Combination Method of Evidence Grouping
Rong Li Chen, Xi Bin Wang · Advances in intelligent systems research/Advances in Intelligent Systems Research · 2015
The theory of Evidence reasoning is an important method for processing uncertain information, in order to improve the accuracy of evidence fusion and to reduce the amount of operation, and ensure that combining results are still reasonable and effective when it happens to information conflicting, so this paper presents combination method of evidence grouping.The method can be used to judge whether it is available to combine with Dempster combination rule in evidence, if it works, the two evidences are classified as known groups, otherwise they are classified as unknown groups.For the known evidence, it makes use of combination rule to combine directly(combination within the group); the data obtained by the combination within the group and the data of an unknown group can combine in groups using computer simulation techniques, this paper analyzes the method that it is provided with characteristics of small operation, good stability, high accuracy. Dempster Fundamentals RulesDemspter-Shafer theory has been put forward by Demspter in 1976,and been improved and expanded by shafer, Demspter-Shafer theory is also been known D-S Theory(DST).DS evidence theory is an important method in uncertainty reasoning,and for uncertainty and unknow evidence ,the D-S evidence theory is more suitable than traditional probabilistic.Furthermore, various of evidence can be combinated by combination rule of D-S Theory.The relevant rules of D-S Theory as follows:Θ is defined as a frame of discremment in evidence theory, if the set function can meet the following two conditions: