Document (#18928)

Author
Danskin, A.
Title
¬The retrospective conversion of the British Library catalogue of printed books
Source
International cataloguing and bibliographic control. 26(1997) no.4, S.90-91
Year
1997
Abstract
The conversion of the British Library Catalogue of Printed Books (to 1975), took place between 1987 and 1991. This conversion, unique in size and scope, posed problems which were not easily addressed by conventional conversion techniques. Summarises the decisions taken to resolve these problems, the methodology by which conversion was successfully achieved and considers the importance of these initial conditions in the subsequent development of the catalogue
Footnote
Paper given at the workshop on retrospective conversion IFLA, Beijing, 29 Aug 1996
Object
BLC to '75
Location
GB

Similar documents (author)

  1. Danskin, A.: ¬A world turned upside down (1993) 5.44
    5.4410844 = sum of:
      5.4410844 = weight(author_txt:danskin in 7798) [ClassicSimilarity], result of:
        5.4410844 = fieldWeight in 7798, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.705735 = idf(docFreq=19, maxDocs=44421)
          0.625 = fieldNorm(doc=7798)
    
  2. Danskin, A.: Better, faster, cheaper cataloguing! (1995) 5.44
    5.4410844 = sum of:
      5.4410844 = weight(author_txt:danskin in 3883) [ClassicSimilarity], result of:
        5.4410844 = fieldWeight in 3883, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.705735 = idf(docFreq=19, maxDocs=44421)
          0.625 = fieldNorm(doc=3883)
    
  3. Danskin, W.: ¬Le fichier d'autorités Anglo-American : un projet a maturité? (1996) 5.44
    5.4410844 = sum of:
      5.4410844 = weight(author_txt:danskin in 5832) [ClassicSimilarity], result of:
        5.4410844 = fieldWeight in 5832, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.705735 = idf(docFreq=19, maxDocs=44421)
          0.625 = fieldNorm(doc=5832)
    
  4. Danskin, A.: ¬The Anglo-American Authority File : an idea whose time has come? (1996) 5.44
    5.4410844 = sum of:
      5.4410844 = weight(author_txt:danskin in 6137) [ClassicSimilarity], result of:
        5.4410844 = fieldWeight in 6137, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.705735 = idf(docFreq=19, maxDocs=44421)
          0.625 = fieldNorm(doc=6137)
    
  5. Danskin, A.: ¬A declaration of inter-dependence (1996) 5.44
    5.4410844 = sum of:
      5.4410844 = weight(author_txt:danskin in 261) [ClassicSimilarity], result of:
        5.4410844 = fieldWeight in 261, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.705735 = idf(docFreq=19, maxDocs=44421)
          0.625 = fieldNorm(doc=261)
    

Similar documents (content)

  1. Lealand, C.: Production of the CD-ROM version of the British Library Catalogue (1989) 0.46
    0.45651916 = sum of:
      0.45651916 = product of:
        1.4266224 = sum of:
          0.023042534 = weight(abstract_txt:library in 3589) [ClassicSimilarity], result of:
            0.023042534 = score(doc=3589,freq=1.0), product of:
              0.06606528 = queryWeight, product of:
                1.0944116 = boost
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.018930135 = queryNorm
              0.3487843 = fieldWeight in 3589, 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=3589)
          0.10221897 = weight(abstract_txt:subsequent in 3589) [ClassicSimilarity], result of:
            0.10221897 = score(doc=3589,freq=1.0), product of:
              0.14156769 = queryWeight, product of:
                1.1328206 = boost
                6.601601 = idf(docFreq=163, maxDocs=44421)
                0.018930135 = queryNorm
              0.72205013 = fieldWeight in 3589, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.601601 = idf(docFreq=163, maxDocs=44421)
                0.109375 = fieldNorm(doc=3589)
          0.16923021 = weight(abstract_txt:1975 in 3589) [ClassicSimilarity], result of:
            0.16923021 = score(doc=3589,freq=1.0), product of:
              0.19812004 = queryWeight, product of:
                1.3401188 = boost
                7.809647 = idf(docFreq=48, maxDocs=44421)
                0.018930135 = queryNorm
              0.85418016 = fieldWeight in 3589, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.809647 = idf(docFreq=48, maxDocs=44421)
                0.109375 = fieldNorm(doc=3589)
          0.10106432 = weight(abstract_txt:books in 3589) [ClassicSimilarity], result of:
            0.10106432 = score(doc=3589,freq=1.0), product of:
              0.17701839 = queryWeight, product of:
                1.7914441 = boost
                5.2198906 = idf(docFreq=652, maxDocs=44421)
                0.018930135 = queryNorm
              0.57092553 = fieldWeight in 3589, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2198906 = idf(docFreq=652, maxDocs=44421)
                0.109375 = fieldNorm(doc=3589)
          0.20475078 = weight(abstract_txt:printed in 3589) [ClassicSimilarity], result of:
            0.20475078 = score(doc=3589,freq=2.0), product of:
              0.2249539 = queryWeight, product of:
                2.019486 = boost
                5.8843565 = idf(docFreq=335, maxDocs=44421)
                0.018930135 = queryNorm
              0.9101899 = fieldWeight in 3589, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.8843565 = idf(docFreq=335, maxDocs=44421)
                0.109375 = fieldNorm(doc=3589)
          0.14888296 = weight(abstract_txt:british in 3589) [ClassicSimilarity], result of:
            0.14888296 = score(doc=3589,freq=1.0), product of:
              0.22918338 = queryWeight, product of:
                2.0383823 = boost
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.018930135 = queryNorm
              0.6496237 = fieldWeight in 3589, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.109375 = fieldNorm(doc=3589)
          0.24184169 = weight(abstract_txt:catalogue in 3589) [ClassicSimilarity], result of:
            0.24184169 = score(doc=3589,freq=3.0), product of:
              0.25136063 = queryWeight, product of:
                2.6144981 = boost
                5.078731 = idf(docFreq=751, maxDocs=44421)
                0.018930135 = queryNorm
              0.96213037 = fieldWeight in 3589, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.078731 = idf(docFreq=751, maxDocs=44421)
                0.109375 = fieldNorm(doc=3589)
          0.435591 = weight(abstract_txt:conversion in 3589) [ClassicSimilarity], result of:
            0.435591 = score(doc=3589,freq=1.0), product of:
              0.6362861 = queryWeight, product of:
                5.370198 = boost
                6.25905 = idf(docFreq=230, maxDocs=44421)
                0.018930135 = queryNorm
              0.6845836 = fieldWeight in 3589, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.25905 = idf(docFreq=230, maxDocs=44421)
                0.109375 = fieldNorm(doc=3589)
        0.32 = coord(8/25)
    
  2. Oddy, P.: Managing retrospective catalogue conversion (1991) 0.44
    0.44066846 = sum of:
      0.44066846 = product of:
        1.377089 = sum of:
          0.015067502 = weight(abstract_txt:which in 7899) [ClassicSimilarity], result of:
            0.015067502 = score(doc=7899,freq=1.0), product of:
              0.055158425 = queryWeight, product of:
                2.9137893 = idf(docFreq=6552, maxDocs=44421)
                0.018930135 = queryNorm
              0.27316773 = fieldWeight in 7899, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.9137893 = idf(docFreq=6552, maxDocs=44421)
                0.09375 = fieldNorm(doc=7899)
          0.0749844 = weight(abstract_txt:conventional in 7899) [ClassicSimilarity], result of:
            0.0749844 = score(doc=7899,freq=1.0), product of:
              0.12761106 = queryWeight, product of:
                1.0755317 = boost
                6.2677455 = idf(docFreq=228, maxDocs=44421)
                0.018930135 = queryNorm
              0.5876011 = fieldWeight in 7899, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.2677455 = idf(docFreq=228, maxDocs=44421)
                0.09375 = fieldNorm(doc=7899)
          0.019750742 = weight(abstract_txt:library in 7899) [ClassicSimilarity], result of:
            0.019750742 = score(doc=7899,freq=1.0), product of:
              0.06606528 = queryWeight, product of:
                1.0944116 = boost
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.018930135 = queryNorm
              0.29895797 = fieldWeight in 7899, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.09375 = fieldNorm(doc=7899)
          0.08642593 = weight(abstract_txt:1991 in 7899) [ClassicSimilarity], result of:
            0.08642593 = score(doc=7899,freq=1.0), product of:
              0.14028257 = queryWeight, product of:
                1.1276672 = boost
                6.571569 = idf(docFreq=168, maxDocs=44421)
                0.018930135 = queryNorm
              0.6160846 = fieldWeight in 7899, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.571569 = idf(docFreq=168, maxDocs=44421)
                0.09375 = fieldNorm(doc=7899)
          0.09922629 = weight(abstract_txt:retrospective in 7899) [ClassicSimilarity], result of:
            0.09922629 = score(doc=7899,freq=1.0), product of:
              0.15381269 = queryWeight, product of:
                1.1807967 = boost
                6.881186 = idf(docFreq=123, maxDocs=44421)
                0.018930135 = queryNorm
              0.6451112 = fieldWeight in 7899, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.881186 = idf(docFreq=123, maxDocs=44421)
                0.09375 = fieldNorm(doc=7899)
          0.12761395 = weight(abstract_txt:british in 7899) [ClassicSimilarity], result of:
            0.12761395 = score(doc=7899,freq=1.0), product of:
              0.22918338 = queryWeight, product of:
                2.0383823 = boost
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.018930135 = queryNorm
              0.5568203 = fieldWeight in 7899, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.09375 = fieldNorm(doc=7899)
          0.20729288 = weight(abstract_txt:catalogue in 7899) [ClassicSimilarity], result of:
            0.20729288 = score(doc=7899,freq=3.0), product of:
              0.25136063 = queryWeight, product of:
                2.6144981 = boost
                5.078731 = idf(docFreq=751, maxDocs=44421)
                0.018930135 = queryNorm
              0.8246832 = fieldWeight in 7899, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.078731 = idf(docFreq=751, maxDocs=44421)
                0.09375 = fieldNorm(doc=7899)
          0.7467274 = weight(abstract_txt:conversion in 7899) [ClassicSimilarity], result of:
            0.7467274 = score(doc=7899,freq=4.0), product of:
              0.6362861 = queryWeight, product of:
                5.370198 = boost
                6.25905 = idf(docFreq=230, maxDocs=44421)
                0.018930135 = queryNorm
              1.1735718 = fieldWeight in 7899, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.25905 = idf(docFreq=230, maxDocs=44421)
                0.09375 = fieldNorm(doc=7899)
        0.32 = coord(8/25)
    
  3. Thurlow, R.: ¬The state of the Union Catalogue (1998) 0.34
    0.34154797 = sum of:
      0.34154797 = product of:
        1.2198142 = sum of:
          0.017578753 = weight(abstract_txt:which in 147) [ClassicSimilarity], result of:
            0.017578753 = score(doc=147,freq=1.0), product of:
              0.055158425 = queryWeight, product of:
                2.9137893 = idf(docFreq=6552, maxDocs=44421)
                0.018930135 = queryNorm
              0.3186957 = fieldWeight in 147, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.9137893 = idf(docFreq=6552, maxDocs=44421)
                0.109375 = fieldNorm(doc=147)
          0.023042534 = weight(abstract_txt:library in 147) [ClassicSimilarity], result of:
            0.023042534 = score(doc=147,freq=1.0), product of:
              0.06606528 = queryWeight, product of:
                1.0944116 = boost
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.018930135 = queryNorm
              0.3487843 = fieldWeight in 147, 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=147)
          0.115764 = weight(abstract_txt:retrospective in 147) [ClassicSimilarity], result of:
            0.115764 = score(doc=147,freq=1.0), product of:
              0.15381269 = queryWeight, product of:
                1.1807967 = boost
                6.881186 = idf(docFreq=123, maxDocs=44421)
                0.018930135 = queryNorm
              0.7526297 = fieldWeight in 147, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.881186 = idf(docFreq=123, maxDocs=44421)
                0.109375 = fieldNorm(doc=147)
          0.10106432 = weight(abstract_txt:books in 147) [ClassicSimilarity], result of:
            0.10106432 = score(doc=147,freq=1.0), product of:
              0.17701839 = queryWeight, product of:
                1.7914441 = boost
                5.2198906 = idf(docFreq=652, maxDocs=44421)
                0.018930135 = queryNorm
              0.57092553 = fieldWeight in 147, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2198906 = idf(docFreq=652, maxDocs=44421)
                0.109375 = fieldNorm(doc=147)
          0.14888296 = weight(abstract_txt:british in 147) [ClassicSimilarity], result of:
            0.14888296 = score(doc=147,freq=1.0), product of:
              0.22918338 = queryWeight, product of:
                2.0383823 = boost
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.018930135 = queryNorm
              0.6496237 = fieldWeight in 147, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.109375 = fieldNorm(doc=147)
          0.1974629 = weight(abstract_txt:catalogue in 147) [ClassicSimilarity], result of:
            0.1974629 = score(doc=147,freq=2.0), product of:
              0.25136063 = queryWeight, product of:
                2.6144981 = boost
                5.078731 = idf(docFreq=751, maxDocs=44421)
                0.018930135 = queryNorm
              0.7855761 = fieldWeight in 147, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.078731 = idf(docFreq=751, maxDocs=44421)
                0.109375 = fieldNorm(doc=147)
          0.6160187 = weight(abstract_txt:conversion in 147) [ClassicSimilarity], result of:
            0.6160187 = score(doc=147,freq=2.0), product of:
              0.6362861 = queryWeight, product of:
                5.370198 = boost
                6.25905 = idf(docFreq=230, maxDocs=44421)
                0.018930135 = queryNorm
              0.9681474 = fieldWeight in 147, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.25905 = idf(docFreq=230, maxDocs=44421)
                0.109375 = fieldNorm(doc=147)
        0.28 = coord(7/25)
    
  4. Kratz, I.: ¬La conversion retrospective des fonds anciens : l'example des bibliothèques Americaines (1997) 0.30
    0.29707256 = sum of:
      0.29707256 = product of:
        1.0609734 = sum of:
          0.027931767 = weight(abstract_txt:library in 974) [ClassicSimilarity], result of:
            0.027931767 = score(doc=974,freq=2.0), product of:
              0.06606528 = queryWeight, product of:
                1.0944116 = boost
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.018930135 = queryNorm
              0.4227904 = fieldWeight in 974, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.09375 = fieldNorm(doc=974)
          0.09922629 = weight(abstract_txt:retrospective in 974) [ClassicSimilarity], result of:
            0.09922629 = score(doc=974,freq=1.0), product of:
              0.15381269 = queryWeight, product of:
                1.1807967 = boost
                6.881186 = idf(docFreq=123, maxDocs=44421)
                0.018930135 = queryNorm
              0.6451112 = fieldWeight in 974, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.881186 = idf(docFreq=123, maxDocs=44421)
                0.09375 = fieldNorm(doc=974)
          0.08662656 = weight(abstract_txt:books in 974) [ClassicSimilarity], result of:
            0.08662656 = score(doc=974,freq=1.0), product of:
              0.17701839 = queryWeight, product of:
                1.7914441 = boost
                5.2198906 = idf(docFreq=652, maxDocs=44421)
                0.018930135 = queryNorm
              0.48936474 = fieldWeight in 974, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2198906 = idf(docFreq=652, maxDocs=44421)
                0.09375 = fieldNorm(doc=974)
          0.12409771 = weight(abstract_txt:printed in 974) [ClassicSimilarity], result of:
            0.12409771 = score(doc=974,freq=1.0), product of:
              0.2249539 = queryWeight, product of:
                2.019486 = boost
                5.8843565 = idf(docFreq=335, maxDocs=44421)
                0.018930135 = queryNorm
              0.5516584 = fieldWeight in 974, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8843565 = idf(docFreq=335, maxDocs=44421)
                0.09375 = fieldNorm(doc=974)
          0.18047337 = weight(abstract_txt:british in 974) [ClassicSimilarity], result of:
            0.18047337 = score(doc=974,freq=2.0), product of:
              0.22918338 = queryWeight, product of:
                2.0383823 = boost
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.018930135 = queryNorm
              0.7874628 = fieldWeight in 974, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.9394164 = idf(docFreq=317, maxDocs=44421)
                0.09375 = fieldNorm(doc=974)
          0.16925392 = weight(abstract_txt:catalogue in 974) [ClassicSimilarity], result of:
            0.16925392 = score(doc=974,freq=2.0), product of:
              0.25136063 = queryWeight, product of:
                2.6144981 = boost
                5.078731 = idf(docFreq=751, maxDocs=44421)
                0.018930135 = queryNorm
              0.67335093 = fieldWeight in 974, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.078731 = idf(docFreq=751, maxDocs=44421)
                0.09375 = fieldNorm(doc=974)
          0.3733637 = weight(abstract_txt:conversion in 974) [ClassicSimilarity], result of:
            0.3733637 = score(doc=974,freq=1.0), product of:
              0.6362861 = queryWeight, product of:
                5.370198 = boost
                6.25905 = idf(docFreq=230, maxDocs=44421)
                0.018930135 = queryNorm
              0.5867859 = fieldWeight in 974, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.25905 = idf(docFreq=230, maxDocs=44421)
                0.09375 = fieldNorm(doc=974)
        0.28 = coord(7/25)
    
  5. Wessendorf, B.: Catalogue conversion in Switzerland (1991) 0.24
    0.24014448 = sum of:
      0.24014448 = product of:
        1.2007223 = sum of:
          0.026334323 = weight(abstract_txt:library in 7902) [ClassicSimilarity], result of:
            0.026334323 = score(doc=7902,freq=1.0), product of:
              0.06606528 = queryWeight, product of:
                1.0944116 = boost
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.018930135 = queryNorm
              0.39861062 = fieldWeight in 7902, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.188885 = idf(docFreq=4976, maxDocs=44421)
                0.125 = fieldNorm(doc=7902)
          0.115234576 = weight(abstract_txt:1991 in 7902) [ClassicSimilarity], result of:
            0.115234576 = score(doc=7902,freq=1.0), product of:
              0.14028257 = queryWeight, product of:
                1.1276672 = boost
                6.571569 = idf(docFreq=168, maxDocs=44421)
                0.018930135 = queryNorm
              0.8214461 = fieldWeight in 7902, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.571569 = idf(docFreq=168, maxDocs=44421)
                0.125 = fieldNorm(doc=7902)
          0.13230172 = weight(abstract_txt:retrospective in 7902) [ClassicSimilarity], result of:
            0.13230172 = score(doc=7902,freq=1.0), product of:
              0.15381269 = queryWeight, product of:
                1.1807967 = boost
                6.881186 = idf(docFreq=123, maxDocs=44421)
                0.018930135 = queryNorm
              0.86014825 = fieldWeight in 7902, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.881186 = idf(docFreq=123, maxDocs=44421)
                0.125 = fieldNorm(doc=7902)
          0.06460521 = weight(abstract_txt:problems in 7902) [ClassicSimilarity], result of:
            0.06460521 = score(doc=7902,freq=1.0), product of:
              0.120172076 = queryWeight, product of:
                1.4760323 = boost
                4.300847 = idf(docFreq=1636, maxDocs=44421)
                0.018930135 = queryNorm
              0.5376059 = fieldWeight in 7902, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.300847 = idf(docFreq=1636, maxDocs=44421)
                0.125 = fieldNorm(doc=7902)
          0.8622465 = weight(abstract_txt:conversion in 7902) [ClassicSimilarity], result of:
            0.8622465 = score(doc=7902,freq=3.0), product of:
              0.6362861 = queryWeight, product of:
                5.370198 = boost
                6.25905 = idf(docFreq=230, maxDocs=44421)
                0.018930135 = queryNorm
              1.355124 = fieldWeight in 7902, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.25905 = idf(docFreq=230, maxDocs=44421)
                0.125 = fieldNorm(doc=7902)
        0.2 = coord(5/25)