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Selecting features in neurofuzzy modelling by multi-objective genetic algorithms

By Christos Emmanouilidis, Andrew Hunter, John MacIntyre and Chris Cox


ABSTRACT\ud Empirical modelling in high dimensional spaces is usually preceded by a feature selection stage. Irrelevant or noisy features unnecessarily increase the complexity of the\ud problem and can degrade modelling performance. Here, multiobjective genetic algorithms, are proposed, as effective means of evolving a diverse population of alternative feature sets with various accuracy/complexity\ud trade-offs. They are shown to be particularly successful in neurofuzzy modelling, in conjunction with a method for performing fast fitness evaluation. The major contributions of this paper are in the use of a specific type of\ud multiobjective genetic algorithm, based on the concept of dominance, for feature selection; and the combination of fast fitness evaluation of neurofuzzy models with a genetic algorithm. The effectiveness of the proposed approach is\ud demonstrated on two high dimensional regression problems

Topics: G760 Machine Learning
Year: 1999
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