Document (#34859)

Author
Schreiber, M.
Title
¬A case study of the modified Hirsch index hm accounting for multiple coauthors
Source
Journal of the American Society for Information Science and Technology. 60(2009) no.6, S.1274-1282
Year
2009
Abstract
J.E. Hirsch (2005) introduced the h-index to quantify an individual's scientific research output by the largest number h of a scientist's papers, that received at least h citations. This so-called Hirsch index can be easily modified to take multiple coauthorship into account by counting the papers fractionally according to (the inverse of) the number of authors. I have worked out 26 empirical cases of physicists to illustrate the effect of this modification. Although the correlation between the original and the modified Hirsch index is relatively strong, the arrangement of the datasets is significantly different depending on whether they are put into order according to the values of either the original or the modified index.
Theme
Informetrie
Object
h-Index

Similar documents (author)

  1. Schreiber, K.: Bestandsaufbau, Bestandspflege, Bestandserschließung eines Informationsapparates (1978) 5.04
    5.0370636 = sum of:
      5.0370636 = weight(author_txt:schreiber in 5766) [ClassicSimilarity], result of:
        5.0370636 = fieldWeight in 5766, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.059301 = idf(docFreq=37, maxDocs=44218)
          0.625 = fieldNorm(doc=5766)
    
  2. Schreiber, K.: Hat die 'Literaturerschließung' in Universitäts- und Hochschulbibliotheken Zukunft? : zehn Jahre DFG-Programm 'Literaturerschließung'. Kritik und Vorschläge (1971) 5.04
    5.0370636 = sum of:
      5.0370636 = weight(author_txt:schreiber in 7360) [ClassicSimilarity], result of:
        5.0370636 = fieldWeight in 7360, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.059301 = idf(docFreq=37, maxDocs=44218)
          0.625 = fieldNorm(doc=7360)
    
  3. Schreiber, K.: Fünf Jahre Informationsmittel für Bibliotheken (IfB) : Rückblick, gegenwärtiger Stand und Zukunftsperspektiven, Bericht über eine Veranstaltung auf dem 88. Deutschen Bibliothekartag 1998, frankfurt am Main (1998) 5.04
    5.0370636 = sum of:
      5.0370636 = weight(author_txt:schreiber in 2) [ClassicSimilarity], result of:
        5.0370636 = fieldWeight in 2, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.059301 = idf(docFreq=37, maxDocs=44218)
          0.625 = fieldNorm(doc=2)
    
  4. Schreiber, K.: Informationsmittel für Bibliotheken : ein neuer Informationsdienst von Bibliothekaren für Bibliothekare (1993) 5.04
    5.0370636 = sum of:
      5.0370636 = weight(author_txt:schreiber in 1305) [ClassicSimilarity], result of:
        5.0370636 = fieldWeight in 1305, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.059301 = idf(docFreq=37, maxDocs=44218)
          0.625 = fieldNorm(doc=1305)
    
  5. Schreiber, K.: ¬(Ca.) 100 Jahre Comics : eine Komplexrezension neuerer Informationsmittel über die Neunte Kunst (1997) 5.04
    5.0370636 = sum of:
      5.0370636 = weight(author_txt:schreiber in 433) [ClassicSimilarity], result of:
        5.0370636 = fieldWeight in 433, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.059301 = idf(docFreq=37, maxDocs=44218)
          0.625 = fieldNorm(doc=433)
    

Similar documents (content)

  1. Schreiber, M.: ¬An empirical investigation of the g-index for 26 physicists in comparison with the h-index, the A-index, and the R-index (2008) 0.74
    0.7449229 = sum of:
      0.7449229 = product of:
        1.241538 = sum of:
          0.05485677 = weight(abstract_txt:datasets in 1968) [ClassicSimilarity], result of:
            0.05485677 = score(doc=1968,freq=2.0), product of:
              0.09433707 = queryWeight, product of:
                6.578893 = idf(docFreq=166, maxDocs=44218)
                0.014339353 = queryNorm
              0.5814975 = fieldWeight in 1968, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.578893 = idf(docFreq=166, maxDocs=44218)
                0.0625 = fieldNorm(doc=1968)
          0.040007357 = weight(abstract_txt:arrangement in 1968) [ClassicSimilarity], result of:
            0.040007357 = score(doc=1968,freq=1.0), product of:
              0.096301295 = queryWeight, product of:
                1.010357 = boost
                6.6470313 = idf(docFreq=155, maxDocs=44218)
                0.014339353 = queryNorm
              0.41543946 = fieldWeight in 1968, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.6470313 = idf(docFreq=155, maxDocs=44218)
                0.0625 = fieldNorm(doc=1968)
          0.061571922 = weight(abstract_txt:largest in 1968) [ClassicSimilarity], result of:
            0.061571922 = score(doc=1968,freq=2.0), product of:
              0.101886675 = queryWeight, product of:
                1.0392439 = boost
                6.8370748 = idf(docFreq=128, maxDocs=44218)
                0.014339353 = queryNorm
              0.6043177 = fieldWeight in 1968, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.8370748 = idf(docFreq=128, maxDocs=44218)
                0.0625 = fieldNorm(doc=1968)
          0.045262896 = weight(abstract_txt:depending in 1968) [ClassicSimilarity], result of:
            0.045262896 = score(doc=1968,freq=1.0), product of:
              0.10456037 = queryWeight, product of:
                1.0527915 = boost
                6.926203 = idf(docFreq=117, maxDocs=44218)
                0.014339353 = queryNorm
              0.43288767 = fieldWeight in 1968, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.926203 = idf(docFreq=117, maxDocs=44218)
                0.0625 = fieldNorm(doc=1968)
          0.05225833 = weight(abstract_txt:worked in 1968) [ClassicSimilarity], result of:
            0.05225833 = score(doc=1968,freq=1.0), product of:
              0.11507366 = queryWeight, product of:
                1.1044518 = boost
                7.2660704 = idf(docFreq=83, maxDocs=44218)
                0.014339353 = queryNorm
              0.4541294 = fieldWeight in 1968, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.2660704 = idf(docFreq=83, maxDocs=44218)
                0.0625 = fieldNorm(doc=1968)
          0.02395983 = weight(abstract_txt:into in 1968) [ClassicSimilarity], result of:
            0.02395983 = score(doc=1968,freq=3.0), product of:
              0.059771977 = queryWeight, product of:
                1.1256999 = boost
                3.7029297 = idf(docFreq=2962, maxDocs=44218)
                0.014339353 = queryNorm
              0.4008539 = fieldWeight in 1968, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.7029297 = idf(docFreq=2962, maxDocs=44218)
                0.0625 = fieldNorm(doc=1968)
          0.060257416 = weight(abstract_txt:individual's in 1968) [ClassicSimilarity], result of:
            0.060257416 = score(doc=1968,freq=1.0), product of:
              0.12653555 = queryWeight, product of:
                1.1581507 = boost
                7.61935 = idf(docFreq=58, maxDocs=44218)
                0.014339353 = queryNorm
              0.47620937 = fieldWeight in 1968, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.61935 = idf(docFreq=58, maxDocs=44218)
                0.0625 = fieldNorm(doc=1968)
          0.0623829 = weight(abstract_txt:quantify in 1968) [ClassicSimilarity], result of:
            0.0623829 = score(doc=1968,freq=1.0), product of:
              0.12949389 = queryWeight, product of:
                1.171611 = boost
                7.7079034 = idf(docFreq=53, maxDocs=44218)
                0.014339353 = queryNorm
              0.48174396 = fieldWeight in 1968, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.7079034 = idf(docFreq=53, maxDocs=44218)
                0.0625 = fieldNorm(doc=1968)
          0.0333068 = weight(abstract_txt:number in 1968) [ClassicSimilarity], result of:
            0.0333068 = score(doc=1968,freq=3.0), product of:
              0.07444984 = queryWeight, product of:
                1.2563356 = boost
                4.132649 = idf(docFreq=1927, maxDocs=44218)
                0.014339353 = queryNorm
              0.44737238 = fieldWeight in 1968, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.132649 = idf(docFreq=1927, maxDocs=44218)
                0.0625 = fieldNorm(doc=1968)
          0.08548501 = weight(abstract_txt:physicists in 1968) [ClassicSimilarity], result of:
            0.08548501 = score(doc=1968,freq=1.0), product of:
              0.15975907 = queryWeight, product of:
                1.3013424 = boost
                8.561393 = idf(docFreq=22, maxDocs=44218)
                0.014339353 = queryNorm
              0.53508705 = fieldWeight in 1968, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.561393 = idf(docFreq=22, maxDocs=44218)
                0.0625 = fieldNorm(doc=1968)
          0.09133671 = weight(abstract_txt:scientist's in 1968) [ClassicSimilarity], result of:
            0.09133671 = score(doc=1968,freq=1.0), product of:
              0.16696899 = queryWeight, product of:
                1.3303831 = boost
                8.752448 = idf(docFreq=18, maxDocs=44218)
                0.014339353 = queryNorm
              0.547028 = fieldWeight in 1968, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.752448 = idf(docFreq=18, maxDocs=44218)
                0.0625 = fieldNorm(doc=1968)
          0.03934369 = weight(abstract_txt:according in 1968) [ClassicSimilarity], result of:
            0.03934369 = score(doc=1968,freq=1.0), product of:
              0.11998647 = queryWeight, product of:
                1.5949237 = boost
                5.2464166 = idf(docFreq=632, maxDocs=44218)
                0.014339353 = queryNorm
              0.32790104 = fieldWeight in 1968, 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=1968)
          0.05656327 = weight(abstract_txt:papers in 1968) [ClassicSimilarity], result of:
            0.05656327 = score(doc=1968,freq=2.0), product of:
              0.121309616 = queryWeight, product of:
                1.6036937 = boost
                5.2752647 = idf(docFreq=614, maxDocs=44218)
                0.014339353 = queryNorm
              0.46627194 = fieldWeight in 1968, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.2752647 = idf(docFreq=614, maxDocs=44218)
                0.0625 = fieldNorm(doc=1968)
          0.193005 = weight(abstract_txt:index in 1968) [ClassicSimilarity], result of:
            0.193005 = score(doc=1968,freq=7.0), product of:
              0.2457774 = queryWeight, product of:
                3.609232 = boost
                4.74895 = idf(docFreq=1040, maxDocs=44218)
                0.014339353 = queryNorm
              0.78528374 = fieldWeight in 1968, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                4.74895 = idf(docFreq=1040, maxDocs=44218)
                0.0625 = fieldNorm(doc=1968)
          0.34194005 = weight(abstract_txt:hirsch in 1968) [ClassicSimilarity], result of:
            0.34194005 = score(doc=1968,freq=1.0), product of:
              0.6390363 = queryWeight, product of:
                5.2053695 = boost
                8.561393 = idf(docFreq=22, maxDocs=44218)
                0.014339353 = queryNorm
              0.53508705 = fieldWeight in 1968, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.561393 = idf(docFreq=22, maxDocs=44218)
                0.0625 = fieldNorm(doc=1968)
        0.6 = coord(15/25)
    
  2. Schreiber, M.: Fractionalized counting of publications for the g-Index (2009) 0.36
    0.3570606 = sum of:
      0.3570606 = product of:
        1.2752165 = sum of:
          0.07482442 = weight(abstract_txt:counting in 3125) [ClassicSimilarity], result of:
            0.07482442 = score(doc=3125,freq=1.0), product of:
              0.12597793 = queryWeight, product of:
                1.155596 = boost
                7.602543 = idf(docFreq=59, maxDocs=44218)
                0.014339353 = queryNorm
              0.59394866 = fieldWeight in 3125, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.602543 = idf(docFreq=59, maxDocs=44218)
                0.078125 = fieldNorm(doc=3125)
          0.024037112 = weight(abstract_txt:number in 3125) [ClassicSimilarity], result of:
            0.024037112 = score(doc=3125,freq=1.0), product of:
              0.07444984 = queryWeight, product of:
                1.2563356 = boost
                4.132649 = idf(docFreq=1927, maxDocs=44218)
                0.014339353 = queryNorm
              0.3228632 = fieldWeight in 3125, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.132649 = idf(docFreq=1927, maxDocs=44218)
                0.078125 = fieldNorm(doc=3125)
          0.16548055 = weight(abstract_txt:fractionally in 3125) [ClassicSimilarity], result of:
            0.16548055 = score(doc=3125,freq=1.0), product of:
              0.2138439 = queryWeight, product of:
                1.5055918 = boost
                9.905128 = idf(docFreq=5, maxDocs=44218)
                0.014339353 = queryNorm
              0.7738381 = fieldWeight in 3125, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.905128 = idf(docFreq=5, maxDocs=44218)
                0.078125 = fieldNorm(doc=3125)
          0.07590741 = weight(abstract_txt:original in 3125) [ClassicSimilarity], result of:
            0.07590741 = score(doc=3125,freq=2.0), product of:
              0.12719059 = queryWeight, product of:
                1.6421064 = boost
                5.4016213 = idf(docFreq=541, maxDocs=44218)
                0.014339353 = queryNorm
              0.5968005 = fieldWeight in 3125, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.4016213 = idf(docFreq=541, maxDocs=44218)
                0.078125 = fieldNorm(doc=3125)
          0.2883564 = weight(abstract_txt:index in 3125) [ClassicSimilarity], result of:
            0.2883564 = score(doc=3125,freq=10.0), product of:
              0.2457774 = queryWeight, product of:
                3.609232 = boost
                4.74895 = idf(docFreq=1040, maxDocs=44218)
                0.014339353 = queryNorm
              1.1732421 = fieldWeight in 3125, product of:
                3.1622777 = tf(freq=10.0), with freq of:
                  10.0 = termFreq=10.0
                4.74895 = idf(docFreq=1040, maxDocs=44218)
                0.078125 = fieldNorm(doc=3125)
          0.21918558 = weight(abstract_txt:modified in 3125) [ClassicSimilarity], result of:
            0.21918558 = score(doc=3125,freq=1.0), product of:
              0.40941167 = queryWeight, product of:
                4.1664762 = boost
                6.8527 = idf(docFreq=126, maxDocs=44218)
                0.014339353 = queryNorm
              0.5353672 = fieldWeight in 3125, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.8527 = idf(docFreq=126, maxDocs=44218)
                0.078125 = fieldNorm(doc=3125)
          0.42742506 = weight(abstract_txt:hirsch in 3125) [ClassicSimilarity], result of:
            0.42742506 = score(doc=3125,freq=1.0), product of:
              0.6390363 = queryWeight, product of:
                5.2053695 = boost
                8.561393 = idf(docFreq=22, maxDocs=44218)
                0.014339353 = queryNorm
              0.6688588 = fieldWeight in 3125, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.561393 = idf(docFreq=22, maxDocs=44218)
                0.078125 = fieldNorm(doc=3125)
        0.28 = coord(7/25)
    
  3. Bornmann, L.; Daniel, H.-D.: What do we know about the h index? (2007) 0.15
    0.15308373 = sum of:
      0.15308373 = product of:
        0.9567733 = sum of:
          0.09357435 = weight(abstract_txt:quantify in 477) [ClassicSimilarity], result of:
            0.09357435 = score(doc=477,freq=1.0), product of:
              0.12949389 = queryWeight, product of:
                1.171611 = boost
                7.7079034 = idf(docFreq=53, maxDocs=44218)
                0.014339353 = queryNorm
              0.72261596 = fieldWeight in 477, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.7079034 = idf(docFreq=53, maxDocs=44218)
                0.09375 = fieldNorm(doc=477)
          0.04079233 = weight(abstract_txt:number in 477) [ClassicSimilarity], result of:
            0.04079233 = score(doc=477,freq=2.0), product of:
              0.07444984 = queryWeight, product of:
                1.2563356 = boost
                4.132649 = idf(docFreq=1927, maxDocs=44218)
                0.014339353 = queryNorm
              0.547917 = fieldWeight in 477, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.132649 = idf(docFreq=1927, maxDocs=44218)
                0.09375 = fieldNorm(doc=477)
          0.30949652 = weight(abstract_txt:index in 477) [ClassicSimilarity], result of:
            0.30949652 = score(doc=477,freq=8.0), product of:
              0.2457774 = queryWeight, product of:
                3.609232 = boost
                4.74895 = idf(docFreq=1040, maxDocs=44218)
                0.014339353 = queryNorm
              1.2592554 = fieldWeight in 477, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                4.74895 = idf(docFreq=1040, maxDocs=44218)
                0.09375 = fieldNorm(doc=477)
          0.51291007 = weight(abstract_txt:hirsch in 477) [ClassicSimilarity], result of:
            0.51291007 = score(doc=477,freq=1.0), product of:
              0.6390363 = queryWeight, product of:
                5.2053695 = boost
                8.561393 = idf(docFreq=22, maxDocs=44218)
                0.014339353 = queryNorm
              0.80263054 = fieldWeight in 477, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.561393 = idf(docFreq=22, maxDocs=44218)
                0.09375 = fieldNorm(doc=477)
        0.16 = coord(4/25)
    
  4. Hirsch, J.E.: ¬An index to quantify an individual's scientific research output that takes into account the effect of multiple coauthorship (2010) 0.14
    0.14467332 = sum of:
      0.14467332 = product of:
        0.6028055 = sum of:
          0.027666429 = weight(abstract_txt:into in 778) [ClassicSimilarity], result of:
            0.027666429 = score(doc=778,freq=1.0), product of:
              0.059771977 = queryWeight, product of:
                1.1256999 = boost
                3.7029297 = idf(docFreq=2962, maxDocs=44218)
                0.014339353 = queryNorm
              0.46286622 = fieldWeight in 778, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.7029297 = idf(docFreq=2962, maxDocs=44218)
                0.125 = fieldNorm(doc=778)
          0.03845938 = weight(abstract_txt:number in 778) [ClassicSimilarity], result of:
            0.03845938 = score(doc=778,freq=1.0), product of:
              0.07444984 = queryWeight, product of:
                1.2563356 = boost
                4.132649 = idf(docFreq=1927, maxDocs=44218)
                0.014339353 = queryNorm
              0.5165811 = fieldWeight in 778, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.132649 = idf(docFreq=1927, maxDocs=44218)
                0.125 = fieldNorm(doc=778)
          0.17647824 = weight(abstract_txt:coauthors in 778) [ClassicSimilarity], result of:
            0.17647824 = score(doc=778,freq=1.0), product of:
              0.16317226 = queryWeight, product of:
                1.3151703 = boost
                8.652365 = idf(docFreq=20, maxDocs=44218)
                0.014339353 = queryNorm
              1.0815456 = fieldWeight in 778, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.652365 = idf(docFreq=20, maxDocs=44218)
                0.125 = fieldNorm(doc=778)
          0.07387787 = weight(abstract_txt:multiple in 778) [ClassicSimilarity], result of:
            0.07387787 = score(doc=778,freq=1.0), product of:
              0.11504608 = queryWeight, product of:
                1.5617435 = boost
                5.137272 = idf(docFreq=705, maxDocs=44218)
                0.014339353 = queryNorm
              0.642159 = fieldWeight in 778, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.137272 = idf(docFreq=705, maxDocs=44218)
                0.125 = fieldNorm(doc=778)
          0.07999254 = weight(abstract_txt:papers in 778) [ClassicSimilarity], result of:
            0.07999254 = score(doc=778,freq=1.0), product of:
              0.121309616 = queryWeight, product of:
                1.6036937 = boost
                5.2752647 = idf(docFreq=614, maxDocs=44218)
                0.014339353 = queryNorm
              0.6594081 = fieldWeight in 778, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2752647 = idf(docFreq=614, maxDocs=44218)
                0.125 = fieldNorm(doc=778)
          0.20633101 = weight(abstract_txt:index in 778) [ClassicSimilarity], result of:
            0.20633101 = score(doc=778,freq=2.0), product of:
              0.2457774 = queryWeight, product of:
                3.609232 = boost
                4.74895 = idf(docFreq=1040, maxDocs=44218)
                0.014339353 = queryNorm
              0.83950365 = fieldWeight in 778, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.74895 = idf(docFreq=1040, maxDocs=44218)
                0.125 = fieldNorm(doc=778)
        0.24 = coord(6/25)
    
  5. Egghe, L.: Mathematical theory of the h- and g-index in case of fractional counting of authorship (2008) 0.12
    0.11835399 = sum of:
      0.11835399 = product of:
        0.7397125 = sum of:
          0.083644025 = weight(abstract_txt:coauthorship in 2004) [ClassicSimilarity], result of:
            0.083644025 = score(doc=2004,freq=1.0), product of:
              0.13569239 = queryWeight, product of:
                1.199324 = boost
                7.890225 = idf(docFreq=44, maxDocs=44218)
                0.014339353 = queryNorm
              0.61642385 = fieldWeight in 2004, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.890225 = idf(docFreq=44, maxDocs=44218)
                0.078125 = fieldNorm(doc=2004)
          0.07070409 = weight(abstract_txt:papers in 2004) [ClassicSimilarity], result of:
            0.07070409 = score(doc=2004,freq=2.0), product of:
              0.121309616 = queryWeight, product of:
                1.6036937 = boost
                5.2752647 = idf(docFreq=614, maxDocs=44218)
                0.014339353 = queryNorm
              0.5828399 = fieldWeight in 2004, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.2752647 = idf(docFreq=614, maxDocs=44218)
                0.078125 = fieldNorm(doc=2004)
          0.1579393 = weight(abstract_txt:index in 2004) [ClassicSimilarity], result of:
            0.1579393 = score(doc=2004,freq=3.0), product of:
              0.2457774 = queryWeight, product of:
                3.609232 = boost
                4.74895 = idf(docFreq=1040, maxDocs=44218)
                0.014339353 = queryNorm
              0.64261115 = fieldWeight in 2004, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.74895 = idf(docFreq=1040, maxDocs=44218)
                0.078125 = fieldNorm(doc=2004)
          0.42742506 = weight(abstract_txt:hirsch in 2004) [ClassicSimilarity], result of:
            0.42742506 = score(doc=2004,freq=1.0), product of:
              0.6390363 = queryWeight, product of:
                5.2053695 = boost
                8.561393 = idf(docFreq=22, maxDocs=44218)
                0.014339353 = queryNorm
              0.6688588 = fieldWeight in 2004, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.561393 = idf(docFreq=22, maxDocs=44218)
                0.078125 = fieldNorm(doc=2004)
        0.16 = coord(4/25)