Document (#30861)

Author
Hickey, T.B.
O'Neill, E.T.
Title
FRBRizing OCLC's WorldCat
Source
Functional Requirements for Bibliographic Records (FRBR): hype or cure-all. Ed. by P. le Boeuf,
Imprint
Binghamton, NY : Haworth
Year
2004
Pages
S.xx-xx
Series
Cataloging and classification quarterly; 39, nos.3/4
Abstract
The identification of works according to IFLA's report on Functional Requirements for Bibliographic Records offers challenges when applied to very large collections of bibliographic records. We describe an algorithm that identifies sets of works and discuss our experience applying the algorithm to OCLC's WorldCat. Four main types of works have been found in our analysis: augmented, revised, aggregate, and translated works. Each of these offers challenges for proper identification and collocation. Quite apart from algorithmic implementation, difficult conceptual problems were encountered in applying the FRBR model to aggregate works.
Theme
Formalerschließung
Object
FRBR
WorldCat

Similar documents (author)

  1. Hickey, T.B.; O'Neill, E.T.; Toves, J.: Experiments with the IFLA Functional Requirements for Bibliographic Records (FRBR) (2002) 4.39
    4.3886676 = sum of:
      4.3886676 = sum of:
        1.9848638 = weight(author_txt:o'neill in 3661) [ClassicSimilarity], result of:
          1.9848638 = score(doc=3661,freq=1.0), product of:
            0.6606895 = queryWeight, product of:
              8.011283 = idf(docFreq=38, maxDocs=43254)
              0.08246987 = queryNorm
            3.004231 = fieldWeight in 3661, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.011283 = idf(docFreq=38, maxDocs=43254)
              0.375 = fieldNorm(doc=3661)
        2.4038038 = weight(author_txt:hickey in 3661) [ClassicSimilarity], result of:
          2.4038038 = score(doc=3661,freq=1.0), product of:
            0.75065935 = queryWeight, product of:
              1.0659155 = boost
              8.5393505 = idf(docFreq=22, maxDocs=43254)
              0.08246987 = queryNorm
            3.2022564 = fieldWeight in 3661, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.5393505 = idf(docFreq=22, maxDocs=43254)
              0.375 = fieldNorm(doc=3661)
    
  2. Hickey, T.B.; Toves, J.; O'Neill, E.T.: NACO normalization : a detailed examination of the authority file comparison rules (2006) 4.39
    4.3886676 = sum of:
      4.3886676 = sum of:
        1.9848638 = weight(author_txt:o'neill in 761) [ClassicSimilarity], result of:
          1.9848638 = score(doc=761,freq=1.0), product of:
            0.6606895 = queryWeight, product of:
              8.011283 = idf(docFreq=38, maxDocs=43254)
              0.08246987 = queryNorm
            3.004231 = fieldWeight in 761, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.011283 = idf(docFreq=38, maxDocs=43254)
              0.375 = fieldNorm(doc=761)
        2.4038038 = weight(author_txt:hickey in 761) [ClassicSimilarity], result of:
          2.4038038 = score(doc=761,freq=1.0), product of:
            0.75065935 = queryWeight, product of:
              1.0659155 = boost
              8.5393505 = idf(docFreq=22, maxDocs=43254)
              0.08246987 = queryNorm
            3.2022564 = fieldWeight in 761, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.5393505 = idf(docFreq=22, maxDocs=43254)
              0.375 = fieldNorm(doc=761)
    
  3. Hickey, D.J.: Subject analysis: an interpretative survey (1976/77) 2.00
    2.0031698 = sum of:
      2.0031698 = product of:
        4.0063396 = sum of:
          4.0063396 = weight(author_txt:hickey in 1710) [ClassicSimilarity], result of:
            4.0063396 = score(doc=1710,freq=1.0), product of:
              0.75065935 = queryWeight, product of:
                1.0659155 = boost
                8.5393505 = idf(docFreq=22, maxDocs=43254)
                0.08246987 = queryNorm
              5.3370943 = fieldWeight in 1710, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.5393505 = idf(docFreq=22, maxDocs=43254)
                0.625 = fieldNorm(doc=1710)
        0.5 = coord(1/2)
    
  4. Hickey, R.: Datenbankverwaltung auf dem PC : eine praxisorientierte Einführung für jeden Anwender (1993) 2.00
    2.0031698 = sum of:
      2.0031698 = product of:
        4.0063396 = sum of:
          4.0063396 = weight(author_txt:hickey in 6593) [ClassicSimilarity], result of:
            4.0063396 = score(doc=6593,freq=1.0), product of:
              0.75065935 = queryWeight, product of:
                1.0659155 = boost
                8.5393505 = idf(docFreq=22, maxDocs=43254)
                0.08246987 = queryNorm
              5.3370943 = fieldWeight in 6593, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.5393505 = idf(docFreq=22, maxDocs=43254)
                0.625 = fieldNorm(doc=6593)
        0.5 = coord(1/2)
    
  5. Hickey, T.B.: ¬The Experimental Library System (XLS) (1989) 2.00
    2.0031698 = sum of:
      2.0031698 = product of:
        4.0063396 = sum of:
          4.0063396 = weight(author_txt:hickey in 3944) [ClassicSimilarity], result of:
            4.0063396 = score(doc=3944,freq=1.0), product of:
              0.75065935 = queryWeight, product of:
                1.0659155 = boost
                8.5393505 = idf(docFreq=22, maxDocs=43254)
                0.08246987 = queryNorm
              5.3370943 = fieldWeight in 3944, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.5393505 = idf(docFreq=22, maxDocs=43254)
                0.625 = fieldNorm(doc=3944)
        0.5 = coord(1/2)
    

Similar documents (content)

  1. Hickey, T.B.; O'Neill, E.T.; Toves, J.: Experiments with the IFLA Functional Requirements for Bibliographic Records (FRBR) (2002) 0.43
    0.42778656 = sum of:
      0.42778656 = product of:
        1.336833 = sum of:
          0.072549455 = weight(abstract_txt:functional in 3661) [ClassicSimilarity], result of:
            0.072549455 = score(doc=3661,freq=1.0), product of:
              0.09977728 = queryWeight, product of:
                1.061395 = boost
                5.8169117 = idf(docFreq=349, maxDocs=43254)
                0.016160773 = queryNorm
              0.72711396 = fieldWeight in 3661, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8169117 = idf(docFreq=349, maxDocs=43254)
                0.125 = fieldNorm(doc=3661)
          0.095343255 = weight(abstract_txt:frbr in 3661) [ClassicSimilarity], result of:
            0.095343255 = score(doc=3661,freq=1.0), product of:
              0.11971141 = queryWeight, product of:
                1.1625965 = boost
                6.37154 = idf(docFreq=200, maxDocs=43254)
                0.016160773 = queryNorm
              0.7964425 = fieldWeight in 3661, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.37154 = idf(docFreq=200, maxDocs=43254)
                0.125 = fieldNorm(doc=3661)
          0.07877839 = weight(abstract_txt:bibliographic in 3661) [ClassicSimilarity], result of:
            0.07877839 = score(doc=3661,freq=2.0), product of:
              0.10540964 = queryWeight, product of:
                1.542824 = boost
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.016160773 = queryNorm
              0.74735475 = fieldWeight in 3661, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.125 = fieldNorm(doc=3661)
          0.11030896 = weight(abstract_txt:records in 3661) [ClassicSimilarity], result of:
            0.11030896 = score(doc=3661,freq=3.0), product of:
              0.11525303 = queryWeight, product of:
                1.6132528 = boost
                4.420667 = idf(docFreq=1413, maxDocs=43254)
                0.016160773 = queryNorm
              0.9571025 = fieldWeight in 3661, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.420667 = idf(docFreq=1413, maxDocs=43254)
                0.125 = fieldNorm(doc=3661)
          0.27867433 = weight(abstract_txt:ifla's in 3661) [ClassicSimilarity], result of:
            0.27867433 = score(doc=3661,freq=1.0), product of:
              0.2447223 = queryWeight, product of:
                1.6622564 = boost
                9.109896 = idf(docFreq=12, maxDocs=43254)
                0.016160773 = queryNorm
              1.138737 = fieldWeight in 3661, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.109896 = idf(docFreq=12, maxDocs=43254)
                0.125 = fieldNorm(doc=3661)
          0.13789508 = weight(abstract_txt:algorithm in 3661) [ClassicSimilarity], result of:
            0.13789508 = score(doc=3661,freq=1.0), product of:
              0.19289371 = queryWeight, product of:
                2.0870616 = boost
                5.7190075 = idf(docFreq=385, maxDocs=43254)
                0.016160773 = queryNorm
              0.71487594 = fieldWeight in 3661, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.7190075 = idf(docFreq=385, maxDocs=43254)
                0.125 = fieldNorm(doc=3661)
          0.29684505 = weight(abstract_txt:worldcat in 3661) [ClassicSimilarity], result of:
            0.29684505 = score(doc=3661,freq=1.0), product of:
              0.32159215 = queryWeight, product of:
                2.694815 = boost
                7.3843856 = idf(docFreq=72, maxDocs=43254)
                0.016160773 = queryNorm
              0.9230482 = fieldWeight in 3661, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.3843856 = idf(docFreq=72, maxDocs=43254)
                0.125 = fieldNorm(doc=3661)
          0.2664383 = weight(abstract_txt:works in 3661) [ClassicSimilarity], result of:
            0.2664383 = score(doc=3661,freq=1.0), product of:
              0.40612838 = queryWeight, product of:
                4.788262 = boost
                5.2483563 = idf(docFreq=617, maxDocs=43254)
                0.016160773 = queryNorm
              0.65604454 = fieldWeight in 3661, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2483563 = idf(docFreq=617, maxDocs=43254)
                0.125 = fieldNorm(doc=3661)
        0.32 = coord(8/25)
    
  2. FictionFinder : a FRBR-based prototype for fiction in WorldCat (o.J.) 0.32
    0.31556928 = sum of:
      0.31556928 = product of:
        1.1270331 = sum of:
          0.12385451 = weight(abstract_txt:frbr in 3897) [ClassicSimilarity], result of:
            0.12385451 = score(doc=3897,freq=3.0), product of:
              0.11971141 = queryWeight, product of:
                1.1625965 = boost
                6.37154 = idf(docFreq=200, maxDocs=43254)
                0.016160773 = queryNorm
              1.0346091 = fieldWeight in 3897, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.37154 = idf(docFreq=200, maxDocs=43254)
                0.09375 = fieldNorm(doc=3897)
          0.08355711 = weight(abstract_txt:bibliographic in 3897) [ClassicSimilarity], result of:
            0.08355711 = score(doc=3897,freq=4.0), product of:
              0.10540964 = queryWeight, product of:
                1.542824 = boost
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.016160773 = queryNorm
              0.79268944 = fieldWeight in 3897, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.09375 = fieldNorm(doc=3897)
          0.106806196 = weight(abstract_txt:records in 3897) [ClassicSimilarity], result of:
            0.106806196 = score(doc=3897,freq=5.0), product of:
              0.11525303 = queryWeight, product of:
                1.6132528 = boost
                4.420667 = idf(docFreq=1413, maxDocs=43254)
                0.016160773 = queryNorm
              0.92671055 = fieldWeight in 3897, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.420667 = idf(docFreq=1413, maxDocs=43254)
                0.09375 = fieldNorm(doc=3897)
          0.14625981 = weight(abstract_txt:algorithm in 3897) [ClassicSimilarity], result of:
            0.14625981 = score(doc=3897,freq=2.0), product of:
              0.19289371 = queryWeight, product of:
                2.0870616 = boost
                5.7190075 = idf(docFreq=385, maxDocs=43254)
                0.016160773 = queryNorm
              0.75824046 = fieldWeight in 3897, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.7190075 = idf(docFreq=385, maxDocs=43254)
                0.09375 = fieldNorm(doc=3897)
          0.2226338 = weight(abstract_txt:worldcat in 3897) [ClassicSimilarity], result of:
            0.2226338 = score(doc=3897,freq=1.0), product of:
              0.32159215 = queryWeight, product of:
                2.694815 = boost
                7.3843856 = idf(docFreq=72, maxDocs=43254)
                0.016160773 = queryNorm
              0.69228613 = fieldWeight in 3897, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.3843856 = idf(docFreq=72, maxDocs=43254)
                0.09375 = fieldNorm(doc=3897)
          0.24409302 = weight(abstract_txt:aggregate in 3897) [ClassicSimilarity], result of:
            0.24409302 = score(doc=3897,freq=1.0), product of:
              0.34193873 = queryWeight, product of:
                2.778756 = boost
                7.614402 = idf(docFreq=57, maxDocs=43254)
                0.016160773 = queryNorm
              0.71385014 = fieldWeight in 3897, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.614402 = idf(docFreq=57, maxDocs=43254)
                0.09375 = fieldNorm(doc=3897)
          0.19982873 = weight(abstract_txt:works in 3897) [ClassicSimilarity], result of:
            0.19982873 = score(doc=3897,freq=1.0), product of:
              0.40612838 = queryWeight, product of:
                4.788262 = boost
                5.2483563 = idf(docFreq=617, maxDocs=43254)
                0.016160773 = queryNorm
              0.49203342 = fieldWeight in 3897, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2483563 = idf(docFreq=617, maxDocs=43254)
                0.09375 = fieldNorm(doc=3897)
        0.28 = coord(7/25)
    
  3. Zumer, M.; O'Neill, E.T.: Modeling aggregates in FRBR (2012) 0.26
    0.25975257 = sum of:
      0.25975257 = product of:
        0.9276877 = sum of:
          0.04534341 = weight(abstract_txt:functional in 3378) [ClassicSimilarity], result of:
            0.04534341 = score(doc=3378,freq=1.0), product of:
              0.09977728 = queryWeight, product of:
                1.061395 = boost
                5.8169117 = idf(docFreq=349, maxDocs=43254)
                0.016160773 = queryNorm
              0.45444623 = fieldWeight in 3378, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8169117 = idf(docFreq=349, maxDocs=43254)
                0.078125 = fieldNorm(doc=3378)
          0.103212096 = weight(abstract_txt:frbr in 3378) [ClassicSimilarity], result of:
            0.103212096 = score(doc=3378,freq=3.0), product of:
              0.11971141 = queryWeight, product of:
                1.1625965 = boost
                6.37154 = idf(docFreq=200, maxDocs=43254)
                0.016160773 = queryNorm
              0.8621743 = fieldWeight in 3378, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.37154 = idf(docFreq=200, maxDocs=43254)
                0.078125 = fieldNorm(doc=3378)
          0.07784974 = weight(abstract_txt:bibliographic in 3378) [ClassicSimilarity], result of:
            0.07784974 = score(doc=3378,freq=5.0), product of:
              0.10540964 = queryWeight, product of:
                1.542824 = boost
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.016160773 = queryNorm
              0.73854476 = fieldWeight in 3378, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.078125 = fieldNorm(doc=3378)
          0.056291804 = weight(abstract_txt:records in 3378) [ClassicSimilarity], result of:
            0.056291804 = score(doc=3378,freq=2.0), product of:
              0.11525303 = queryWeight, product of:
                1.6132528 = boost
                4.420667 = idf(docFreq=1413, maxDocs=43254)
                0.016160773 = queryNorm
              0.4884193 = fieldWeight in 3378, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.420667 = idf(docFreq=1413, maxDocs=43254)
                0.078125 = fieldNorm(doc=3378)
          0.17179611 = weight(abstract_txt:oclc's in 3378) [ClassicSimilarity], result of:
            0.17179611 = score(doc=3378,freq=1.0), product of:
              0.30552104 = queryWeight, product of:
                2.6266172 = boost
                7.1975083 = idf(docFreq=87, maxDocs=43254)
                0.016160773 = queryNorm
              0.56230533 = fieldWeight in 3378, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.1975083 = idf(docFreq=87, maxDocs=43254)
                0.078125 = fieldNorm(doc=3378)
          0.18552816 = weight(abstract_txt:worldcat in 3378) [ClassicSimilarity], result of:
            0.18552816 = score(doc=3378,freq=1.0), product of:
              0.32159215 = queryWeight, product of:
                2.694815 = boost
                7.3843856 = idf(docFreq=72, maxDocs=43254)
                0.016160773 = queryNorm
              0.57690513 = fieldWeight in 3378, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.3843856 = idf(docFreq=72, maxDocs=43254)
                0.078125 = fieldNorm(doc=3378)
          0.28766638 = weight(abstract_txt:aggregate in 3378) [ClassicSimilarity], result of:
            0.28766638 = score(doc=3378,freq=2.0), product of:
              0.34193873 = queryWeight, product of:
                2.778756 = boost
                7.614402 = idf(docFreq=57, maxDocs=43254)
                0.016160773 = queryNorm
              0.84128046 = fieldWeight in 3378, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.614402 = idf(docFreq=57, maxDocs=43254)
                0.078125 = fieldNorm(doc=3378)
        0.28 = coord(7/25)
    
  4. O'Neill, E.; Zumer, M.; Mixter, J.: FRBR aggregates : their types and frequency in library collections (2015) 0.18
    0.17690867 = sum of:
      0.17690867 = product of:
        0.7371195 = sum of:
          0.03792128 = weight(abstract_txt:difficult in 4075) [ClassicSimilarity], result of:
            0.03792128 = score(doc=4075,freq=1.0), product of:
              0.08856814 = queryWeight, product of:
                5.4804397 = idf(docFreq=489, maxDocs=43254)
                0.016160773 = queryNorm
              0.42815936 = fieldWeight in 4075, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4804397 = idf(docFreq=489, maxDocs=43254)
                0.078125 = fieldNorm(doc=4075)
          0.07784974 = weight(abstract_txt:bibliographic in 4075) [ClassicSimilarity], result of:
            0.07784974 = score(doc=4075,freq=5.0), product of:
              0.10540964 = queryWeight, product of:
                1.542824 = boost
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.016160773 = queryNorm
              0.73854476 = fieldWeight in 4075, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.078125 = fieldNorm(doc=4075)
          0.09750028 = weight(abstract_txt:records in 4075) [ClassicSimilarity], result of:
            0.09750028 = score(doc=4075,freq=6.0), product of:
              0.11525303 = queryWeight, product of:
                1.6132528 = boost
                4.420667 = idf(docFreq=1413, maxDocs=43254)
                0.016160773 = queryNorm
              0.8459672 = fieldWeight in 4075, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                4.420667 = idf(docFreq=1413, maxDocs=43254)
                0.078125 = fieldNorm(doc=4075)
          0.17179611 = weight(abstract_txt:oclc's in 4075) [ClassicSimilarity], result of:
            0.17179611 = score(doc=4075,freq=1.0), product of:
              0.30552104 = queryWeight, product of:
                2.6266172 = boost
                7.1975083 = idf(docFreq=87, maxDocs=43254)
                0.016160773 = queryNorm
              0.56230533 = fieldWeight in 4075, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.1975083 = idf(docFreq=87, maxDocs=43254)
                0.078125 = fieldNorm(doc=4075)
          0.18552816 = weight(abstract_txt:worldcat in 4075) [ClassicSimilarity], result of:
            0.18552816 = score(doc=4075,freq=1.0), product of:
              0.32159215 = queryWeight, product of:
                2.694815 = boost
                7.3843856 = idf(docFreq=72, maxDocs=43254)
                0.016160773 = queryNorm
              0.57690513 = fieldWeight in 4075, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.3843856 = idf(docFreq=72, maxDocs=43254)
                0.078125 = fieldNorm(doc=4075)
          0.16652393 = weight(abstract_txt:works in 4075) [ClassicSimilarity], result of:
            0.16652393 = score(doc=4075,freq=1.0), product of:
              0.40612838 = queryWeight, product of:
                4.788262 = boost
                5.2483563 = idf(docFreq=617, maxDocs=43254)
                0.016160773 = queryNorm
              0.41002783 = fieldWeight in 4075, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2483563 = idf(docFreq=617, maxDocs=43254)
                0.078125 = fieldNorm(doc=4075)
        0.24 = coord(6/25)
    
  5. Gatenby, J.; Thornburg, G.; Weitz, J.: Collected work clustering in WorldCat : three techniques for maintaining records (2015) 0.17
    0.17412491 = sum of:
      0.17412491 = product of:
        0.87062454 = sum of:
          0.056291804 = weight(abstract_txt:records in 3741) [ClassicSimilarity], result of:
            0.056291804 = score(doc=3741,freq=2.0), product of:
              0.11525303 = queryWeight, product of:
                1.6132528 = boost
                4.420667 = idf(docFreq=1413, maxDocs=43254)
                0.016160773 = queryNorm
              0.4884193 = fieldWeight in 3741, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.420667 = idf(docFreq=1413, maxDocs=43254)
                0.078125 = fieldNorm(doc=3741)
          0.065052815 = weight(abstract_txt:challenges in 3741) [ClassicSimilarity], result of:
            0.065052815 = score(doc=3741,freq=1.0), product of:
              0.15991025 = queryWeight, product of:
                1.9002658 = boost
                5.207146 = idf(docFreq=643, maxDocs=43254)
                0.016160773 = queryNorm
              0.4068083 = fieldWeight in 3741, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.207146 = idf(docFreq=643, maxDocs=43254)
                0.078125 = fieldNorm(doc=3741)
          0.092750974 = weight(abstract_txt:identification in 3741) [ClassicSimilarity], result of:
            0.092750974 = score(doc=3741,freq=1.0), product of:
              0.20257129 = queryWeight, product of:
                2.1387753 = boost
                5.8607144 = idf(docFreq=334, maxDocs=43254)
                0.016160773 = queryNorm
              0.4578683 = fieldWeight in 3741, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8607144 = idf(docFreq=334, maxDocs=43254)
                0.078125 = fieldNorm(doc=3741)
          0.18552816 = weight(abstract_txt:worldcat in 3741) [ClassicSimilarity], result of:
            0.18552816 = score(doc=3741,freq=1.0), product of:
              0.32159215 = queryWeight, product of:
                2.694815 = boost
                7.3843856 = idf(docFreq=72, maxDocs=43254)
                0.016160773 = queryNorm
              0.57690513 = fieldWeight in 3741, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.3843856 = idf(docFreq=72, maxDocs=43254)
                0.078125 = fieldNorm(doc=3741)
          0.4710008 = weight(abstract_txt:works in 3741) [ClassicSimilarity], result of:
            0.4710008 = score(doc=3741,freq=8.0), product of:
              0.40612838 = queryWeight, product of:
                4.788262 = boost
                5.2483563 = idf(docFreq=617, maxDocs=43254)
                0.016160773 = queryNorm
              1.1597338 = fieldWeight in 3741, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                5.2483563 = idf(docFreq=617, maxDocs=43254)
                0.078125 = fieldNorm(doc=3741)
        0.2 = coord(5/25)