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Limited By:	Author = Poli, Riccardo;

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Neutrality in evolutionary algorithms... what do we know? (2012)

Galván-López, Edgar; Poli, Riccardo; Kattan, Ahmed; O'Neill, Michael; Brabazon, An...

Neutrality in evolutionary algorithms... what do we know? (2012)

Galván-López, Edgar; Poli, Riccardo; Kattan, Ahmed; O'Neill, Michael; Brabazon, Anthony

Abstract:

Over the last years, the effects of neutrality have attracted the attention of many researchers in the Evolutionary Algorithms (EAs) community. A mutation from one gene to another is considered as neutral if this modification does not affect the phenotype. This article provides a general overview on the work carried out on neutrality in EAs. Using as a framework the origin of neutrality and its study in different paradigms of EAs (e.g., Genetic Algorithms, Genetic Programming), we discuss the most significant works and findings on this topic. This work points towards open issues, which the community needs to address.
Science Foundation Ireland
ti, ke, ab, li - TS 02.12 12 month EMBARGO

http://hdl.handle.net/10197/3532

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Neutrality in evolutionary algorithms... What do we know? (2011)

Galván López, Edgar; Poli, Riccardo; Kattan, Ahmed; O'Neill, Michael; Brabazon, An...

Neutrality in evolutionary algorithms... What do we know? (2011)

Galván López, Edgar; Poli, Riccardo; Kattan, Ahmed; O'Neill, Michael; Brabazon, Anthony

Abstract:

http://mural.maynoothuniversity.ie/12337/

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The Effects of Constant and Bit-Wise Neutrality on Problem Hardness, Fitness Distance Correlation and Phenotypic Mutation Rates (2012)

Poli, Riccardo; Galván López, Edgar

The Effects of Constant and Bit-Wise Neutrality on Problem Hardness, Fitness Distance Correlation and Phenotypic Mutation Rates (2012)

Poli, Riccardo; Galván López, Edgar

Abstract:

Kimura's neutral theory of evolution has inspired researchers from the evolutionary computation community to incorporate neutrality into evolutionary algorithms (EAs) in the hope that it can aid evolution. The effects of neutrality on evolutionary search have been considered in a number of studies, the results of which, however, have been highly contradictory. In this paper, we analyze the reasons for this and make an effort to shed some light on neutrality by addressing them. We consider two very simple forms of neutrality: constant neutrality-a neutral network of constant fitness, identically distributed in the whole search space-and bit-wise neutrality, where each phenotypic bit is obtained by transforming a group of genotypic bits via an encoding function. We study these forms of neutrality both theoretically and empirically (both for standard benchmark functions and a class of random MAX-SAT problems) to see how and why they influence the behavior and performance of a muta...

http://mural.maynoothuniversity.ie/12333/

Displaying Results 1 - 3 of 3 on page 1 of 1