Search (5 results, page 1 of 1)

  • × theme_ss:"Referieren"
  • × year_i:[1980 TO 1990}
  1. Fidel, R.: Writing abstracts for free-text searching (1986) 0.00
    0.0029650682 = product of:
      0.041510954 = sum of:
        0.041510954 = weight(_text_:retrieval in 684) [ClassicSimilarity], result of:
          0.041510954 = score(doc=684,freq=6.0), product of:
            0.08963835 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.029633347 = queryNorm
            0.46309367 = fieldWeight in 684, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=684)
      0.071428575 = coord(1/14)
    
    Abstract
    A survey of abstracting policies by producers of bibliographical databases examined abstracting guidelines which aim to enhance free- text retrieval. Of the 123 database policies examined, fifty-seven (46 per cent) included such instructions. Editors consider contents of abstracts and their language as a primary factor in retrieval enhancement. Most recommend that once abstractors decide which concepts to include in abstracts and in which form to represent them, these terms should be co-ordinated with index terms assigned from a controlled vocabulary. Guidelines about the type of abstracts, i.e., informative or indicative, and about their length are not affected by the capability of free-text retrieval
  2. Wellisch, H.H.: Indexing and abstracting 1977-1981 : an international bibliography (1984) 0.00
    8.64828E-4 = product of:
      0.012107591 = sum of:
        0.012107591 = weight(_text_:information in 1453) [ClassicSimilarity], result of:
          0.012107591 = score(doc=1453,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.23274569 = fieldWeight in 1453, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.09375 = fieldNorm(doc=1453)
      0.071428575 = coord(1/14)
    
    Imprint
    Santa Barbara : ABC-Clio Information Services
  3. Abstracting and indexing services in perspective : Miles Conrad memorial lectures 1969-1983. Commemorating the twenty-fifth anniversary of the National Federation of Abstracting and Information Services (1983) 0.00
    8.153676E-4 = product of:
      0.011415146 = sum of:
        0.011415146 = weight(_text_:information in 689) [ClassicSimilarity], result of:
          0.011415146 = score(doc=689,freq=4.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.21943474 = fieldWeight in 689, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=689)
      0.071428575 = coord(1/14)
    
    Imprint
    Arlington : Information Resources Pr.
  4. Palais, E.S.: Abstracting for reference librarians (1988) 0.00
    7.6474476E-4 = product of:
      0.010706427 = sum of:
        0.010706427 = product of:
          0.032119278 = sum of:
            0.032119278 = weight(_text_:22 in 2832) [ClassicSimilarity], result of:
              0.032119278 = score(doc=2832,freq=2.0), product of:
                0.103770934 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.029633347 = queryNorm
                0.30952093 = fieldWeight in 2832, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=2832)
          0.33333334 = coord(1/3)
      0.071428575 = coord(1/14)
    
    Source
    Reference librarian. 1988, no.22, S.297-308
  5. Endres-Niggemeyer, B.: Content analysis : a special case of text compression (1989) 0.00
    7.2068995E-4 = product of:
      0.010089659 = sum of:
        0.010089659 = weight(_text_:information in 3549) [ClassicSimilarity], result of:
          0.010089659 = score(doc=3549,freq=2.0), product of:
            0.052020688 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.029633347 = queryNorm
            0.19395474 = fieldWeight in 3549, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.078125 = fieldNorm(doc=3549)
      0.071428575 = coord(1/14)
    
    Source
    Information, knowledge, evolution. Proceedings of the 44th FID Congress, Helsinki, 28.8.-1.9.1988. Ed. by S. Koshiala and R. Launo