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Wiley InterScience | ||||||||||||||
  Computational IntelligenceVolume 20 Issue 1, Pages 18 - 36 Published Online: 28 Jan 2004 © 2010 Wiley Periodicals Inc.
Abstract | References | Full Text: PDF (Size: 379K) | Related Articles | Citation Tracking  A Multiple Resampling Method for Learning from Imbalanced Data Sets Copyright 2004 Blackwell Publishing, Inc. KEYWORDS inductive learning • decision trees • class imbalance problem • multiple resampling • text classification ABSTRACTResampling methods are commonly used for dealing with the class-imbalance problem. Their advantage over other methods is that they are external and thus, easily transportable. Although such approaches can be very simple to implement, tuning them most effectively is not an easy task. In particular, it is unclear whether oversampling is more effective than undersampling and which oversampling or undersampling rate should be used. This paper presents an experimental study of these questions and concludes that combining different expressions of the resampling approach is an effective solution to the tuning problem. The proposed combination scheme is evaluated on imbalanced subsets of the Reuters-21578 text collection and is shown to be quite effective for these problems. | 
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