Computational steering of a multi-objective evolutionary algorithm for engineering design

Authors:
Alex Shenfield;Peter J. Fleming;Muhammad Alkarouri
Affiliations:
Department of Automatic Control and Systems Engineering, University of Sheffield, Sheffield S1 3JD, UK;Department of Automatic Control and Systems Engineering, University of Sheffield, Sheffield S1 3JD, UK;Department of Automatic Control and Systems Engineering, University of Sheffield, Sheffield S1 3JD, UK
Venue:
Engineering Applications of Artificial Intelligence
Year:
2007

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Abstract

The execution process of an evolutionary algorithm typically involves some trial and error. This is due to the difficulty in setting the initial parameters of the algorithm-especially when little is known about the problem domain. This problem is magnified when applied to many-objective optimisation, as care is needed to ensure that the final population of candidate solutions is representative of the trade-off surface. We propose a computational steering system that allows the engineer to interact with the optimisation routine during execution. This interaction can be as simple as monitoring the values of some parameters during the execution process, or could involve altering those parameters to influence the quality of the solutions produced by the optimisation process. The implementation of this steering system should provide the ability to tailor the client to the hardware available, for example providing a lightweight steering and visualisation client for use on a PDA.