Search (2 results, page 1 of 1)

  • × theme_ss:"Referieren"
  • × year_i:[1980 TO 1990}
  1. Fidel, R.: Writing abstracts for free-text searching (1986) 0.03
    0.027893053 = product of:
      0.055786107 = sum of:
        0.02379641 = weight(_text_:to in 684) [ClassicSimilarity], result of:
          0.02379641 = score(doc=684,freq=6.0), product of:
            0.08549677 = queryWeight, product of:
              1.818051 = idf(docFreq=19512, maxDocs=44218)
              0.04702661 = queryNorm
            0.2783311 = fieldWeight in 684, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.818051 = idf(docFreq=19512, maxDocs=44218)
              0.0625 = fieldNorm(doc=684)
        0.031989697 = product of:
          0.063979395 = sum of:
            0.063979395 = weight(_text_:language in 684) [ClassicSimilarity], result of:
              0.063979395 = score(doc=684,freq=2.0), product of:
                0.18449916 = queryWeight, product of:
                  3.9232929 = idf(docFreq=2376, maxDocs=44218)
                  0.04702661 = queryNorm
                0.34677336 = fieldWeight in 684, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.9232929 = idf(docFreq=2376, maxDocs=44218)
                  0.0625 = fieldNorm(doc=684)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
    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. Palais, E.S.: Abstracting for reference librarians (1988) 0.02
    0.022457756 = product of:
      0.044915512 = sum of:
        0.019429686 = weight(_text_:to in 2832) [ClassicSimilarity], result of:
          0.019429686 = score(doc=2832,freq=4.0), product of:
            0.08549677 = queryWeight, product of:
              1.818051 = idf(docFreq=19512, maxDocs=44218)
              0.04702661 = queryNorm
            0.22725637 = fieldWeight in 2832, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.818051 = idf(docFreq=19512, maxDocs=44218)
              0.0625 = fieldNorm(doc=2832)
        0.025485825 = product of:
          0.05097165 = sum of:
            0.05097165 = weight(_text_:22 in 2832) [ClassicSimilarity], result of:
              0.05097165 = score(doc=2832,freq=2.0), product of:
                0.16467917 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04702661 = 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)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
    Abstract
    Reference librarians, who are thoroughly familiar with the purpose, scope and arrangement of abstract periodicals, are uniquely qualified for the task of writing abstracts. The procedures described here offer a relatively simple way for them to write acceptable abstracts from the outset. Although research is being conducted in the area of machine generated abstracts, there wll continue to be a role for human abstractors.
    Source
    Reference librarian. 1988, no.22, S.297-308

Authors