Search (7 results, page 1 of 1)

  • × author_ss:"Chan, L.M."
  • × year_i:[1990 TO 2000}
  1. Chan, L.M.: Functions of a subject authority file (1991) 0.09
    0.08559122 = product of:
      0.12838683 = sum of:
        0.045045823 = weight(_text_:im in 2456) [ClassicSimilarity], result of:
          0.045045823 = score(doc=2456,freq=2.0), product of:
            0.1442303 = queryWeight, product of:
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.051022716 = queryNorm
            0.3123187 = fieldWeight in 2456, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.078125 = fieldNorm(doc=2456)
        0.083340995 = product of:
          0.12501149 = sum of:
            0.07342987 = weight(_text_:online in 2456) [ClassicSimilarity], result of:
              0.07342987 = score(doc=2456,freq=4.0), product of:
                0.1548489 = queryWeight, product of:
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.051022716 = queryNorm
                0.47420335 = fieldWeight in 2456, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.078125 = fieldNorm(doc=2456)
            0.051581617 = weight(_text_:retrieval in 2456) [ClassicSimilarity], result of:
              0.051581617 = score(doc=2456,freq=2.0), product of:
                0.15433937 = queryWeight, product of:
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.051022716 = queryNorm
                0.33420905 = fieldWeight in 2456, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.078125 = fieldNorm(doc=2456)
          0.6666667 = coord(2/3)
      0.6666667 = coord(2/3)
    
    Source
    Subject authorities in the online environment: papers from a conference program held in San Francisco, 29.6.1987. Ed.: K.M. Drabenstott
    Theme
    Verbale Doksprachen im Online-Retrieval
  2. Chan, L.M.: ¬The Library of Congress Classification System in an online environment (1990) 0.08
    0.081937425 = product of:
      0.12290613 = sum of:
        0.03603666 = weight(_text_:im in 477) [ClassicSimilarity], result of:
          0.03603666 = score(doc=477,freq=2.0), product of:
            0.1442303 = queryWeight, product of:
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.051022716 = queryNorm
            0.24985497 = fieldWeight in 477, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.0625 = fieldNorm(doc=477)
        0.08686948 = product of:
          0.13030422 = sum of:
            0.071946286 = weight(_text_:online in 477) [ClassicSimilarity], result of:
              0.071946286 = score(doc=477,freq=6.0), product of:
                0.1548489 = queryWeight, product of:
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.051022716 = queryNorm
                0.4646225 = fieldWeight in 477, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.0625 = fieldNorm(doc=477)
            0.058357935 = weight(_text_:retrieval in 477) [ClassicSimilarity], result of:
              0.058357935 = score(doc=477,freq=4.0), product of:
                0.15433937 = queryWeight, product of:
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.051022716 = queryNorm
                0.37811437 = fieldWeight in 477, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.0625 = fieldNorm(doc=477)
          0.6666667 = coord(2/3)
      0.6666667 = coord(2/3)
    
    Abstract
    Advantages and disadvantages of on-line classification access are presented with special attention to Library of Congress Classification (LCC) features for subject browsing, known item-searching, enhancement of keyword and controlled vocabulary searching, and other unique retrieval capabilities.
    Footnote
    Paper presented at the 2nd Annette Lewis Phinazee Symposium on Classification as an enhancement of intellectual access to information in an online environment, held at the School of Library and Information Sciences, North Carolina Central University, Durham, North Carolina.
    Theme
    Klassifikationssysteme im Online-Retrieval
  3. Chan, L.M.: Subject access systems in the USA (1995) 0.06
    0.060825996 = product of:
      0.09123899 = sum of:
        0.03603666 = weight(_text_:im in 1633) [ClassicSimilarity], result of:
          0.03603666 = score(doc=1633,freq=2.0), product of:
            0.1442303 = queryWeight, product of:
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.051022716 = queryNorm
            0.24985497 = fieldWeight in 1633, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.0625 = fieldNorm(doc=1633)
        0.05520233 = product of:
          0.082803495 = sum of:
            0.0415382 = weight(_text_:online in 1633) [ClassicSimilarity], result of:
              0.0415382 = score(doc=1633,freq=2.0), product of:
                0.1548489 = queryWeight, product of:
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.051022716 = queryNorm
                0.2682499 = fieldWeight in 1633, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1633)
            0.041265294 = weight(_text_:retrieval in 1633) [ClassicSimilarity], result of:
              0.041265294 = score(doc=1633,freq=2.0), product of:
                0.15433937 = queryWeight, product of:
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.051022716 = queryNorm
                0.26736724 = fieldWeight in 1633, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1633)
          0.6666667 = coord(2/3)
      0.6666667 = coord(2/3)
    
    Theme
    Verbale Doksprachen im Online-Retrieval
  4. Chan, L.M.; Lin, X.; Zeng, M.: Structural and multilingual approaches to subject access on the Web (1999) 0.05
    0.05078162 = product of:
      0.07617243 = sum of:
        0.06241733 = weight(_text_:im in 162) [ClassicSimilarity], result of:
          0.06241733 = score(doc=162,freq=6.0), product of:
            0.1442303 = queryWeight, product of:
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.051022716 = queryNorm
            0.43276152 = fieldWeight in 162, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              2.8267863 = idf(docFreq=7115, maxDocs=44218)
              0.0625 = fieldNorm(doc=162)
        0.013755098 = product of:
          0.041265294 = sum of:
            0.041265294 = weight(_text_:retrieval in 162) [ClassicSimilarity], result of:
              0.041265294 = score(doc=162,freq=2.0), product of:
                0.15433937 = queryWeight, product of:
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.051022716 = queryNorm
                0.26736724 = fieldWeight in 162, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.0625 = fieldNorm(doc=162)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Abstract
    Zu den großen Herausforderungen einer sinnvollen Suche im WWW gehören die riesige Menge des Verfügbaren und die Sparchbarrieren. Verfahren, die die Web-Ressourcen im Hinblick auf ein effizienteres Retrieval inhaltlich strukturieren, werden daher ebenso dringend benötigt wie Programme, die mit der Sprachvielfalt umgehen können. Im folgenden Vortrag werden wir einige Ansätze diskutieren, die zur Bewältigung der beiden Probleme derzeit unternommen werden
  5. Chan, L.M.: Subject analysis tools online : the challenge ahead (1990) 0.03
    0.029810568 = product of:
      0.0894317 = sum of:
        0.0894317 = product of:
          0.13414755 = sum of:
            0.09288225 = weight(_text_:online in 2165) [ClassicSimilarity], result of:
              0.09288225 = score(doc=2165,freq=10.0), product of:
                0.1548489 = queryWeight, product of:
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.051022716 = queryNorm
                0.5998251 = fieldWeight in 2165, product of:
                  3.1622777 = tf(freq=10.0), with freq of:
                    10.0 = termFreq=10.0
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.0625 = fieldNorm(doc=2165)
            0.041265294 = weight(_text_:retrieval in 2165) [ClassicSimilarity], result of:
              0.041265294 = score(doc=2165,freq=2.0), product of:
                0.15433937 = queryWeight, product of:
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.051022716 = queryNorm
                0.26736724 = fieldWeight in 2165, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.0625 = fieldNorm(doc=2165)
          0.6666667 = coord(2/3)
      0.33333334 = coord(1/3)
    
    Abstract
    As the online catalog continues to be developed and refined, the question arises as to how the traditional subject analysis tools, the LCSH, the LCC, and the DDC, can be most effectively adapted to the online environment. This article examines the limitations and potentials of these tools and the challenges of incorporating them online. The traditional and potential functions of these tools, the requirements for their becoming efficient online cataloging and retrieval tools, and recent developments toward these goals are discussed
  6. Chan, L.M.; Hodges, T.: Subject cataloguing and classification : the late 1980s and beyond (1990) 0.02
    0.022224266 = product of:
      0.066672795 = sum of:
        0.066672795 = product of:
          0.10000919 = sum of:
            0.058743894 = weight(_text_:online in 3010) [ClassicSimilarity], result of:
              0.058743894 = score(doc=3010,freq=4.0), product of:
                0.1548489 = queryWeight, product of:
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.051022716 = queryNorm
                0.37936267 = fieldWeight in 3010, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.0349014 = idf(docFreq=5778, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3010)
            0.041265294 = weight(_text_:retrieval in 3010) [ClassicSimilarity], result of:
              0.041265294 = score(doc=3010,freq=2.0), product of:
                0.15433937 = queryWeight, product of:
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.051022716 = queryNorm
                0.26736724 = fieldWeight in 3010, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.024915 = idf(docFreq=5836, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3010)
          0.6666667 = coord(2/3)
      0.33333334 = coord(1/3)
    
    Abstract
    The chapter deals with methods of subject cataloguing, subject analysis and representation of library materials and outlines the practice of subject searching in library catalogs after the introduction of online catalogs. The vocabulary control methods in the Library of Congress Classification and LCSH are described and strategies for the use of theses systems in online retrieval situations are outlined
  7. Chan, L.M.: Library of Congress Subject Headings : principles and application (1995) 0.01
    0.009217165 = product of:
      0.027651494 = sum of:
        0.027651494 = product of:
          0.08295448 = sum of:
            0.08295448 = weight(_text_:22 in 3985) [ClassicSimilarity], result of:
              0.08295448 = score(doc=3985,freq=2.0), product of:
                0.17867287 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051022716 = queryNorm
                0.46428138 = fieldWeight in 3985, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=3985)
          0.33333334 = coord(1/3)
      0.33333334 = coord(1/3)
    
    Date
    25.11.2005 18:37:22