Information-Theoretic Measures for Meta-learning

  • Authors:
  • Saddys Segrera;Joel Pinho;María N. Moreno

  • Affiliations:
  • Department of Computer Science and Automatics, University of Salamanca, Salamanca, Spain 37008;Department of Computer Science and Automatics, University of Salamanca, Salamanca, Spain 37008;Department of Computer Science and Automatics, University of Salamanca, Salamanca, Spain 37008

  • Venue:
  • HAIS '08 Proceedings of the 3rd international workshop on Hybrid Artificial Intelligence Systems
  • Year:
  • 2008

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Abstract

Information-theoretic measures are suitable to characterize datasets with discrete attributes (or continuous which can be transformed). They can find information that can be decisive in order to analyze the behavior of different learning algorithms with specific datasets. The objective of the work presented in this paper is to study by means of three similar datasets from UCI Repository Machine Learning, the possible reasons for which breast-cancer-wisconsin dataset, in comparison with other 20 datasets, showed in a previous research that Stacking by Meta-Decision Trees (MDT) was significant better than all other multiclassifier models, including Stacking by Multi-Response Linear Regression (MLR). In our experiments the proportion of missing values, among other significant changes in different measure values, provided evidences about the possible origin of the different behaviors presented by these multiclassifier schemes depending on data characteristics.