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A data-driven mixture kernel for count data classification using support vector machines

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1 Author(s)
Nizar Bouguila ; Concordia Institute for Information Systems Engineering, Concordia University, Montreal, Qc, Canada H3G 1T7

In this paper, we investigate the problem of training support vector machines (SVMs) on count data. Multinomial generalized Dirichlet mixture models allow us to model efficiently count data. On the other hand, SVMs permit good discrimination. We propose, then, a hybrid model that appropriately combines their advantages. Finite mixture models are introduced, as an SVM kernel, to incorporate prior knowledge about the nature of data involved in the problem at hand. In the context of this model, we compare different kernels. Through an application involving image database categorization, we find that our data-driven kernel performs better.

Published in:

2008 IEEE Workshop on Machine Learning for Signal Processing

Date of Conference:

16-19 Oct. 2008