Fact reasoning with reliable D-S evidence theory

Authors:
Wang Ping;Xuemei Zhu
Affiliations:
Key Laboratory of Evidence Science, China University of Political Science and Law, Ministry of Education, Beijing, China and Electric and Information College, Xihua University, Chengdu, China;Political College, Xihua University, Chendu, China
Venue:
IITA'09 Proceedings of the 3rd international conference on Intelligent information technology application
Year:
2009

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Abstract

This paper introduced a reasoning method based on D-S evidence theory for inferring the facts of a law case. For repairing shortage of classic D-S theory, the reliability factor D and correlative coefficient r are introduced to decrease the influence of uncertain evidence and correlative evidence on reasoning conclusion. To apply the method to legal reasoning correctly, it is needed to decide the belief degree of evidence. Some basic rules are put forward to decide the belief degree of some kinds of evidences. There is an example to expound how to apply this method to fuse evidences and get correct conclusion.