Decision Region Connectivity Analysis: A Method for Analyzing High-Dimensional Classifiers

  • Authors:
  • Ofer Melnik

  • Affiliations:
  • DIMACS Center, Rutgers University, Piscataway, NJ 08854. melnik@cs.brandeis.edu

  • Venue:
  • Machine Learning
  • Year:
  • 2002

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Abstract

In this paper we present a method to extract qualitative information from any classification model that uses decision regions to generalize (e.g., feed-forward neural nets, SVMs, etc). The method's complexity is independent of the dimensionality of the input data or model, making it computationally feasible for the analysis of even very high-dimensional models. The qualitative information extracted by the method can be directly used to analyze the classification strategies employed by a model, and also to compare strategies across different model types.