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Combining classifiers using the Dempster-Shafer theory of evidence.

机译:使用证据的Dempster-Shafer理论组合分类器。

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摘要

As organizations strive for means of providing more secure methods for user access, biometrics is gaining increasing attention. However a biometric recognition system good for one case study may not be accurate for the other one. One solution to the problem is combining classifiers; so that the complementary information departed by different classifiers could be combined, in an efficient way, to achieve a much better recognition rate as compared to the participating experts. In this context the Dempster Shafer theory of evidence (DST) has shown some promising results; however the DST has not yet been explored for the problem of biometric recognition systems. In this thesis we have proposed three novel algorithms to combine different biometric systems using the DST. NNEF (Nearest Neighbor Based Evidence Fusion) algorithm uses the nearest neighbor distance of the participating experts as an evidence estimation parameter; RREF (Recognition Rate Based Evidence Fusion) algorithm uses the performance parameters of the participating experts for evidence estimation and VEF (Variance Based Evidence Fusion) algorithm uses the second order statistics of decision parameters to estimate the belief in the combining experts. (Abstract shortened by UMI.)
机译:随着组织努力为用户访问提供更为安全的方法的手段,生物识别技术越来越受到关注。但是,对一个案例研究有益的生物特征识别系统对另一案例可能并不准确。解决该问题的一种方法是组合分类器。因此,与参与调查的专家相比,可以有效地组合由不同分类器提供的补充信息,以实现更高的识别率。在这种情况下,Dempster Shafer证据理论(DST)已显示出一些有希望的结果。但是,尚未针对生物识别系统的问题探索DST。在这篇论文中,我们提出了三种新颖的算法来结合使用DST的不同生物识别系统。 NNEF(基于最近邻居的证据融合)算法使用参与专家的最近邻居距离作为证据估计参数; RREF(基于识别率的证据融合)算法使用参与专家的性能参数进行证据估计,而VEF(基于方差的证据融合)算法使用决策参数的二阶统计量来评估合并专家的信念。 (摘要由UMI缩短。)

著录项

  • 作者

    Naseem, Imran.;

  • 作者单位

    King Fahd University of Petroleum and Minerals (Saudi Arabia).;

  • 授予单位 King Fahd University of Petroleum and Minerals (Saudi Arabia).;
  • 学科 Engineering Electronics and Electrical.
  • 学位 M.S.
  • 年度 2005
  • 页码 132 p.
  • 总页数 132
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

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