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Feature Selection for Complex Patterns

  • Peter Schenkel
  • Wanqing Li
  • Wanquan Liu
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4093)

Abstract

Feature selection is an important data preprocessing step in data mining and pattern recognition. Many algorithms have been proposed in the past for simple patterns that can be characterised by a single feature vector. Unfortunately, these algorithms are hardly applicable to what are referred as complex patterns that have to be described by a finite set of feature vectors. This paper addresses the problem of feature selection for the complex patterns. First, we formulated the calculation of mutual information for complex patterns based on Gaussian mixture model. A hybrid feature selection algorithm is then proposed based on the formulated mutual information calculation (filter) and Baysian classification (wrapper). Experimental results on XM2VTS speaker recognition database have not only verified the performance of the proposed algorithm, but also demonstrated that traditional feature selection algorithms designed for simple patterns would perform poorly for complex patterns.

Keywords

Feature Vector Feature Selection Mutual Information Complex Pattern Gaussian Mixture Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Peter Schenkel
    • 1
  • Wanqing Li
    • 2
  • Wanquan Liu
    • 3
  1. 1.University of KarlsruheGermany
  2. 2.University of WollongongAustralia
  3. 3.Curtin University of TechnologyAustralia

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