证据推理理论组合规则评价方法研究

证据推理理论(包括DS理论和DSm理论)是处理不确定信息的重要方法,其组合规则性能的好坏直接影响推理结果.为了有效评价证据推理理论组合规则的性质,总结了基于DS理论的组合规则评价方法存在的问题,并深入分析了问题出现的原因;根据DSm理论的特点,提出了基于DSm理论组合规则的评价方法.该评价方法主要从冲突证据处理、证据时序性和计算量3个方面对基于DS理论的组合规则评价方法进行了改进.

Research on Combination Rule Evaluation Method in Evidence Reasoning Theory

The evidence reasoning theory, which includes Dempster-Shater （DS） theory and Dezert- Smarandache （DSm） theory, is an important method for processing the non-deterministic information, and its performance of combination rules directly influences the reasoning results. To effectively assess the properties of combination rules in evidence reasoning theory, this paper sums up the problems existing in the assessment method of combination rules based on DS theory and analyzes deeply the reasons for those problems, and then presents the evaluation method based on DSm theory＇s combination rules in terms of the features of DSm theory. This proposed assessment method improves the combination rule evaluation method based on DS theory, in terms of the three issues of conflict evidence processing, time series and complex computation.