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Convergence Analysis of Differential Evolution Variants on Unconstrained Global Optimization Functions

By G. Jeyakumar C. Shanmugavelayutham


In this paper, we present an empirical study on convergence nature of Differential Evolution (DE) variants to solve unconstrained global optimization problems. The aim is to identify the competitive nature of DE variants in solving the problem at their hand and compare. We have chosen fourteen benchmark functions grouped by feature: unimodal and separable, unimodal and nonseparable, multimodal and separable, and multimodal and nonseparable. Fourteen variants of DE were implemented and tested on fourteen benchmark problems for dimensions of 30. The competitiveness of the variants are identified by the Mean Objective Function value, they achieved in 100 runs. The convergence nature of the best and worst performing variants are analyzed by measuring their Convergence Speed (Cs) and Quality Measure (Qm).Comment: 12 Pages, 1 Figure, 10 Table

Topics: Computer Science - Neural and Evolutionary Computing
Year: 2011
DOI identifier: 10.5121/ijaia.2011.2209
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