Shaping the error-reject curve of error correcting output coding systems

  • Authors:
  • Paolo Simeone;Claudio Marrocco;Francesco Tortorella

  • Affiliations:
  • DAEIMI, Università degli Studi di Cassino, Cassino, Italy;DAEIMI, Università degli Studi di Cassino, Cassino, Italy;DAEIMI, Università degli Studi di Cassino, Cassino, Italy

  • Venue:
  • ICIAP'11 Proceedings of the 16th international conference on Image analysis and processing: Part I
  • Year:
  • 2011

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Abstract

A common approach in many classification tasks consists in reducing the costs by turning as many errors as possible into rejects. This can be accomplished by introducing a reject rule which, working on the reliability of the decision, aims at increasing the performance of the classification system. When facing multiclass classification, Error Correcting Output Coding is a diffused and successful technique to implement a system by decomposing the original problem into a set of two class problems. The novelty in this paper is to consider different levels where the reject can be applied in the ECOC systems. A study for the behavior of such rules in terms of Error-Reject curves is also proposed and tested on several benchmark datasets.