基于证据价值的冲突证据合成方法

计算机工程与科学

基于证据价值的冲突证据合成方法

丁文静1，刘以安1，薛松2

（1.江南大学物联网工程学院，江苏无锡 214122;2.中国舰船研究院，北京 100192)

收稿日期:2015-08-19 修回日期:2015-09-21 出版日期:2016-08-25 发布日期:2016-08-25
基金资助:
国家自然科学基金（61170120）

A conflict evidences combination method based on each evidence value

DING Wen-jing1，LIU Yi-an1，XUE Song2

（1.School of Internet of Things Engineering,Jiangnan University,Wuxi 214122;
2.China Ship Research & Development Academy,Beijing 100192，China）

Received:2015-08-19 Revised:2015-09-21 Online:2016-08-25 Published:2016-08-25

摘要/Abstract

摘要：

证据理论作为一种不确定性推理，广泛应用于人工智能、信息融合等方面。针对高冲突证据在组合过程中易产生各种与事实相悖的结论，提出了基于证据价值的冲突证据合成方法。此方法首先定义了证据价值的标尺，借用欧氏距离的概念计算证据自身价值，并规则化作为权重，然后引入未知项，修正证据源，再利用D-S合成公式对证据进行合成。实例分析表明，此方法在处理冲突证据时是有效、可行的。

关键词: 证据理论, 冲突证据, 证据价值, 修正证据源

Abstract:

The evidence theory is widely applied in artificial intelligence and information fusion fields as a kind of indefinite inference, however, the Dempster combination rule is not reasonable when dealing with conflict evidences and its result is also invalid. To solve this problem, we present a combination method of conflict evidences based on each evidence value. Firstly, the standard scale of the evidence value is defined. Secondly, each evidence value is calculated by the Euclidean distance and they are regularized as their evidence weight. Then an uncertain part is introduced to modify the evidences. Finally, the evidences are combined by using the Dempster-Shafer combination method. The analysis of classical examples shows that the proposal is effective and feasible when evidences conflict.

Key words: evidence theory, conflict evidence, evidence value, evidence source modification

丁文静1，刘以安1，薛松2. 基于证据价值的冲突证据合成方法[J]. 计算机工程与科学.

DING Wen-jing1，LIU Yi-an1，XUE Song2. A conflict evidences combination method based on each evidence value [J]. Computer Engineering & Science.

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