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dc.contributor.authorChiclana, Franciscoen
dc.contributor.authorLiu, Yujiaen
dc.contributor.authorLiang, Changyongen
dc.contributor.authorWu, Jianen
dc.date.accessioned2017-01-03T13:34:21Z
dc.date.available2017-01-03T13:34:21Z
dc.date.issued2016-12-18
dc.identifier.citationLiu, Y., Liang, C. Chiclana, F. and Wu, J. (2016) A trust induced recommendation mechanism for reaching consensus in group decision making. Knowledge-Based Systems, online firsten
dc.identifier.urihttp://hdl.handle.net/2086/13138
dc.descriptionThe file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.en
dc.description.abstractThis article addresses the inconsistency problem in group decision making caused by disparate opinions of multiple experts. To do so, a trust induced recommendation mechanism is investigated to generate personalised advices for the inconsistent experts to reach higher consensus level. The concept of trust degree (TD) is defined to identify the trusted opinion from group experts, and then the visual trust relationship is built to help experts ‘see’ their own trust preferences within the group. Consequently, trust based personalised advices are generated for the inconsistent experts to revisit their opinions. To model the uncertainty of experts, an interval-valued trust decision making space is defined. It includes the novel concepts of interval-valued trust functions, interval-valued trust score (IVTS) and interval-valued knowledge degree (IVKD). The concepts of consensus degree (CD) between an expert and the rest of experts in the group as well as the harmony degree (HD) between the original opinion and the revised opinion are developed for interval-valued trust functions. Combining HD and CD, a more reasonable policy for group consensus is proposed as it should arrive at the threshold value with the maximum value of harmony and consensus degrees simultaneously. Furthermore, because the trust induced recommendation mechanism focuses on changing inconsistent opinions using only opinions from the trusted experts and not from the distrusted ones, the HD based changes cost to reach the threshold value of consensus is lower than previous mechanisms based on the average of the opinion of all experts. Finally, once consensus has been achieved, a ranking order relation for interval-valued trust functions is constructed to select the most appropriate alternative.en
dc.language.isoenen
dc.publisherElsevieren
dc.subjectGroup decision makingen
dc.subjectRecommendation mechanismen
dc.subjectGroup consensusen
dc.subjectTrust degreeen
dc.subjectHarmony degreeen
dc.titleA trust induced recommendation mechanism for reaching consensus in group decision makingen
dc.typeArticleen
dc.identifier.doihttp://dx.doi.org/10.1016/j.knosys.2016.12.014
dc.researchgroupCentre for Computational Intelligenceen
dc.peerreviewedYesen
dc.funderThe authors are very grateful to the anonymous referees for their valuable comments and suggestions. This work was supported by National Natural Science Foundation of China (NSFC) under the Grant No.71331002 and 71571166, Zhejiang Provincial Natural Science Foundation of China No. LY15G010003, and Zhejiang Provincial Philosophy and Social Science Foundation-Zhijiang Young Talent of Social Science (No.16ZJQN046YB)en
dc.projectidThe authors are very grateful to the anonymous referees for their valuable comments and suggestions. This work was supported by National Natural Science Foundation of China (NSFC) under the Grant No.71331002 and 71571166, Zhejiang Provincial Natural Science Foundation of China No. LY15G010003, and Zhejiang Provincial Philosophy and Social Science Foundation-Zhijiang Young Talent of Social Science (No.16ZJQN046YB)en
dc.cclicenceCC-BY-NC-NDen
dc.date.acceptance2016-12-16en
dc.researchinstituteInstitute of Artificial Intelligence (IAI)en


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