PASCAL - Pattern Analysis, Statistical Modelling and Computational Learning

Real Adaboost Ensembles with Emphasized Subsampling
Sergio Muñoz-Romero, Vanessa Gómez-Verdejo and Jerónimo Arenas-Garcia
In: IWANN 2009(2009).


Multi-Net systems in general, and the Real Adaboost algorithm in particular, offer a very interesting way of designing very powerful classifiers. However, one inconvenient of this schemes is the large computational burden required for their construction. In this paper, we propose a new Boosting scheme which incorporates subsampling mechanisms to speed up the training of base learners and, therefore, the setup of the ensemble network. Furthermore, subsampling the training data provides additional diversity among the constituent learners, according to the some principles exploited by Bagging approaches. Experimental results show that our method is in fact able to improve both Boosting and Bagging schemes in terms of recognition rates, while allowing significant training time reductions.

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EPrint Type:Conference or Workshop Item (Paper)
Project Keyword:Project Keyword UNSPECIFIED
Subjects:Theory & Algorithms
ID Code:6693
Deposited By:Jerónimo Arenas-Garcia
Deposited On:08 March 2010