The effect of class imbalance on case selection for case-based classifiers, with emphasis on computer-aided diagnosis systems
Publication
, Journal Article
Malof, JM; Mazurowski, MA; Tourassi, GD
Published in: Proceedings of the International Joint Conference on Neural Networks
November 18, 2009
In this paper the effect of class imbalance in the case base of a case-based classifier is investigated as it pertains to case base reduction and the resulting classifier performance. A k-nearest neighbor algorithm is used as a classifier and the Random Mutation Hill Climbing (RMHC) algorithm is used for case base reduction. The effects at various levels of positive class prevalence are tested in a binary classification problem. The results indicate that class imbalance is detrimental to both case base reduction and classifier performance. Selection with RMHC generally improves the classification performance regardless of the case base prevalence. ©2009 IEEE.
Duke Scholars
Published In
Proceedings of the International Joint Conference on Neural Networks
DOI
Publication Date
November 18, 2009
Start / End Page
1975 / 1980
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Malof, J. M., Mazurowski, M. A., & Tourassi, G. D. (2009). The effect of class imbalance on case selection for case-based classifiers, with emphasis on computer-aided diagnosis systems. Proceedings of the International Joint Conference on Neural Networks, 1975–1980. https://doi.org/10.1109/IJCNN.2009.5178759
Malof, J. M., M. A. Mazurowski, and G. D. Tourassi. “The effect of class imbalance on case selection for case-based classifiers, with emphasis on computer-aided diagnosis systems.” Proceedings of the International Joint Conference on Neural Networks, November 18, 2009, 1975–80. https://doi.org/10.1109/IJCNN.2009.5178759.
Malof JM, Mazurowski MA, Tourassi GD. The effect of class imbalance on case selection for case-based classifiers, with emphasis on computer-aided diagnosis systems. Proceedings of the International Joint Conference on Neural Networks. 2009 Nov 18;1975–80.
Malof, J. M., et al. “The effect of class imbalance on case selection for case-based classifiers, with emphasis on computer-aided diagnosis systems.” Proceedings of the International Joint Conference on Neural Networks, Nov. 2009, pp. 1975–80. Scopus, doi:10.1109/IJCNN.2009.5178759.
Malof JM, Mazurowski MA, Tourassi GD. The effect of class imbalance on case selection for case-based classifiers, with emphasis on computer-aided diagnosis systems. Proceedings of the International Joint Conference on Neural Networks. 2009 Nov 18;1975–1980.
Published In
Proceedings of the International Joint Conference on Neural Networks
DOI
Publication Date
November 18, 2009
Start / End Page
1975 / 1980