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Defude, B.: Knowledge based systems versus thesaurus : an architecture problem about expert systems design (1984)
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Shaw, W.M.: Subject and citation indexing : pt.2: the optimal, cluster-based retrieval performance of composite representations (1991)
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Gopinath, M.A.; Das, P.: Classification and representation of knowledge (1997)
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Meadow, C.T.: Speculations on the measurement and use of user characteristics in information retrieval experimentation (1994)
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Castelli, V.: Progressive search and retrieval from image databases (2002)
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