Journal on Communications ›› 2015, Vol. 36 ›› Issue (5): 98-103.doi: 10.11959/j.issn.1000-436x.2015104

• Academic paper • Previous Articles     Next Articles

Evidence combination based on the degree of credibility and falsity

ONGYa-fei S,ANGXiao-dan W,EILei L,UEAi-jun X   

  1. Air and Missile Defense College,Air Force Engineering University,Xi'an 710051,China
  • Online:2015-05-20 Published:2015-07-17
  • Supported by:
    The National Natural Science Foundation of China;The National Natural Science Foundation of China

Abstract:

D-S evidence theory has been widely used in various fields of information fusion due to its efficiency in deal-ing with uncertain information.Unfortunately,combination of conflicting evidences by classical Dempster's rule may produce counter-intuitive results.To alleviate this problem,a new weighted average combination rule is proposed.Defi-nitions of correlation coefficient was first presented,followed by the introduction of falsity.Then the credibility of evi-dence is proposed.A new weighted coefficient is determined by credibility and falsity.To achieve convergence,the nor-malized weighted coefficient was suggested into the Dempster's combination rule to average the basic probability as-signment.Comparable numerical examples demonstrate that the proposed approach can combine conflicting evidences more effectively.Moreover,the proposed methodology can provide a faster identification of the observed object.

Key words: D-S evidence theory, evidence combination, evidence conflict, correlation coefficient, credibility, falsity

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