计算机科学 ›› 2018, Vol. 45 ›› Issue (12): 160-165.doi: 10.11896/j.issn.1002-137X.2018.12.025
吴文华1, 宋亚飞2, 刘晶1
WU Wen-hua1, SONG Ya-fei2, LIU Jing1
摘要: 基于证据理论与直觉模糊集之间的关系,提出了一种新的证据可靠性评估方法,该方法可以在先验知识缺乏的情况下,对各证据源的可靠性进行评估。首先,将证据理论中的基本概率赋值函数(Basic Probability Assignment,BPA)转化为直觉模糊集;然后,通过直觉模糊集之间的相似度度量对各BPA之间的相似度进行计算;在此基础上,提出证据支持度的概念,通过分析证据支持度与证据可靠性之间的关系,获得证据的相对可靠性和绝对可靠性;最后,基于证据折扣运算对原始证据进行修正,采用Dempster组合规则对修正后的证据进行组合。此外,基于直觉模糊框架内的证据可靠性评估,提出了一种多传感器融合方法,通过数值实验对该方法的性能进行了对比分析,结果表明,该方法可以实现对不可靠证据的有效评估。
中图分类号:
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