Document (#36943)

Author
Huang, M.-H.
Lin, C.-S.
Chen, D.-Z.
Title
Counting methods, country rank changes, and counting inflation in the assessment of national research productivity and impact
Source
Journal of the American Society for Information Science and Technology. 62(2011) no.12, S.2427-2436
Year
2011
Abstract
The counting of papers and citations is fundamental to the assessment of research productivity and impact. In an age of increasing scientific collaboration across national borders, the counting of papers produced by collaboration between multiple countries, and citations of such papers, raises concerns in country-level research evaluation. In this study, we compared the number counts and country ranks resulting from five different counting methods. We also observed inflation depending on the method used. Using the 1989 to 2008 physics papers indexed in ISI's Web of Science as our sample, we analyzed the counting results in terms of paper count (research productivity) as well as citation count and citation-paper ratio (CP ratio) based evaluation (research impact). The results show that at the country-level assessment, the selection of counting method had only minor influence on the number counts and country rankings in each assessment. However, the influences of counting methods varied between paper count, citation count, and CP ratio based evaluation. The findings also suggest that the popular counting method (whole counting) that gives each collaborating country one full credit may not be the best counting method. Straight counting that accredits only the first or the corresponding author or fractional counting that accredits each collaborator with partial and weighted credit might be the better choices.
Theme
Informetrie
Object
Web of Science

Similar documents (author)

  1. Huang, Z.; Chung, Z.W.; Chen, H.: ¬A graph model for e-commerce recommender systems (2004) 3.53 
    3.5316157 = sum of:
  3.5316157 = sum of:
    1.3576634 = weight(author_txt:chen in 1501) [ClassicSimilarity], result of:
      1.3576634 = score(doc=1501,freq=1.0), product of:
        0.58994085 = queryWeight, product of:
          6.136947 = idf(docFreq=260, maxDocs=44421)
          0.096129365 = queryNorm
        2.3013551 = fieldWeight in 1501, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          6.136947 = idf(docFreq=260, maxDocs=44421)
          0.375 = fieldNorm(doc=1501)
    2.1739523 = weight(author_txt:huang in 1501) [ClassicSimilarity], result of:
      2.1739523 = score(doc=1501,freq=1.0), product of:
        0.8074465 = queryWeight, product of:
          1.1699106 = boost
          7.179679 = idf(docFreq=91, maxDocs=44421)
          0.096129365 = queryNorm
        2.6923795 = fieldWeight in 1501, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.179679 = idf(docFreq=91, maxDocs=44421)
          0.375 = fieldNorm(doc=1501)
  2. Huang, C.; Fu, T.; Chen, H.: Text-based video content classification for online video-sharing sites (2010) 3.53 
    3.5316157 = sum of:
  3.5316157 = sum of:
    1.3576634 = weight(author_txt:chen in 439) [ClassicSimilarity], result of:
      1.3576634 = score(doc=439,freq=1.0), product of:
        0.58994085 = queryWeight, product of:
          6.136947 = idf(docFreq=260, maxDocs=44421)
          0.096129365 = queryNorm
        2.3013551 = fieldWeight in 439, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          6.136947 = idf(docFreq=260, maxDocs=44421)
          0.375 = fieldNorm(doc=439)
    2.1739523 = weight(author_txt:huang in 439) [ClassicSimilarity], result of:
      2.1739523 = score(doc=439,freq=1.0), product of:
        0.8074465 = queryWeight, product of:
          1.1699106 = boost
          7.179679 = idf(docFreq=91, maxDocs=44421)
          0.096129365 = queryNorm
        2.6923795 = fieldWeight in 439, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.179679 = idf(docFreq=91, maxDocs=44421)
          0.375 = fieldNorm(doc=439)
  3. Huang, M.-H.; Huang, W.-T.; Chang, C.-C.; Chen, D. Z.; Lin, C.-P.: The greater scattering phenomenon beyond Bradford's law in patent citation (2014) 2.95 
    2.9547307 = sum of:
  2.9547307 = sum of:
    0.9051089 = weight(author_txt:chen in 2352) [ClassicSimilarity], result of:
      0.9051089 = score(doc=2352,freq=1.0), product of:
        0.58994085 = queryWeight, product of:
          6.136947 = idf(docFreq=260, maxDocs=44421)
          0.096129365 = queryNorm
        1.5342368 = fieldWeight in 2352, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          6.136947 = idf(docFreq=260, maxDocs=44421)
          0.25 = fieldNorm(doc=2352)
    2.0496218 = weight(author_txt:huang in 2352) [ClassicSimilarity], result of:
      2.0496218 = score(doc=2352,freq=2.0), product of:
        0.8074465 = queryWeight, product of:
          1.1699106 = boost
          7.179679 = idf(docFreq=91, maxDocs=44421)
          0.096129365 = queryNorm
        2.5383997 = fieldWeight in 2352, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          7.179679 = idf(docFreq=91, maxDocs=44421)
          0.25 = fieldNorm(doc=2352)
  4. Chen, Z.; Huang, Y.; Tian, J.; Liu, X.; Fu, K.; Huang, T.: Joint model for subsentence-level sentiment analysis with Markov logic (2015) 2.95 
    2.9547307 = sum of:
  2.9547307 = sum of:
    0.9051089 = weight(author_txt:chen in 3210) [ClassicSimilarity], result of:
      0.9051089 = score(doc=3210,freq=1.0), product of:
        0.58994085 = queryWeight, product of:
          6.136947 = idf(docFreq=260, maxDocs=44421)
          0.096129365 = queryNorm
        1.5342368 = fieldWeight in 3210, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          6.136947 = idf(docFreq=260, maxDocs=44421)
          0.25 = fieldNorm(doc=3210)
    2.0496218 = weight(author_txt:huang in 3210) [ClassicSimilarity], result of:
      2.0496218 = score(doc=3210,freq=2.0), product of:
        0.8074465 = queryWeight, product of:
          1.1699106 = boost
          7.179679 = idf(docFreq=91, maxDocs=44421)
          0.096129365 = queryNorm
        2.5383997 = fieldWeight in 3210, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          7.179679 = idf(docFreq=91, maxDocs=44421)
          0.25 = fieldNorm(doc=3210)
  5. Zheng, R.; Li, J.; Chen, H.; Huang, Z.: ¬A framework for authorship identification of online messages : writing-style features and classification techniques (2006) 2.94 
    2.9430132 = sum of:
  2.9430132 = sum of:
    1.1313862 = weight(author_txt:chen in 276) [ClassicSimilarity], result of:
      1.1313862 = score(doc=276,freq=1.0), product of:
        0.58994085 = queryWeight, product of:
          6.136947 = idf(docFreq=260, maxDocs=44421)
          0.096129365 = queryNorm
        1.917796 = fieldWeight in 276, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          6.136947 = idf(docFreq=260, maxDocs=44421)
          0.3125 = fieldNorm(doc=276)
    1.811627 = weight(author_txt:huang in 276) [ClassicSimilarity], result of:
      1.811627 = score(doc=276,freq=1.0), product of:
        0.8074465 = queryWeight, product of:
          1.1699106 = boost
          7.179679 = idf(docFreq=91, maxDocs=44421)
          0.096129365 = queryNorm
        2.2436497 = fieldWeight in 276, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.179679 = idf(docFreq=91, maxDocs=44421)
          0.3125 = fieldNorm(doc=276)

Similar documents (content)

  1. Frohlich, C.; Resler, L.: Analysis of publications and citations from a geophysics research institute (2001) 0.35 
    0.35251915 = sum of:
  0.35251915 = product of:
    0.73441494 = sum of:
      0.010641823 = weight(abstract_txt:level in 6797) [ClassicSimilarity], result of:
        0.010641823 = score(doc=6797,freq=1.0), product of:
          0.04329019 = queryWeight, product of:
            1.0266246 = boost
            4.4950905 = idf(docFreq=1347, maxDocs=44421)
            0.0093807895 = queryNorm
          0.24582526 = fieldWeight in 6797, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.4950905 = idf(docFreq=1347, maxDocs=44421)
            0.0546875 = fieldNorm(doc=6797)
      0.007289982 = weight(abstract_txt:paper in 6797) [ClassicSimilarity], result of:
        0.007289982 = score(doc=6797,freq=1.0), product of:
          0.03850882 = queryWeight, product of:
            1.1858852 = boost
            3.4616103 = idf(docFreq=3788, maxDocs=44421)
            0.0093807895 = queryNorm
          0.18930681 = fieldWeight in 6797, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.4616103 = idf(docFreq=3788, maxDocs=44421)
            0.0546875 = fieldNorm(doc=6797)
      0.025111938 = weight(abstract_txt:citations in 6797) [ClassicSimilarity], result of:
        0.025111938 = score(doc=6797,freq=2.0), product of:
          0.060900707 = queryWeight, product of:
            1.2176658 = boost
            5.331567 = idf(docFreq=583, maxDocs=44421)
            0.0093807895 = queryNorm
          0.4123423 = fieldWeight in 6797, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.331567 = idf(docFreq=583, maxDocs=44421)
            0.0546875 = fieldNorm(doc=6797)
      0.0077486923 = weight(abstract_txt:that in 6797) [ClassicSimilarity], result of:
        0.0077486923 = score(doc=6797,freq=4.0), product of:
          0.029956503 = queryWeight, product of:
            1.3503069 = boost
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.0093807895 = queryNorm
          0.2586648 = fieldWeight in 6797, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.0546875 = fieldNorm(doc=6797)
      0.021654394 = weight(abstract_txt:methods in 6797) [ClassicSimilarity], result of:
        0.021654394 = score(doc=6797,freq=3.0), product of:
          0.055173796 = queryWeight, product of:
            1.419479 = boost
            4.1434727 = idf(docFreq=1915, maxDocs=44421)
            0.0093807895 = queryNorm
          0.39247605 = fieldWeight in 6797, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            4.1434727 = idf(docFreq=1915, maxDocs=44421)
            0.0546875 = fieldNorm(doc=6797)
      0.035599064 = weight(abstract_txt:citation in 6797) [ClassicSimilarity], result of:
        0.035599064 = score(doc=6797,freq=3.0), product of:
          0.076853074 = queryWeight, product of:
            1.6753023 = boost
            4.890223 = idf(docFreq=907, maxDocs=44421)
            0.0093807895 = queryNorm
          0.4632094 = fieldWeight in 6797, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            4.890223 = idf(docFreq=907, maxDocs=44421)
            0.0546875 = fieldNorm(doc=6797)
      0.016002586 = weight(abstract_txt:research in 6797) [ClassicSimilarity], result of:
        0.016002586 = score(doc=6797,freq=3.0), product of:
          0.05347021 = queryWeight, product of:
            1.8040262 = boost
            3.159582 = idf(docFreq=5124, maxDocs=44421)
            0.0093807895 = queryNorm
          0.2992804 = fieldWeight in 6797, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            3.159582 = idf(docFreq=5124, maxDocs=44421)
            0.0546875 = fieldNorm(doc=6797)
      0.021336474 = weight(abstract_txt:method in 6797) [ClassicSimilarity], result of:
        0.021336474 = score(doc=6797,freq=1.0), product of:
          0.08672359 = queryWeight, product of:
            2.0549467 = boost
            4.4988065 = idf(docFreq=1342, maxDocs=44421)
            0.0093807895 = queryNorm
          0.24602848 = fieldWeight in 6797, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.4988065 = idf(docFreq=1342, maxDocs=44421)
            0.0546875 = fieldNorm(doc=6797)
      0.034206163 = weight(abstract_txt:papers in 6797) [ClassicSimilarity], result of:
        0.034206163 = score(doc=6797,freq=1.0), product of:
          0.11879324 = queryWeight, product of:
            2.4050703 = boost
            5.2653174 = idf(docFreq=623, maxDocs=44421)
            0.0093807895 = queryNorm
          0.28794706 = fieldWeight in 6797, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.2653174 = idf(docFreq=623, maxDocs=44421)
            0.0546875 = fieldNorm(doc=6797)
      0.07736655 = weight(abstract_txt:ratio in 6797) [ClassicSimilarity], result of:
        0.07736655 = score(doc=6797,freq=1.0), product of:
          0.1859708 = queryWeight, product of:
            2.6060631 = boost
            7.607123 = idf(docFreq=59, maxDocs=44421)
            0.0093807895 = queryNorm
          0.41601452 = fieldWeight in 6797, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.607123 = idf(docFreq=59, maxDocs=44421)
            0.0546875 = fieldNorm(doc=6797)
      0.14220217 = weight(abstract_txt:count in 6797) [ClassicSimilarity], result of:
        0.14220217 = score(doc=6797,freq=2.0), product of:
          0.24377152 = queryWeight, product of:
            3.445271 = boost
            7.5425844 = idf(docFreq=63, maxDocs=44421)
            0.0093807895 = queryNorm
          0.583342 = fieldWeight in 6797, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.5425844 = idf(docFreq=63, maxDocs=44421)
            0.0546875 = fieldNorm(doc=6797)
      0.33525506 = weight(abstract_txt:counting in 6797) [ClassicSimilarity], result of:
        0.33525506 = score(doc=6797,freq=1.0), product of:
          0.80587345 = queryWeight, product of:
            11.29294 = boost
            7.607123 = idf(docFreq=59, maxDocs=44421)
            0.0093807895 = queryNorm
          0.41601452 = fieldWeight in 6797, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.607123 = idf(docFreq=59, maxDocs=44421)
            0.0546875 = fieldNorm(doc=6797)
    0.48 = coord(12/25)
  2. Huang, S.; Qian, J.; Huang, Y.; Lu, W.; Bu, Y.; Yang, J.; Cheng, Q.: Disclosing the relationship between citation structure and future impact of a publication (2022) 0.34 
    0.3366635 = sum of:
  0.3366635 = product of:
    0.76514435 = sum of:
      0.014430421 = weight(abstract_txt:paper in 1622) [ClassicSimilarity], result of:
        0.014430421 = score(doc=1622,freq=3.0), product of:
          0.03850882 = queryWeight, product of:
            1.1858852 = boost
            3.4616103 = idf(docFreq=3788, maxDocs=44421)
            0.0093807895 = queryNorm
          0.3747303 = fieldWeight in 1622, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            3.4616103 = idf(docFreq=3788, maxDocs=44421)
            0.0625 = fieldNorm(doc=1622)
      0.053691585 = weight(abstract_txt:citations in 1622) [ClassicSimilarity], result of:
        0.053691585 = score(doc=1622,freq=7.0), product of:
          0.060900707 = queryWeight, product of:
            1.2176658 = boost
            5.331567 = idf(docFreq=583, maxDocs=44421)
            0.0093807895 = queryNorm
          0.881625 = fieldWeight in 1622, product of:
            2.6457512 = tf(freq=7.0), with freq of:
              7.0 = termFreq=7.0
            5.331567 = idf(docFreq=583, maxDocs=44421)
            0.0625 = fieldNorm(doc=1622)
      0.006261889 = weight(abstract_txt:that in 1622) [ClassicSimilarity], result of:
        0.006261889 = score(doc=1622,freq=2.0), product of:
          0.029956503 = queryWeight, product of:
            1.3503069 = boost
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.0093807895 = queryNorm
          0.20903271 = fieldWeight in 1622, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.0625 = fieldNorm(doc=1622)
      0.014023346 = weight(abstract_txt:each in 1622) [ClassicSimilarity], result of:
        0.014023346 = score(doc=1622,freq=1.0), product of:
          0.054489862 = queryWeight, product of:
            1.4106536 = boost
            4.1177115 = idf(docFreq=1965, maxDocs=44421)
            0.0093807895 = queryNorm
          0.25735697 = fieldWeight in 1622, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.1177115 = idf(docFreq=1965, maxDocs=44421)
            0.0625 = fieldNorm(doc=1622)
      0.0142881945 = weight(abstract_txt:methods in 1622) [ClassicSimilarity], result of:
        0.0142881945 = score(doc=1622,freq=1.0), product of:
          0.055173796 = queryWeight, product of:
            1.419479 = boost
            4.1434727 = idf(docFreq=1915, maxDocs=44421)
            0.0093807895 = queryNorm
          0.25896704 = fieldWeight in 1622, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.1434727 = idf(docFreq=1915, maxDocs=44421)
            0.0625 = fieldNorm(doc=1622)
      0.03326903 = weight(abstract_txt:impact in 1622) [ClassicSimilarity], result of:
        0.03326903 = score(doc=1622,freq=3.0), product of:
          0.0672049 = queryWeight, product of:
            1.5666177 = boost
            4.572972 = idf(docFreq=1246, maxDocs=44421)
            0.0093807895 = queryNorm
          0.49503872 = fieldWeight in 1622, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            4.572972 = idf(docFreq=1246, maxDocs=44421)
            0.0625 = fieldNorm(doc=1622)
      0.057536785 = weight(abstract_txt:citation in 1622) [ClassicSimilarity], result of:
        0.057536785 = score(doc=1622,freq=6.0), product of:
          0.076853074 = queryWeight, product of:
            1.6753023 = boost
            4.890223 = idf(docFreq=907, maxDocs=44421)
            0.0093807895 = queryNorm
          0.7486595 = fieldWeight in 1622, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            4.890223 = idf(docFreq=907, maxDocs=44421)
            0.0625 = fieldNorm(doc=1622)
      0.03448495 = weight(abstract_txt:method in 1622) [ClassicSimilarity], result of:
        0.03448495 = score(doc=1622,freq=2.0), product of:
          0.08672359 = queryWeight, product of:
            2.0549467 = boost
            4.4988065 = idf(docFreq=1342, maxDocs=44421)
            0.0093807895 = queryNorm
          0.39764208 = fieldWeight in 1622, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.4988065 = idf(docFreq=1342, maxDocs=44421)
            0.0625 = fieldNorm(doc=1622)
      0.039092757 = weight(abstract_txt:papers in 1622) [ClassicSimilarity], result of:
        0.039092757 = score(doc=1622,freq=1.0), product of:
          0.11879324 = queryWeight, product of:
            2.4050703 = boost
            5.2653174 = idf(docFreq=623, maxDocs=44421)
            0.0093807895 = queryNorm
          0.32908234 = fieldWeight in 1622, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.2653174 = idf(docFreq=623, maxDocs=44421)
            0.0625 = fieldNorm(doc=1622)
      0.114916705 = weight(abstract_txt:count in 1622) [ClassicSimilarity], result of:
        0.114916705 = score(doc=1622,freq=1.0), product of:
          0.24377152 = queryWeight, product of:
            3.445271 = boost
            7.5425844 = idf(docFreq=63, maxDocs=44421)
            0.0093807895 = queryNorm
          0.47141153 = fieldWeight in 1622, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.5425844 = idf(docFreq=63, maxDocs=44421)
            0.0625 = fieldNorm(doc=1622)
      0.38314864 = weight(abstract_txt:counting in 1622) [ClassicSimilarity], result of:
        0.38314864 = score(doc=1622,freq=1.0), product of:
          0.80587345 = queryWeight, product of:
            11.29294 = boost
            7.607123 = idf(docFreq=59, maxDocs=44421)
            0.0093807895 = queryNorm
          0.47544518 = fieldWeight in 1622, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.607123 = idf(docFreq=59, maxDocs=44421)
            0.0625 = fieldNorm(doc=1622)
    0.44 = coord(11/25)
  3. Leydesdorff, L.; Radicchi, F.; Bornmann, L.; Castellano, C.; Nooy, W. de: Field-normalized impact factors (IFs) : a comparison of rescaling and fractionally counted IFs (2013) 0.32 
    0.3243016 = sum of:
  0.3243016 = product of:
    1.0134425 = sum of:
      0.016307376 = weight(abstract_txt:national in 2108) [ClassicSimilarity], result of:
        0.016307376 = score(doc=2108,freq=1.0), product of:
          0.04536284 = queryWeight, product of:
            1.0509137 = boost
            4.6014404 = idf(docFreq=1211, maxDocs=44421)
            0.0093807895 = queryNorm
          0.35948753 = fieldWeight in 2108, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.6014404 = idf(docFreq=1211, maxDocs=44421)
            0.078125 = fieldNorm(doc=2108)
      0.04393674 = weight(abstract_txt:citations in 2108) [ClassicSimilarity], result of:
        0.04393674 = score(doc=2108,freq=3.0), product of:
          0.060900707 = queryWeight, product of:
            1.2176658 = boost
            5.331567 = idf(docFreq=583, maxDocs=44421)
            0.0093807895 = queryNorm
          0.7214488 = fieldWeight in 2108, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            5.331567 = idf(docFreq=583, maxDocs=44421)
            0.078125 = fieldNorm(doc=2108)
      0.00553478 = weight(abstract_txt:that in 2108) [ClassicSimilarity], result of:
        0.00553478 = score(doc=2108,freq=1.0), product of:
          0.029956503 = queryWeight, product of:
            1.3503069 = boost
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.0093807895 = queryNorm
          0.18476056 = fieldWeight in 2108, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.078125 = fieldNorm(doc=2108)
      0.017529182 = weight(abstract_txt:each in 2108) [ClassicSimilarity], result of:
        0.017529182 = score(doc=2108,freq=1.0), product of:
          0.054489862 = queryWeight, product of:
            1.4106536 = boost
            4.1177115 = idf(docFreq=1965, maxDocs=44421)
            0.0093807895 = queryNorm
          0.32169622 = fieldWeight in 2108, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.1177115 = idf(docFreq=1965, maxDocs=44421)
            0.078125 = fieldNorm(doc=2108)
      0.017860243 = weight(abstract_txt:methods in 2108) [ClassicSimilarity], result of:
        0.017860243 = score(doc=2108,freq=1.0), product of:
          0.055173796 = queryWeight, product of:
            1.419479 = boost
            4.1434727 = idf(docFreq=1915, maxDocs=44421)
            0.0093807895 = queryNorm
          0.3237088 = fieldWeight in 2108, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.1434727 = idf(docFreq=1915, maxDocs=44421)
            0.078125 = fieldNorm(doc=2108)
      0.024009852 = weight(abstract_txt:impact in 2108) [ClassicSimilarity], result of:
        0.024009852 = score(doc=2108,freq=1.0), product of:
          0.0672049 = queryWeight, product of:
            1.5666177 = boost
            4.572972 = idf(docFreq=1246, maxDocs=44421)
            0.0093807895 = queryNorm
          0.35726342 = fieldWeight in 2108, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.572972 = idf(docFreq=1246, maxDocs=44421)
            0.078125 = fieldNorm(doc=2108)
      0.05872323 = weight(abstract_txt:citation in 2108) [ClassicSimilarity], result of:
        0.05872323 = score(doc=2108,freq=4.0), product of:
          0.076853074 = queryWeight, product of:
            1.6753023 = boost
            4.890223 = idf(docFreq=907, maxDocs=44421)
            0.0093807895 = queryNorm
          0.76409733 = fieldWeight in 2108, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            4.890223 = idf(docFreq=907, maxDocs=44421)
            0.078125 = fieldNorm(doc=2108)
      0.82954115 = weight(abstract_txt:counting in 2108) [ClassicSimilarity], result of:
        0.82954115 = score(doc=2108,freq=3.0), product of:
          0.80587345 = queryWeight, product of:
            11.29294 = boost
            7.607123 = idf(docFreq=59, maxDocs=44421)
            0.0093807895 = queryNorm
          1.029369 = fieldWeight in 2108, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            7.607123 = idf(docFreq=59, maxDocs=44421)
            0.078125 = fieldNorm(doc=2108)
    0.32 = coord(8/25)
  4. Zhao, D.; Strotmann, A.: Counting first, last, or all authors in citation analysis : a comprehensive comparison in the highly collaborative stem cell research field (2011) 0.29 
    0.28870624 = sum of:
  0.28870624 = product of:
    1.2029427 = sum of:
      0.004427824 = weight(abstract_txt:that in 368) [ClassicSimilarity], result of:
        0.004427824 = score(doc=368,freq=1.0), product of:
          0.029956503 = queryWeight, product of:
            1.3503069 = boost
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.0093807895 = queryNorm
          0.14780845 = fieldWeight in 368, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.0625 = fieldNorm(doc=368)
      0.0142881945 = weight(abstract_txt:methods in 368) [ClassicSimilarity], result of:
        0.0142881945 = score(doc=368,freq=1.0), product of:
          0.055173796 = queryWeight, product of:
            1.419479 = boost
            4.1434727 = idf(docFreq=1915, maxDocs=44421)
            0.0093807895 = queryNorm
          0.25896704 = fieldWeight in 368, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.1434727 = idf(docFreq=1915, maxDocs=44421)
            0.0625 = fieldNorm(doc=368)
      0.052523658 = weight(abstract_txt:citation in 368) [ClassicSimilarity], result of:
        0.052523658 = score(doc=368,freq=5.0), product of:
          0.076853074 = queryWeight, product of:
            1.6753023 = boost
            4.890223 = idf(docFreq=907, maxDocs=44421)
            0.0093807895 = queryNorm
          0.6834295 = fieldWeight in 368, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            4.890223 = idf(docFreq=907, maxDocs=44421)
            0.0625 = fieldNorm(doc=368)
      0.023610573 = weight(abstract_txt:research in 368) [ClassicSimilarity], result of:
        0.023610573 = score(doc=368,freq=5.0), product of:
          0.05347021 = queryWeight, product of:
            1.8040262 = boost
            3.159582 = idf(docFreq=5124, maxDocs=44421)
            0.0093807895 = queryNorm
          0.441565 = fieldWeight in 368, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            3.159582 = idf(docFreq=5124, maxDocs=44421)
            0.0625 = fieldNorm(doc=368)
      0.02438454 = weight(abstract_txt:method in 368) [ClassicSimilarity], result of:
        0.02438454 = score(doc=368,freq=1.0), product of:
          0.08672359 = queryWeight, product of:
            2.0549467 = boost
            4.4988065 = idf(docFreq=1342, maxDocs=44421)
            0.0093807895 = queryNorm
          0.2811754 = fieldWeight in 368, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.4988065 = idf(docFreq=1342, maxDocs=44421)
            0.0625 = fieldNorm(doc=368)
      1.0837079 = weight(abstract_txt:counting in 368) [ClassicSimilarity], result of:
        1.0837079 = score(doc=368,freq=8.0), product of:
          0.80587345 = queryWeight, product of:
            11.29294 = boost
            7.607123 = idf(docFreq=59, maxDocs=44421)
            0.0093807895 = queryNorm
          1.344762 = fieldWeight in 368, product of:
            2.828427 = tf(freq=8.0), with freq of:
              8.0 = termFreq=8.0
            7.607123 = idf(docFreq=59, maxDocs=44421)
            0.0625 = fieldNorm(doc=368)
    0.24 = coord(6/25)
  5. Kretschmer, H.; Rousseau, R.: Author inflation leads to a breakdown of Lotka's law : in and out of context (2001) 0.26 
    0.26495272 = sum of:
  0.26495272 = product of:
    0.8279773 = sum of:
      0.01041426 = weight(abstract_txt:paper in 205) [ClassicSimilarity], result of:
        0.01041426 = score(doc=205,freq=1.0), product of:
          0.03850882 = queryWeight, product of:
            1.1858852 = boost
            3.4616103 = idf(docFreq=3788, maxDocs=44421)
            0.0093807895 = queryNorm
          0.2704383 = fieldWeight in 205, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.4616103 = idf(docFreq=3788, maxDocs=44421)
            0.078125 = fieldNorm(doc=205)
      0.00553478 = weight(abstract_txt:that in 205) [ClassicSimilarity], result of:
        0.00553478 = score(doc=205,freq=1.0), product of:
          0.029956503 = queryWeight, product of:
            1.3503069 = boost
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.0093807895 = queryNorm
          0.18476056 = fieldWeight in 205, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            2.3649352 = idf(docFreq=11344, maxDocs=44421)
            0.078125 = fieldNorm(doc=205)
      0.024790006 = weight(abstract_txt:each in 205) [ClassicSimilarity], result of:
        0.024790006 = score(doc=205,freq=2.0), product of:
          0.054489862 = queryWeight, product of:
            1.4106536 = boost
            4.1177115 = idf(docFreq=1965, maxDocs=44421)
            0.0093807895 = queryNorm
          0.4549471 = fieldWeight in 205, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.1177115 = idf(docFreq=1965, maxDocs=44421)
            0.078125 = fieldNorm(doc=205)
      0.08530997 = weight(abstract_txt:credit in 205) [ClassicSimilarity], result of:
        0.08530997 = score(doc=205,freq=1.0), product of:
          0.13670279 = queryWeight, product of:
            1.8243393 = boost
            7.9878955 = idf(docFreq=40, maxDocs=44421)
            0.0093807895 = queryNorm
          0.6240543 = fieldWeight in 205, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.9878955 = idf(docFreq=40, maxDocs=44421)
            0.078125 = fieldNorm(doc=205)
      0.030480674 = weight(abstract_txt:method in 205) [ClassicSimilarity], result of:
        0.030480674 = score(doc=205,freq=1.0), product of:
          0.08672359 = queryWeight, product of:
            2.0549467 = boost
            4.4988065 = idf(docFreq=1342, maxDocs=44421)
            0.0093807895 = queryNorm
          0.35146925 = fieldWeight in 205, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.4988065 = idf(docFreq=1342, maxDocs=44421)
            0.078125 = fieldNorm(doc=205)
      0.048865948 = weight(abstract_txt:papers in 205) [ClassicSimilarity], result of:
        0.048865948 = score(doc=205,freq=1.0), product of:
          0.11879324 = queryWeight, product of:
            2.4050703 = boost
            5.2653174 = idf(docFreq=623, maxDocs=44421)
            0.0093807895 = queryNorm
          0.41135293 = fieldWeight in 205, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.2653174 = idf(docFreq=623, maxDocs=44421)
            0.078125 = fieldNorm(doc=205)
      0.14364588 = weight(abstract_txt:count in 205) [ClassicSimilarity], result of:
        0.14364588 = score(doc=205,freq=1.0), product of:
          0.24377152 = queryWeight, product of:
            3.445271 = boost
            7.5425844 = idf(docFreq=63, maxDocs=44421)
            0.0093807895 = queryNorm
          0.5892644 = fieldWeight in 205, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.5425844 = idf(docFreq=63, maxDocs=44421)
            0.078125 = fieldNorm(doc=205)
      0.4789358 = weight(abstract_txt:counting in 205) [ClassicSimilarity], result of:
        0.4789358 = score(doc=205,freq=1.0), product of:
          0.80587345 = queryWeight, product of:
            11.29294 = boost
            7.607123 = idf(docFreq=59, maxDocs=44421)
            0.0093807895 = queryNorm
          0.59430647 = fieldWeight in 205, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.607123 = idf(docFreq=59, maxDocs=44421)
            0.078125 = fieldNorm(doc=205)
    0.32 = coord(8/25)