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Liu, R.-L.: Context recognition for hierarchical text classification (2009)
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Liu, R.-L.: ¬A passage extractor for classification of disease aspect information (2013)
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Automatic classification research at OCLC (2002)
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Yoon, Y.; Lee, C.; Lee, G.G.: ¬An effective procedure for constructing a hierarchical text classification system (2006)
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Yi, K.: Automatic text classification using library classification schemes : trends, issues and challenges (2007)
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