Document (#44036)

Author
Thelwall, M.
Kousha, K.
Stuart, E.
Makita, M.
Abdoli, M.
Wilson, P.
Levitt, J.
Title
In which fields are citations indicators of research quality?
Source
Journal of the Association for Information Science and Technology. 74(2023) no.8, S.941-953
Year
2023
Abstract
Citation counts are widely used as indicators of research quality to support or replace human peer review and for lists of top cited papers, researchers, and institutions. Nevertheless, the relationship between citations and research quality is poorly evidenced. We report the first large-scale science-wide academic evaluation of the relationship between research quality and citations (field normalized citation counts), correlating them for 87,739 journal articles in 34 field-based UK Units of Assessment (UoA). The two correlate positively in all academic fields, from very weak (0.1) to strong (0.5), reflecting broadly linear relationships in all fields. We give the first evidence that the correlations are positive even across the arts and humanities. The patterns are similar for the field classification schemes of Scopus and Dimensions.ai, although varying for some individual subjects and therefore more uncertain for these. We also show for the first time that no field has a citation threshold beyond which all articles are excellent quality, so lists of top cited articles are not pure collections of excellence, and neither is any top citation percentile indicator. Thus, while appropriately field normalized citations associate positively with research quality in all fields, they never perfectly reflect it, even at high values.
Content
Vgl.: https://asistdl.onlinelibrary.wiley.com/doi/10.1002/asi.24767. https://doi.org/10.1002/asi.24767
Theme
Informetrie
Citation indexing

Similar documents (author)

  1. Thelwall, M.; Kousha, K.; Abdoli, M.; Stuart, E.; Makita, M.; Wilson, P.; Levitt, J.: Do altmetric scores reflect article quality? : evidence from the UK Research Excellence Framework 2021 (2023) 5.14
    5.1424465 = sum of:
      5.1424465 = sum of:
        0.45681477 = weight(author_txt:thelwall in 1948) [ClassicSimilarity], result of:
          0.45681477 = score(doc=1948,freq=1.0), product of:
            0.26428485 = queryWeight, product of:
              6.9139757 = idf(docFreq=119, maxDocs=44421)
              0.03822473 = queryNorm
            1.7284939 = fieldWeight in 1948, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.9139757 = idf(docFreq=119, maxDocs=44421)
              0.25 = fieldNorm(doc=1948)
        0.47992155 = weight(author_txt:wilson in 1948) [ClassicSimilarity], result of:
          0.47992155 = score(doc=1948,freq=1.0), product of:
            0.27312347 = queryWeight, product of:
              1.0165843 = boost
              7.028639 = idf(docFreq=106, maxDocs=44421)
              0.03822473 = queryNorm
            1.7571597 = fieldWeight in 1948, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.028639 = idf(docFreq=106, maxDocs=44421)
              0.25 = fieldNorm(doc=1948)
        0.7903752 = weight(author_txt:kousha in 1948) [ClassicSimilarity], result of:
          0.7903752 = score(doc=1948,freq=1.0), product of:
            0.3808913 = queryWeight, product of:
              1.2005061 = boost
              8.30027 = idf(docFreq=29, maxDocs=44421)
              0.03822473 = queryNorm
            2.0750675 = fieldWeight in 1948, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.30027 = idf(docFreq=29, maxDocs=44421)
              0.25 = fieldNorm(doc=1948)
        0.9454671 = weight(author_txt:stuart in 1948) [ClassicSimilarity], result of:
          0.9454671 = score(doc=1948,freq=1.0), product of:
            0.42921656 = queryWeight, product of:
              1.2743893 = boost
              8.811096 = idf(docFreq=17, maxDocs=44421)
              0.03822473 = queryNorm
            2.202774 = fieldWeight in 1948, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.811096 = idf(docFreq=17, maxDocs=44421)
              0.25 = fieldNorm(doc=1948)
        1.1866132 = weight(author_txt:levitt in 1948) [ClassicSimilarity], result of:
          1.1866132 = score(doc=1948,freq=1.0), product of:
            0.49940357 = queryWeight, product of:
              1.3746423 = boost
              9.504243 = idf(docFreq=8, maxDocs=44421)
              0.03822473 = queryNorm
            2.3760607 = fieldWeight in 1948, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.504243 = idf(docFreq=8, maxDocs=44421)
              0.25 = fieldNorm(doc=1948)
        1.2832545 = weight(author_txt:abdoli in 1948) [ClassicSimilarity], result of:
          1.2832545 = score(doc=1948,freq=1.0), product of:
            0.5261635 = queryWeight, product of:
              1.410991 = boost
              9.755557 = idf(docFreq=6, maxDocs=44421)
              0.03822473 = queryNorm
            2.4388893 = fieldWeight in 1948, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.755557 = idf(docFreq=6, maxDocs=44421)
              0.25 = fieldNorm(doc=1948)
    
  2. Thelwall, M.; Kousha, K.; Abdoli, M.; Stuart, E.; Makita, M.; Wilson, P.; Levitt, J.: Why are coauthored academic articles more cited : higher quality or larger audience? (2023) 5.14
    5.1424465 = sum of:
      5.1424465 = sum of:
        0.45681477 = weight(author_txt:thelwall in 1997) [ClassicSimilarity], result of:
          0.45681477 = score(doc=1997,freq=1.0), product of:
            0.26428485 = queryWeight, product of:
              6.9139757 = idf(docFreq=119, maxDocs=44421)
              0.03822473 = queryNorm
            1.7284939 = fieldWeight in 1997, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.9139757 = idf(docFreq=119, maxDocs=44421)
              0.25 = fieldNorm(doc=1997)
        0.47992155 = weight(author_txt:wilson in 1997) [ClassicSimilarity], result of:
          0.47992155 = score(doc=1997,freq=1.0), product of:
            0.27312347 = queryWeight, product of:
              1.0165843 = boost
              7.028639 = idf(docFreq=106, maxDocs=44421)
              0.03822473 = queryNorm
            1.7571597 = fieldWeight in 1997, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.028639 = idf(docFreq=106, maxDocs=44421)
              0.25 = fieldNorm(doc=1997)
        0.7903752 = weight(author_txt:kousha in 1997) [ClassicSimilarity], result of:
          0.7903752 = score(doc=1997,freq=1.0), product of:
            0.3808913 = queryWeight, product of:
              1.2005061 = boost
              8.30027 = idf(docFreq=29, maxDocs=44421)
              0.03822473 = queryNorm
            2.0750675 = fieldWeight in 1997, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.30027 = idf(docFreq=29, maxDocs=44421)
              0.25 = fieldNorm(doc=1997)
        0.9454671 = weight(author_txt:stuart in 1997) [ClassicSimilarity], result of:
          0.9454671 = score(doc=1997,freq=1.0), product of:
            0.42921656 = queryWeight, product of:
              1.2743893 = boost
              8.811096 = idf(docFreq=17, maxDocs=44421)
              0.03822473 = queryNorm
            2.202774 = fieldWeight in 1997, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.811096 = idf(docFreq=17, maxDocs=44421)
              0.25 = fieldNorm(doc=1997)
        1.1866132 = weight(author_txt:levitt in 1997) [ClassicSimilarity], result of:
          1.1866132 = score(doc=1997,freq=1.0), product of:
            0.49940357 = queryWeight, product of:
              1.3746423 = boost
              9.504243 = idf(docFreq=8, maxDocs=44421)
              0.03822473 = queryNorm
            2.3760607 = fieldWeight in 1997, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.504243 = idf(docFreq=8, maxDocs=44421)
              0.25 = fieldNorm(doc=1997)
        1.2832545 = weight(author_txt:abdoli in 1997) [ClassicSimilarity], result of:
          1.2832545 = score(doc=1997,freq=1.0), product of:
            0.5261635 = queryWeight, product of:
              1.410991 = boost
              9.755557 = idf(docFreq=6, maxDocs=44421)
              0.03822473 = queryNorm
            2.4388893 = fieldWeight in 1997, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.755557 = idf(docFreq=6, maxDocs=44421)
              0.25 = fieldNorm(doc=1997)
    
  3. Thelwall, M.; Kousha, K.; Abdoli, M.; Stuart, E.; Makita, M.; Wilson, P.; Levitt, J.: Which international co-authorships produce higher quality journal articles? (2024) 5.14
    5.1424465 = sum of:
      5.1424465 = sum of:
        0.45681477 = weight(author_txt:thelwall in 2301) [ClassicSimilarity], result of:
          0.45681477 = score(doc=2301,freq=1.0), product of:
            0.26428485 = queryWeight, product of:
              6.9139757 = idf(docFreq=119, maxDocs=44421)
              0.03822473 = queryNorm
            1.7284939 = fieldWeight in 2301, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.9139757 = idf(docFreq=119, maxDocs=44421)
              0.25 = fieldNorm(doc=2301)
        0.47992155 = weight(author_txt:wilson in 2301) [ClassicSimilarity], result of:
          0.47992155 = score(doc=2301,freq=1.0), product of:
            0.27312347 = queryWeight, product of:
              1.0165843 = boost
              7.028639 = idf(docFreq=106, maxDocs=44421)
              0.03822473 = queryNorm
            1.7571597 = fieldWeight in 2301, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.028639 = idf(docFreq=106, maxDocs=44421)
              0.25 = fieldNorm(doc=2301)
        0.7903752 = weight(author_txt:kousha in 2301) [ClassicSimilarity], result of:
          0.7903752 = score(doc=2301,freq=1.0), product of:
            0.3808913 = queryWeight, product of:
              1.2005061 = boost
              8.30027 = idf(docFreq=29, maxDocs=44421)
              0.03822473 = queryNorm
            2.0750675 = fieldWeight in 2301, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.30027 = idf(docFreq=29, maxDocs=44421)
              0.25 = fieldNorm(doc=2301)
        0.9454671 = weight(author_txt:stuart in 2301) [ClassicSimilarity], result of:
          0.9454671 = score(doc=2301,freq=1.0), product of:
            0.42921656 = queryWeight, product of:
              1.2743893 = boost
              8.811096 = idf(docFreq=17, maxDocs=44421)
              0.03822473 = queryNorm
            2.202774 = fieldWeight in 2301, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.811096 = idf(docFreq=17, maxDocs=44421)
              0.25 = fieldNorm(doc=2301)
        1.1866132 = weight(author_txt:levitt in 2301) [ClassicSimilarity], result of:
          1.1866132 = score(doc=2301,freq=1.0), product of:
            0.49940357 = queryWeight, product of:
              1.3746423 = boost
              9.504243 = idf(docFreq=8, maxDocs=44421)
              0.03822473 = queryNorm
            2.3760607 = fieldWeight in 2301, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.504243 = idf(docFreq=8, maxDocs=44421)
              0.25 = fieldNorm(doc=2301)
        1.2832545 = weight(author_txt:abdoli in 2301) [ClassicSimilarity], result of:
          1.2832545 = score(doc=2301,freq=1.0), product of:
            0.5261635 = queryWeight, product of:
              1.410991 = boost
              9.755557 = idf(docFreq=6, maxDocs=44421)
              0.03822473 = queryNorm
            2.4388893 = fieldWeight in 2301, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.755557 = idf(docFreq=6, maxDocs=44421)
              0.25 = fieldNorm(doc=2301)
    
  4. Kousha, K.; Thelwall, M.; Abdoli, M.: ¬The role of online videos in research communication : a content analysis of YouTube videos cited in academic publications (2012) 1.90
    1.8978333 = sum of:
      1.8978333 = product of:
        3.7956667 = sum of:
          0.68522215 = weight(author_txt:thelwall in 1382) [ClassicSimilarity], result of:
            0.68522215 = score(doc=1382,freq=1.0), product of:
              0.26428485 = queryWeight, product of:
                6.9139757 = idf(docFreq=119, maxDocs=44421)
                0.03822473 = queryNorm
              2.592741 = fieldWeight in 1382, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9139757 = idf(docFreq=119, maxDocs=44421)
                0.375 = fieldNorm(doc=1382)
          1.1855627 = weight(author_txt:kousha in 1382) [ClassicSimilarity], result of:
            1.1855627 = score(doc=1382,freq=1.0), product of:
              0.3808913 = queryWeight, product of:
                1.2005061 = boost
                8.30027 = idf(docFreq=29, maxDocs=44421)
                0.03822473 = queryNorm
              3.1126013 = fieldWeight in 1382, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.30027 = idf(docFreq=29, maxDocs=44421)
                0.375 = fieldNorm(doc=1382)
          1.9248818 = weight(author_txt:abdoli in 1382) [ClassicSimilarity], result of:
            1.9248818 = score(doc=1382,freq=1.0), product of:
              0.5261635 = queryWeight, product of:
                1.410991 = boost
                9.755557 = idf(docFreq=6, maxDocs=44421)
                0.03822473 = queryNorm
              3.6583338 = fieldWeight in 1382, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.755557 = idf(docFreq=6, maxDocs=44421)
                0.375 = fieldNorm(doc=1382)
        0.5 = coord(3/6)
    
  5. Kousha, K.; Thelwall, M.; Abdoli, M.: Goodreads reviews to assess the wider impacts of books (2017) 1.90
    1.8978333 = sum of:
      1.8978333 = product of:
        3.7956667 = sum of:
          0.68522215 = weight(author_txt:thelwall in 4768) [ClassicSimilarity], result of:
            0.68522215 = score(doc=4768,freq=1.0), product of:
              0.26428485 = queryWeight, product of:
                6.9139757 = idf(docFreq=119, maxDocs=44421)
                0.03822473 = queryNorm
              2.592741 = fieldWeight in 4768, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9139757 = idf(docFreq=119, maxDocs=44421)
                0.375 = fieldNorm(doc=4768)
          1.1855627 = weight(author_txt:kousha in 4768) [ClassicSimilarity], result of:
            1.1855627 = score(doc=4768,freq=1.0), product of:
              0.3808913 = queryWeight, product of:
                1.2005061 = boost
                8.30027 = idf(docFreq=29, maxDocs=44421)
                0.03822473 = queryNorm
              3.1126013 = fieldWeight in 4768, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.30027 = idf(docFreq=29, maxDocs=44421)
                0.375 = fieldNorm(doc=4768)
          1.9248818 = weight(author_txt:abdoli in 4768) [ClassicSimilarity], result of:
            1.9248818 = score(doc=4768,freq=1.0), product of:
              0.5261635 = queryWeight, product of:
                1.410991 = boost
                9.755557 = idf(docFreq=6, maxDocs=44421)
                0.03822473 = queryNorm
              3.6583338 = fieldWeight in 4768, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.755557 = idf(docFreq=6, maxDocs=44421)
                0.375 = fieldNorm(doc=4768)
        0.5 = coord(3/6)
    

Similar documents (content)

  1. Thelwall, M.; Kousha, K.; Abdoli, M.; Stuart, E.; Makita, M.; Wilson, P.; Levitt, J.: Do altmetric scores reflect article quality? : evidence from the UK Research Excellence Framework 2021 (2023) 0.71
    0.7054943 = sum of:
      0.7054943 = product of:
        1.3567199 = sum of:
          0.078874074 = weight(abstract_txt:excellence in 1948) [ClassicSimilarity], result of:
            0.078874074 = score(doc=1948,freq=1.0), product of:
              0.15750031 = queryWeight, product of:
                8.0125885 = idf(docFreq=39, maxDocs=44421)
                0.019656608 = queryNorm
              0.5007868 = fieldWeight in 1948, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.0125885 = idf(docFreq=39, maxDocs=44421)
                0.0625 = fieldNorm(doc=1948)
          0.03126175 = weight(abstract_txt:academic in 1948) [ClassicSimilarity], result of:
            0.03126175 = score(doc=1948,freq=1.0), product of:
              0.10707237 = queryWeight, product of:
                1.1660388 = boost
                4.6714945 = idf(docFreq=1129, maxDocs=44421)
                0.019656608 = queryNorm
              0.2919684 = fieldWeight in 1948, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6714945 = idf(docFreq=1129, maxDocs=44421)
                0.0625 = fieldNorm(doc=1948)
          0.09499739 = weight(abstract_txt:indicators in 1948) [ClassicSimilarity], result of:
            0.09499739 = score(doc=1948,freq=2.0), product of:
              0.17829248 = queryWeight, product of:
                1.5046684 = boost
                6.0281444 = idf(docFreq=290, maxDocs=44421)
                0.019656608 = queryNorm
              0.5328177 = fieldWeight in 1948, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.0281444 = idf(docFreq=290, maxDocs=44421)
                0.0625 = fieldNorm(doc=1948)
          0.03316001 = weight(abstract_txt:first in 1948) [ClassicSimilarity], result of:
            0.03316001 = score(doc=1948,freq=1.0), product of:
              0.12748 = queryWeight, product of:
                1.5582637 = boost
                4.1619086 = idf(docFreq=1880, maxDocs=44421)
                0.019656608 = queryNorm
              0.2601193 = fieldWeight in 1948, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1619086 = idf(docFreq=1880, maxDocs=44421)
                0.0625 = fieldNorm(doc=1948)
          0.20179547 = weight(abstract_txt:counts in 1948) [ClassicSimilarity], result of:
            0.20179547 = score(doc=1948,freq=5.0), product of:
              0.21707985 = queryWeight, product of:
                1.6602904 = boost
                6.651612 = idf(docFreq=155, maxDocs=44421)
                0.019656608 = queryNorm
              0.929591 = fieldWeight in 1948, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                6.651612 = idf(docFreq=155, maxDocs=44421)
                0.0625 = fieldNorm(doc=1948)
          0.087002024 = weight(abstract_txt:articles in 1948) [ClassicSimilarity], result of:
            0.087002024 = score(doc=1948,freq=3.0), product of:
              0.16814275 = queryWeight, product of:
                1.7896124 = boost
                4.7798095 = idf(docFreq=1013, maxDocs=44421)
                0.019656608 = queryNorm
              0.51742953 = fieldWeight in 1948, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.7798095 = idf(docFreq=1013, maxDocs=44421)
                0.0625 = fieldNorm(doc=1948)
          0.1284375 = weight(abstract_txt:normalized in 1948) [ClassicSimilarity], result of:
            0.1284375 = score(doc=1948,freq=1.0), product of:
              0.27466068 = queryWeight, product of:
                1.8675512 = boost
                7.48196 = idf(docFreq=67, maxDocs=44421)
                0.019656608 = queryNorm
              0.4676225 = fieldWeight in 1948, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.48196 = idf(docFreq=67, maxDocs=44421)
                0.0625 = fieldNorm(doc=1948)
          0.041882753 = weight(abstract_txt:research in 1948) [ClassicSimilarity], result of:
            0.041882753 = score(doc=1948,freq=3.0), product of:
              0.122451745 = queryWeight, product of:
                1.9716362 = boost
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.019656608 = queryNorm
              0.34203476 = fieldWeight in 1948, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.0625 = fieldNorm(doc=1948)
          0.12422883 = weight(abstract_txt:citation in 1948) [ClassicSimilarity], result of:
            0.12422883 = score(doc=1948,freq=3.0), product of:
              0.23466757 = queryWeight, product of:
                2.44127 = boost
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.019656608 = queryNorm
              0.52938217 = fieldWeight in 1948, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.0625 = fieldNorm(doc=1948)
          0.07773165 = weight(abstract_txt:fields in 1948) [ClassicSimilarity], result of:
            0.07773165 = score(doc=1948,freq=1.0), product of:
              0.24759611 = queryWeight, product of:
                2.507617 = boost
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.019656608 = queryNorm
              0.31394535 = fieldWeight in 1948, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.0625 = fieldNorm(doc=1948)
          0.09294806 = weight(abstract_txt:citations in 1948) [ClassicSimilarity], result of:
            0.09294806 = score(doc=1948,freq=1.0), product of:
              0.27893656 = queryWeight, product of:
                2.661595 = boost
                5.331567 = idf(docFreq=583, maxDocs=44421)
                0.019656608 = queryNorm
              0.33322293 = fieldWeight in 1948, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.331567 = idf(docFreq=583, maxDocs=44421)
                0.0625 = fieldNorm(doc=1948)
          0.1386439 = weight(abstract_txt:field in 1948) [ClassicSimilarity], result of:
            0.1386439 = score(doc=1948,freq=4.0), product of:
              0.2471131 = queryWeight, product of:
                2.800865 = boost
                4.4884357 = idf(docFreq=1356, maxDocs=44421)
                0.019656608 = queryNorm
              0.56105447 = fieldWeight in 1948, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.4884357 = idf(docFreq=1356, maxDocs=44421)
                0.0625 = fieldNorm(doc=1948)
          0.22575642 = weight(abstract_txt:quality in 1948) [ClassicSimilarity], result of:
            0.22575642 = score(doc=1948,freq=6.0), product of:
              0.31750602 = queryWeight, product of:
                3.4778504 = boost
                4.6444306 = idf(docFreq=1160, maxDocs=44421)
                0.019656608 = queryNorm
              0.71103036 = fieldWeight in 1948, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                4.6444306 = idf(docFreq=1160, maxDocs=44421)
                0.0625 = fieldNorm(doc=1948)
        0.52 = coord(13/25)
    
  2. Maflahi, N.; Thelwall, M.: How quickly do publications get read? : the evolution of mendeley reader counts for new articles (2018) 0.41
    0.40673628 = sum of:
      0.40673628 = product of:
        0.9244006 = sum of:
          0.03126175 = weight(abstract_txt:academic in 15) [ClassicSimilarity], result of:
            0.03126175 = score(doc=15,freq=1.0), product of:
              0.10707237 = queryWeight, product of:
                1.1660388 = boost
                4.6714945 = idf(docFreq=1129, maxDocs=44421)
                0.019656608 = queryNorm
              0.2919684 = fieldWeight in 15, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6714945 = idf(docFreq=1129, maxDocs=44421)
                0.0625 = fieldNorm(doc=15)
          0.04045727 = weight(abstract_txt:even in 15) [ClassicSimilarity], result of:
            0.04045727 = score(doc=15,freq=1.0), product of:
              0.12715486 = queryWeight, product of:
                1.2706934 = boost
                5.0907717 = idf(docFreq=742, maxDocs=44421)
                0.019656608 = queryNorm
              0.31817323 = fieldWeight in 15, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0907717 = idf(docFreq=742, maxDocs=44421)
                0.0625 = fieldNorm(doc=15)
          0.11634757 = weight(abstract_txt:indicators in 15) [ClassicSimilarity], result of:
            0.11634757 = score(doc=15,freq=3.0), product of:
              0.17829248 = queryWeight, product of:
                1.5046684 = boost
                6.0281444 = idf(docFreq=290, maxDocs=44421)
                0.019656608 = queryNorm
              0.6525658 = fieldWeight in 15, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.0281444 = idf(docFreq=290, maxDocs=44421)
                0.0625 = fieldNorm(doc=15)
          0.046895333 = weight(abstract_txt:first in 15) [ClassicSimilarity], result of:
            0.046895333 = score(doc=15,freq=2.0), product of:
              0.12748 = queryWeight, product of:
                1.5582637 = boost
                4.1619086 = idf(docFreq=1880, maxDocs=44421)
                0.019656608 = queryNorm
              0.36786422 = fieldWeight in 15, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.1619086 = idf(docFreq=1880, maxDocs=44421)
                0.0625 = fieldNorm(doc=15)
          0.18049136 = weight(abstract_txt:counts in 15) [ClassicSimilarity], result of:
            0.18049136 = score(doc=15,freq=4.0), product of:
              0.21707985 = queryWeight, product of:
                1.6602904 = boost
                6.651612 = idf(docFreq=155, maxDocs=44421)
                0.019656608 = queryNorm
              0.8314515 = fieldWeight in 15, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.651612 = idf(docFreq=155, maxDocs=44421)
                0.0625 = fieldNorm(doc=15)
          0.112319134 = weight(abstract_txt:articles in 15) [ClassicSimilarity], result of:
            0.112319134 = score(doc=15,freq=5.0), product of:
              0.16814275 = queryWeight, product of:
                1.7896124 = boost
                4.7798095 = idf(docFreq=1013, maxDocs=44421)
                0.019656608 = queryNorm
              0.6679987 = fieldWeight in 15, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.7798095 = idf(docFreq=1013, maxDocs=44421)
                0.0625 = fieldNorm(doc=15)
          0.1284375 = weight(abstract_txt:normalized in 15) [ClassicSimilarity], result of:
            0.1284375 = score(doc=15,freq=1.0), product of:
              0.27466068 = queryWeight, product of:
                1.8675512 = boost
                7.48196 = idf(docFreq=67, maxDocs=44421)
                0.019656608 = queryNorm
              0.4676225 = fieldWeight in 15, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.48196 = idf(docFreq=67, maxDocs=44421)
                0.0625 = fieldNorm(doc=15)
          0.034197126 = weight(abstract_txt:research in 15) [ClassicSimilarity], result of:
            0.034197126 = score(doc=15,freq=2.0), product of:
              0.122451745 = queryWeight, product of:
                1.9716362 = boost
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.019656608 = queryNorm
              0.27927023 = fieldWeight in 15, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.0625 = fieldNorm(doc=15)
          0.07172355 = weight(abstract_txt:citation in 15) [ClassicSimilarity], result of:
            0.07172355 = score(doc=15,freq=1.0), product of:
              0.23466757 = queryWeight, product of:
                2.44127 = boost
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.019656608 = queryNorm
              0.30563894 = fieldWeight in 15, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.0625 = fieldNorm(doc=15)
          0.09294806 = weight(abstract_txt:citations in 15) [ClassicSimilarity], result of:
            0.09294806 = score(doc=15,freq=1.0), product of:
              0.27893656 = queryWeight, product of:
                2.661595 = boost
                5.331567 = idf(docFreq=583, maxDocs=44421)
                0.019656608 = queryNorm
              0.33322293 = fieldWeight in 15, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.331567 = idf(docFreq=583, maxDocs=44421)
                0.0625 = fieldNorm(doc=15)
          0.06932195 = weight(abstract_txt:field in 15) [ClassicSimilarity], result of:
            0.06932195 = score(doc=15,freq=1.0), product of:
              0.2471131 = queryWeight, product of:
                2.800865 = boost
                4.4884357 = idf(docFreq=1356, maxDocs=44421)
                0.019656608 = queryNorm
              0.28052723 = fieldWeight in 15, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.4884357 = idf(docFreq=1356, maxDocs=44421)
                0.0625 = fieldNorm(doc=15)
        0.44 = coord(11/25)
    
  3. Thelwall, M.; Kousha, K.; Abdoli, M.; Stuart, E.; Makita, M.; Wilson, P.; Levitt, J.: Why are coauthored academic articles more cited : higher quality or larger audience? (2023) 0.36
    0.35558286 = sum of:
      0.35558286 = product of:
        0.88895714 = sum of:
          0.03126175 = weight(abstract_txt:academic in 1997) [ClassicSimilarity], result of:
            0.03126175 = score(doc=1997,freq=1.0), product of:
              0.10707237 = queryWeight, product of:
                1.1660388 = boost
                4.6714945 = idf(docFreq=1129, maxDocs=44421)
                0.019656608 = queryNorm
              0.2919684 = fieldWeight in 1997, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6714945 = idf(docFreq=1129, maxDocs=44421)
                0.0625 = fieldNorm(doc=1997)
          0.05954323 = weight(abstract_txt:cited in 1997) [ClassicSimilarity], result of:
            0.05954323 = score(doc=1997,freq=1.0), product of:
              0.16452181 = queryWeight, product of:
                1.4453933 = boost
                5.790671 = idf(docFreq=368, maxDocs=44421)
                0.019656608 = queryNorm
              0.36191693 = fieldWeight in 1997, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.790671 = idf(docFreq=368, maxDocs=44421)
                0.0625 = fieldNorm(doc=1997)
          0.046895333 = weight(abstract_txt:first in 1997) [ClassicSimilarity], result of:
            0.046895333 = score(doc=1997,freq=2.0), product of:
              0.12748 = queryWeight, product of:
                1.5582637 = boost
                4.1619086 = idf(docFreq=1880, maxDocs=44421)
                0.019656608 = queryNorm
              0.36786422 = fieldWeight in 1997, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.1619086 = idf(docFreq=1880, maxDocs=44421)
                0.0625 = fieldNorm(doc=1997)
          0.09024568 = weight(abstract_txt:counts in 1997) [ClassicSimilarity], result of:
            0.09024568 = score(doc=1997,freq=1.0), product of:
              0.21707985 = queryWeight, product of:
                1.6602904 = boost
                6.651612 = idf(docFreq=155, maxDocs=44421)
                0.019656608 = queryNorm
              0.41572574 = fieldWeight in 1997, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.651612 = idf(docFreq=155, maxDocs=44421)
                0.0625 = fieldNorm(doc=1997)
          0.10046129 = weight(abstract_txt:articles in 1997) [ClassicSimilarity], result of:
            0.10046129 = score(doc=1997,freq=4.0), product of:
              0.16814275 = queryWeight, product of:
                1.7896124 = boost
                4.7798095 = idf(docFreq=1013, maxDocs=44421)
                0.019656608 = queryNorm
              0.5974762 = fieldWeight in 1997, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.7798095 = idf(docFreq=1013, maxDocs=44421)
                0.0625 = fieldNorm(doc=1997)
          0.02418102 = weight(abstract_txt:research in 1997) [ClassicSimilarity], result of:
            0.02418102 = score(doc=1997,freq=1.0), product of:
              0.122451745 = queryWeight, product of:
                1.9716362 = boost
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.019656608 = queryNorm
              0.19747387 = fieldWeight in 1997, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.0625 = fieldNorm(doc=1997)
          0.10143241 = weight(abstract_txt:citation in 1997) [ClassicSimilarity], result of:
            0.10143241 = score(doc=1997,freq=2.0), product of:
              0.23466757 = queryWeight, product of:
                2.44127 = boost
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.019656608 = queryNorm
              0.43223873 = fieldWeight in 1997, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.0625 = fieldNorm(doc=1997)
          0.07773165 = weight(abstract_txt:fields in 1997) [ClassicSimilarity], result of:
            0.07773165 = score(doc=1997,freq=1.0), product of:
              0.24759611 = queryWeight, product of:
                2.507617 = boost
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.019656608 = queryNorm
              0.31394535 = fieldWeight in 1997, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.0625 = fieldNorm(doc=1997)
          0.1314484 = weight(abstract_txt:citations in 1997) [ClassicSimilarity], result of:
            0.1314484 = score(doc=1997,freq=2.0), product of:
              0.27893656 = queryWeight, product of:
                2.661595 = boost
                5.331567 = idf(docFreq=583, maxDocs=44421)
                0.019656608 = queryNorm
              0.47124836 = fieldWeight in 1997, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.331567 = idf(docFreq=583, maxDocs=44421)
                0.0625 = fieldNorm(doc=1997)
          0.22575642 = weight(abstract_txt:quality in 1997) [ClassicSimilarity], result of:
            0.22575642 = score(doc=1997,freq=6.0), product of:
              0.31750602 = queryWeight, product of:
                3.4778504 = boost
                4.6444306 = idf(docFreq=1160, maxDocs=44421)
                0.019656608 = queryNorm
              0.71103036 = fieldWeight in 1997, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                4.6444306 = idf(docFreq=1160, maxDocs=44421)
                0.0625 = fieldNorm(doc=1997)
        0.4 = coord(10/25)
    
  4. Thelwall, M.; Kousha, K.; Abdoli, M.; Stuart, E.; Makita, M.; Wilson, P.; Levitt, J.: Which international co-authorships produce higher quality journal articles? (2024) 0.32
    0.32043952 = sum of:
      0.32043952 = product of:
        0.80109876 = sum of:
          0.078874074 = weight(abstract_txt:excellence in 2301) [ClassicSimilarity], result of:
            0.078874074 = score(doc=2301,freq=1.0), product of:
              0.15750031 = queryWeight, product of:
                8.0125885 = idf(docFreq=39, maxDocs=44421)
                0.019656608 = queryNorm
              0.5007868 = fieldWeight in 2301, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.0125885 = idf(docFreq=39, maxDocs=44421)
                0.0625 = fieldNorm(doc=2301)
          0.03126175 = weight(abstract_txt:academic in 2301) [ClassicSimilarity], result of:
            0.03126175 = score(doc=2301,freq=1.0), product of:
              0.10707237 = queryWeight, product of:
                1.1660388 = boost
                4.6714945 = idf(docFreq=1129, maxDocs=44421)
                0.019656608 = queryNorm
              0.2919684 = fieldWeight in 2301, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6714945 = idf(docFreq=1129, maxDocs=44421)
                0.0625 = fieldNorm(doc=2301)
          0.04045727 = weight(abstract_txt:even in 2301) [ClassicSimilarity], result of:
            0.04045727 = score(doc=2301,freq=1.0), product of:
              0.12715486 = queryWeight, product of:
                1.2706934 = boost
                5.0907717 = idf(docFreq=742, maxDocs=44421)
                0.019656608 = queryNorm
              0.31817323 = fieldWeight in 2301, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0907717 = idf(docFreq=742, maxDocs=44421)
                0.0625 = fieldNorm(doc=2301)
          0.05954323 = weight(abstract_txt:cited in 2301) [ClassicSimilarity], result of:
            0.05954323 = score(doc=2301,freq=1.0), product of:
              0.16452181 = queryWeight, product of:
                1.4453933 = boost
                5.790671 = idf(docFreq=368, maxDocs=44421)
                0.019656608 = queryNorm
              0.36191693 = fieldWeight in 2301, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.790671 = idf(docFreq=368, maxDocs=44421)
                0.0625 = fieldNorm(doc=2301)
          0.046895333 = weight(abstract_txt:first in 2301) [ClassicSimilarity], result of:
            0.046895333 = score(doc=2301,freq=2.0), product of:
              0.12748 = queryWeight, product of:
                1.5582637 = boost
                4.1619086 = idf(docFreq=1880, maxDocs=44421)
                0.019656608 = queryNorm
              0.36786422 = fieldWeight in 2301, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.1619086 = idf(docFreq=1880, maxDocs=44421)
                0.0625 = fieldNorm(doc=2301)
          0.10046129 = weight(abstract_txt:articles in 2301) [ClassicSimilarity], result of:
            0.10046129 = score(doc=2301,freq=4.0), product of:
              0.16814275 = queryWeight, product of:
                1.7896124 = boost
                4.7798095 = idf(docFreq=1013, maxDocs=44421)
                0.019656608 = queryNorm
              0.5974762 = fieldWeight in 2301, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.7798095 = idf(docFreq=1013, maxDocs=44421)
                0.0625 = fieldNorm(doc=2301)
          0.06839425 = weight(abstract_txt:research in 2301) [ClassicSimilarity], result of:
            0.06839425 = score(doc=2301,freq=8.0), product of:
              0.122451745 = queryWeight, product of:
                1.9716362 = boost
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.019656608 = queryNorm
              0.55854046 = fieldWeight in 2301, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.0625 = fieldNorm(doc=2301)
          0.07172355 = weight(abstract_txt:citation in 2301) [ClassicSimilarity], result of:
            0.07172355 = score(doc=2301,freq=1.0), product of:
              0.23466757 = queryWeight, product of:
                2.44127 = boost
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.019656608 = queryNorm
              0.30563894 = fieldWeight in 2301, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.0625 = fieldNorm(doc=2301)
          0.07773165 = weight(abstract_txt:fields in 2301) [ClassicSimilarity], result of:
            0.07773165 = score(doc=2301,freq=1.0), product of:
              0.24759611 = queryWeight, product of:
                2.507617 = boost
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.019656608 = queryNorm
              0.31394535 = fieldWeight in 2301, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.0625 = fieldNorm(doc=2301)
          0.22575642 = weight(abstract_txt:quality in 2301) [ClassicSimilarity], result of:
            0.22575642 = score(doc=2301,freq=6.0), product of:
              0.31750602 = queryWeight, product of:
                3.4778504 = boost
                4.6444306 = idf(docFreq=1160, maxDocs=44421)
                0.019656608 = queryNorm
              0.71103036 = fieldWeight in 2301, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                4.6444306 = idf(docFreq=1160, maxDocs=44421)
                0.0625 = fieldNorm(doc=2301)
        0.4 = coord(10/25)
    
  5. Waltman, L.; Schreiber, M.: On the calculation of percentile-based bibliometric indicators (2013) 0.29
    0.28662777 = sum of:
      0.28662777 = product of:
        1.0236706 = sum of:
          0.28779358 = weight(abstract_txt:percentile in 1616) [ClassicSimilarity], result of:
            0.28779358 = score(doc=1616,freq=5.0), product of:
              0.18812619 = queryWeight, product of:
                1.0929089 = boost
                8.757029 = idf(docFreq=18, maxDocs=44421)
                0.019656608 = queryNorm
              1.52979 = fieldWeight in 1616, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                8.757029 = idf(docFreq=18, maxDocs=44421)
                0.078125 = fieldNorm(doc=1616)
          0.105258554 = weight(abstract_txt:cited in 1616) [ClassicSimilarity], result of:
            0.105258554 = score(doc=1616,freq=2.0), product of:
              0.16452181 = queryWeight, product of:
                1.4453933 = boost
                5.790671 = idf(docFreq=368, maxDocs=44421)
                0.019656608 = queryNorm
              0.6397848 = fieldWeight in 1616, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.790671 = idf(docFreq=368, maxDocs=44421)
                0.078125 = fieldNorm(doc=1616)
          0.16793326 = weight(abstract_txt:indicators in 1616) [ClassicSimilarity], result of:
            0.16793326 = score(doc=1616,freq=4.0), product of:
              0.17829248 = queryWeight, product of:
                1.5046684 = boost
                6.0281444 = idf(docFreq=290, maxDocs=44421)
                0.019656608 = queryNorm
              0.9418976 = fieldWeight in 1616, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.0281444 = idf(docFreq=290, maxDocs=44421)
                0.078125 = fieldNorm(doc=1616)
          0.12679051 = weight(abstract_txt:citation in 1616) [ClassicSimilarity], result of:
            0.12679051 = score(doc=1616,freq=2.0), product of:
              0.23466757 = queryWeight, product of:
                2.44127 = boost
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.019656608 = queryNorm
              0.5402984 = fieldWeight in 1616, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.890223 = idf(docFreq=907, maxDocs=44421)
                0.078125 = fieldNorm(doc=1616)
          0.09716456 = weight(abstract_txt:fields in 1616) [ClassicSimilarity], result of:
            0.09716456 = score(doc=1616,freq=1.0), product of:
              0.24759611 = queryWeight, product of:
                2.507617 = boost
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.019656608 = queryNorm
              0.39243168 = fieldWeight in 1616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0231256 = idf(docFreq=794, maxDocs=44421)
                0.078125 = fieldNorm(doc=1616)
          0.11618507 = weight(abstract_txt:citations in 1616) [ClassicSimilarity], result of:
            0.11618507 = score(doc=1616,freq=1.0), product of:
              0.27893656 = queryWeight, product of:
                2.661595 = boost
                5.331567 = idf(docFreq=583, maxDocs=44421)
                0.019656608 = queryNorm
              0.41652864 = fieldWeight in 1616, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.331567 = idf(docFreq=583, maxDocs=44421)
                0.078125 = fieldNorm(doc=1616)
          0.122545056 = weight(abstract_txt:field in 1616) [ClassicSimilarity], result of:
            0.122545056 = score(doc=1616,freq=2.0), product of:
              0.2471131 = queryWeight, product of:
                2.800865 = boost
                4.4884357 = idf(docFreq=1356, maxDocs=44421)
                0.019656608 = queryNorm
              0.49590677 = fieldWeight in 1616, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.4884357 = idf(docFreq=1356, maxDocs=44421)
                0.078125 = fieldNorm(doc=1616)
        0.28 = coord(7/25)