Document (#12646)

Author
High, W.H.
Title
Library of Congress Classification numbers as subject access points in computer-based retrieval
Source
Cataloging and classification quarterly. 11(1990) no.1, S.37-43
Year
1990
Abstract
Subject retrieval by Library of Congress (LC) Classification numbers is examined from the perspective of 5 user groups of on-line catalogues. Although, at present, librarians are the user group most likely to benefit from the LC classification advances in the capabilities of on-line catalogues. Research on the use of the LC classification schedules as a component of subject retrieval should continue.
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
Object
LCC

Similar documents (content)

  1. Chan, L.M.: ¬The Library of Congress Classification System in an online environment (1990) 0.36
    0.36172017 = sum of:
      0.36172017 = product of:
        1.2918577 = sum of:
          0.16294625 = weight(abstract_txt:capabilities in 602) [ClassicSimilarity], result of:
            0.16294625 = score(doc=602,freq=1.0), product of:
              0.17473759 = queryWeight, product of:
                1.3468558 = boost
                5.9681263 = idf(docFreq=308, maxDocs=44421)
                0.021738384 = queryNorm
              0.93251973 = fieldWeight in 602, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9681263 = idf(docFreq=308, maxDocs=44421)
                0.15625 = fieldNorm(doc=602)
          0.04971379 = weight(abstract_txt:library in 602) [ClassicSimilarity], result of:
            0.04971379 = score(doc=602,freq=1.0), product of:
              0.099774145 = queryWeight, product of:
                1.439302 = boost
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.021738384 = queryNorm
              0.49826327 = fieldWeight in 602, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.15625 = fieldNorm(doc=602)
          0.09662252 = weight(abstract_txt:retrieval in 602) [ClassicSimilarity], result of:
            0.09662252 = score(doc=602,freq=1.0), product of:
              0.17787549 = queryWeight, product of:
                2.3536756 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.021738384 = queryNorm
              0.5432031 = fieldWeight in 602, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.15625 = fieldNorm(doc=602)
          0.24174033 = weight(abstract_txt:congress in 602) [ClassicSimilarity], result of:
            0.24174033 = score(doc=602,freq=1.0), product of:
              0.2863735 = queryWeight, product of:
                2.4384246 = boost
                5.4025183 = idf(docFreq=543, maxDocs=44421)
                0.021738384 = queryNorm
              0.8441435 = fieldWeight in 602, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4025183 = idf(docFreq=543, maxDocs=44421)
                0.15625 = fieldNorm(doc=602)
          0.13745593 = weight(abstract_txt:subject in 602) [ClassicSimilarity], result of:
            0.13745593 = score(doc=602,freq=1.0), product of:
              0.22499497 = queryWeight, product of:
                2.647128 = boost
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.021738384 = queryNorm
              0.6109289 = fieldWeight in 602, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.15625 = fieldNorm(doc=602)
          0.32749334 = weight(abstract_txt:line in 602) [ClassicSimilarity], result of:
            0.32749334 = score(doc=602,freq=1.0), product of:
              0.3506187 = queryWeight, product of:
                2.6981149 = boost
                5.9778824 = idf(docFreq=305, maxDocs=44421)
                0.021738384 = queryNorm
              0.9340441 = fieldWeight in 602, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9778824 = idf(docFreq=305, maxDocs=44421)
                0.15625 = fieldNorm(doc=602)
          0.27588555 = weight(abstract_txt:classification in 602) [ClassicSimilarity], result of:
            0.27588555 = score(doc=602,freq=2.0), product of:
              0.3127419 = queryWeight, product of:
                3.6037192 = boost
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.021738384 = queryNorm
              0.8821509 = fieldWeight in 602, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.15625 = fieldNorm(doc=602)
        0.28 = coord(7/25)
    
  2. Williamson, N.J.: ¬The Library of Congress Classification in the computer age (1989) 0.33
    0.3304329 = sum of:
      0.3304329 = product of:
        1.1801175 = sum of:
          0.08147313 = weight(abstract_txt:capabilities in 3074) [ClassicSimilarity], result of:
            0.08147313 = score(doc=3074,freq=1.0), product of:
              0.17473759 = queryWeight, product of:
                1.3468558 = boost
                5.9681263 = idf(docFreq=308, maxDocs=44421)
                0.021738384 = queryNorm
              0.46625987 = fieldWeight in 3074, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9681263 = idf(docFreq=308, maxDocs=44421)
                0.078125 = fieldNorm(doc=3074)
          0.035152957 = weight(abstract_txt:library in 3074) [ClassicSimilarity], result of:
            0.035152957 = score(doc=3074,freq=2.0), product of:
              0.099774145 = queryWeight, product of:
                1.439302 = boost
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.021738384 = queryNorm
              0.35232532 = fieldWeight in 3074, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.078125 = fieldNorm(doc=3074)
          0.31862673 = weight(abstract_txt:schedules in 3074) [ClassicSimilarity], result of:
            0.31862673 = score(doc=3074,freq=5.0), product of:
              0.2536539 = queryWeight, product of:
                1.6227391 = boost
                7.190608 = idf(docFreq=90, maxDocs=44421)
                0.021738384 = queryNorm
              1.2561475 = fieldWeight in 3074, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                7.190608 = idf(docFreq=90, maxDocs=44421)
                0.078125 = fieldNorm(doc=3074)
          0.17093621 = weight(abstract_txt:congress in 3074) [ClassicSimilarity], result of:
            0.17093621 = score(doc=3074,freq=2.0), product of:
              0.2863735 = queryWeight, product of:
                2.4384246 = boost
                5.4025183 = idf(docFreq=543, maxDocs=44421)
                0.021738384 = queryNorm
              0.59689957 = fieldWeight in 3074, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.4025183 = idf(docFreq=543, maxDocs=44421)
                0.078125 = fieldNorm(doc=3074)
          0.12136618 = weight(abstract_txt:catalogues in 3074) [ClassicSimilarity], result of:
            0.12136618 = score(doc=3074,freq=1.0), product of:
              0.28715643 = queryWeight, product of:
                2.4417555 = boost
                5.4098983 = idf(docFreq=539, maxDocs=44421)
                0.021738384 = queryNorm
              0.4226483 = fieldWeight in 3074, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4098983 = idf(docFreq=539, maxDocs=44421)
                0.078125 = fieldNorm(doc=3074)
          0.28361756 = weight(abstract_txt:line in 3074) [ClassicSimilarity], result of:
            0.28361756 = score(doc=3074,freq=3.0), product of:
              0.3506187 = queryWeight, product of:
                2.6981149 = boost
                5.9778824 = idf(docFreq=305, maxDocs=44421)
                0.021738384 = queryNorm
              0.80890596 = fieldWeight in 3074, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.9778824 = idf(docFreq=305, maxDocs=44421)
                0.078125 = fieldNorm(doc=3074)
          0.1689447 = weight(abstract_txt:classification in 3074) [ClassicSimilarity], result of:
            0.1689447 = score(doc=3074,freq=3.0), product of:
              0.3127419 = queryWeight, product of:
                3.6037192 = boost
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.021738384 = queryNorm
              0.5402049 = fieldWeight in 3074, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.078125 = fieldNorm(doc=3074)
        0.28 = coord(7/25)
    
  3. Nicholas, D.; Boydell, L.: BLAISE-LINE : enigma, anomaly or anachronism? (1996) 0.30
    0.3027033 = sum of:
      0.3027033 = product of:
        0.9459478 = sum of:
          0.039273195 = weight(abstract_txt:librarians in 5600) [ClassicSimilarity], result of:
            0.039273195 = score(doc=5600,freq=1.0), product of:
              0.10742555 = queryWeight, product of:
                1.0560433 = boost
                4.679491 = idf(docFreq=1120, maxDocs=44421)
                0.021738384 = queryNorm
              0.36558524 = fieldWeight in 5600, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.679491 = idf(docFreq=1120, maxDocs=44421)
                0.078125 = fieldNorm(doc=5600)
          0.035152957 = weight(abstract_txt:library in 5600) [ClassicSimilarity], result of:
            0.035152957 = score(doc=5600,freq=2.0), product of:
              0.099774145 = queryWeight, product of:
                1.439302 = boost
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.021738384 = queryNorm
              0.35232532 = fieldWeight in 5600, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.078125 = fieldNorm(doc=5600)
          0.038227975 = weight(abstract_txt:user in 5600) [ClassicSimilarity], result of:
            0.038227975 = score(doc=5600,freq=1.0), product of:
              0.1329355 = queryWeight, product of:
                1.6613586 = boost
                3.6808684 = idf(docFreq=3042, maxDocs=44421)
                0.021738384 = queryNorm
              0.28756785 = fieldWeight in 5600, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6808684 = idf(docFreq=3042, maxDocs=44421)
                0.078125 = fieldNorm(doc=5600)
          0.120870166 = weight(abstract_txt:congress in 5600) [ClassicSimilarity], result of:
            0.120870166 = score(doc=5600,freq=1.0), product of:
              0.2863735 = queryWeight, product of:
                2.4384246 = boost
                5.4025183 = idf(docFreq=543, maxDocs=44421)
                0.021738384 = queryNorm
              0.42207175 = fieldWeight in 5600, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4025183 = idf(docFreq=543, maxDocs=44421)
                0.078125 = fieldNorm(doc=5600)
          0.12136618 = weight(abstract_txt:catalogues in 5600) [ClassicSimilarity], result of:
            0.12136618 = score(doc=5600,freq=1.0), product of:
              0.28715643 = queryWeight, product of:
                2.4417555 = boost
                5.4098983 = idf(docFreq=539, maxDocs=44421)
                0.021738384 = queryNorm
              0.4226483 = fieldWeight in 5600, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4098983 = idf(docFreq=539, maxDocs=44421)
                0.078125 = fieldNorm(doc=5600)
          0.06872796 = weight(abstract_txt:subject in 5600) [ClassicSimilarity], result of:
            0.06872796 = score(doc=5600,freq=1.0), product of:
              0.22499497 = queryWeight, product of:
                2.647128 = boost
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.021738384 = queryNorm
              0.30546445 = fieldWeight in 5600, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.078125 = fieldNorm(doc=5600)
          0.1561807 = weight(abstract_txt:numbers in 5600) [ClassicSimilarity], result of:
            0.1561807 = score(doc=5600,freq=1.0), product of:
              0.33973345 = queryWeight, product of:
                2.6559021 = boost
                5.8843565 = idf(docFreq=335, maxDocs=44421)
                0.021738384 = queryNorm
              0.45971537 = fieldWeight in 5600, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8843565 = idf(docFreq=335, maxDocs=44421)
                0.078125 = fieldNorm(doc=5600)
          0.3661487 = weight(abstract_txt:line in 5600) [ClassicSimilarity], result of:
            0.3661487 = score(doc=5600,freq=5.0), product of:
              0.3506187 = queryWeight, product of:
                2.6981149 = boost
                5.9778824 = idf(docFreq=305, maxDocs=44421)
                0.021738384 = queryNorm
              1.0442932 = fieldWeight in 5600, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.9778824 = idf(docFreq=305, maxDocs=44421)
                0.078125 = fieldNorm(doc=5600)
        0.32 = coord(8/25)
    
  4. Gödert, W.: Verbale Inhaltserschließung : Ein Übersichtsartikel als kommentierter Literaturbericht (1991) 0.27
    0.26708537 = sum of:
      0.26708537 = product of:
        0.9538764 = sum of:
          0.0846956 = weight(abstract_txt:points in 6142) [ClassicSimilarity], result of:
            0.0846956 = score(doc=6142,freq=1.0), product of:
              0.1432843 = queryWeight, product of:
                1.2196275 = boost
                5.4043584 = idf(docFreq=542, maxDocs=44421)
                0.021738384 = queryNorm
              0.5911017 = fieldWeight in 6142, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4043584 = idf(docFreq=542, maxDocs=44421)
                0.109375 = fieldNorm(doc=6142)
          0.034799654 = weight(abstract_txt:library in 6142) [ClassicSimilarity], result of:
            0.034799654 = score(doc=6142,freq=1.0), product of:
              0.099774145 = queryWeight, product of:
                1.439302 = boost
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.021738384 = queryNorm
              0.3487843 = fieldWeight in 6142, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.109375 = fieldNorm(doc=6142)
          0.06763577 = weight(abstract_txt:retrieval in 6142) [ClassicSimilarity], result of:
            0.06763577 = score(doc=6142,freq=1.0), product of:
              0.17787549 = queryWeight, product of:
                2.3536756 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.021738384 = queryNorm
              0.3802422 = fieldWeight in 6142, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.109375 = fieldNorm(doc=6142)
          0.16991265 = weight(abstract_txt:catalogues in 6142) [ClassicSimilarity], result of:
            0.16991265 = score(doc=6142,freq=1.0), product of:
              0.28715643 = queryWeight, product of:
                2.4417555 = boost
                5.4098983 = idf(docFreq=539, maxDocs=44421)
                0.021738384 = queryNorm
              0.59170765 = fieldWeight in 6142, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4098983 = idf(docFreq=539, maxDocs=44421)
                0.109375 = fieldNorm(doc=6142)
          0.13607442 = weight(abstract_txt:subject in 6142) [ClassicSimilarity], result of:
            0.13607442 = score(doc=6142,freq=2.0), product of:
              0.22499497 = queryWeight, product of:
                2.647128 = boost
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.021738384 = queryNorm
              0.6047887 = fieldWeight in 6142, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.109375 = fieldNorm(doc=6142)
          0.32420185 = weight(abstract_txt:line in 6142) [ClassicSimilarity], result of:
            0.32420185 = score(doc=6142,freq=2.0), product of:
              0.3506187 = queryWeight, product of:
                2.6981149 = boost
                5.9778824 = idf(docFreq=305, maxDocs=44421)
                0.021738384 = queryNorm
              0.9246565 = fieldWeight in 6142, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.9778824 = idf(docFreq=305, maxDocs=44421)
                0.109375 = fieldNorm(doc=6142)
          0.13655639 = weight(abstract_txt:classification in 6142) [ClassicSimilarity], result of:
            0.13655639 = score(doc=6142,freq=1.0), product of:
              0.3127419 = queryWeight, product of:
                3.6037192 = boost
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.021738384 = queryNorm
              0.43664244 = fieldWeight in 6142, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.109375 = fieldNorm(doc=6142)
        0.28 = coord(7/25)
    
  5. Subrahmanyam, B.: Library of Congress Classification numbers : issues of consistency and their implications for union catalogs (2006) 0.26
    0.2608912 = sum of:
      0.2608912 = product of:
        0.815285 = sum of:
          0.04285709 = weight(abstract_txt:examined in 784) [ClassicSimilarity], result of:
            0.04285709 = score(doc=784,freq=1.0), product of:
              0.13212912 = queryWeight, product of:
                1.1711895 = boost
                5.189722 = idf(docFreq=672, maxDocs=44421)
                0.021738384 = queryNorm
              0.32435763 = fieldWeight in 784, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.189722 = idf(docFreq=672, maxDocs=44421)
                0.0625 = fieldNorm(doc=784)
          0.07396211 = weight(abstract_txt:continue in 784) [ClassicSimilarity], result of:
            0.07396211 = score(doc=784,freq=1.0), product of:
              0.19010328 = queryWeight, product of:
                1.4048266 = boost
                6.225004 = idf(docFreq=238, maxDocs=44421)
                0.021738384 = queryNorm
              0.38906276 = fieldWeight in 784, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.225004 = idf(docFreq=238, maxDocs=44421)
                0.0625 = fieldNorm(doc=784)
          0.048709374 = weight(abstract_txt:library in 784) [ClassicSimilarity], result of:
            0.048709374 = score(doc=784,freq=6.0), product of:
              0.099774145 = queryWeight, product of:
                1.439302 = boost
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.021738384 = queryNorm
              0.48819634 = fieldWeight in 784, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.0625 = fieldNorm(doc=784)
          0.113995366 = weight(abstract_txt:schedules in 784) [ClassicSimilarity], result of:
            0.113995366 = score(doc=784,freq=1.0), product of:
              0.2536539 = queryWeight, product of:
                1.6227391 = boost
                7.190608 = idf(docFreq=90, maxDocs=44421)
                0.021738384 = queryNorm
              0.449413 = fieldWeight in 784, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.190608 = idf(docFreq=90, maxDocs=44421)
                0.0625 = fieldNorm(doc=784)
          0.09669613 = weight(abstract_txt:congress in 784) [ClassicSimilarity], result of:
            0.09669613 = score(doc=784,freq=1.0), product of:
              0.2863735 = queryWeight, product of:
                2.4384246 = boost
                5.4025183 = idf(docFreq=543, maxDocs=44421)
                0.021738384 = queryNorm
              0.3376574 = fieldWeight in 784, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4025183 = idf(docFreq=543, maxDocs=44421)
                0.0625 = fieldNorm(doc=784)
          0.054982368 = weight(abstract_txt:subject in 784) [ClassicSimilarity], result of:
            0.054982368 = score(doc=784,freq=1.0), product of:
              0.22499497 = queryWeight, product of:
                2.647128 = boost
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.021738384 = queryNorm
              0.24437155 = fieldWeight in 784, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.0625 = fieldNorm(doc=784)
          0.3060504 = weight(abstract_txt:numbers in 784) [ClassicSimilarity], result of:
            0.3060504 = score(doc=784,freq=6.0), product of:
              0.33973345 = queryWeight, product of:
                2.6559021 = boost
                5.8843565 = idf(docFreq=335, maxDocs=44421)
                0.021738384 = queryNorm
              0.90085447 = fieldWeight in 784, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                5.8843565 = idf(docFreq=335, maxDocs=44421)
                0.0625 = fieldNorm(doc=784)
          0.07803222 = weight(abstract_txt:classification in 784) [ClassicSimilarity], result of:
            0.07803222 = score(doc=784,freq=1.0), product of:
              0.3127419 = queryWeight, product of:
                3.6037192 = boost
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.021738384 = queryNorm
              0.24950996 = fieldWeight in 784, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.0625 = fieldNorm(doc=784)
        0.32 = coord(8/25)