DocumentCode :
2915085
Title :
Combination of off-line and on-line signature verification systems based on SVM and DST
Author :
Abbas, Nassim ; Chibani, Youcef
Author_Institution :
Speech Commun. & Signal Process. Lab., Univ. of Sci. & Technol. Houari Boumediene (USTHB), Algiers, Algeria
fYear :
2011
fDate :
22-24 Nov. 2011
Firstpage :
855
Lastpage :
860
Abstract :
The objective of this work is to present a signature verification system based on combination of off-line and online systems for managing conflict provided by the Support Vector Machine (SVM) classifiers. This system is basically divided into three parts: i) off-line verification stage, ii) on-line verification stage and iii) combination module using Dempster-Shafer theory (DST). The proposed framework allows combining the normalized SVM outputs and uses an estimation technique based on the dissonant model of Appriou to compute the belief assignments. Combination is performed using Dempster-Shafer (DS) rule followed by the likelihood ratio based decision making. Experiments are conducted on the well know NISDCC signature collection using false rejection and false acceptance criteria. The obtained results show that the proposed combination framework using DST yields the best verification accuracy compared to the sum rule even when individual off-line and on-line classifications provide conflicting results.
Keywords :
decision making; handwriting recognition; inference mechanisms; pattern classification; support vector machines; DST; Dempster-Shafer rule; Dempster-Shafer theory; NISDCC signature collection; SVM classifier; decision making; false acceptance criteria; false rejection; likelihood ratio; off-line signature verification system; off-line verification stage; on-line signature verification system; on-line verification stage; sum rule; support vector machine; Biometrics; Error analysis; Forgery; Kernel; Probabilistic logic; Support vector machines; Dempster-Shafer theory; Off-line signature verification; On-line signature verification; Support Vector Machines; belief assignments; conflict;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Intelligent Systems Design and Applications (ISDA), 2011 11th International Conference on
Conference_Location :
Cordoba
ISSN :
2164-7143
Print_ISBN :
978-1-4577-1676-8
Type :
conf
DOI :
10.1109/ISDA.2011.6121764
Filename :
6121764
Link To Document :
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