Modeling Skewed Class Distributions by Reshaping the Concept Space

Authors

  • Kyle Feuz Weber State University
  • Diane Cook Washington State University

DOI:

https://doi.org/10.1609/aaai.v31i1.10903

Keywords:

Supervised Machine Learning, Class Imbalance, Clustering, Intra-Class Clustering

Abstract

We introduce an approach to learning from imbalanced class distributions that does not change the underlying data distribution. The ICC algorithm decomposes majority classes into smaller sub-classes that create a more balanced class distribution. In this paper, we explain how ICC can not only addressthe class imbalance problem but may also increase the expressive power of the hypothesis space. We validate ICC and analyze alternative decomposition methods on well-known machine learning datasets as well as new problems in pervasive computing. Our results indicate that ICC performs as well or better than existing approaches to handling class imbalance.

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Published

2017-02-13

How to Cite

Feuz, K., & Cook, D. (2017). Modeling Skewed Class Distributions by Reshaping the Concept Space. Proceedings of the AAAI Conference on Artificial Intelligence, 31(1). https://doi.org/10.1609/aaai.v31i1.10903