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A Maximum Consensus Improvement Method for Group Decision Making Under Social Network with Probabilistic Linguistic Information

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Abstract

Group decision-making (GDM) requires consensus building, because an outcome from a consensual decision is indispensable to implement a highly acceptable solution. This paper proposes a novel consensus reaching method for GDM with Probabilistic Linguistic Term Set (PLTS) under a social network environment. First, the preferences and trust evaluations of decision-makers (DMs) are collected using PLTS. Then, two types of centralities are utilized to obtain the significance of DMs, and these centralities are used to derive the group evaluation. Then, a consensus measure is employed to quantify the degree of agreement within the group. To promote further consensus, a novel feedback mechanism that combines the Identification and Direction Rule-based method with an optimization-based approach is developed to achieve maximum consensus improvement in each round of modification. Moreover, DM’s bounded rationality is factored into the GDM process for a more reliable result. Finally, illustrative examples and comparison analyses are conducted to demonstrate the effectiveness of the proposed method.

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  1. China Academy of Aerospace Systems Science and Engineering, Beijing, 100035, China

    Zhen Hua & Huifeng Xue

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  1. Zhen Hua
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  2. Huifeng Xue
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Correspondence to Zhen Hua.

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Hua, Z., Xue, H. A Maximum Consensus Improvement Method for Group Decision Making Under Social Network with Probabilistic Linguistic Information. Neural Process Lett 54, 437–465 (2022). https://doi.org/10.1007/s11063-021-10639-y

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