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  2008, Vol. 21 Issue (1): 122-128    DOI:
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Offline Signature Verification Based on Optimal Rules of Fuzzy Modeling
TIAN Wei, QIAO YiZheng, MA ZhiQiang
School of Control Science and Engineering, Shandong University, Jinan 250061

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Abstract  A new offline signature verification system based on fuzzy modeling of multiple rules is proposed. In this system, both static and pseudodynamic features are extracted to make up for the loss of dynamic information and their variation is described by fuzzy sets. Then the new weight coefficients by the membership functions are devised to reflect the contribution of different fuzzy rules to verification results. In addition, the optimal selection of multiple rules by the reliable estimate of Kfold crossvalidation is presented to reduce the computational complexity of the entire fuzzy system. Databases of Chinese and English signatures are applied to the experiments and the average error rates of 9.52% and 12.67% are obtained. Thus the effectiveness of the proposed system is validated.
Key wordsOffline Signature Verification      Fuzzy Modeling      Optimal Rules      KFold CrossValidation     
Received: 20 November 2006     
ZTFLH: TP391.4  
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TIAN Wei
QIAO YiZheng
MA ZhiQiang
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TIAN Wei,QIAO YiZheng,MA ZhiQiang. Offline Signature Verification Based on Optimal Rules of Fuzzy Modeling[J]. , 2008, 21(1): 122-128.
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