Model selection for support vector machines using ant colony optimization in an electronic nose application

Authors:
Javier Acevedo;Saturnino Maldonado;Sergio Lafuente;Hilario Gomez;Pedro Gil
Affiliations:
University of Alcala, Teoría de la señal, Alcala de Henares, Spain;University of Alcala, Teoría de la señal, Alcala de Henares, Spain;University of Alcala, Teoría de la señal, Alcala de Henares, Spain;University of Alcala, Teoría de la señal, Alcala de Henares, Spain;University of Alcala, Teoría de la señal, Alcala de Henares, Spain
Venue:
ANTS'06 Proceedings of the 5th international conference on Ant Colony Optimization and Swarm Intelligence
Year:
2006

Citing 6
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Abstract

Support vector machines, especially when using radial basis kernels, have given good results in the classification of different volatile compounds. We can achieve a feature extraction method adjusting the parameters of a modified radial basis kernel, giving more importance to those features that are important for classification proposes. However, the function that has to be minimized to find the best scaling factors is not derivable and has multiple local minima. In this work we propose to adapt the ideas of the ant colony optimization method to find an optimal value of the kernel parameters.