Authors Yu.A. Bryukhomitsky
Month, Year 05, 2017 @en
Index UDC 004.067
Abstract The generalized immunological approach of solving the problem of personality identification by its dynamic biometric characteristics of different modalities: voice, penscript, keyboard set, is offered. The approach is oriented to the personality identification while reproducing by the person of texts of arbitrary volume and content. The solution of this task is based on the principles of constructing and functioning of artificial immune systems, using vector representation and processing of biometric data, good conforming to the numerical character of the signals of dynamic biometry. A special feature of the approach is the presentation of signals of dynamic biometry by sequences of information units of fixed format, with their following decentralized processing based on the immunological model of negative selection. Informational units of sequences are syntactically related fragments of the text, carrying the most expressed individual characteristics of personality. The following analysis and processing of text fragments are carried out in the multidimensional metric space of attributes. Recognition of images of dynamic biometry, represented by text fragments, is realized by their comparison with recognizing elements - detectors. The comparison is carried out on the principle of negative selection. Two possible types of detectors are considered. The former are represented in the feature space by multidimensional vectors (simple detectors), the latter – by multidimensional spheres (volumetric detectors). A computational procedure for the formation of volumetric detectors at the learning stage and a procedure for comparing the signals of dynamic biometry with volumetric detectors at the identification stage are proposed. The proposed approach in the context of the immunological presentation allows us to generalize essentially different methods of identification of a person using the dynamic biometric parameters of different modalities - voice, penscript and keyboard set. The difference of approach is the possibility of text-independent analysis of texts of different modality, arbitrary volume and content. Another difference is the transition from an integrated evaluation of the results of the analysis of biometric data over a fixed period of time to a continuous evaluation of data at the rate of their receipt, with the possibility of timely making the right decision.

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Keywords Text-independent personality identification; dynamic biometry; artificial immune systems; vector data representation.
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