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Chen, H.; Dhar, V.: Cognitive process as a basis for intelligent retrieval system design (1991)
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- Information processing and management. 27(1991) no.5, S.405-432
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Chen, H.; Martinez, J.; Kirchhoff, A.; Ng, T.D.; Schatz, B.R.: Alleviating search uncertainty through concept associations : automatic indexing, co-occurence analysis, and parallel computing (1998)
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- Journal of the American Society for Information Science. 49(1998) no.3, S.206-216