Constraint Classification: A New Approach to Multiclass Classification

  • Authors:
  • Sariel Har-Peled;Dan Roth;Dav Zimak

  • Affiliations:
  • -;-;-

  • Venue:
  • ALT '02 Proceedings of the 13th International Conference on Algorithmic Learning Theory
  • Year:
  • 2002

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Abstract

In this paper, we present a new view of multiclass classification and introduce the constraint classification problem, a generalization that captures many flavors of multiclass classification. We provide the first optimal, distribution independent bounds for many multiclass learning algorithms, including winner-take-all (WTA). Based on our view, we present a learning algorithm that learns via a single linear classifier in high dimension. In addition to the distribution independent bounds, we provide a simple margin-based analysis improving generalization bounds for linear multiclass support vector machines.