Search (2 results, page 1 of 1)

  • × type_ss:"a"
  • × theme_ss:"Beziehungen verbale / systematische Erschließung"
  1. Aitchison, J.: ¬A classification as a source for a thesaurus : the bibliographic classification of H.E. Bliss as a source of thesaurus terms and structure (1986) 0.01 
    0.01220762 = product of:
  0.04883048 = sum of:
    0.04883048 = weight(_text_:social in 1569) [ClassicSimilarity], result of:
      0.04883048 = score(doc=1569,freq=2.0), product of:
        0.1847249 = queryWeight, product of:
          3.9875789 = idf(docFreq=2228, maxDocs=44218)
          0.046325076 = queryNorm
        0.26434162 = fieldWeight in 1569, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.9875789 = idf(docFreq=2228, maxDocs=44218)
          0.046875 = fieldNorm(doc=1569)
  0.25 = coord(1/4)
    Abstract
    The second edition of the Bibliographic Classidication of H.E. Bliss (BC2), being prepared under the editorship of Jack Mills, Vanda Broughton and others, is a rich source of structure and terminology for thesauri covering different subject fields. The new edition employs facet analysis and is thesaurus-compatible. A number of facet-based thesauri have drawn upon Bliss for terms and relationships. In two of these thesauri the Bliss Classification was the source of both systematic and alphabetical displays. The DHSS-DATA thesaurus, published by the United Kingdom Department of Health and Social Security, provides controlled terms and Bliss class numbers for indexing and searching the DHSS-DATA database. The ECOT thesaurus (Educational courses and occupations thesaurus) prepared for the Department of Education and Science, uses the software sedigned for the British Standards Institution ROOT thesaurus to genearte an alphabetical display from the systematic display derived from the Bliss schedules. Problems, benefits, and future prospects of Bliss-based thesaurus construction are discussed
  2. Francu, V.: ¬The impact of specificity on the retrieval power of a UDC-based multilingual thesaurus (2003) 0.01 
    0.011090445 = product of:
  0.04436178 = sum of:
    0.04436178 = product of:
      0.08872356 = sum of:
        0.08872356 = weight(_text_:aspects in 5518) [ClassicSimilarity], result of:
          0.08872356 = score(doc=5518,freq=4.0), product of:
            0.20938325 = queryWeight, product of:
              4.5198684 = idf(docFreq=1308, maxDocs=44218)
              0.046325076 = queryNorm
            0.42373765 = fieldWeight in 5518, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.5198684 = idf(docFreq=1308, maxDocs=44218)
              0.046875 = fieldNorm(doc=5518)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Abstract
    The article describes the research done over a bibliographic database in order to show the impact the specificity of the knowledge organising tools may have on information retrieval (IR). For this purpose two multilingual Universal Decimal Classification (UDC) based thesauri having different degrees of specificity are considered. Issues of harmonising a classificatory structure with a thesaurus structure are introduced, and significant aspects of information retrieval in a multilingual environment are examined in an extensive manner. Aspects of complementarity are discussed with particular emphasis on the real impact produced on IR by alternative search facilities. Finally, a number of conclusions are formulated as they arise from the study.

Authors

Years