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Croft, W.B.: Clustering large files of documents using the single link method (1977)
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Croft, W.B.: Knowledge-based and statistical approaches to text retrieval (1993)
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Croft, W.B.: Hypertext and information retrieval : what are the fundamental concepts? (1990)
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Croft, W.B.: What do people want from information retrieval? : the top 10 research issues for companies that use and sell IR systems (1995)
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Kang, I.-S.; Na, S.-H.; Kim, J.; Lee, J.-H.: Cluster-based patent retrieval (2007)
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Na, S.-H.; Kang, I.-S.; Roh, J.-E.; Lee, J.-H.: ¬An empirical study of query expansion and cluster-based retrieval in language modeling approach (2007)
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Wolfram, D.; Zhang, J.: ¬An investigation of the influence of indexing exhaustivity and term distributions on a document space (2002)
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Fujita, S.: Technology survey and invalidity search : a comparative study of different tasks for Japanese patent document retrieval (2007)
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