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• W1661523325 abstract "Term weighting schemes often dominate the performance of many classifiers, such as kNN, centroid-based classifier and SVMs. The widely used term weighting scheme in text categorization, i.e., tf.idf, is originated from information retrieval (IR) field. The intuition behind idf for text categorization seems less reasonable than IR. In this paper, we introduce inverse category frequency (icf) into term weighting scheme and propose two novel approaches, i.e., tf.icf and icf-based supervised term weighting schemes. The tf.icf adopts icf to substitute idf factor and favors terms occurring in fewer categories, rather than fewer documents. And the icf-based approach combines icf and relevance frequency (rf) to weight terms in a supervised way. Our cross-classifier and cross-corpus experiments have shown that our proposed approaches are superior or comparable to six supervised term weighting schemes and three traditional schemes in terms of macro-F1 and micro-F1." @default.
• W1661523325 created "2016-06-24" @default.
• W1661523325 creator A5003759585 @default.
• W1661523325 creator A5006320644 @default.
• W1661523325 date "2013-03-01" @default.
• W1661523325 modified "2023-09-27" @default.
• W1661523325 title "Inverse-Category-Frequency Based Supervised Term Weighting Schemes for Text Categorization *" @default.
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• W1661523325 doi "https://doi.org/10.6688/jise.2013.29.2.2" @default.
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