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Cooper, W.S.: Indexing documents by Gedanken experimentation (1978)
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Cooper, W.S.: ¬A definition for relevance in information retrieval (1971)
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Cooper, W.S.: Is interindexer consistency a hobgoblin? (1969)
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Cooper, W.S.: Getting beyond Boole (1988)
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Cooper, W.S.: Expected search length : a single measure of retrieval effectiveness based on the weak ordering action of retrieval systems (1968)
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Cooper, W.S.: Some inconsistencies and misidentified modelling assumptions in probalistic information retrieval (1995)
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Cooper, W.S.: ¬The paradoxal role of unexamined documents in the evaluation of retrieval effectiveness (1976)
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Cooper, W.S.: Gedanken experimentation : an alternative to traditional system testing? (1981)
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Cooper, W.S.: ¬On selecting a measure of retrieval effectiveness, revisited (1973)
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