Search (4 results, page 1 of 1)

  • × theme_ss:"Klassifikationssysteme im Online-Retrieval"
  • × type_ss:"a"
  • × year_i:[1980 TO 1990}
  1. Chan, L.M.: Library of Congress class numbers in online catalog searching (1989) 0.05 
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    Abstract
    In addition to using title keywords and subject headings for searching in the online catalog, the searcher may also use class numbers as access points. Library of Congress class or call numbers are particular effective in certain kinds of specific-item subject searching and serve as supplements to keywords and descriptors, improving precision and recall. Class number searching in the database can produce unique results because these numbers collect citations in ways that differ from those of keywords and descriptors
  2. Hill, J.S.: Online classification number access : some practical considerations (1984) 0.02 
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    Source
    Journal of academic librarianship. 10(1984), S.17-22
  3. Gödert, W.: Klassifikationssysteme und Online-Katalog (1987) 0.01 
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    Abstract
    Free text searching with keywords in a complete data store is not necessarily the best automatic retrieval method. There must be a proper classification of documents and concepts and the use of a proper classification system avoids problems of terminological deficiency. The dialogue search form makes the on-line catalogue a new information medium. A bibliographic unit must be created with as many search access points as possible, using verbal and classificatory search elements. Verbal search categories must include free text elements for individual search access requirements and a controlled vocabulary with syntactic connections. Classified data should consist of a universal classification system with clear structural notation for access and surface searching, together with several specialist subject classifications for differentiated documentation and retrieval. The universal classification needs no detailed subdivision: it serves mainly as a guide and entry to the detailed sub-systems
  4. Dack, D.: Australian attends conference on Dewey (1989) 0.01 
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    Date
    8.11.1995 11:52:22

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