Papers › An Overview and a Benchmark of Active Learning for Outlier Detection with One-Class Classifiers
An Overview and a Benchmark of Active Learning for Outlier Detection with One-Class Classifiers
Holger Trittenbach, Adrian Englhardt, Klemens Böhm
Active learning methods increase classification quality by means of user feedback. An important subcategory is active learning for outlier detection with one-class classifiers. While various methods in this category exist, selecting one for a given application scenario is difficult. This is because existing methods rely on different assumptions, have different objectives, and often are tailored to a specific use case. All this calls for a comprehensive comparison, the topic of this article. This article starts with a categorization of the various methods. We then propose ways to evaluate active learning results. Next, we run extensive experiments to compare existing methods, for a broad variety of scenarios. Based on our results, we formulate guidelines on how to select active learning methods for outlier detection with one-class classifiers.
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