Search (7 results, page 1 of 1)

0.024515856 = product of:
  0.049031712 = sum of:
    0.049031712 = product of:
      0.098063424 = sum of:
        0.098063424 = weight(_text_:22 in 486) [ClassicSimilarity], result of:
          0.098063424 = score(doc=486,freq=2.0), product of:
            0.18104185 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051699217 = queryNorm
            0.5416616 = fieldWeight in 486, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=486)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source

Indexer. 22(2000) no.1, S.2-13

0.024515856 = product of:
  0.049031712 = sum of:
    0.049031712 = product of:
      0.098063424 = sum of:
        0.098063424 = weight(_text_:22 in 4172) [ClassicSimilarity], result of:
          0.098063424 = score(doc=4172,freq=2.0), product of:
            0.18104185 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051699217 = queryNorm
            0.5416616 = fieldWeight in 4172, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=4172)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source

Indexer. 22(2001) no.4, S.178-180

0.024515856 = product of:
  0.049031712 = sum of:
    0.049031712 = product of:
      0.098063424 = sum of:
        0.098063424 = weight(_text_:22 in 4180) [ClassicSimilarity], result of:
          0.098063424 = score(doc=4180,freq=2.0), product of:
            0.18104185 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051699217 = queryNorm
            0.5416616 = fieldWeight in 4180, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=4180)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date

17.10.2005 13:54:22

0.019811803 = product of:
  0.039623607 = sum of:
    0.039623607 = product of:
      0.079247214 = sum of:
        0.079247214 = weight(_text_:22 in 6940) [ClassicSimilarity], result of:
          0.079247214 = score(doc=6940,freq=4.0), product of:
            0.18104185 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051699217 = queryNorm
            0.4377287 = fieldWeight in 6940, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=6940)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date

8. 3.1997 20:22:25

Source

Indexer. 20(1996) no.1, S.18-22

0.018694704 = product of:
  0.03738941 = sum of:
    0.03738941 = product of:
      0.07477882 = sum of:
        0.07477882 = weight(_text_:searching in 1942) [ClassicSimilarity], result of:
          0.07477882 = score(doc=1942,freq=2.0), product of:
            0.2091384 = queryWeight, product of:
              4.0452914 = idf(docFreq=2103, maxDocs=44218)
              0.051699217 = queryNorm
            0.3575566 = fieldWeight in 1942, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.0452914 = idf(docFreq=2103, maxDocs=44218)
              0.0625 = fieldNorm(doc=1942)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Postcoordination, in which terms are combined at the searching stage rather than at the time of indexing, has been the main form of database access since the 1950s. Reasons for the failure of postcoordinate searches include the absence of specified relationships between terms, the complexity of formulating Boolean searches, and the high frequency of terms in large databases. Recent writers on indexing electronic text have called for precoordination to enhance the precision of retrieval. Among precoordinate indexing structures, a book index with coined modifications is the most precise. The time and cost associated with such customized analysis will, however, limit its application in the electronic environment

0.01400906 = product of:
  0.02801812 = sum of:
    0.02801812 = product of:
      0.05603624 = sum of:
        0.05603624 = weight(_text_:22 in 3592) [ClassicSimilarity], result of:
          0.05603624 = score(doc=3592,freq=2.0), product of:
            0.18104185 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051699217 = queryNorm
            0.30952093 = fieldWeight in 3592, 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=3592)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date

14. 1.1996 5:56:22

0.01168419 = product of:
  0.02336838 = sum of:
    0.02336838 = product of:
      0.04673676 = sum of:
        0.04673676 = weight(_text_:searching in 703) [ClassicSimilarity], result of:
          0.04673676 = score(doc=703,freq=2.0), product of:
            0.2091384 = queryWeight, product of:
              4.0452914 = idf(docFreq=2103, maxDocs=44218)
              0.051699217 = queryNorm
            0.22347288 = fieldWeight in 703, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.0452914 = idf(docFreq=2103, maxDocs=44218)
              0.0390625 = fieldNorm(doc=703)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

It is a truism in information science that indexing is associated with 'aboutness', and that index terms that accurately represent what a document is about will serve the needs of the user/searcher well. It is contended in this paper that indexing which is limited to the representation of aboutness serves the novice in a discipline adequately, but does not serve the scholar or researcher, who is concerned with highly specific aspects of or points-of-view on a subject. The linguistic analogs of 'aboutness' and 'aspects' are 'topic' and 'comment' respectively. Serial indexing services deal with topics at varyng levels of specificity, but neglect comment almost entirely. This may explain the underutilization of secondary information services by scholars, as has been repeatedly demonstrated in user studies. It may also account for the incomplete lists of bibliographic references in many research papers. Natural language searching of fulltext databases does not solve this problem, because the aspect of a topic of interest to researchers is often inexpressible in concrete terms. The thesis is illustrated with examples of indexing failures in research projects the author has conducted on a range of linguistic and library-information science topics. Finally, the question of whether indexing can be improved to meet the needs of researchers is examined