Language and Representation in Information Retrieval

activities analysis assigned brute facts Chapter contents/signifieds data base definition describe DESCRIPTORS discussion document collection document descriptions document representation document retrieval systems estimate evaluation exhaustive searches explanation expression feedback felicity conditions formal query full-text retrieval system Genetic Algorithm illocutionary acts important index terms individual information retrieval systems inquirer's institutional facts kind Kuhn language games large systems lawyers linguistic logical look Ludwig Wittgenstein Maron meaning mentalistic natural language non-relevant particular performance Philosophical Investigations philosophy of language phrases possible pragmatic Precision problem procedure puzzles question Recall relevant documents request terms retrieval effectiveness retrieved documents retrieved set rules sample scientific search queries search terms semantic semiosis Semiotics set of documents signified simple full-text retrieval situation specific speech acts structure subject descriptions techniques term usage theory thesaurus Thomas Kuhn typical understand unretrieved wants Wittgenstein words Zipf Zipfian distribution