Monday , June 18 2018

Intelligent Collaborative Support System for AHP-Group Decision Making

Gang KOU1, Xiangrui CHAO2, Yi PENG2, Liang XU1, Yang CHEN1
1 School of Business Administration, Southwestern University of Finance and Economics,
No.555, Liutai Ave, Wenjiang Zone, Chengdu, 611130, China.
2 School of Management and Economics, University of Electronic Science and Technology of China,
No. 2006, Xiyuan Ave, West Hi-Tech Zone, Chengdu, 611731, China.
Corresponding author : Yi Peng, e-mail:

ABSTRACT: Analytic hierarchy process group decision making obtains the group’s collective preference relationship based on the pair-wise comparative matrix of each decision maker by means of some aggregation rules, such as the aggregation of individual judgments and the aggregation of individual priorities. Then, consensus-reaching models are employed to help decision makers improve the consensus degree when the results are undesirable. A new preference aggregation method is proposed to integrate individual preference, which occurs when the group preference is nearest to all the individual priority vectors with weights by means of different optimization models. We further developed intelligent consensus-reaching model by adjusting the individual pair-wise comparison matrix in order to improve the acceptable individual priorities compared to the proposed group preference by the optimization models. The methods can directly improve a consensus-reaching degree without interactive preference modifications base on simple group preference aggregation method with row geometric mean. Some illustrative examples are examined to demonstrate the proposed models for application.

KEYWORDS: T Group decision making; Row geometric mean; Consensus reaching; Optimization method.


Gang Kou, Xiangrui Chao, Yi Peng, Liang Xu, Yang Chen,
Intelligent Collaborative Support System for AHP-Group Decision Making, Studies in Informatics and Control, ISSN 1220-1766, vol. 26(2), pp. 131-142, 2017.