Conflict Data Fusion in a Multi-Agent System Premised on the Base Basic Probability Assignment and Evidence Distance

The multi-agent information fusion (MAIF) system can alleviate the limitations of a single expert system in dealing with complex situations, as it allows multiple agents to cooperate in order to solve problems in complex environments. Dempster–Shafer (D-S) evidence theory has important applications...

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Main Authors: Jingyu Liu, Yongchuan Tang
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/23/7/820
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author Jingyu Liu
Yongchuan Tang
author_facet Jingyu Liu
Yongchuan Tang
author_sort Jingyu Liu
collection DOAJ
description The multi-agent information fusion (MAIF) system can alleviate the limitations of a single expert system in dealing with complex situations, as it allows multiple agents to cooperate in order to solve problems in complex environments. Dempster–Shafer (D-S) evidence theory has important applications in multi-source data fusion, pattern recognition, and other fields. However, the traditional Dempster combination rules may produce counterintuitive results when dealing with highly conflicting data. A conflict data fusion method in a multi-agent system based on the base basic probability assignment (bBPA) and evidence distance is proposed in this paper. Firstly, the new bBPA and reconstructed BPA are used to construct the initial belief degree of each agent. Then, the information volume of each evidence group is obtained by calculating the evidence distance so as to modify the reliability and obtain more reasonable evidence. Lastly, the final evidence is fused with the Dempster combination rule to obtain the result. Numerical examples show the effectiveness and availability of the proposed method, which improves the accuracy of the identification process of the MAIF system.
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spelling doaj.art-8234e827b15144f483cd248ba55638582023-11-22T01:58:20ZengMDPI AGEntropy1099-43002021-06-0123782010.3390/e23070820Conflict Data Fusion in a Multi-Agent System Premised on the Base Basic Probability Assignment and Evidence DistanceJingyu Liu0Yongchuan Tang1School of Big Data and Software Engineering, Chongqing University, Chongqing 401331, ChinaSchool of Big Data and Software Engineering, Chongqing University, Chongqing 401331, ChinaThe multi-agent information fusion (MAIF) system can alleviate the limitations of a single expert system in dealing with complex situations, as it allows multiple agents to cooperate in order to solve problems in complex environments. Dempster–Shafer (D-S) evidence theory has important applications in multi-source data fusion, pattern recognition, and other fields. However, the traditional Dempster combination rules may produce counterintuitive results when dealing with highly conflicting data. A conflict data fusion method in a multi-agent system based on the base basic probability assignment (bBPA) and evidence distance is proposed in this paper. Firstly, the new bBPA and reconstructed BPA are used to construct the initial belief degree of each agent. Then, the information volume of each evidence group is obtained by calculating the evidence distance so as to modify the reliability and obtain more reasonable evidence. Lastly, the final evidence is fused with the Dempster combination rule to obtain the result. Numerical examples show the effectiveness and availability of the proposed method, which improves the accuracy of the identification process of the MAIF system.https://www.mdpi.com/1099-4300/23/7/820Dempster–Shafer evidence theoryuncertaintymulti-agent information fusionbase basic probability assignment
spellingShingle Jingyu Liu
Yongchuan Tang
Conflict Data Fusion in a Multi-Agent System Premised on the Base Basic Probability Assignment and Evidence Distance
Entropy
Dempster–Shafer evidence theory
uncertainty
multi-agent information fusion
base basic probability assignment
title Conflict Data Fusion in a Multi-Agent System Premised on the Base Basic Probability Assignment and Evidence Distance
title_full Conflict Data Fusion in a Multi-Agent System Premised on the Base Basic Probability Assignment and Evidence Distance
title_fullStr Conflict Data Fusion in a Multi-Agent System Premised on the Base Basic Probability Assignment and Evidence Distance
title_full_unstemmed Conflict Data Fusion in a Multi-Agent System Premised on the Base Basic Probability Assignment and Evidence Distance
title_short Conflict Data Fusion in a Multi-Agent System Premised on the Base Basic Probability Assignment and Evidence Distance
title_sort conflict data fusion in a multi agent system premised on the base basic probability assignment and evidence distance
topic Dempster–Shafer evidence theory
uncertainty
multi-agent information fusion
base basic probability assignment
url https://www.mdpi.com/1099-4300/23/7/820
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AT yongchuantang conflictdatafusioninamultiagentsystempremisedonthebasebasicprobabilityassignmentandevidencedistance