Search (6 results, page 1 of 1)

0.040340956 = product of:
  0.08068191 = sum of:
    0.08068191 = product of:
      0.16136383 = sum of:
        0.16136383 = weight(_text_:headings in 1066) [ClassicSimilarity], result of:
          0.16136383 = score(doc=1066,freq=6.0), product of:
            0.24837378 = queryWeight, product of:
              4.849944 = idf(docFreq=940, maxDocs=44218)
              0.051211677 = queryNorm
            0.6496814 = fieldWeight in 1066, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              4.849944 = idf(docFreq=940, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1066)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Key problems of subject searches in online public access catalogs are that too much may be retrieved and that the display may be arranged in what appears to be an unintuitive and unhelpful manner. A study was undertaken on one large database to determine how often the display of a subject and its modifications and subdivisions extended over more than two screens and what the results on display would be of compressing geographic subdivisions and other modifications. The study then addressed the question of how often the display of a term and its subdivisions was interrupted by the appearance in the display of inverted headings, phrase headings, and headings with parenthetical qualifiers

0.03293825 = product of:
  0.0658765 = sum of:
    0.0658765 = product of:
      0.131753 = sum of:
        0.131753 = weight(_text_:headings in 5612) [ClassicSimilarity], result of:
          0.131753 = score(doc=5612,freq=4.0), product of:
            0.24837378 = queryWeight, product of:
              4.849944 = idf(docFreq=940, maxDocs=44218)
              0.051211677 = queryNorm
            0.5304626 = fieldWeight in 5612, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.849944 = idf(docFreq=940, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5612)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Recent papers have called attention to discrepancies in the assignment of LCSH. While philosophical arguments can be made that subject analysis, if not a logical impossibility, at least is point-of-view dependent, subject headings continue to be assigned and continue to be useful. The hypothesis advanced in the present project is that to a considerable degree there is a clear-cut right and wrong to LCSH subject heading assignment. To test the hypothesis, it was postulated that the assignment of a subject heading is correct if it is supported by textual warrant (at least 20% of the book being cataloged is on the topic) and is constructed in accordance with the LoC Subject Cataloging Manual: Subject Headings. A sample of 100 books on scientific subjects was used to test the hypothesis

0.028232787 = product of:
  0.056465574 = sum of:
    0.056465574 = product of:
      0.11293115 = sum of:
        0.11293115 = weight(_text_:headings in 5599) [ClassicSimilarity], result of:
          0.11293115 = score(doc=5599,freq=4.0), product of:
            0.24837378 = queryWeight, product of:
              4.849944 = idf(docFreq=940, maxDocs=44218)
              0.051211677 = queryNorm
            0.45468226 = fieldWeight in 5599, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.849944 = idf(docFreq=940, maxDocs=44218)
              0.046875 = fieldNorm(doc=5599)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

This paper looks at changes affecting LCSH over its 100-year history. Adopting a linguistic conceptualization, it frames these changes as relating to the semantics, syntax and pragmatics of the LCSH language. While its category semantics has remained stable over time, the LCSH relational semantics underwent a significant upheaval when a thesaural structure was imposed upon its traditional See and See also structure. Over time the LCSH syntax has become increasingly complex as it has moved from being largely enumerative to in large part synthetic. Until fairly recently the LCSH pragmatics consisted of only one rule, viz, the injunction to assign specific headings. This rule, always controversial, has become even more debated and interpreted with the move to the online environment

Source

The LCSH century: one hundred years with the Library of Congress Subject Headings system. Ed.: A.T. Stone

0.028232787 = product of:
  0.056465574 = sum of:
    0.056465574 = product of:
      0.11293115 = sum of:
        0.11293115 = weight(_text_:headings in 5602) [ClassicSimilarity], result of:
          0.11293115 = score(doc=5602,freq=4.0), product of:
            0.24837378 = queryWeight, product of:
              4.849944 = idf(docFreq=940, maxDocs=44218)
              0.051211677 = queryNorm
            0.45468226 = fieldWeight in 5602, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.849944 = idf(docFreq=940, maxDocs=44218)
              0.046875 = fieldNorm(doc=5602)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

This paper looks at changes affecting LCSH over its 100-year history. Adopting a linguistic conceptualization, it frames these changes as relating to the semantics, syntax and pragmatics of the LCSH language. While its category semantics has remained stable over time, the LCSH relational semantics underwent a significant upheaval when a thesaural structure was imposed upon its traditional See and See also structure. Over time the LCSH syntax has become increasingly complex as it has moved from being largely enumerative to in large part synthetic. Until fairly recently the LCSH pragmatics consisted of only one rule, viz, the injunction to assign specific headings. This rule, always controversial, has become even more debated and interpreted with the move to the online environment

Source

The LCSH century: one hundred years with the Library of Congress Subject Headings system. Ed.: A.T. Stone

0.026618127 = product of:
  0.053236254 = sum of:
    0.053236254 = product of:
      0.10647251 = sum of:
        0.10647251 = weight(_text_:headings in 762) [ClassicSimilarity], result of:
          0.10647251 = score(doc=762,freq=2.0), product of:
            0.24837378 = queryWeight, product of:
              4.849944 = idf(docFreq=940, maxDocs=44218)
              0.051211677 = queryNorm
            0.42867854 = fieldWeight in 762, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.849944 = idf(docFreq=940, maxDocs=44218)
              0.0625 = fieldNorm(doc=762)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Delineates on the changing role of vocabulary control devices such as classification, subject headings, and thesaurus. Identifies the basic issue in the design and development of these devices and their role in the changing information technology. The paper identifies the differentiations needed in the new roles of these devices in data base technology

0.019963596 = product of:
  0.039927192 = sum of:
    0.039927192 = product of:
      0.079854384 = sum of:
        0.079854384 = weight(_text_:headings in 2114) [ClassicSimilarity], result of:
          0.079854384 = score(doc=2114,freq=2.0), product of:
            0.24837378 = queryWeight, product of:
              4.849944 = idf(docFreq=940, maxDocs=44218)
              0.051211677 = queryNorm
            0.3215089 = fieldWeight in 2114, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.849944 = idf(docFreq=940, maxDocs=44218)
              0.046875 = fieldNorm(doc=2114)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

The last several years have seen the evolution of prototype systems exploiting the use of the Dewey Decimal Classification (DDC) as an interface to online catalogs. One such system, calles DORS (Dewy Online Retrieval System) was developed at the University of California, Los Angeles by the authors. The feature distinguishing this system is an automatically generated chain index, in particular the algorithms that were created for its automatic generation and the problems that were encountered. The problems were of three kinds: those that were overcome, but were not for lack of time and resources and those that we believe cannot be overcome. The paper concludes with suggestions for future resaerch and possible formatting changes to the DDC feature headings that would facilitate chain-index generation