Document (#2432)

Author
Drabenstott, K.M.
Vizine-Goetz, D.
Title
Search trees for subject searching in online catalogs
Source
Library hi tech. 8(1990) no.3, S.7-20
Year
1990
Theme
OPAC

Similar documents (author)

  1. Vizine-Goetz, D.; Drabenstott, K.M.: Computer and manual analysis of subject terms entered by online catalog users (1991) 6.00
    5.9989285 = sum of:
      5.9989285 = sum of:
        1.9036268 = weight(author_txt:goetz in 3679) [ClassicSimilarity], result of:
          1.9036268 = score(doc=3679,freq=1.0), product of:
            0.55843437 = queryWeight, product of:
              7.7916894 = idf(docFreq=47, maxDocs=42740)
              0.07167051 = queryNorm
            3.408864 = fieldWeight in 3679, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.7916894 = idf(docFreq=47, maxDocs=42740)
              0.4375 = fieldNorm(doc=3679)
        1.9036268 = weight(author_txt:vizine in 3679) [ClassicSimilarity], result of:
          1.9036268 = score(doc=3679,freq=1.0), product of:
            0.55843437 = queryWeight, product of:
              7.7916894 = idf(docFreq=47, maxDocs=42740)
              0.07167051 = queryNorm
            3.408864 = fieldWeight in 3679, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.7916894 = idf(docFreq=47, maxDocs=42740)
              0.4375 = fieldNorm(doc=3679)
        2.191675 = weight(author_txt:drabenstott in 3679) [ClassicSimilarity], result of:
          2.191675 = score(doc=3679,freq=1.0), product of:
            0.61343473 = queryWeight, product of:
              1.0480889 = boost
              8.166383 = idf(docFreq=32, maxDocs=42740)
              0.07167051 = queryNorm
            3.5727925 = fieldWeight in 3679, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.166383 = idf(docFreq=32, maxDocs=42740)
              0.4375 = fieldNorm(doc=3679)
    
  2. Drabenstott, K.M.; Vizine-Goetz, D.: Using subject headings for online retrieval : theory, practice and potential (1994) 6.00
    5.9989285 = sum of:
      5.9989285 = sum of:
        1.9036268 = weight(author_txt:goetz in 387) [ClassicSimilarity], result of:
          1.9036268 = score(doc=387,freq=1.0), product of:
            0.55843437 = queryWeight, product of:
              7.7916894 = idf(docFreq=47, maxDocs=42740)
              0.07167051 = queryNorm
            3.408864 = fieldWeight in 387, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.7916894 = idf(docFreq=47, maxDocs=42740)
              0.4375 = fieldNorm(doc=387)
        1.9036268 = weight(author_txt:vizine in 387) [ClassicSimilarity], result of:
          1.9036268 = score(doc=387,freq=1.0), product of:
            0.55843437 = queryWeight, product of:
              7.7916894 = idf(docFreq=47, maxDocs=42740)
              0.07167051 = queryNorm
            3.408864 = fieldWeight in 387, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.7916894 = idf(docFreq=47, maxDocs=42740)
              0.4375 = fieldNorm(doc=387)
        2.191675 = weight(author_txt:drabenstott in 387) [ClassicSimilarity], result of:
          2.191675 = score(doc=387,freq=1.0), product of:
            0.61343473 = queryWeight, product of:
              1.0480889 = boost
              8.166383 = idf(docFreq=32, maxDocs=42740)
              0.07167051 = queryNorm
            3.5727925 = fieldWeight in 387, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.166383 = idf(docFreq=32, maxDocs=42740)
              0.4375 = fieldNorm(doc=387)
    
  3. Vizine-Goetz, D.: ¬The Dewey Decimal Classification as an online classification tool (1992) 2.90
    2.900765 = sum of:
      2.900765 = product of:
        4.351147 = sum of:
          2.1755736 = weight(author_txt:goetz in 2115) [ClassicSimilarity], result of:
            2.1755736 = score(doc=2115,freq=1.0), product of:
              0.55843437 = queryWeight, product of:
                7.7916894 = idf(docFreq=47, maxDocs=42740)
                0.07167051 = queryNorm
              3.8958447 = fieldWeight in 2115, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.7916894 = idf(docFreq=47, maxDocs=42740)
                0.5 = fieldNorm(doc=2115)
          2.1755736 = weight(author_txt:vizine in 2115) [ClassicSimilarity], result of:
            2.1755736 = score(doc=2115,freq=1.0), product of:
              0.55843437 = queryWeight, product of:
                7.7916894 = idf(docFreq=47, maxDocs=42740)
                0.07167051 = queryNorm
              3.8958447 = fieldWeight in 2115, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.7916894 = idf(docFreq=47, maxDocs=42740)
                0.5 = fieldNorm(doc=2115)
        0.6666667 = coord(2/3)
    
  4. Vizine-Goetz, D.: Spectrum: a Web-based tool for describing electronic resources (1995) 2.90
    2.900765 = sum of:
      2.900765 = product of:
        4.351147 = sum of:
          2.1755736 = weight(author_txt:goetz in 2232) [ClassicSimilarity], result of:
            2.1755736 = score(doc=2232,freq=1.0), product of:
              0.55843437 = queryWeight, product of:
                7.7916894 = idf(docFreq=47, maxDocs=42740)
                0.07167051 = queryNorm
              3.8958447 = fieldWeight in 2232, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.7916894 = idf(docFreq=47, maxDocs=42740)
                0.5 = fieldNorm(doc=2232)
          2.1755736 = weight(author_txt:vizine in 2232) [ClassicSimilarity], result of:
            2.1755736 = score(doc=2232,freq=1.0), product of:
              0.55843437 = queryWeight, product of:
                7.7916894 = idf(docFreq=47, maxDocs=42740)
                0.07167051 = queryNorm
              3.8958447 = fieldWeight in 2232, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.7916894 = idf(docFreq=47, maxDocs=42740)
                0.5 = fieldNorm(doc=2232)
        0.6666667 = coord(2/3)
    
  5. Vizine-Goetz, D.: Online classification : implications for classifying and document retrieval (1996) 2.90
    2.900765 = sum of:
      2.900765 = product of:
        4.351147 = sum of:
          2.1755736 = weight(author_txt:goetz in 5252) [ClassicSimilarity], result of:
            2.1755736 = score(doc=5252,freq=1.0), product of:
              0.55843437 = queryWeight, product of:
                7.7916894 = idf(docFreq=47, maxDocs=42740)
                0.07167051 = queryNorm
              3.8958447 = fieldWeight in 5252, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.7916894 = idf(docFreq=47, maxDocs=42740)
                0.5 = fieldNorm(doc=5252)
          2.1755736 = weight(author_txt:vizine in 5252) [ClassicSimilarity], result of:
            2.1755736 = score(doc=5252,freq=1.0), product of:
              0.55843437 = queryWeight, product of:
                7.7916894 = idf(docFreq=47, maxDocs=42740)
                0.07167051 = queryNorm
              3.8958447 = fieldWeight in 5252, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.7916894 = idf(docFreq=47, maxDocs=42740)
                0.5 = fieldNorm(doc=5252)
        0.6666667 = coord(2/3)
    

Similar documents (content)

  1. Drabenstott, K.M.; Weller, M.S.: Testing a new design for subject searching in online catalogs (1994) 1.81
    1.806459 = sum of:
      1.806459 = sum of:
        0.100258715 = weight(abstract_txt:search in 7716) [ClassicSimilarity], result of:
          0.100258715 = score(doc=7716,freq=2.0), product of:
            0.17750621 = queryWeight, product of:
              3.6515355 = idf(docFreq=3014, maxDocs=42740)
              0.048611388 = queryNorm
            0.5648181 = fieldWeight in 7716, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.6515355 = idf(docFreq=3014, maxDocs=42740)
              0.109375 = fieldNorm(doc=7716)
        0.10226281 = weight(abstract_txt:online in 7716) [ClassicSimilarity], result of:
          0.10226281 = score(doc=7716,freq=2.0), product of:
            0.17986389 = queryWeight, product of:
              1.0066192 = boost
              3.6757057 = idf(docFreq=2942, maxDocs=42740)
              0.048611388 = queryNorm
            0.56855667 = fieldWeight in 7716, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.6757057 = idf(docFreq=2942, maxDocs=42740)
              0.109375 = fieldNorm(doc=7716)
        0.17409356 = weight(abstract_txt:subject in 7716) [ClassicSimilarity], result of:
          0.17409356 = score(doc=7716,freq=4.0), product of:
            0.20353726 = queryWeight, product of:
              1.0708169 = boost
              3.9101257 = idf(docFreq=2327, maxDocs=42740)
              0.048611388 = queryNorm
            0.85534 = fieldWeight in 7716, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.9101257 = idf(docFreq=2327, maxDocs=42740)
              0.109375 = fieldNorm(doc=7716)
        0.1960416 = weight(abstract_txt:searching in 7716) [ClassicSimilarity], result of:
          0.1960416 = score(doc=7716,freq=3.0), product of:
            0.24247512 = queryWeight, product of:
              1.168764 = boost
              4.267783 = idf(docFreq=1627, maxDocs=42740)
              0.048611388 = queryNorm
            0.8085019 = fieldWeight in 7716, product of:
              1.7320508 = tf(freq=3.0), with freq of:
                3.0 = termFreq=3.0
              4.267783 = idf(docFreq=1627, maxDocs=42740)
              0.109375 = fieldNorm(doc=7716)
        0.3289955 = weight(abstract_txt:catalogs in 7716) [ClassicSimilarity], result of:
          0.3289955 = score(doc=7716,freq=1.0), product of:
            0.49385798 = queryWeight, product of:
              1.6679932 = boost
              6.0907364 = idf(docFreq=262, maxDocs=42740)
              0.048611388 = queryNorm
            0.6661743 = fieldWeight in 7716, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.0907364 = idf(docFreq=262, maxDocs=42740)
              0.109375 = fieldNorm(doc=7716)
        0.9048068 = weight(abstract_txt:trees in 7716) [ClassicSimilarity], result of:
          0.9048068 = score(doc=7716,freq=2.0), product of:
            0.7694304 = queryWeight, product of:
              2.0819864 = boost
              7.6024475 = idf(docFreq=57, maxDocs=42740)
              0.048611388 = queryNorm
            1.1759436 = fieldWeight in 7716, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              7.6024475 = idf(docFreq=57, maxDocs=42740)
              0.109375 = fieldNorm(doc=7716)
    
  2. Drabenstott, K.M.: Enhancing a new design for subject access to online catalogs (1996) 1.18
    1.1804745 = sum of:
      1.1804745 = product of:
        1.4165695 = sum of:
          0.11323068 = weight(abstract_txt:search in 5622) [ClassicSimilarity], result of:
            0.11323068 = score(doc=5622,freq=5.0), product of:
              0.17750621 = queryWeight, product of:
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.048611388 = queryNorm
              0.637897 = fieldWeight in 5622, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.078125 = fieldNorm(doc=5622)
          0.10330105 = weight(abstract_txt:online in 5622) [ClassicSimilarity], result of:
            0.10330105 = score(doc=5622,freq=4.0), product of:
              0.17986389 = queryWeight, product of:
                1.0066192 = boost
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.048611388 = queryNorm
              0.574329 = fieldWeight in 5622, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.078125 = fieldNorm(doc=5622)
          0.12435254 = weight(abstract_txt:subject in 5622) [ClassicSimilarity], result of:
            0.12435254 = score(doc=5622,freq=4.0), product of:
              0.20353726 = queryWeight, product of:
                1.0708169 = boost
                3.9101257 = idf(docFreq=2327, maxDocs=42740)
                0.048611388 = queryNorm
              0.61095715 = fieldWeight in 5622, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.9101257 = idf(docFreq=2327, maxDocs=42740)
                0.078125 = fieldNorm(doc=5622)
          0.1616924 = weight(abstract_txt:searching in 5622) [ClassicSimilarity], result of:
            0.1616924 = score(doc=5622,freq=4.0), product of:
              0.24247512 = queryWeight, product of:
                1.168764 = boost
                4.267783 = idf(docFreq=1627, maxDocs=42740)
                0.048611388 = queryNorm
              0.66684115 = fieldWeight in 5622, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.267783 = idf(docFreq=1627, maxDocs=42740)
                0.078125 = fieldNorm(doc=5622)
          0.9139928 = weight(abstract_txt:trees in 5622) [ClassicSimilarity], result of:
            0.9139928 = score(doc=5622,freq=4.0), product of:
              0.7694304 = queryWeight, product of:
                2.0819864 = boost
                7.6024475 = idf(docFreq=57, maxDocs=42740)
                0.048611388 = queryNorm
              1.1878824 = fieldWeight in 5622, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                7.6024475 = idf(docFreq=57, maxDocs=42740)
                0.078125 = fieldNorm(doc=5622)
        0.8333333 = coord(5/6)
    
  3. Drabenstott, K.M.; Cochrane, P.A.: Improvements needed for better subject access to library catalogs via the Internet (1994) 1.04
    1.0439252 = sum of:
      1.0439252 = product of:
        1.2527102 = sum of:
          0.08102128 = weight(abstract_txt:search in 486) [ClassicSimilarity], result of:
            0.08102128 = score(doc=486,freq=1.0), product of:
              0.17750621 = queryWeight, product of:
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.048611388 = queryNorm
              0.45644194 = fieldWeight in 486, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.125 = fieldNorm(doc=486)
          0.11687179 = weight(abstract_txt:online in 486) [ClassicSimilarity], result of:
            0.11687179 = score(doc=486,freq=2.0), product of:
              0.17986389 = queryWeight, product of:
                1.0066192 = boost
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.048611388 = queryNorm
              0.6497791 = fieldWeight in 486, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.125 = fieldNorm(doc=486)
          0.14068884 = weight(abstract_txt:subject in 486) [ClassicSimilarity], result of:
            0.14068884 = score(doc=486,freq=2.0), product of:
              0.20353726 = queryWeight, product of:
                1.0708169 = boost
                3.9101257 = idf(docFreq=2327, maxDocs=42740)
                0.048611388 = queryNorm
              0.6912191 = fieldWeight in 486, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.9101257 = idf(docFreq=2327, maxDocs=42740)
                0.125 = fieldNorm(doc=486)
          0.18293405 = weight(abstract_txt:searching in 486) [ClassicSimilarity], result of:
            0.18293405 = score(doc=486,freq=2.0), product of:
              0.24247512 = queryWeight, product of:
                1.168764 = boost
                4.267783 = idf(docFreq=1627, maxDocs=42740)
                0.048611388 = queryNorm
              0.7544446 = fieldWeight in 486, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.267783 = idf(docFreq=1627, maxDocs=42740)
                0.125 = fieldNorm(doc=486)
          0.73119426 = weight(abstract_txt:trees in 486) [ClassicSimilarity], result of:
            0.73119426 = score(doc=486,freq=1.0), product of:
              0.7694304 = queryWeight, product of:
                2.0819864 = boost
                7.6024475 = idf(docFreq=57, maxDocs=42740)
                0.048611388 = queryNorm
              0.95030594 = fieldWeight in 486, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.6024475 = idf(docFreq=57, maxDocs=42740)
                0.125 = fieldNorm(doc=486)
        0.8333333 = coord(5/6)
    
  4. Drabenstott, K.M.; Weller, M.S.: Failure analysis of subject searches in a test of a new design for subject access to online catalogs (1996) 0.76
    0.75732076 = sum of:
      0.75732076 = product of:
        0.9087849 = sum of:
          0.07016648 = weight(abstract_txt:search in 4451) [ClassicSimilarity], result of:
            0.07016648 = score(doc=4451,freq=3.0), product of:
              0.17750621 = queryWeight, product of:
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.048611388 = queryNorm
              0.39529032 = fieldWeight in 4451, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.0625 = fieldNorm(doc=4451)
          0.041320417 = weight(abstract_txt:online in 4451) [ClassicSimilarity], result of:
            0.041320417 = score(doc=4451,freq=1.0), product of:
              0.17986389 = queryWeight, product of:
                1.0066192 = boost
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.048611388 = queryNorm
              0.2297316 = fieldWeight in 4451, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.0625 = fieldNorm(doc=4451)
          0.12184011 = weight(abstract_txt:subject in 4451) [ClassicSimilarity], result of:
            0.12184011 = score(doc=4451,freq=6.0), product of:
              0.20353726 = queryWeight, product of:
                1.0708169 = boost
                3.9101257 = idf(docFreq=2327, maxDocs=42740)
                0.048611388 = queryNorm
              0.5986133 = fieldWeight in 4451, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.9101257 = idf(docFreq=2327, maxDocs=42740)
                0.0625 = fieldNorm(doc=4451)
          0.15842554 = weight(abstract_txt:searching in 4451) [ClassicSimilarity], result of:
            0.15842554 = score(doc=4451,freq=6.0), product of:
              0.24247512 = queryWeight, product of:
                1.168764 = boost
                4.267783 = idf(docFreq=1627, maxDocs=42740)
                0.048611388 = queryNorm
              0.65336823 = fieldWeight in 4451, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                4.267783 = idf(docFreq=1627, maxDocs=42740)
                0.0625 = fieldNorm(doc=4451)
          0.5170324 = weight(abstract_txt:trees in 4451) [ClassicSimilarity], result of:
            0.5170324 = score(doc=4451,freq=2.0), product of:
              0.7694304 = queryWeight, product of:
                2.0819864 = boost
                7.6024475 = idf(docFreq=57, maxDocs=42740)
                0.048611388 = queryNorm
              0.67196774 = fieldWeight in 4451, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.6024475 = idf(docFreq=57, maxDocs=42740)
                0.0625 = fieldNorm(doc=4451)
        0.8333333 = coord(5/6)
    
  5. Drabenstott, K.M.: Experiences with online catalogs in the USA using a classification system as a subject searching tool (1990) 0.73
    0.7266216 = sum of:
      0.7266216 = product of:
        0.871946 = sum of:
          0.07089362 = weight(abstract_txt:search in 4786) [ClassicSimilarity], result of:
            0.07089362 = score(doc=4786,freq=1.0), product of:
              0.17750621 = queryWeight, product of:
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.048611388 = queryNorm
              0.3993867 = fieldWeight in 4786, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.109375 = fieldNorm(doc=4786)
          0.12524587 = weight(abstract_txt:online in 4786) [ClassicSimilarity], result of:
            0.12524587 = score(doc=4786,freq=3.0), product of:
              0.17986389 = queryWeight, product of:
                1.0066192 = boost
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.048611388 = queryNorm
              0.6963369 = fieldWeight in 4786, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.6757057 = idf(docFreq=2942, maxDocs=42740)
                0.109375 = fieldNorm(doc=4786)
          0.15076944 = weight(abstract_txt:subject in 4786) [ClassicSimilarity], result of:
            0.15076944 = score(doc=4786,freq=3.0), product of:
              0.20353726 = queryWeight, product of:
                1.0708169 = boost
                3.9101257 = idf(docFreq=2327, maxDocs=42740)
                0.048611388 = queryNorm
              0.74074614 = fieldWeight in 4786, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.9101257 = idf(docFreq=2327, maxDocs=42740)
                0.109375 = fieldNorm(doc=4786)
          0.1960416 = weight(abstract_txt:searching in 4786) [ClassicSimilarity], result of:
            0.1960416 = score(doc=4786,freq=3.0), product of:
              0.24247512 = queryWeight, product of:
                1.168764 = boost
                4.267783 = idf(docFreq=1627, maxDocs=42740)
                0.048611388 = queryNorm
              0.8085019 = fieldWeight in 4786, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.267783 = idf(docFreq=1627, maxDocs=42740)
                0.109375 = fieldNorm(doc=4786)
          0.3289955 = weight(abstract_txt:catalogs in 4786) [ClassicSimilarity], result of:
            0.3289955 = score(doc=4786,freq=1.0), product of:
              0.49385798 = queryWeight, product of:
                1.6679932 = boost
                6.0907364 = idf(docFreq=262, maxDocs=42740)
                0.048611388 = queryNorm
              0.6661743 = fieldWeight in 4786, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0907364 = idf(docFreq=262, maxDocs=42740)
                0.109375 = fieldNorm(doc=4786)
        0.8333333 = coord(5/6)