Evidence synthesis method and module, and multiple Agent diagnosis system

Abstract

The invention discloses an evidence synthesis method and module, and a multiple Agent diagnosis system. The evidence synthesis method includes the steps: calculating the distance between every two evidences in an evidence set; according to the distance between every two evidences, calculating the similarity between every two evidences; according to the similarity between every two evidences, calculating the support degree of each evidence; according to the support degree of each evidence, calculating the credibility of each evidence; and taking the credibility of each evidence as weight, performing weighted average on the elementary probability assignment of the evidences in the evidence set, and synthesizing the evidences in the evidence set so as to solve the conflict problem of evidences and realize valid synthesis of multi-source evidences.

Description

technical field [0001] The invention relates to the field of multi-Agent diagnosis, in particular to an evidence synthesis method, a module and a multi-Agent diagnosis system. Background technique [0002] Dempster's combination rule has always been an important and difficult problem that plagues the theory of evidence, which is directly related to the practicability of the theory of evidence. In the process of multi-agent parallel diagnosis, the existence of conflict is inevitable. For the synthesis of highly conflicting and completely conflicting evidence, the synthesis result may be incorrect if the conflicting evidence is negated or one of the conflicting evidences is negated only. Therefore, how to realize the effective synthesis of multi-source evidence in the case of highly conflicting and completely conflicting evidence is an urgent problem to be solved, and many scholars have proposed many different ideas and methods for improvement. In general, these methods can ...

AI Technical Summary

Problems solved by technology

In general, these methods can be divided into two categories: one is that there is no problem with the Dempster synthesis rules, and the evidence given needs to be modified, such as the Murphy method; the other is that there is a problem with the Dempster synthesis rules, and the synthesis rules need to be modified. Such as the Yager method, but these methods do not fundamentally solve the problem of evidence conflicts, to a certain extent solve the problem of evidence conflicts, but at the same time bring new problems, and cannot realize the effective synthesis of multi-source evidence

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