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Analysis of Evolutionary Algorithms on Fitness Function with Time-linkage Property

by   Weijie Zheng, et al.

In real-world applications, many optimization problems have the time-linkage property, that is, the objective function value relies on the current solution as well as the historical solutions. Although the rigorous theoretical analysis on evolutionary algorithms has rapidly developed in recent two decades, it remains an open problem to theoretically understand the behaviors of evolutionary algorithms on time-linkage problems. This paper starts the first step to rigorously analyze evolutionary algorithms for time-linkage functions. Based on the basic OneMax function, we propose a time-linkage function where the first bit value of the last time step is integrated but has a different preference from the current first bit. We prove that with probability 1-o(1), randomized local search and cannot find the optimum, and with probability 1-o(1), (μ+1) EA is able to reach the optimum.


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