Analyzing the Runtime of the Gene-pool Optimal Mixing Evolutionary Algorithm (GOMEA) on the Concatenated Trap Function

• URL: http://arxiv.org/abs/2407.08335v1
• Date: Thu, 11 Jul 2024 09:37:21 GMT
• Title: Analyzing the Runtime of the Gene-pool Optimal Mixing Evolutionary Algorithm (GOMEA) on the Concatenated Trap Function
• Authors: Yukai Qiao, Marcus Gallagher,
• Abstract summary: GOMEA is an evolutionary algorithm that leverages linkage learning to efficiently exploit problem structure. We show that GOMEA can solve the problem in $O(m32k)$ with high probability, where $m$ is the number of subfunctions and $k$ is the subfunction length. This is a significant speedup compared to the (1+1) Evolutionary EA, which requires $O(ln(m)(mk)k)$ expected evaluations.
• Score: 2.038038953957366
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The Gene-pool Optimal Mixing Evolutionary Algorithm (GOMEA) is a state of the art evolutionary algorithm that leverages linkage learning to efficiently exploit problem structure. By identifying and preserving important building blocks during variation, GOMEA has shown promising performance on various optimization problems. In this paper, we provide the first runtime analysis of GOMEA on the concatenated trap function, a challenging benchmark problem that consists of multiple deceptive subfunctions. We derived an upper bound on the expected runtime of GOMEA with a truthful linkage model, showing that it can solve the problem in $O(m^{3}2^k)$ with high probability, where $m$ is the number of subfunctions and $k$ is the subfunction length. This is a significant speedup compared to the (1+1) EA, which requires $O(ln{(m)}(mk)^{k})$ expected evaluations.

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