is shown that necessary minimum sample has to contain results of 45 measurements at least. This approach ensures a reliable result provided that an expert-polygraphologist possesses sufficient qualification and follows testing techniques.</p>http://technomag.edu.ru/jour/article/view/704weight coefficientspolygraphlogistic regression
spellingShingle K. A. Leontiev
S. D. Panin
Yu. I. Kholodniy
Polygraph Test Results Assessment by Regression Analysis Methods
Nauka i Obrazovanie
weight coefficients
polygraph
logistic regression
title Polygraph Test Results Assessment by Regression Analysis Methods
title_full Polygraph Test Results Assessment by Regression Analysis Methods
title_fullStr Polygraph Test Results Assessment by Regression Analysis Methods
title_full_unstemmed Polygraph Test Results Assessment by Regression Analysis Methods
title_short Polygraph Test Results Assessment by Regression Analysis Methods
title_sort polygraph test results assessment by regression analysis methods
topic weight coefficients
polygraph
logistic regression
url http://technomag.edu.ru/jour/article/view/704
work_keys_str_mv AT kaleontiev polygraphtestresultsassessmentbyregressionanalysismethods
AT sdpanin polygraphtestresultsassessmentbyregressionanalysismethods
AT yuikholodniy polygraphtestresultsassessmentbyregressionanalysismethods