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In this paper we present an empirical, comparativeperformance, analysis of fourteen Differential Evolution(DE) variants on different classes of unconstrained globaloptimization benchmark problems. This analysis has beenundertaken, with an objective, to compare and to identifycompetitive DE variants which perform reasonably well onproblems with different features. Towards this, fourteenvariants of DE are benchmarked on 14 high dimensionalunconstrained test functions grouped by their modality anddecomposability viz. unimodal separable, unimodalnonseparable, multimodal separable and multimodalnonseparable. The analysis identifies the overall competitivevariants as well as the feature based performances of all thevariants.
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