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The cognitive view and information
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actual user analysis applied behaviour Belkin Bookhouse Boolean Boolean logic Chapter classification clustering cognitive science cognitive structures cognitive view cognitive viewpoint cognitivism communication context controlled vocabulary Dark Matter database demonstrate discussed document domain empirical environment Euromath evaluation exact match example experiments faceted classification feedback Figure formal framework goals hermeneutic human intermediary implies index terms indexing theories individual information concept information need information processing information retrieval information science information space information systems Ingwersen interaction intermediary design intermediary functions intermediary mechanism investigations knowledge representation knowledge structures librarians maps Mark Pejtersen means mental methods mode Monstrat model potential information pre-search problem space query recipient reference relation relevant Request Model Rijsbergen role searcher semantic values situation Sparck Jones specific studies sub-functions System Model task modelling tasks theory thesaurus transformation types uncertainty underlying user model building user-oriented user's vector space model Wersig