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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Active Learning Strategies for Multi-Label Text Classification
verfasst von : Andrea Esuli, Fabrizio Sebastiani
Erschienen in: Advances in Information Retrieval
Verlag: Springer Berlin Heidelberg
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Active learning
refers to the task of devising a ranking function that, given a classifier trained from relatively few training examples, ranks a set of additional unlabeled examples in terms of how much further information they would carry, once manually labeled, for retraining a (hopefully) better classifier. Research on active learning in text classification has so far concentrated on single-label classification; active learning for multi-label classification, instead, has either been tackled in a simulated (and, we contend, non-realistic) way, or neglected
tout court
. In this paper we aim to fill this gap by examining a number of realistic strategies for tackling active learning for multi-label classification. Each such strategy consists of a rule for combining the outputs returned by the individual binary classifiers as a result of classifying a given unlabeled document. We present the results of extensive experiments in which we test these strategies on two standard text classification datasets.