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JACIII Vol.26 No.2 pp. 196-205
doi: 10.20965/jaciii.2022.p0196
(2022)

Paper:

Evolutionary Computation System Solving Group Decision Making Multiobjective Problems for Human Groups

Hironao Sakamoto, Kotaro Nakamoto, and Kei Ohnishi

Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology
680-4 Kawazu, Iizuka, Fukuoka 820-8502, Japan

Received:
July 31, 2021
Accepted:
January 31, 2022
Published:
March 20, 2022
Keywords:
evolutionary computation, multi-agent system, group decision making multiobjective problems, consensus, convergence
Abstract
Evolutionary Computation System Solving Group Decision Making Multiobjective Problems for Human Groups

Problem-solving system for human groups

In a previous work, we proposed an evolutionary computation system designed to solve group decision making multiobjective problems for human groups, which is equivalent to obtaining consensus solutions to multiobjective optimization problems. Multi-human-agent-based evolutionary computation (Mhab-EC) is a primary component of the system, used to obtain converged solutions for multiobjective optimization problems. The other main component is a mechanism that allows owners of simulated human agents to review simulation results thus far and adjust their agents accordingly between successive simulation runs of the Mhab-EC. However, in our previous study, we simply conducted simulations to demonstrate that a single run yielded converged solutions. Consensus solutions were assumed to be obtained through iterations of the Mhab-EC run and agent adjustment. Therefore, in this study, we conducted simulations of the entire system, including the agent adjustment mechanism. For this purpose, we implemented a simple model of agent adjustment by owners to facilitate solution convergence. Simulation results showed that the system indeed yielded converged solutions, which are considered to indicate consensus.

Cite this article as:
Hironao Sakamoto, Kotaro Nakamoto, and Kei Ohnishi, “Evolutionary Computation System Solving Group Decision Making Multiobjective Problems for Human Groups,” J. Adv. Comput. Intell. Intell. Inform., Vol.26, No.2, pp. 196-205, 2022.
Data files:
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Last updated on May. 20, 2022