Boosting Classifiers Built from Different Subsets of Features

  • Authors:
  • ean-Christophe Janodet;Marc Sebban;Henri-Maxime Suchier

  • Affiliations:
  • Université de Lyon, F-69003, Lyon, France Université de Saint-Etienne, UMR-CNRS 5516, Lab. Hubert Curien 18 rue du Professeur Benoit Lauras, F-42000, St-Etienne, France. E-mail: {janodet ...;Université de Lyon, F-69003, Lyon, France Université de Saint-Etienne, UMR-CNRS 5516, Lab. Hubert Curien 18 rue du Professeur Benoit Lauras, F-42000, St-Etienne, France. E-mail: {janodet ...;Artefacto, 11 rue Meynier, F-35700 Rennes, France. E-mail: hm.suchier@artefacto.fr

  • Venue:
  • Fundamenta Informaticae
  • Year:
  • 2009

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Abstract

We focus on the adaptation of boosting to representation spaces composed of different subsets of features. Rather than imposing a single weak learner to handle data that could come from different sources (e.g., images and texts and sounds), we suggest the decomposition of the learning task into several dependent sub-problems of boosting, treated by different weak learners, that will optimally collaborate during the weight update stage. To achieve this task, we introduce a new weighting scheme for which we provide theoretical results. Experiments are carried out and show that ourmethod works significantly better than any combination of independent boosting procedures.