A Monte Carlo analysis of ensemble classification

  • Authors:
  • Roberto Esposito;Lorenza Saitta

  • Affiliations:
  • Università di Torino, Torino, Italy;Università di Torino, Alessandria, Italy

  • Venue:
  • ICML '04 Proceedings of the twenty-first international conference on Machine learning
  • Year:
  • 2004

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Abstract

In this paper we extend previous results providing a theoretical analysis of a new Monte Carlo ensemble classifier. The framework allows us to characterize the conditions under which the ensemble approach can be expected to outperform the single hypothesis classifier. Moreover, we provide a closed form expression for the distribution of the true ensemble accuracy, as well as of its mean and variance. We then exploit this result in order to analyze the expected error behavior in a particularly interesting case.