Document (#23609)

Author
Hearn, S.
Title
Machine-assisted validation of LC Subject Headings : implications for authority file structure
Source
The LCSH century: one hundred years with the Library of Congress Subject Headings system. Ed.: A.T.Stone
Imprint
New York : Haworth Press
Year
2000
Pages
S.107-115
Series
Cataloging and classification quarterly; vol.29, nos.1/2
Abstract
Many kinds of structure can be discerned in the headings and rules governing the Library of Congress Subject Headings. By addressing these structures at different levels, librarians can develop different approaches to the machine-assisted validation of subject headings, from the checking of individual words to the validation of complex forms of heading/subdivision compatibility. Using computer programs to assist with maintenance of subject headings is becoming increasingly necessary as technical services librarians strive to create consistent and useful patterns of subject collocation in library catalogs
Theme
Verbale Doksprachen für präkombinierte Einträge
Normdateien
Object
LCSH
Location
USA

Similar documents (author)

  1. Hearn, S.S.: ¬The year's work in subject analysis : 1989 (1990) 6.07
    6.0667334 = sum of:
      6.0667334 = weight(author_txt:hearn in 315) [ClassicSimilarity], result of:
        6.0667334 = fieldWeight in 315, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.706774 = idf(docFreq=6, maxDocs=42306)
          0.625 = fieldNorm(doc=315)
    
  2. Hearn, S.: Bibliographic control in the electronic age (1996) 6.07
    6.0667334 = sum of:
      6.0667334 = weight(author_txt:hearn in 6493) [ClassicSimilarity], result of:
        6.0667334 = fieldWeight in 6493, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.706774 = idf(docFreq=6, maxDocs=42306)
          0.625 = fieldNorm(doc=6493)
    
  3. Hearn, S.S.: Metadata structures and authority control (1999) 6.07
    6.0667334 = sum of:
      6.0667334 = weight(author_txt:hearn in 6902) [ClassicSimilarity], result of:
        6.0667334 = fieldWeight in 6902, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.706774 = idf(docFreq=6, maxDocs=42306)
          0.625 = fieldNorm(doc=6902)
    
  4. Hearn, S.: Comparing catalogs : currency and consistency of controlled headings (2009) 6.07
    6.0667334 = sum of:
      6.0667334 = weight(author_txt:hearn in 601) [ClassicSimilarity], result of:
        6.0667334 = fieldWeight in 601, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.706774 = idf(docFreq=6, maxDocs=42306)
          0.625 = fieldNorm(doc=601)
    
  5. Dezelar-Tiedman, C.; Genereux, C.; Hearn, S.: Utilizing Z39.50 to obtain bibliographic copy : a cost-containment study (2006) 3.64
    3.6400402 = sum of:
      3.6400402 = weight(author_txt:hearn in 1239) [ClassicSimilarity], result of:
        3.6400402 = fieldWeight in 1239, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.706774 = idf(docFreq=6, maxDocs=42306)
          0.375 = fieldNorm(doc=1239)
    

Similar documents (content)

  1. Drabenstott, K.M.: ¬The need for machine-readable authority records for topical subdivisions (1992) 0.28
    0.28357518 = sum of:
      0.28357518 = product of:
        1.0127685 = sum of:
          0.06392368 = weight(abstract_txt:assist in 1503) [ClassicSimilarity], result of:
            0.06392368 = score(doc=1503,freq=1.0), product of:
              0.110918075 = queryWeight, product of:
                1.0561007 = boost
                6.1473527 = idf(docFreq=245, maxDocs=42306)
                0.017084759 = queryNorm
              0.57631433 = fieldWeight in 1503, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.1473527 = idf(docFreq=245, maxDocs=42306)
                0.09375 = fieldNorm(doc=1503)
          0.094194554 = weight(abstract_txt:heading in 1503) [ClassicSimilarity], result of:
            0.094194554 = score(doc=1503,freq=2.0), product of:
              0.11399917 = queryWeight, product of:
                1.0706685 = boost
                6.232149 = idf(docFreq=225, maxDocs=42306)
                0.017084759 = queryNorm
              0.82627404 = fieldWeight in 1503, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.232149 = idf(docFreq=225, maxDocs=42306)
                0.09375 = fieldNorm(doc=1503)
          0.017842697 = weight(abstract_txt:library in 1503) [ClassicSimilarity], result of:
            0.017842697 = score(doc=1503,freq=1.0), product of:
              0.05968678 = queryWeight, product of:
                1.0956157 = boost
                3.188681 = idf(docFreq=4740, maxDocs=42306)
                0.017084759 = queryNorm
              0.29893884 = fieldWeight in 1503, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.188681 = idf(docFreq=4740, maxDocs=42306)
                0.09375 = fieldNorm(doc=1503)
          0.08410345 = weight(abstract_txt:machine in 1503) [ClassicSimilarity], result of:
            0.08410345 = score(doc=1503,freq=1.0), product of:
              0.16779552 = queryWeight, product of:
                1.8370008 = boost
                5.346409 = idf(docFreq=547, maxDocs=42306)
                0.017084759 = queryNorm
              0.5012258 = fieldWeight in 1503, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.346409 = idf(docFreq=547, maxDocs=42306)
                0.09375 = fieldNorm(doc=1503)
          0.16441162 = weight(abstract_txt:subject in 1503) [ClassicSimilarity], result of:
            0.16441162 = score(doc=1503,freq=4.0), product of:
              0.22429496 = queryWeight, product of:
                3.3581412 = boost
                3.9094145 = idf(docFreq=2305, maxDocs=42306)
                0.017084759 = queryNorm
              0.73301524 = fieldWeight in 1503, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.9094145 = idf(docFreq=2305, maxDocs=42306)
                0.09375 = fieldNorm(doc=1503)
          0.3223078 = weight(abstract_txt:validation in 1503) [ClassicSimilarity], result of:
            0.3223078 = score(doc=1503,freq=1.0), product of:
              0.47037995 = queryWeight, product of:
                3.7669442 = boost
                7.308879 = idf(docFreq=76, maxDocs=42306)
                0.017084759 = queryNorm
              0.68520737 = fieldWeight in 1503, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.308879 = idf(docFreq=76, maxDocs=42306)
                0.09375 = fieldNorm(doc=1503)
          0.2659847 = weight(abstract_txt:headings in 1503) [ClassicSimilarity], result of:
            0.2659847 = score(doc=1503,freq=2.0), product of:
              0.38944456 = queryWeight, product of:
                4.424987 = boost
                5.1513944 = idf(docFreq=665, maxDocs=42306)
                0.017084759 = queryNorm
              0.6829848 = fieldWeight in 1503, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.1513944 = idf(docFreq=665, maxDocs=42306)
                0.09375 = fieldNorm(doc=1503)
        0.28 = coord(7/25)
    
  2. Drabenstott, K.M.: Period subdivisions in the Library of Congress Subject Headings system : some thoughts and recommendations for the future (1992) 0.26
    0.26302016 = sum of:
      0.26302016 = product of:
        0.821938 = sum of:
          0.042615782 = weight(abstract_txt:assist in 1669) [ClassicSimilarity], result of:
            0.042615782 = score(doc=1669,freq=1.0), product of:
              0.110918075 = queryWeight, product of:
                1.0561007 = boost
                6.1473527 = idf(docFreq=245, maxDocs=42306)
                0.017084759 = queryNorm
              0.38420954 = fieldWeight in 1669, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.1473527 = idf(docFreq=245, maxDocs=42306)
                0.0625 = fieldNorm(doc=1669)
          0.06279638 = weight(abstract_txt:heading in 1669) [ClassicSimilarity], result of:
            0.06279638 = score(doc=1669,freq=2.0), product of:
              0.11399917 = queryWeight, product of:
                1.0706685 = boost
                6.232149 = idf(docFreq=225, maxDocs=42306)
                0.017084759 = queryNorm
              0.5508494 = fieldWeight in 1669, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.232149 = idf(docFreq=225, maxDocs=42306)
                0.0625 = fieldNorm(doc=1669)
          0.016822256 = weight(abstract_txt:library in 1669) [ClassicSimilarity], result of:
            0.016822256 = score(doc=1669,freq=2.0), product of:
              0.05968678 = queryWeight, product of:
                1.0956157 = boost
                3.188681 = idf(docFreq=4740, maxDocs=42306)
                0.017084759 = queryNorm
              0.28184223 = fieldWeight in 1669, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.188681 = idf(docFreq=4740, maxDocs=42306)
                0.0625 = fieldNorm(doc=1669)
          0.105669856 = weight(abstract_txt:subdivision in 1669) [ClassicSimilarity], result of:
            0.105669856 = score(doc=1669,freq=1.0), product of:
              0.20319955 = queryWeight, product of:
                1.4294387 = boost
                8.320479 = idf(docFreq=27, maxDocs=42306)
                0.017084759 = queryNorm
              0.52002996 = fieldWeight in 1669, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.320479 = idf(docFreq=27, maxDocs=42306)
                0.0625 = fieldNorm(doc=1669)
          0.07929349 = weight(abstract_txt:machine in 1669) [ClassicSimilarity], result of:
            0.07929349 = score(doc=1669,freq=2.0), product of:
              0.16779552 = queryWeight, product of:
                1.8370008 = boost
                5.346409 = idf(docFreq=547, maxDocs=42306)
                0.017084759 = queryNorm
              0.47256023 = fieldWeight in 1669, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.346409 = idf(docFreq=547, maxDocs=42306)
                0.0625 = fieldNorm(doc=1669)
          0.12254518 = weight(abstract_txt:subject in 1669) [ClassicSimilarity], result of:
            0.12254518 = score(doc=1669,freq=5.0), product of:
              0.22429496 = queryWeight, product of:
                3.3581412 = boost
                3.9094145 = idf(docFreq=2305, maxDocs=42306)
                0.017084759 = queryNorm
              0.5463573 = fieldWeight in 1669, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.9094145 = idf(docFreq=2305, maxDocs=42306)
                0.0625 = fieldNorm(doc=1669)
          0.21487188 = weight(abstract_txt:validation in 1669) [ClassicSimilarity], result of:
            0.21487188 = score(doc=1669,freq=1.0), product of:
              0.47037995 = queryWeight, product of:
                3.7669442 = boost
                7.308879 = idf(docFreq=76, maxDocs=42306)
                0.017084759 = queryNorm
              0.45680493 = fieldWeight in 1669, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.308879 = idf(docFreq=76, maxDocs=42306)
                0.0625 = fieldNorm(doc=1669)
          0.17732315 = weight(abstract_txt:headings in 1669) [ClassicSimilarity], result of:
            0.17732315 = score(doc=1669,freq=2.0), product of:
              0.38944456 = queryWeight, product of:
                4.424987 = boost
                5.1513944 = idf(docFreq=665, maxDocs=42306)
                0.017084759 = queryNorm
              0.45532322 = fieldWeight in 1669, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.1513944 = idf(docFreq=665, maxDocs=42306)
                0.0625 = fieldNorm(doc=1669)
        0.32 = coord(8/25)
    
  3. Chan, L.M.; Vizine-Goetz, D.: Towards a computer-generated subject validation file : feasibility and usefulness (1998) 0.25
    0.25213456 = sum of:
      0.25213456 = product of:
        1.0505607 = sum of:
          0.08880748 = weight(abstract_txt:heading in 2782) [ClassicSimilarity], result of:
            0.08880748 = score(doc=2782,freq=4.0), product of:
              0.11399917 = queryWeight, product of:
                1.0706685 = boost
                6.232149 = idf(docFreq=225, maxDocs=42306)
                0.017084759 = queryNorm
              0.77901864 = fieldWeight in 2782, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.232149 = idf(docFreq=225, maxDocs=42306)
                0.0625 = fieldNorm(doc=2782)
          0.046521116 = weight(abstract_txt:maintenance in 2782) [ClassicSimilarity], result of:
            0.046521116 = score(doc=2782,freq=1.0), product of:
              0.11759497 = queryWeight, product of:
                1.0874231 = boost
                6.3296742 = idf(docFreq=204, maxDocs=42306)
                0.017084759 = queryNorm
              0.39560464 = fieldWeight in 2782, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.3296742 = idf(docFreq=204, maxDocs=42306)
                0.0625 = fieldNorm(doc=2782)
          0.011895131 = weight(abstract_txt:library in 2782) [ClassicSimilarity], result of:
            0.011895131 = score(doc=2782,freq=1.0), product of:
              0.05968678 = queryWeight, product of:
                1.0956157 = boost
                3.188681 = idf(docFreq=4740, maxDocs=42306)
                0.017084759 = queryNorm
              0.19929256 = fieldWeight in 2782, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.188681 = idf(docFreq=4740, maxDocs=42306)
                0.0625 = fieldNorm(doc=2782)
          0.15500876 = weight(abstract_txt:subject in 2782) [ClassicSimilarity], result of:
            0.15500876 = score(doc=2782,freq=8.0), product of:
              0.22429496 = queryWeight, product of:
                3.3581412 = boost
                3.9094145 = idf(docFreq=2305, maxDocs=42306)
                0.017084759 = queryNorm
              0.6910934 = fieldWeight in 2782, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                3.9094145 = idf(docFreq=2305, maxDocs=42306)
                0.0625 = fieldNorm(doc=2782)
          0.37216902 = weight(abstract_txt:validation in 2782) [ClassicSimilarity], result of:
            0.37216902 = score(doc=2782,freq=3.0), product of:
              0.47037995 = queryWeight, product of:
                3.7669442 = boost
                7.308879 = idf(docFreq=76, maxDocs=42306)
                0.017084759 = queryNorm
              0.79120934 = fieldWeight in 2782, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.308879 = idf(docFreq=76, maxDocs=42306)
                0.0625 = fieldNorm(doc=2782)
          0.37615922 = weight(abstract_txt:headings in 2782) [ClassicSimilarity], result of:
            0.37615922 = score(doc=2782,freq=9.0), product of:
              0.38944456 = queryWeight, product of:
                4.424987 = boost
                5.1513944 = idf(docFreq=665, maxDocs=42306)
                0.017084759 = queryNorm
              0.9658865 = fieldWeight in 2782, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                5.1513944 = idf(docFreq=665, maxDocs=42306)
                0.0625 = fieldNorm(doc=2782)
        0.24 = coord(6/25)
    
  4. Drabenstott, K.M.: Facilitating geographic subdivision assignment in subject headings (1992) 0.20
    0.20270506 = sum of:
      0.20270506 = product of:
        0.84460443 = sum of:
          0.06392368 = weight(abstract_txt:assist in 3709) [ClassicSimilarity], result of:
            0.06392368 = score(doc=3709,freq=1.0), product of:
              0.110918075 = queryWeight, product of:
                1.0561007 = boost
                6.1473527 = idf(docFreq=245, maxDocs=42306)
                0.017084759 = queryNorm
              0.57631433 = fieldWeight in 3709, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.1473527 = idf(docFreq=245, maxDocs=42306)
                0.09375 = fieldNorm(doc=3709)
          0.11536429 = weight(abstract_txt:heading in 3709) [ClassicSimilarity], result of:
            0.11536429 = score(doc=3709,freq=3.0), product of:
              0.11399917 = queryWeight, product of:
                1.0706685 = boost
                6.232149 = idf(docFreq=225, maxDocs=42306)
                0.017084759 = queryNorm
              1.0119748 = fieldWeight in 3709, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.232149 = idf(docFreq=225, maxDocs=42306)
                0.09375 = fieldNorm(doc=3709)
          0.017842697 = weight(abstract_txt:library in 3709) [ClassicSimilarity], result of:
            0.017842697 = score(doc=3709,freq=1.0), product of:
              0.05968678 = queryWeight, product of:
                1.0956157 = boost
                3.188681 = idf(docFreq=4740, maxDocs=42306)
                0.017084759 = queryNorm
              0.29893884 = fieldWeight in 3709, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.188681 = idf(docFreq=4740, maxDocs=42306)
                0.09375 = fieldNorm(doc=3709)
          0.31700954 = weight(abstract_txt:subdivision in 3709) [ClassicSimilarity], result of:
            0.31700954 = score(doc=3709,freq=4.0), product of:
              0.20319955 = queryWeight, product of:
                1.4294387 = boost
                8.320479 = idf(docFreq=27, maxDocs=42306)
                0.017084759 = queryNorm
              1.5600898 = fieldWeight in 3709, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                8.320479 = idf(docFreq=27, maxDocs=42306)
                0.09375 = fieldNorm(doc=3709)
          0.14238463 = weight(abstract_txt:subject in 3709) [ClassicSimilarity], result of:
            0.14238463 = score(doc=3709,freq=3.0), product of:
              0.22429496 = queryWeight, product of:
                3.3581412 = boost
                3.9094145 = idf(docFreq=2305, maxDocs=42306)
                0.017084759 = queryNorm
              0.6348098 = fieldWeight in 3709, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.9094145 = idf(docFreq=2305, maxDocs=42306)
                0.09375 = fieldNorm(doc=3709)
          0.18807961 = weight(abstract_txt:headings in 3709) [ClassicSimilarity], result of:
            0.18807961 = score(doc=3709,freq=1.0), product of:
              0.38944456 = queryWeight, product of:
                4.424987 = boost
                5.1513944 = idf(docFreq=665, maxDocs=42306)
                0.017084759 = queryNorm
              0.48294324 = fieldWeight in 3709, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.1513944 = idf(docFreq=665, maxDocs=42306)
                0.09375 = fieldNorm(doc=3709)
        0.24 = coord(6/25)
    
  5. Figueroa-Servín, R.D.: Subject authority control at El Colegio de Mexico's Library : the whats and hows of a project (2001) 0.20
    0.19850302 = sum of:
      0.19850302 = product of:
        0.8270959 = sum of:
          0.029737826 = weight(abstract_txt:library in 426) [ClassicSimilarity], result of:
            0.029737826 = score(doc=426,freq=4.0), product of:
              0.05968678 = queryWeight, product of:
                1.0956157 = boost
                3.188681 = idf(docFreq=4740, maxDocs=42306)
                0.017084759 = queryNorm
              0.49823138 = fieldWeight in 426, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.188681 = idf(docFreq=4740, maxDocs=42306)
                0.078125 = fieldNorm(doc=426)
          0.038343165 = weight(abstract_txt:structure in 426) [ClassicSimilarity], result of:
            0.038343165 = score(doc=426,freq=1.0), product of:
              0.11224077 = queryWeight, product of:
                1.5024308 = boost
                4.372676 = idf(docFreq=1450, maxDocs=42306)
                0.017084759 = queryNorm
              0.34161532 = fieldWeight in 426, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.372676 = idf(docFreq=1450, maxDocs=42306)
                0.078125 = fieldNorm(doc=426)
          0.06577409 = weight(abstract_txt:librarians in 426) [ClassicSimilarity], result of:
            0.06577409 = score(doc=426,freq=2.0), product of:
              0.12765914 = queryWeight, product of:
                1.6023047 = boost
                4.663349 = idf(docFreq=1084, maxDocs=42306)
                0.017084759 = queryNorm
              0.51523215 = fieldWeight in 426, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.663349 = idf(docFreq=1084, maxDocs=42306)
                0.078125 = fieldNorm(doc=426)
          0.15318148 = weight(abstract_txt:subject in 426) [ClassicSimilarity], result of:
            0.15318148 = score(doc=426,freq=5.0), product of:
              0.22429496 = queryWeight, product of:
                3.3581412 = boost
                3.9094145 = idf(docFreq=2305, maxDocs=42306)
                0.017084759 = queryNorm
              0.68294656 = fieldWeight in 426, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.9094145 = idf(docFreq=2305, maxDocs=42306)
                0.078125 = fieldNorm(doc=426)
          0.26858985 = weight(abstract_txt:validation in 426) [ClassicSimilarity], result of:
            0.26858985 = score(doc=426,freq=1.0), product of:
              0.47037995 = queryWeight, product of:
                3.7669442 = boost
                7.308879 = idf(docFreq=76, maxDocs=42306)
                0.017084759 = queryNorm
              0.5710062 = fieldWeight in 426, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.308879 = idf(docFreq=76, maxDocs=42306)
                0.078125 = fieldNorm(doc=426)
          0.27146953 = weight(abstract_txt:headings in 426) [ClassicSimilarity], result of:
            0.27146953 = score(doc=426,freq=3.0), product of:
              0.38944456 = queryWeight, product of:
                4.424987 = boost
                5.1513944 = idf(docFreq=665, maxDocs=42306)
                0.017084759 = queryNorm
              0.6970685 = fieldWeight in 426, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.1513944 = idf(docFreq=665, maxDocs=42306)
                0.078125 = fieldNorm(doc=426)
        0.24 = coord(6/25)