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Ko, Y.; Park, J.; Seo, J.: Improving text categorization using the importance of sentences (2004)
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Ko, Y.; Seo, J.: Text classification from unlabeled documents with bootstrapping and feature projection techniques (2009)
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Kim, S.; Ko, Y.; Oard, D.W.: Combining lexical and statistical translation evidence for cross-language information retrieval (2015)
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Ko, Y.: ¬A new term-weighting scheme for text classification using the odds of positive and negative class probabilities (2015)
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Bae, K.; Ko, Y.: Improving question retrieval in community question answering service using dependency relations and question classification (2019)
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