Theoretical Foundations and Algorithms for Outlier Ensembles

  title={Theoretical Foundations and Algorithms for Outlier Ensembles},
  author={Charu C. Aggarwal and Saket Sathe},
  journal={SIGKDD Explorations},
Ensemble analysis has recently been studied in the context of the outlier detection problem. In this paper, we investigate the theoretical underpinnings of outlier ensemble analysis. In spite of the significant differences between the classification and the outlier analysis problems, we show that the theoretical underpinnings between the two problems are actually quite similar in terms of the bias-variance trade-off. We explain the existing algorithms within this traditional framework, and… CONTINUE READING
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