Abstract:

The combination rule of conflict evidences and the required heavy computational load have been the important issues in Dempster-Shafer (D-S) theory. Many improved methods have been proposed, but each of them has their limitations. For example, the Murphy method,though efficient for solving the conflict evidence to a great extent, still leaves the heavy computational load open. On the basis of the research to the Murphy method, the combination law of identical evidences is discovered, and then a fast Murphy combination rule (FMCR) and the related expression are proposed. Experiments show that the new rule can effectively deal with high conflicting evidence and multi-source uncertain information fusion problems with an improvement in speed and accuracy.