Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Handwriting: Feature Correlation Analysis for Biometric Hashes | EURASIP Journal on Applied Signal Processing 2004 4 542-558 2004 Hindawi Publishing Corporation Handwriting Feature Correlation Analysis for Biometric Hashes Claus Vielhauer Multimedia Communications Lab KOM Darmstadt University of Technology 64283 Darmstadt Germany Platanista GmbH 06846 Dessau Germany Faculty of Computer Science Otto-von-Guericke University 39106 Magdeburg Germany Email Ralf Steinmetz Multimedia Communications Lab KOM Darmstadt University of Technology 64283 Darmstadt Germany Email Received 17 November 2002 Revised 9 September 2003 In the application domain of electronic commerce biometric authentication can provide one possible solution for the key management problem. Besides server-based approaches methods of deriving digital keys directly from biometric measures appear to be advantageous. In this paper we analyze one of our recently published specific algorithms of this category based on behavioral biometrics of handwriting the biometric hash. Our interest is to investigate to which degree each of the underlying feature parameters contributes to the overall intrapersonal stability and interpersonal value space. We will briefly discuss related work in feature evaluation and introduce a new methodology based on three components the intrapersonal scatter deviation the interpersonal entropy and the correlation between both measures. Evaluation of the technique is presented based on two data sets of different size. The method presented will allow determination of effects of parameterization of the biometric system estimation of value space boundaries and comparison with other feature selection approaches. Keywords and phrases biometrics signature verification feature evaluation feature correlation cryptographic key management handwriting information entropy. 1. MOTIVATION Today a wide spectrum of technologies for user identification and verification exists and a great number
