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Testing in general
Ineffable concepts in information retrieval
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analysis automatic indexing average behaviour boolean boolean logic Cleverdon compared comparison concepts concerned cost Cranfield CRTW CWRU Cyril Cleverdon database discussed document collection documents retrieved environment evaluation example experimental facetted classification factors GTWC index language index terms information need information retrieval system information retrieval tests Information Science information service INSPEC interaction investigation Journal of Documentation KWAC Latin square Library manual measure Medlars methodology methods natural language non-relevant number of relevant obtained operational systems output particular possible probability problem procedures profiles query question ranking ratio recall and precision recall-precision relevance assessments relevance judgements relevant documents Report requests retrieval effectiveness retrieval performance riJsbergen Salton sample search strategies search terms searchers simulation Smart Society for Information Sparck Jones specific statistical techniques test collections theory Uniterm variables weights Western Reserve University