Search (3 results, page 1 of 1)

  • × theme_ss:"Theorie verbaler Dokumentationssprachen"
  • × theme_ss:"Verbale Doksprachen im Online-Retrieval"
  • × year_i:[1990 TO 2000}
  1. Principles underlying subject heading languages (SHLs) (1999) 0.18
    0.17509836 = product of:
      0.40407312 = sum of:
        0.06582528 = weight(_text_:allgemeines in 1659) [ClassicSimilarity], result of:
          0.06582528 = score(doc=1659,freq=4.0), product of:
            0.12306474 = queryWeight, product of:
              5.705423 = idf(docFreq=399, maxDocs=44218)
              0.021569785 = queryNorm
            0.5348834 = fieldWeight in 1659, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.705423 = idf(docFreq=399, maxDocs=44218)
              0.046875 = fieldNorm(doc=1659)
        0.04371247 = weight(_text_:buch in 1659) [ClassicSimilarity], result of:
          0.04371247 = score(doc=1659,freq=4.0), product of:
            0.10028592 = queryWeight, product of:
              4.64937 = idf(docFreq=1149, maxDocs=44218)
              0.021569785 = queryNorm
            0.43587846 = fieldWeight in 1659, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.64937 = idf(docFreq=1149, maxDocs=44218)
              0.046875 = fieldNorm(doc=1659)
        0.009933459 = weight(_text_:und in 1659) [ClassicSimilarity], result of:
          0.009933459 = score(doc=1659,freq=4.0), product of:
            0.04780656 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.021569785 = queryNorm
            0.20778441 = fieldWeight in 1659, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.046875 = fieldNorm(doc=1659)
        0.028413082 = product of:
          0.056826163 = sum of:
            0.056826163 = weight(_text_:bibliothekswesen in 1659) [ClassicSimilarity], result of:
              0.056826163 = score(doc=1659,freq=8.0), product of:
                0.09615103 = queryWeight, product of:
                  4.457672 = idf(docFreq=1392, maxDocs=44218)
                  0.021569785 = queryNorm
                0.5910094 = fieldWeight in 1659, product of:
                  2.828427 = tf(freq=8.0), with freq of:
                    8.0 = termFreq=8.0
                  4.457672 = idf(docFreq=1392, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1659)
          0.5 = coord(1/2)
        0.04103456 = weight(_text_:informationswissenschaft in 1659) [ClassicSimilarity], result of:
          0.04103456 = score(doc=1659,freq=4.0), product of:
            0.09716552 = queryWeight, product of:
              4.504705 = idf(docFreq=1328, maxDocs=44218)
              0.021569785 = queryNorm
            0.42231607 = fieldWeight in 1659, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.504705 = idf(docFreq=1328, maxDocs=44218)
              0.046875 = fieldNorm(doc=1659)
        0.056826163 = weight(_text_:bibliothekswesen in 1659) [ClassicSimilarity], result of:
          0.056826163 = score(doc=1659,freq=8.0), product of:
            0.09615103 = queryWeight, product of:
              4.457672 = idf(docFreq=1392, maxDocs=44218)
              0.021569785 = queryNorm
            0.5910094 = fieldWeight in 1659, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              4.457672 = idf(docFreq=1392, maxDocs=44218)
              0.046875 = fieldNorm(doc=1659)
        0.056826163 = weight(_text_:bibliothekswesen in 1659) [ClassicSimilarity], result of:
          0.056826163 = score(doc=1659,freq=8.0), product of:
            0.09615103 = queryWeight, product of:
              4.457672 = idf(docFreq=1392, maxDocs=44218)
              0.021569785 = queryNorm
            0.5910094 = fieldWeight in 1659, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              4.457672 = idf(docFreq=1392, maxDocs=44218)
              0.046875 = fieldNorm(doc=1659)
        0.003741601 = weight(_text_:in in 1659) [ClassicSimilarity], result of:
          0.003741601 = score(doc=1659,freq=4.0), product of:
            0.029340398 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.021569785 = queryNorm
            0.12752387 = fieldWeight in 1659, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.046875 = fieldNorm(doc=1659)
        0.009933459 = weight(_text_:und in 1659) [ClassicSimilarity], result of:
          0.009933459 = score(doc=1659,freq=4.0), product of:
            0.04780656 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.021569785 = queryNorm
            0.20778441 = fieldWeight in 1659, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.046875 = fieldNorm(doc=1659)
        0.028712219 = weight(_text_:bibliotheken in 1659) [ClassicSimilarity], result of:
          0.028712219 = score(doc=1659,freq=4.0), product of:
            0.08127756 = queryWeight, product of:
              3.768121 = idf(docFreq=2775, maxDocs=44218)
              0.021569785 = queryNorm
            0.35326135 = fieldWeight in 1659, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.768121 = idf(docFreq=2775, maxDocs=44218)
              0.046875 = fieldNorm(doc=1659)
        0.028712219 = weight(_text_:bibliotheken in 1659) [ClassicSimilarity], result of:
          0.028712219 = score(doc=1659,freq=4.0), product of:
            0.08127756 = queryWeight, product of:
              3.768121 = idf(docFreq=2775, maxDocs=44218)
              0.021569785 = queryNorm
            0.35326135 = fieldWeight in 1659, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.768121 = idf(docFreq=2775, maxDocs=44218)
              0.046875 = fieldNorm(doc=1659)
        0.028712219 = weight(_text_:bibliotheken in 1659) [ClassicSimilarity], result of:
          0.028712219 = score(doc=1659,freq=4.0), product of:
            0.08127756 = queryWeight, product of:
              3.768121 = idf(docFreq=2775, maxDocs=44218)
              0.021569785 = queryNorm
            0.35326135 = fieldWeight in 1659, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.768121 = idf(docFreq=2775, maxDocs=44218)
              0.046875 = fieldNorm(doc=1659)
        0.0016902501 = weight(_text_:s in 1659) [ClassicSimilarity], result of:
          0.0016902501 = score(doc=1659,freq=2.0), product of:
            0.023451481 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.021569785 = queryNorm
            0.072074346 = fieldWeight in 1659, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.046875 = fieldNorm(doc=1659)
      0.43333334 = coord(13/30)
    
    Classification
    AN 75400 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Bibliothekswesen / Sacherschließung in Bibliotheken / Schlagwortregeln, Schlagwortverzeichnis
    RVK
    AN 75400 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Bibliothekswesen / Sacherschließung in Bibliotheken / Schlagwortregeln, Schlagwortverzeichnis
    Type
    s
  2. Takeda, N.: Problems in hierarchical structures in thesauri : their influences on the results of information retrieval (1994) 0.00
    7.2630163E-4 = product of:
      0.010894524 = sum of:
        0.008640857 = weight(_text_:in in 2642) [ClassicSimilarity], result of:
          0.008640857 = score(doc=2642,freq=12.0), product of:
            0.029340398 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.021569785 = queryNorm
            0.29450375 = fieldWeight in 2642, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.0625 = fieldNorm(doc=2642)
        0.002253667 = weight(_text_:s in 2642) [ClassicSimilarity], result of:
          0.002253667 = score(doc=2642,freq=2.0), product of:
            0.023451481 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.021569785 = queryNorm
            0.09609913 = fieldWeight in 2642, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=2642)
      0.06666667 = coord(2/30)
    
    Abstract
    In online retrieval search results do not always match the intent in spite of using correct keywords (descriptors). One of the causes of this problem is found in the hierarchical structures of the thesaurus, which often contains relations between broader and narrower concepts, the opposite of which is not necessarily true. Some examples are described from 2 thesauri, MeSH and JICST. In these cases searchers need to make an effort to increase precision
    Source
    Online Kensaku. 15(1994) no.4, S.183-186
  3. Lopes, M.I.: Principles underlying subject heading languages : an international approach (1996) 0.00
    5.43019E-4 = product of:
      0.008145284 = sum of:
        0.0061733257 = weight(_text_:in in 5608) [ClassicSimilarity], result of:
          0.0061733257 = score(doc=5608,freq=8.0), product of:
            0.029340398 = queryWeight, product of:
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.021569785 = queryNorm
            0.21040362 = fieldWeight in 5608, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              1.3602545 = idf(docFreq=30841, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5608)
        0.0019719584 = weight(_text_:s in 5608) [ClassicSimilarity], result of:
          0.0019719584 = score(doc=5608,freq=2.0), product of:
            0.023451481 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.021569785 = queryNorm
            0.08408674 = fieldWeight in 5608, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5608)
      0.06666667 = coord(2/30)
    
    Abstract
    Discusses the problems in establishing commonly accepted principles for subject retrieval between different bibliographic systems. The Working Group on Principles Underlying Subject Heading Languages was established to devise general principles for any subject retrieval system and to review existing real systems in the light of such principles and compare them in order to evaluate the extent of their coverage and their application in current practices. Provides a background and history of the Working Group. Discusses the principles underlying subject headings and their purposes and the state of the work and major findings
    Source
    International cataloguing and bibliographic control. 25(1995) no.1, S.10-12