CarpeDiem: an algorithm for the fast evaluation of SSL classifiers

  • Authors:
  • Roberto Esposito;Daniele P. Radicioni

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

  • Venue:
  • Proceedings of the 24th international conference on Machine learning
  • Year:
  • 2007

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Abstract

In this paper we present a novel algorithm, CarpeDiem. It significantly improves on the time complexity of Viterbi algorithm, preserving the optimality of the result. This fact has consequences on Machine Learning systems that use Viterbi algorithm during learning or classification. We show how the algorithm applies to the Supervised Sequential Learning task and, in particular, to the HMPerceptron algorithm. We illustrate CarpeDiem in full details, and provide experimental results that support the proposed approach.