Deriving Weights of the Decision Makers Using AHP Group Consistency Measures

Issue title: Theory and Practice of Pairwise Comparisons

Guest editors: Ryszard Janicki and Konrad Kułakowski

Article type: Research Article

Authors: Blagojevic, Bosko^* | Srdjevic, Bojan | Srdjevic, Zorica | Zoranovic, Tihomir

Affiliations: University of Novi Sad, Faculty of Agriculture, Department of Water Management, Trg D. Obradovica 8, 21000 Novi Sad, Serbia. blagojevicb@polj.uns.ac.rs

Correspondence: [*] Address for correspondence: University of Novi Sad, Faculty of Agriculture, Department of Water Management, Trg D. Obradovica 8, 21000 Novi Sad, Serbia

Abstract: In AHP group decision making it is desirable that decision makers achieve the highest degree of consensus concerning the group priority vector at both levels, local and the final. Based on this philosophy, we have developed a method to derive local group priority vector respecting the three group consistency measures: geometric cardinal consensus index (GCCI), group minimum violation coefficient (GMV) and ordinal consensus measure (OCM). Consistency of individual decisions against the group decision serves as an input to determine the weights of decision makers participating in the group and generate the group local priority vector. Proposed method rewards cooperation between members of the group and raises chances for their consensus.

Keywords: AHP group decision making, weights of decision makers, group consistency measures

DOI: 10.3233/FI-2016-1342

Journal: Fundamenta Informaticae, vol. 144, no. 3-4, pp. 383-395, 2016