Self-adaptive combination method for temporal evidence based on negotiation strategy
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. RESEARCH PAPER .
November 2020, Vol. 63 210204:1–210204:13 https://doi.org/10.1007/s11432-020-3045-5
Special Focus on Multi-source Information Fusion
Self-adaptive combination method for temporal evidence based on negotiation strategy Yafei SONG1* , Jingwei ZHU2 , Lei LEI3 & Xiaodan WANG1 1
College of Air and Missile Defense, Air Force Engineering University, Xi’an 710051, China; 2 Institute of High Technology, Air Force Engineering University, Xi’an 710051, China; 3 College of Information and Navigation, Air Force Engineering University, Xi’an 710051, China Received 21 May 2020/Revised 15 July 2020/Accepted 31 July 2020/Published online 20 October 2020
Abstract In temporal information fusion, the information collected by sensors is obtained dynamically with the passage of time. Unlike the spatial information fusion, temporal fusion should be dynamic. Evidence theory has been applied to fuse temporal and spatial information; however, existing temporal fusion methods do not treat conflicting and non-conflicting evidence sources distinctively. Moreover, unlike spatial evidence sources, which are obtained simultaneously, temporal evidence sources cannot be evaluated simultaneously to obtain their degree of reliability. Thus, it is necessary to develop a method for temporal evidence combination. In this paper, a self-adaptive combination method for temporal evidence is proposed based on the negotiation strategy. In the proposed method, a set called an evidence set is constructed by the cumulative temporal fusion results of the previous moment, current moment, and future moment. The evidence set is evaluated as conflicting or non-conflicting according to the maximum power pignistic probability distance between each pair of evidence sources in the set. Then, temporal evidence sources are self-adaptively combined by different methods according to the degree of conflict. Numerical experiments were conducted to evaluate the performance of the proposed method. The results indicated that the proposed method is sufficiently effective and robust to support decision making. Keywords strategy
information fusion, evidence theory, temporal fusion, self-adaptive combination, negotiation
Citation Song Y F, Zhu J W, Lei L, et al. Self-adaptive combination method for temporal evidence based on negotiation strategy. Sci China Inf Sci, 2020, 63(11): 210204, https://doi.org/10.1007/s11432-020-3045-5
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Introduction
Most applications related to information fusion are likely to be affected by time. In other words, information fusion in the time domain must be considered when information fusion is applied to solve practical problems. For example, comprehensive target identification is affected by interference and sensor performance. Thus, the information obtained from the sensor at a single instant may be not accurate, and incomplete information may have to be fused from multiple time points to obtain reliable results. Therefore, comprehensive target identification based on multiple sensor platforms is a sequential recognition pro
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