A Novel Tolerance-Based Moderator Guided Heterogeneous Group Decision-Making Involving Experts and End-Users

Manisha Singh (), Gaurav Baranwal and Anil Kumar Tripathi ()
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Manisha Singh: Department of Computer Science and Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
Gaurav Baranwal: ��Department of Computer Science, Institute of Science, Banaras Hindu University, Varanasi, India
Anil Kumar Tripathi: Department of Computer Science and Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi, India

International Journal of Information Technology & Decision Making (IJITDM), 2023, vol. 22, issue 04, 1253-1288

Abstract: This study focuses on two issues of group decision-making (GDM). First, the multiple rounds of feedback recommendations in the consensus reaching process (CRP) make GDM inefficient. The second is no involvement of heterogeneous decision-makers (DMs), possibly end-users as stakeholders apart from the experts. To address the first issue, a novel threshold-based feedback mechanism is introduced to improve the efficiency of the CRP that helps the experts reach consensus in at most one round of feedback. To address the second issue, end-users are invited to participate in decision-making where their majority group opinion is used. Then, a novel concept of tolerance degree of the moderator is proposed to obtain the final decision considering the consensual opinion of experts and cumulative opinion of end-users. The effectiveness of the proposed method is demonstrated through a case of healthcare service selection. Further, various experiments are conducted to show how the proposed work outperforms the existing works.

Keywords: Consensus reaching process (CRP); group decision-making (GDM); heterogeneous decision-makers; tolerance-based moderator (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1142/S0219622022500651

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