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Performance of a long-text-input keystroke biometric authentication system using an improved k-nearest-neighbor classification method

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3 Author(s)
Zack, R.S. ; Seidenberg Sch. of CSIS, Pace Univ., White Plains, NY, USA ; Tappert, C.C. ; Sung-Hyuk Cha

Over the last six years Pace University has been developing a long-text-input keystroke biométrie system. The system consists of three components: a java applet that collects raw keystroke data over the Internet, a feature extractor, and a pattern classifier. This paper presents two significant system improvements. The first achieves high performance with a closed system of known users and shows how performance changes as the system is opened (diluted) by additional users. The second is the extension of the k-nearest-neighbor classification method to directly derive Receiver Operating Characteristic curves from the classification data. Performance results on 120 participants are presented.

Published in:

Biometrics: Theory Applications and Systems (BTAS), 2010 Fourth IEEE International Conference on
Biometrics Compendium, IEEE

Date of Conference:

27-29 Sept. 2010