期刊
INFORMATION PROCESSING LETTERS
卷 115, 期 2, 页码 248-252出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ipl.2014.09.022
关键词
Information retrieval; Dempster-Shafer evidence theory; Temporal fusion; Credibility decay; Evidence discount
资金
- National Natural Science Foundation of China [61273275, 60975026]
Data fusion in time domain is sequential and dynamic. Methods to deal with evidence conflict in spatial domain may not suitable in temporal domain. It is significant to determine the dynamic credibility of evidence in time domain. The Markovian requirement of time domain fusion is analyzed based on Dempster's combination rule and evidence discount theory. And the credibility decay model is presented to get the dynamic evidence credibility. Then the evidence is discounted by dynamic discount factor. It's illustrated that such model can satisfied the requirement of data fusion in time domain. Proper and solid decision can be made by this approach. (C) 2014 Elsevier B.V. All rights reserved.
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