{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,2]],"date-time":"2026-05-02T06:54:39Z","timestamp":1777704879893,"version":"3.51.4"},"reference-count":62,"publisher":"SAGE Publications","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IFS"],"published-print":{"date-parts":[[2023,12,2]]},"abstract":"<jats:p>Large-scale group decision-making (LSGDM) issues are increasingly prevalent in modern society across various domains. The preference information has emerged as a widely adopted approach to tackle LSGDM problems. However, a significant challenge lies in facilitating consensus among decision-makers (DMs) with diverse backgrounds while considering their hesitation and psychological behavior. Consequently, there is a pressing need to establish a novel model that enables DMs to evaluate alternatives with heterogeneous preference relations (HPRs). To this end, this research presents a new consensus-building method to address LSGDM problems with HPRs. First, a novel approach for solving collective priority weight is introduced based on cosine similarity and prospect theory. In particular, a new cosine similarity measure is defined for HPRs. Subsequently, a consensus index is provided to gauge the consensus level among DMs by considering their psychological behavior and risk attitudes. Further, a consensus-reaching model is developed to address LSGDM with HPRs. Finally, an instance of supplier selection is presented to demonstrate the practicality and efficacy of the proposed method.<\/jats:p>","DOI":"10.3233\/jifs-231456","type":"journal-article","created":{"date-parts":[[2023,10,10]],"date-time":"2023-10-10T12:08:50Z","timestamp":1696939730000},"page":"11549-11566","source":"Crossref","is-referenced-by-count":0,"title":["Prospect theory-based large-scale group decision-making method with heterogeneous preference relations"],"prefix":"10.1177","volume":"45","author":[{"given":"Kaixin","family":"Gong","sequence":"first","affiliation":[{"name":"School of Economics and Management, Tongji University, Shanghai, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Weimin","family":"Ma","sequence":"additional","affiliation":[{"name":"School of Economics and Management, Tongji University, Shanghai, 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