Towards Information Retrieval

activities alphabet applied automatic average basic binary Boolean algebra clerical operations clerical systems coefficient collection communication communication theory complication computing context corresponding cost decimal demands devices digits discrimination display distinct documentary documents equivalent example Fairthorne given gostak graphical human includes inclusive disjunction indexing information retrieval information theory inscriptions instance integers interpretation irrelevant lattice letters librarian library classification linguistic logical product logical sum machine manipulation marks marshalling matching mathematical means measure meta-texts methods Ministry of Supply needed notation objects observer papers partial fraction particular patterns physical possible problem properties punched cards punched-card radix references relations relevant representation represented retrieval system Royal Aircraft Establishment rules scanning script selection semantic sense sequence serial numbers set of items signals simple specification structure superimposed coding symbols symmetric difference synonyms syntax tallies texts textual things tion topics Uniterm vocabulary words Zatocoding Zator