Support vector machines for interval discriminant analysis

  • Authors:
  • C. Angulo;D. Anguita;L. Gonzalez-Abril;J. A. Ortega

  • Affiliations:
  • GREC-Knowledge Engineering Research Group, Technical University of Catalonia, 08800 Vilanova i la Geltrú, Spain;DIBE-Department of Biophysical and Electronic Engineering, University of Genoa, 16145 Genoa, Italy;COSDE-Department of Applied Economics I, University of Seville, 41018 Seville, Spain;Computer Engineering Department, University of Seville, 41018 Seville, Spain

  • Venue:
  • Neurocomputing
  • Year:
  • 2008

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Abstract

The use of data represented by intervals can be caused by imprecision in the input information, incompleteness in patterns, discretization procedures, prior knowledge insertion or speed-up learning. All the existing support vector machine (SVM) approaches working on interval data use local kernels based on a certain distance between intervals, either by combining the interval distance with a kernel or by explicitly defining an interval kernel. This article introduces a new procedure for the linearly separable case, derived from convex optimization theory, inserting information directly into the standard SVM in the form of intervals, without taking any particular distance into consideration.