Document (#17387)

Author
Drabenstott, K.M.
Vizine-Goetz, D.
Title
Using subject headings for online retrieval : theory, practice and potential
Imprint
San Diego, CA : Academic Press
Year
1994
Pages
XVIII,365 S
Isbn
0-12-221570-2
Abstract
Using subject headings for Online Retrieval is an indispensable tool for online system desingners who are developing new systems or refining exicting ones. The book describes subject analysis and subject searching in online catalogs, including the limitations of retrieval, and demonstrates how such limitations can be overcome through system design and programming. The book describes the Library of Congress Subject headings system and system characteristics, shows how information is stored in machine readable files, and offers examples of and recommendations for successful methods. Tables are included to support these recommendations, and diagrams, graphs, and bar charts are used to provide results of data analyses.
Footnote
Rez. in: Information processing and management 31(1995) no.3, S.450-451 (R.R. Larson); Library resources and technical services 41(1997) no.1, S.60-67 (B.H. Weinberg)
Theme
Verbale Doksprachen im Online-Retrieval
Retrievalstudien

Similar documents (author)

  1. Drabenstott, K.M.; Vizine-Goetz, D.: Search trees for subject searching in online catalogs (1990) 6.02
    6.0246906 = sum of:
      6.0246906 = sum of:
        1.9122196 = weight(author_txt:vizine in 2431) [ClassicSimilarity], result of:
          1.9122196 = score(doc=2431,freq=1.0), product of:
            0.5585182 = queryWeight, product of:
              7.825686 = idf(docFreq=47, maxDocs=44218)
              0.071369864 = queryNorm
            3.4237375 = fieldWeight in 2431, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.825686 = idf(docFreq=47, maxDocs=44218)
              0.4375 = fieldNorm(doc=2431)
        1.9122196 = weight(author_txt:goetz in 2431) [ClassicSimilarity], result of:
          1.9122196 = score(doc=2431,freq=1.0), product of:
            0.5585182 = queryWeight, product of:
              7.825686 = idf(docFreq=47, maxDocs=44218)
              0.071369864 = queryNorm
            3.4237375 = fieldWeight in 2431, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.825686 = idf(docFreq=47, maxDocs=44218)
              0.4375 = fieldNorm(doc=2431)
        2.2002516 = weight(author_txt:drabenstott in 2431) [ClassicSimilarity], result of:
          2.2002516 = score(doc=2431,freq=1.0), product of:
            0.61328214 = queryWeight, product of:
              1.0478799 = boost
              8.200379 = idf(docFreq=32, maxDocs=44218)
              0.071369864 = queryNorm
            3.587666 = fieldWeight in 2431, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.200379 = idf(docFreq=32, maxDocs=44218)
              0.4375 = fieldNorm(doc=2431)
    
  2. Vizine-Goetz, D.; Drabenstott, K.M.: Computer and manual analysis of subject terms entered by online catalog users (1991) 6.02
    6.0246906 = sum of:
      6.0246906 = sum of:
        1.9122196 = weight(author_txt:vizine in 3679) [ClassicSimilarity], result of:
          1.9122196 = score(doc=3679,freq=1.0), product of:
            0.5585182 = queryWeight, product of:
              7.825686 = idf(docFreq=47, maxDocs=44218)
              0.071369864 = queryNorm
            3.4237375 = fieldWeight in 3679, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.825686 = idf(docFreq=47, maxDocs=44218)
              0.4375 = fieldNorm(doc=3679)
        1.9122196 = weight(author_txt:goetz in 3679) [ClassicSimilarity], result of:
          1.9122196 = score(doc=3679,freq=1.0), product of:
            0.5585182 = queryWeight, product of:
              7.825686 = idf(docFreq=47, maxDocs=44218)
              0.071369864 = queryNorm
            3.4237375 = fieldWeight in 3679, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.825686 = idf(docFreq=47, maxDocs=44218)
              0.4375 = fieldNorm(doc=3679)
        2.2002516 = weight(author_txt:drabenstott in 3679) [ClassicSimilarity], result of:
          2.2002516 = score(doc=3679,freq=1.0), product of:
            0.61328214 = queryWeight, product of:
              1.0478799 = boost
              8.200379 = idf(docFreq=32, maxDocs=44218)
              0.071369864 = queryNorm
            3.587666 = fieldWeight in 3679, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.200379 = idf(docFreq=32, maxDocs=44218)
              0.4375 = fieldNorm(doc=3679)
    
  3. Vizine-Goetz, D.: ¬The Dewey Decimal Classification as an online classification tool (1992) 2.91
    2.9138584 = sum of:
      2.9138584 = product of:
        4.3707876 = sum of:
          2.1853938 = weight(author_txt:vizine in 2115) [ClassicSimilarity], result of:
            2.1853938 = score(doc=2115,freq=1.0), product of:
              0.5585182 = queryWeight, product of:
                7.825686 = idf(docFreq=47, maxDocs=44218)
                0.071369864 = queryNorm
              3.912843 = fieldWeight in 2115, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.825686 = idf(docFreq=47, maxDocs=44218)
                0.5 = fieldNorm(doc=2115)
          2.1853938 = weight(author_txt:goetz in 2115) [ClassicSimilarity], result of:
            2.1853938 = score(doc=2115,freq=1.0), product of:
              0.5585182 = queryWeight, product of:
                7.825686 = idf(docFreq=47, maxDocs=44218)
                0.071369864 = queryNorm
              3.912843 = fieldWeight in 2115, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.825686 = idf(docFreq=47, maxDocs=44218)
                0.5 = fieldNorm(doc=2115)
        0.6666667 = coord(2/3)
    
  4. Vizine-Goetz, D.: Spectrum: a Web-based tool for describing electronic resources (1995) 2.91
    2.9138584 = sum of:
      2.9138584 = product of:
        4.3707876 = sum of:
          2.1853938 = weight(author_txt:vizine in 2163) [ClassicSimilarity], result of:
            2.1853938 = score(doc=2163,freq=1.0), product of:
              0.5585182 = queryWeight, product of:
                7.825686 = idf(docFreq=47, maxDocs=44218)
                0.071369864 = queryNorm
              3.912843 = fieldWeight in 2163, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.825686 = idf(docFreq=47, maxDocs=44218)
                0.5 = fieldNorm(doc=2163)
          2.1853938 = weight(author_txt:goetz in 2163) [ClassicSimilarity], result of:
            2.1853938 = score(doc=2163,freq=1.0), product of:
              0.5585182 = queryWeight, product of:
                7.825686 = idf(docFreq=47, maxDocs=44218)
                0.071369864 = queryNorm
              3.912843 = fieldWeight in 2163, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.825686 = idf(docFreq=47, maxDocs=44218)
                0.5 = fieldNorm(doc=2163)
        0.6666667 = coord(2/3)
    
  5. Vizine-Goetz, D.: Online classification : implications for classifying and document retrieval (1996) 2.91
    2.9138584 = sum of:
      2.9138584 = product of:
        4.3707876 = sum of:
          2.1853938 = weight(author_txt:vizine in 5183) [ClassicSimilarity], result of:
            2.1853938 = score(doc=5183,freq=1.0), product of:
              0.5585182 = queryWeight, product of:
                7.825686 = idf(docFreq=47, maxDocs=44218)
                0.071369864 = queryNorm
              3.912843 = fieldWeight in 5183, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.825686 = idf(docFreq=47, maxDocs=44218)
                0.5 = fieldNorm(doc=5183)
          2.1853938 = weight(author_txt:goetz in 5183) [ClassicSimilarity], result of:
            2.1853938 = score(doc=5183,freq=1.0), product of:
              0.5585182 = queryWeight, product of:
                7.825686 = idf(docFreq=47, maxDocs=44218)
                0.071369864 = queryNorm
              3.912843 = fieldWeight in 5183, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.825686 = idf(docFreq=47, maxDocs=44218)
                0.5 = fieldNorm(doc=5183)
        0.6666667 = coord(2/3)
    

Similar documents (content)

  1. Drabenstott, K.M.: Period subdivisions in the Library of Congress Subject Headings system : some thoughts and recommendations for the future (1992) 0.25
    0.245857 = sum of:
      0.245857 = product of:
        0.76830316 = sum of:
          0.09524501 = weight(abstract_txt:readable in 543) [ClassicSimilarity], result of:
            0.09524501 = score(doc=543,freq=2.0), product of:
              0.16652 = queryWeight, product of:
                1.1312122 = boost
                6.4711404 = idf(docFreq=185, maxDocs=44218)
                0.022747908 = queryNorm
              0.5719734 = fieldWeight in 543, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.4711404 = idf(docFreq=185, maxDocs=44218)
                0.0625 = fieldNorm(doc=543)
          0.020645093 = weight(abstract_txt:using in 543) [ClassicSimilarity], result of:
            0.020645093 = score(doc=543,freq=1.0), product of:
              0.09538267 = queryWeight, product of:
                1.2107671 = boost
                3.4631186 = idf(docFreq=3765, maxDocs=44218)
                0.022747908 = queryNorm
              0.21644491 = fieldWeight in 543, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4631186 = idf(docFreq=3765, maxDocs=44218)
                0.0625 = fieldNorm(doc=543)
          0.07177994 = weight(abstract_txt:limitations in 543) [ClassicSimilarity], result of:
            0.07177994 = score(doc=543,freq=1.0), product of:
              0.21890731 = queryWeight, product of:
                1.8342395 = boost
                5.2464166 = idf(docFreq=632, maxDocs=44218)
                0.022747908 = queryNorm
              0.32790104 = fieldWeight in 543, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2464166 = idf(docFreq=632, maxDocs=44218)
                0.0625 = fieldNorm(doc=543)
          0.16335323 = weight(abstract_txt:recommendations in 543) [ClassicSimilarity], result of:
            0.16335323 = score(doc=543,freq=3.0), product of:
              0.26260498 = queryWeight, product of:
                2.0089881 = boost
                5.746245 = idf(docFreq=383, maxDocs=44218)
                0.022747908 = queryNorm
              0.6220493 = fieldWeight in 543, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.746245 = idf(docFreq=383, maxDocs=44218)
                0.0625 = fieldNorm(doc=543)
          0.03812647 = weight(abstract_txt:system in 543) [ClassicSimilarity], result of:
            0.03812647 = score(doc=543,freq=1.0), product of:
              0.18089196 = queryWeight, product of:
                2.3580365 = boost
                3.3723085 = idf(docFreq=4123, maxDocs=44218)
                0.022747908 = queryNorm
              0.21076928 = fieldWeight in 543, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.3723085 = idf(docFreq=4123, maxDocs=44218)
                0.0625 = fieldNorm(doc=543)
          0.06927734 = weight(abstract_txt:online in 543) [ClassicSimilarity], result of:
            0.06927734 = score(doc=543,freq=2.0), product of:
              0.21378917 = queryWeight, product of:
                2.5635026 = boost
                3.6661522 = idf(docFreq=3073, maxDocs=44218)
                0.022747908 = queryNorm
              0.32404512 = fieldWeight in 543, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.6661522 = idf(docFreq=3073, maxDocs=44218)
                0.0625 = fieldNorm(doc=543)
          0.14415564 = weight(abstract_txt:headings in 543) [ClassicSimilarity], result of:
            0.14415564 = score(doc=543,freq=2.0), product of:
              0.31659186 = queryWeight, product of:
                2.7016022 = boost
                5.1515374 = idf(docFreq=695, maxDocs=44218)
                0.022747908 = queryNorm
              0.4553359 = fieldWeight in 543, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.1515374 = idf(docFreq=695, maxDocs=44218)
                0.0625 = fieldNorm(doc=543)
          0.1657205 = weight(abstract_txt:subject in 543) [ClassicSimilarity], result of:
            0.1657205 = score(doc=543,freq=5.0), product of:
              0.30350488 = queryWeight, product of:
                3.414906 = boost
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.022747908 = queryNorm
              0.5460225 = fieldWeight in 543, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.0625 = fieldNorm(doc=543)
        0.32 = coord(8/25)
    
  2. Drabenstott, K.M.: ¬The need for machine-readable authority records for topical subdivisions (1992) 0.22
    0.22099416 = sum of:
      0.22099416 = product of:
        0.92080903 = sum of:
          0.10102259 = weight(abstract_txt:readable in 1503) [ClassicSimilarity], result of:
            0.10102259 = score(doc=1503,freq=1.0), product of:
              0.16652 = queryWeight, product of:
                1.1312122 = boost
                6.4711404 = idf(docFreq=185, maxDocs=44218)
                0.022747908 = queryNorm
              0.6066694 = fieldWeight in 1503, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.4711404 = idf(docFreq=185, maxDocs=44218)
                0.09375 = fieldNorm(doc=1503)
          0.107669905 = weight(abstract_txt:limitations in 1503) [ClassicSimilarity], result of:
            0.107669905 = score(doc=1503,freq=1.0), product of:
              0.21890731 = queryWeight, product of:
                1.8342395 = boost
                5.2464166 = idf(docFreq=632, maxDocs=44218)
                0.022747908 = queryNorm
              0.49185157 = fieldWeight in 1503, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2464166 = idf(docFreq=632, maxDocs=44218)
                0.09375 = fieldNorm(doc=1503)
          0.20006603 = weight(abstract_txt:recommendations in 1503) [ClassicSimilarity], result of:
            0.20006603 = score(doc=1503,freq=2.0), product of:
              0.26260498 = queryWeight, product of:
                2.0089881 = boost
                5.746245 = idf(docFreq=383, maxDocs=44218)
                0.022747908 = queryNorm
              0.7618516 = fieldWeight in 1503, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.746245 = idf(docFreq=383, maxDocs=44218)
                0.09375 = fieldNorm(doc=1503)
          0.07347972 = weight(abstract_txt:online in 1503) [ClassicSimilarity], result of:
            0.07347972 = score(doc=1503,freq=1.0), product of:
              0.21378917 = queryWeight, product of:
                2.5635026 = boost
                3.6661522 = idf(docFreq=3073, maxDocs=44218)
                0.022747908 = queryNorm
              0.34370178 = fieldWeight in 1503, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6661522 = idf(docFreq=3073, maxDocs=44218)
                0.09375 = fieldNorm(doc=1503)
          0.21623346 = weight(abstract_txt:headings in 1503) [ClassicSimilarity], result of:
            0.21623346 = score(doc=1503,freq=2.0), product of:
              0.31659186 = queryWeight, product of:
                2.7016022 = boost
                5.1515374 = idf(docFreq=695, maxDocs=44218)
                0.022747908 = queryNorm
              0.68300384 = fieldWeight in 1503, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.1515374 = idf(docFreq=695, maxDocs=44218)
                0.09375 = fieldNorm(doc=1503)
          0.22233737 = weight(abstract_txt:subject in 1503) [ClassicSimilarity], result of:
            0.22233737 = score(doc=1503,freq=4.0), product of:
              0.30350488 = queryWeight, product of:
                3.414906 = boost
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.022747908 = queryNorm
              0.732566 = fieldWeight in 1503, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.09375 = fieldNorm(doc=1503)
        0.24 = coord(6/25)
    
  3. Larson, R.R.: Evaluation of advanced retrieval techniques in an experimental online catalog (1992) 0.21
    0.20823522 = sum of:
      0.20823522 = product of:
        0.6507351 = sum of:
          0.058157396 = weight(abstract_txt:files in 481) [ClassicSimilarity], result of:
            0.058157396 = score(doc=481,freq=1.0), product of:
              0.13013023 = queryWeight, product of:
                5.720536 = idf(docFreq=393, maxDocs=44218)
                0.022747908 = queryNorm
              0.44691688 = fieldWeight in 481, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.720536 = idf(docFreq=393, maxDocs=44218)
                0.078125 = fieldNorm(doc=481)
          0.069331765 = weight(abstract_txt:catalogs in 481) [ClassicSimilarity], result of:
            0.069331765 = score(doc=481,freq=1.0), product of:
              0.1463063 = queryWeight, product of:
                1.0603334 = boost
                6.0656753 = idf(docFreq=278, maxDocs=44218)
                0.022747908 = queryNorm
              0.4738809 = fieldWeight in 481, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0656753 = idf(docFreq=278, maxDocs=44218)
                0.078125 = fieldNorm(doc=481)
          0.025806367 = weight(abstract_txt:using in 481) [ClassicSimilarity], result of:
            0.025806367 = score(doc=481,freq=1.0), product of:
              0.09538267 = queryWeight, product of:
                1.2107671 = boost
                3.4631186 = idf(docFreq=3765, maxDocs=44218)
                0.022747908 = queryNorm
              0.27055615 = fieldWeight in 481, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4631186 = idf(docFreq=3765, maxDocs=44218)
                0.078125 = fieldNorm(doc=481)
          0.03474528 = weight(abstract_txt:describes in 481) [ClassicSimilarity], result of:
            0.03474528 = score(doc=481,freq=1.0), product of:
              0.116300635 = queryWeight, product of:
                1.3369554 = boost
                3.8240511 = idf(docFreq=2624, maxDocs=44218)
                0.022747908 = queryNorm
              0.298754 = fieldWeight in 481, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.8240511 = idf(docFreq=2624, maxDocs=44218)
                0.078125 = fieldNorm(doc=481)
          0.0677475 = weight(abstract_txt:retrieval in 481) [ClassicSimilarity], result of:
            0.0677475 = score(doc=481,freq=3.0), product of:
              0.14406896 = queryWeight, product of:
                1.8224547 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.022747908 = queryNorm
              0.47024357 = fieldWeight in 481, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.078125 = fieldNorm(doc=481)
          0.047658082 = weight(abstract_txt:system in 481) [ClassicSimilarity], result of:
            0.047658082 = score(doc=481,freq=1.0), product of:
              0.18089196 = queryWeight, product of:
                2.3580365 = boost
                3.3723085 = idf(docFreq=4123, maxDocs=44218)
                0.022747908 = queryNorm
              0.2634616 = fieldWeight in 481, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.3723085 = idf(docFreq=4123, maxDocs=44218)
                0.078125 = fieldNorm(doc=481)
          0.16200754 = weight(abstract_txt:online in 481) [ClassicSimilarity], result of:
            0.16200754 = score(doc=481,freq=7.0), product of:
              0.21378917 = queryWeight, product of:
                2.5635026 = boost
                3.6661522 = idf(docFreq=3073, maxDocs=44218)
                0.022747908 = queryNorm
              0.75779116 = fieldWeight in 481, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                3.6661522 = idf(docFreq=3073, maxDocs=44218)
                0.078125 = fieldNorm(doc=481)
          0.18528113 = weight(abstract_txt:subject in 481) [ClassicSimilarity], result of:
            0.18528113 = score(doc=481,freq=4.0), product of:
              0.30350488 = queryWeight, product of:
                3.414906 = boost
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.022747908 = queryNorm
              0.61047167 = fieldWeight in 481, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.078125 = fieldNorm(doc=481)
        0.32 = coord(8/25)
    
  4. Drabenstott, K.M.: Experiences with online catalogs in the USA using a classification system as a subject searching tool (1990) 0.19
    0.19262809 = sum of:
      0.19262809 = product of:
        0.802617 = sum of:
          0.097064465 = weight(abstract_txt:catalogs in 4786) [ClassicSimilarity], result of:
            0.097064465 = score(doc=4786,freq=1.0), product of:
              0.1463063 = queryWeight, product of:
                1.0603334 = boost
                6.0656753 = idf(docFreq=278, maxDocs=44218)
                0.022747908 = queryNorm
              0.66343325 = fieldWeight in 4786, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0656753 = idf(docFreq=278, maxDocs=44218)
                0.109375 = fieldNorm(doc=4786)
          0.16667877 = weight(abstract_txt:readable in 4786) [ClassicSimilarity], result of:
            0.16667877 = score(doc=4786,freq=2.0), product of:
              0.16652 = queryWeight, product of:
                1.1312122 = boost
                6.4711404 = idf(docFreq=185, maxDocs=44218)
                0.022747908 = queryNorm
              1.0009534 = fieldWeight in 4786, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.4711404 = idf(docFreq=185, maxDocs=44218)
                0.109375 = fieldNorm(doc=4786)
          0.12962106 = weight(abstract_txt:tables in 4786) [ClassicSimilarity], result of:
            0.12962106 = score(doc=4786,freq=1.0), product of:
              0.17742163 = queryWeight, product of:
                1.167654 = boost
                6.6796074 = idf(docFreq=150, maxDocs=44218)
                0.022747908 = queryNorm
              0.73058206 = fieldWeight in 4786, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.6796074 = idf(docFreq=150, maxDocs=44218)
                0.109375 = fieldNorm(doc=4786)
          0.036128912 = weight(abstract_txt:using in 4786) [ClassicSimilarity], result of:
            0.036128912 = score(doc=4786,freq=1.0), product of:
              0.09538267 = queryWeight, product of:
                1.2107671 = boost
                3.4631186 = idf(docFreq=3765, maxDocs=44218)
                0.022747908 = queryNorm
              0.37877858 = fieldWeight in 4786, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4631186 = idf(docFreq=3765, maxDocs=44218)
                0.109375 = fieldNorm(doc=4786)
          0.14848237 = weight(abstract_txt:online in 4786) [ClassicSimilarity], result of:
            0.14848237 = score(doc=4786,freq=3.0), product of:
              0.21378917 = queryWeight, product of:
                2.5635026 = boost
                3.6661522 = idf(docFreq=3073, maxDocs=44218)
                0.022747908 = queryNorm
              0.6945271 = fieldWeight in 4786, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.6661522 = idf(docFreq=3073, maxDocs=44218)
                0.109375 = fieldNorm(doc=4786)
          0.22464143 = weight(abstract_txt:subject in 4786) [ClassicSimilarity], result of:
            0.22464143 = score(doc=4786,freq=3.0), product of:
              0.30350488 = queryWeight, product of:
                3.414906 = boost
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.022747908 = queryNorm
              0.74015754 = fieldWeight in 4786, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.109375 = fieldNorm(doc=4786)
        0.24 = coord(6/25)
    
  5. Markey, K.: Alphabetical searching in an online catalog (1989) 0.19
    0.19243427 = sum of:
      0.19243427 = product of:
        0.80180943 = sum of:
          0.110930815 = weight(abstract_txt:catalogs in 886) [ClassicSimilarity], result of:
            0.110930815 = score(doc=886,freq=1.0), product of:
              0.1463063 = queryWeight, product of:
                1.0603334 = boost
                6.0656753 = idf(docFreq=278, maxDocs=44218)
                0.022747908 = queryNorm
              0.7582094 = fieldWeight in 886, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0656753 = idf(docFreq=278, maxDocs=44218)
                0.125 = fieldNorm(doc=886)
          0.06258246 = weight(abstract_txt:retrieval in 886) [ClassicSimilarity], result of:
            0.06258246 = score(doc=886,freq=1.0), product of:
              0.14406896 = queryWeight, product of:
                1.8224547 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.022747908 = queryNorm
              0.43439242 = fieldWeight in 886, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.125 = fieldNorm(doc=886)
          0.07625294 = weight(abstract_txt:system in 886) [ClassicSimilarity], result of:
            0.07625294 = score(doc=886,freq=1.0), product of:
              0.18089196 = queryWeight, product of:
                2.3580365 = boost
                3.3723085 = idf(docFreq=4123, maxDocs=44218)
                0.022747908 = queryNorm
              0.42153856 = fieldWeight in 886, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.3723085 = idf(docFreq=4123, maxDocs=44218)
                0.125 = fieldNorm(doc=886)
          0.13855468 = weight(abstract_txt:online in 886) [ClassicSimilarity], result of:
            0.13855468 = score(doc=886,freq=2.0), product of:
              0.21378917 = queryWeight, product of:
                2.5635026 = boost
                3.6661522 = idf(docFreq=3073, maxDocs=44218)
                0.022747908 = queryNorm
              0.64809024 = fieldWeight in 886, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.6661522 = idf(docFreq=3073, maxDocs=44218)
                0.125 = fieldNorm(doc=886)
          0.20386685 = weight(abstract_txt:headings in 886) [ClassicSimilarity], result of:
            0.20386685 = score(doc=886,freq=1.0), product of:
              0.31659186 = queryWeight, product of:
                2.7016022 = boost
                5.1515374 = idf(docFreq=695, maxDocs=44218)
                0.022747908 = queryNorm
              0.6439422 = fieldWeight in 886, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.1515374 = idf(docFreq=695, maxDocs=44218)
                0.125 = fieldNorm(doc=886)
          0.20962167 = weight(abstract_txt:subject in 886) [ClassicSimilarity], result of:
            0.20962167 = score(doc=886,freq=2.0), product of:
              0.30350488 = queryWeight, product of:
                3.414906 = boost
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.022747908 = queryNorm
              0.69066983 = fieldWeight in 886, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.125 = fieldNorm(doc=886)
        0.24 = coord(6/25)