Rongrong Ren1,2, Luyang Su1,2, Xinyu Meng1,2, Jianfang Wang3, Meng Zhao1,2,4,*
CMES-Computer Modeling in Engineering & Sciences, Vol.138, No.1, pp. 429-458, 2024, DOI:10.32604/cmes.2023.027310
Abstract With the development of big data and social computing, large-scale group decision making (LGDM) is now merging
with social networks. Using social network analysis (SNA), this study proposes an LGDM consensus model that
considers the trust relationship among decision makers (DMs). In the process of consensus measurement: the social
network is constructed according to the social relationship among DMs, and the Louvain method is introduced to
classify social networks to form subgroups. In this study, the weights of each decision maker and each subgroup
are computed by comprehensive network weights and trust weights. In the process of consensus improvement:
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