Genetic feature selection in a fuzzy rule-based classification system learning process for high-dimensional problems

TitleGenetic feature selection in a fuzzy rule-based classification system learning process for high-dimensional problems
Publication TypeJournal Article
Year of Publication2001
AuthorsCasillas, J, Cordón O., del Jesus M. J., and Herrera F.
JournalInformation Sciences
Volume136
Number1
Pagination135 - 157
ISSN0020-0255
Keywordsfeature selection, Fuzzy reasoning methods, fuzzy rule-based classification systems, Inductive learning
Abstract

The inductive learning of a fuzzy rule-based classification system (FRBCS) is made difficult by the presence of a large number of features that increases the dimensionality of the problem being solved. The difficulty comes from the exponential growth of the fuzzy rule search space with the increase in the number of features considered in the learning process. In this work, we present a genetic feature selection process that can be integrated in a multistage genetic learning method to obtain, in a more efficient way, FRBCSs composed of a set of comprehensible fuzzy rules with high-classification ability. The proposed process fixes, a priori, the number of selected features, and therefore, the size of the search space of candidate fuzzy rules. The experimentation carried out, using Sonar example base, shows a significant improvement on simplicity, precision and efficiency achieved by adding the proposed feature selection processes to the multistage genetic learning method or to other learning methods.

Notes

Recent Advances in Genetic Fuzzy Systems

URLhttp://www.sciencedirect.com/science/article/pii/S0020025501001475
DOI10.1016/S0020-0255(01)00147-5