Evolving agent-based models using self-adaptive complexification

Authored by Wentong Cai, Michael Wagner, Michael H Lees, Heiko Aydt

Date Published: 2015

DOI: 10.1016/j.jocs.2015.03.005

Sponsors: Russian Scientific Foundation Singapore National Research Foundation

Platforms: MASON

Model Documentation: Other Narrative Flow charts

Model Code URLs: Model code not found

Abstract

This paper focuses on parameter search for multi-agent based models using evolutionary algorithms. Large numbers and variable dimensions of parameters require an optimization method which can efficiently handle a high dimensional search space. We are proposing the use of complexification as it emulates the natural way of evolution by starting with a small constrained search space and expanding it as the evolution progresses. To further improve performance we suggest and experiment with methods of self-adaptation to enable the algorithm to adjust its parameters individually to the problem at hand. We examined the effects of these methods on an EA by evolving parameters for two multi-agent based models. (C) 2015 Elsevier B.V. All rights reserved.
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