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Identity verification based on haptic handwritten signatures: Genetic programming with unbalanced data

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3 Author(s)
Alsulaiman, F.A. ; Sch. of Electr. Eng. & Comput. Sci. (EECS), Univ. of Ottawa, Ottawa, ON, Canada ; Valdes, J.J. ; El Saddik, A.

In this paper, haptic-based handwritten signature verification using Genetic Programming (GP) classification is presented. The relevance of different haptic data types (e.g., force, position, torque, and orientation) in user identity verification is investigated. In particular, several fitness functions are used and their comparative performance is investigated. They take into account the unbalance dataset problem (large disparities within the class distribution), which is present in identity verification scenarios. GP classifiers using such fitness functions compare favorably with classical methods. In addition, they lead to simple equations using a much smaller number of attributes. It was found that collectively, haptic features were approximately as equally important as visual features from the point of view of their contribution to the identity verification process.

Published in:

Computational Intelligence for Security and Defence Applications (CISDA), 2012 IEEE Symposium on

Date of Conference:

11-13 July 2012