Document (#40057)

Editor
Wilson, P.
Author
Thelwall, M.
Title
Mendeley readership altmetrics for medical articles : an analysis of 45 fields
Source
Journal of the Association for Information Science and Technology. 67(2016) no.8, S.1962-1972
Year
2016
Abstract
Medical research is highly funded and often expensive and so is particularly important to evaluate effectively. Nevertheless, citation counts may accrue too slowly for use in some formal and informal evaluations. It is therefore important to investigate whether alternative metrics could be used as substitutes. This article assesses whether one such altmetric, Mendeley readership counts, correlates strongly with citation counts across all medical fields, whether the relationship is stronger if student readers are excluded, and whether they are distributed similarly to citation counts. Based on a sample of 332,975 articles from 2009 in 45 medical fields in Scopus, citation counts correlated strongly (about 0.7; 78% of articles had at least one reader) with Mendeley readership counts (from the new version 1 applications programming interface [API]) in almost all fields, with one minor exception, and the correlations tended to decrease slightly when student readers were excluded. Readership followed either a lognormal or a hooked power law distribution, whereas citations always followed a hooked power law, showing that the two may have underlying differences.
Content
Vgl.: http://onlinelibrary.wiley.com/doi/10.1002/asi.23501/abstract.
Theme
Informetrie
Field
Medizin
Object
Mendeley

Similar documents (author)

  1. Thelwall, M.; Thelwall, S.: ¬A thematic analysis of highly retweeted early COVID-19 tweets : consensus, information, dissent and lockdown life (2020) 4.91
    4.906364 = sum of:
      4.906364 = weight(author_txt:thelwall in 1180) [ClassicSimilarity], result of:
        4.906364 = fieldWeight in 1180, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.9386463 = idf(docFreq=113, maxDocs=43254)
          0.5 = fieldNorm(doc=1180)
    
  2. Thelwall, M.: Extracting macroscopic information from Web links (2001) 4.34
    4.3366537 = sum of:
      4.3366537 = weight(author_txt:thelwall in 1852) [ClassicSimilarity], result of:
        4.3366537 = fieldWeight in 1852, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          6.9386463 = idf(docFreq=113, maxDocs=43254)
          0.625 = fieldNorm(doc=1852)
    
  3. Thelwall, M.: Conceptualizing documentation on the Web : an evaluation of different heuristic-based models for counting links between university Web sites (2002) 4.34
    4.3366537 = sum of:
      4.3366537 = weight(author_txt:thelwall in 2979) [ClassicSimilarity], result of:
        4.3366537 = fieldWeight in 2979, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          6.9386463 = idf(docFreq=113, maxDocs=43254)
          0.625 = fieldNorm(doc=2979)
    
  4. Thelwall, M.: Text characteristics of English language university Web sites (2005) 4.34
    4.3366537 = sum of:
      4.3366537 = weight(author_txt:thelwall in 5464) [ClassicSimilarity], result of:
        4.3366537 = fieldWeight in 5464, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          6.9386463 = idf(docFreq=113, maxDocs=43254)
          0.625 = fieldNorm(doc=5464)
    
  5. Thelwall, M.: Bibliometrics to webometrics (2009) 4.34
    4.3366537 = sum of:
      4.3366537 = weight(author_txt:thelwall in 240) [ClassicSimilarity], result of:
        4.3366537 = fieldWeight in 240, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          6.9386463 = idf(docFreq=113, maxDocs=43254)
          0.625 = fieldNorm(doc=240)
    

Similar documents (content)

  1. Mohammadi, E.; Thelwall, M.; Kousha, K.: Can Mendeley bookmarks reflect readership? : a survey of user motivations (2016) 0.48
    0.48117357 = sum of:
      0.48117357 = product of:
        1.5036675 = sum of:
          0.07214881 = weight(abstract_txt:altmetrics in 4362) [ClassicSimilarity], result of:
            0.07214881 = score(doc=4362,freq=1.0), product of:
              0.13141151 = queryWeight, product of:
                1.1286709 = boost
                8.784473 = idf(docFreq=17, maxDocs=43254)
                0.013254102 = queryNorm
              0.5490296 = fieldWeight in 4362, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.784473 = idf(docFreq=17, maxDocs=43254)
                0.0625 = fieldNorm(doc=4362)
          0.06854948 = weight(abstract_txt:readers in 4362) [ClassicSimilarity], result of:
            0.06854948 = score(doc=4362,freq=2.0), product of:
              0.1270038 = queryWeight, product of:
                1.5691844 = boost
                6.1065006 = idf(docFreq=261, maxDocs=43254)
                0.013254102 = queryNorm
              0.5397435 = fieldWeight in 4362, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.1065006 = idf(docFreq=261, maxDocs=43254)
                0.0625 = fieldNorm(doc=4362)
          0.06142583 = weight(abstract_txt:articles in 4362) [ClassicSimilarity], result of:
            0.06142583 = score(doc=4362,freq=3.0), product of:
              0.11804511 = queryWeight, product of:
                1.8528286 = boost
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.013254102 = queryNorm
              0.520359 = fieldWeight in 4362, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.0625 = fieldNorm(doc=4362)
          0.04868226 = weight(abstract_txt:whether in 4362) [ClassicSimilarity], result of:
            0.04868226 = score(doc=4362,freq=1.0), product of:
              0.16047761 = queryWeight, product of:
                2.494525 = boost
                4.8537374 = idf(docFreq=916, maxDocs=43254)
                0.013254102 = queryNorm
              0.30335858 = fieldWeight in 4362, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.8537374 = idf(docFreq=916, maxDocs=43254)
                0.0625 = fieldNorm(doc=4362)
          0.050424445 = weight(abstract_txt:citation in 4362) [ClassicSimilarity], result of:
            0.050424445 = score(doc=4362,freq=1.0), product of:
              0.16428378 = queryWeight, product of:
                2.523934 = boost
                4.91096 = idf(docFreq=865, maxDocs=43254)
                0.013254102 = queryNorm
              0.306935 = fieldWeight in 4362, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.91096 = idf(docFreq=865, maxDocs=43254)
                0.0625 = fieldNorm(doc=4362)
          0.5635108 = weight(abstract_txt:mendeley in 4362) [ClassicSimilarity], result of:
            0.5635108 = score(doc=4362,freq=9.0), product of:
              0.358681 = queryWeight, product of:
                3.2297242 = boost
                8.379008 = idf(docFreq=26, maxDocs=43254)
                0.013254102 = queryNorm
              1.571064 = fieldWeight in 4362, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                8.379008 = idf(docFreq=26, maxDocs=43254)
                0.0625 = fieldNorm(doc=4362)
          0.30957302 = weight(abstract_txt:readership in 4362) [ClassicSimilarity], result of:
            0.30957302 = score(doc=4362,freq=2.0), product of:
              0.43718576 = queryWeight, product of:
                4.1173105 = boost
                8.011283 = idf(docFreq=38, maxDocs=43254)
                0.013254102 = queryNorm
              0.7081041 = fieldWeight in 4362, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.011283 = idf(docFreq=38, maxDocs=43254)
                0.0625 = fieldNorm(doc=4362)
          0.32935283 = weight(abstract_txt:counts in 4362) [ClassicSimilarity], result of:
            0.32935283 = score(doc=4362,freq=3.0), product of:
              0.45561522 = queryWeight, product of:
                5.147844 = boost
                6.677633 = idf(docFreq=147, maxDocs=43254)
                0.013254102 = queryNorm
              0.72287494 = fieldWeight in 4362, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.677633 = idf(docFreq=147, maxDocs=43254)
                0.0625 = fieldNorm(doc=4362)
        0.32 = coord(8/25)
    
  2. Thelwall, M.; Sud, P.: Mendeley readership counts : an investigation of temporal and disciplinary differences (2016) 0.47
    0.46897757 = sum of:
      0.46897757 = product of:
        1.465555 = sum of:
          0.122514606 = weight(abstract_txt:accrue in 4676) [ClassicSimilarity], result of:
            0.122514606 = score(doc=4676,freq=1.0), product of:
              0.16118793 = queryWeight, product of:
                1.2500198 = boost
                9.728935 = idf(docFreq=6, maxDocs=43254)
                0.013254102 = queryNorm
              0.76007307 = fieldWeight in 4676, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.728935 = idf(docFreq=6, maxDocs=43254)
                0.078125 = fieldNorm(doc=4676)
          0.10494452 = weight(abstract_txt:readers in 4676) [ClassicSimilarity], result of:
            0.10494452 = score(doc=4676,freq=3.0), product of:
              0.1270038 = queryWeight, product of:
                1.5691844 = boost
                6.1065006 = idf(docFreq=261, maxDocs=43254)
                0.013254102 = queryNorm
              0.82631004 = fieldWeight in 4676, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.1065006 = idf(docFreq=261, maxDocs=43254)
                0.078125 = fieldNorm(doc=4676)
          0.06269248 = weight(abstract_txt:articles in 4676) [ClassicSimilarity], result of:
            0.06269248 = score(doc=4676,freq=2.0), product of:
              0.11804511 = queryWeight, product of:
                1.8528286 = boost
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.013254102 = queryNorm
              0.5310892 = fieldWeight in 4676, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.078125 = fieldNorm(doc=4676)
          0.089138664 = weight(abstract_txt:citation in 4676) [ClassicSimilarity], result of:
            0.089138664 = score(doc=4676,freq=2.0), product of:
              0.16428378 = queryWeight, product of:
                2.523934 = boost
                4.91096 = idf(docFreq=865, maxDocs=43254)
                0.013254102 = queryNorm
              0.54258955 = fieldWeight in 4676, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.91096 = idf(docFreq=865, maxDocs=43254)
                0.078125 = fieldNorm(doc=4676)
          0.06889525 = weight(abstract_txt:fields in 4676) [ClassicSimilarity], result of:
            0.06889525 = score(doc=4676,freq=1.0), product of:
              0.1743225 = queryWeight, product of:
                2.5999043 = boost
                5.0587797 = idf(docFreq=746, maxDocs=43254)
                0.013254102 = queryNorm
              0.39521718 = fieldWeight in 4676, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0587797 = idf(docFreq=746, maxDocs=43254)
                0.078125 = fieldNorm(doc=4676)
          0.33205193 = weight(abstract_txt:mendeley in 4676) [ClassicSimilarity], result of:
            0.33205193 = score(doc=4676,freq=2.0), product of:
              0.358681 = queryWeight, product of:
                3.2297242 = boost
                8.379008 = idf(docFreq=26, maxDocs=43254)
                0.013254102 = queryNorm
              0.92575836 = fieldWeight in 4676, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.379008 = idf(docFreq=26, maxDocs=43254)
                0.078125 = fieldNorm(doc=4676)
          0.27362648 = weight(abstract_txt:readership in 4676) [ClassicSimilarity], result of:
            0.27362648 = score(doc=4676,freq=1.0), product of:
              0.43718576 = queryWeight, product of:
                4.1173105 = boost
                8.011283 = idf(docFreq=38, maxDocs=43254)
                0.013254102 = queryNorm
              0.6258815 = fieldWeight in 4676, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.011283 = idf(docFreq=38, maxDocs=43254)
                0.078125 = fieldNorm(doc=4676)
          0.41169104 = weight(abstract_txt:counts in 4676) [ClassicSimilarity], result of:
            0.41169104 = score(doc=4676,freq=3.0), product of:
              0.45561522 = queryWeight, product of:
                5.147844 = boost
                6.677633 = idf(docFreq=147, maxDocs=43254)
                0.013254102 = queryNorm
              0.90359366 = fieldWeight in 4676, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.677633 = idf(docFreq=147, maxDocs=43254)
                0.078125 = fieldNorm(doc=4676)
        0.32 = coord(8/25)
    
  3. Costas, R.; Perianes-Rodríguez, A.; Ruiz-Castillo, J.: On the quest for currencies of science : field "exchange rates" for citations and Mendeley readership (2017) 0.45
    0.45480892 = sum of:
      0.45480892 = product of:
        1.4212779 = sum of:
          0.014115139 = weight(abstract_txt:important in 52) [ClassicSimilarity], result of:
            0.014115139 = score(doc=52,freq=1.0), product of:
              0.06099235 = queryWeight, product of:
                1.087435 = boost
                4.2317667 = idf(docFreq=1707, maxDocs=43254)
                0.013254102 = queryNorm
              0.23142475 = fieldWeight in 52, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2317667 = idf(docFreq=1707, maxDocs=43254)
                0.0546875 = fieldNorm(doc=52)
          0.06313021 = weight(abstract_txt:altmetrics in 52) [ClassicSimilarity], result of:
            0.06313021 = score(doc=52,freq=1.0), product of:
              0.13141151 = queryWeight, product of:
                1.1286709 = boost
                8.784473 = idf(docFreq=17, maxDocs=43254)
                0.013254102 = queryNorm
              0.4804009 = fieldWeight in 52, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.784473 = idf(docFreq=17, maxDocs=43254)
                0.0546875 = fieldNorm(doc=52)
          0.07666955 = weight(abstract_txt:altmetric in 52) [ClassicSimilarity], result of:
            0.07666955 = score(doc=52,freq=1.0), product of:
              0.14958586 = queryWeight, product of:
                1.2041925 = boost
                9.37226 = idf(docFreq=9, maxDocs=43254)
                0.013254102 = queryNorm
              0.51254547 = fieldWeight in 52, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.37226 = idf(docFreq=9, maxDocs=43254)
                0.0546875 = fieldNorm(doc=52)
          0.06239707 = weight(abstract_txt:citation in 52) [ClassicSimilarity], result of:
            0.06239707 = score(doc=52,freq=2.0), product of:
              0.16428378 = queryWeight, product of:
                2.523934 = boost
                4.91096 = idf(docFreq=865, maxDocs=43254)
                0.013254102 = queryNorm
              0.37981272 = fieldWeight in 52, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.91096 = idf(docFreq=865, maxDocs=43254)
                0.0546875 = fieldNorm(doc=52)
          0.09645334 = weight(abstract_txt:fields in 52) [ClassicSimilarity], result of:
            0.09645334 = score(doc=52,freq=4.0), product of:
              0.1743225 = queryWeight, product of:
                2.5999043 = boost
                5.0587797 = idf(docFreq=746, maxDocs=43254)
                0.013254102 = queryNorm
              0.553304 = fieldWeight in 52, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.0587797 = idf(docFreq=746, maxDocs=43254)
                0.0546875 = fieldNorm(doc=52)
          0.36751413 = weight(abstract_txt:mendeley in 52) [ClassicSimilarity], result of:
            0.36751413 = score(doc=52,freq=5.0), product of:
              0.358681 = queryWeight, product of:
                3.2297242 = boost
                8.379008 = idf(docFreq=26, maxDocs=43254)
                0.013254102 = queryNorm
              1.0246267 = fieldWeight in 52, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                8.379008 = idf(docFreq=26, maxDocs=43254)
                0.0546875 = fieldNorm(doc=52)
          0.5746156 = weight(abstract_txt:readership in 52) [ClassicSimilarity], result of:
            0.5746156 = score(doc=52,freq=9.0), product of:
              0.43718576 = queryWeight, product of:
                4.1173105 = boost
                8.011283 = idf(docFreq=38, maxDocs=43254)
                0.013254102 = queryNorm
              1.3143511 = fieldWeight in 52, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                8.011283 = idf(docFreq=38, maxDocs=43254)
                0.0546875 = fieldNorm(doc=52)
          0.16638295 = weight(abstract_txt:counts in 52) [ClassicSimilarity], result of:
            0.16638295 = score(doc=52,freq=1.0), product of:
              0.45561522 = queryWeight, product of:
                5.147844 = boost
                6.677633 = idf(docFreq=147, maxDocs=43254)
                0.013254102 = queryNorm
              0.36518306 = fieldWeight in 52, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.677633 = idf(docFreq=147, maxDocs=43254)
                0.0546875 = fieldNorm(doc=52)
        0.32 = coord(8/25)
    
  4. Thelwall, M.; Maflahi, N.: Guideline references and academic citations as evidence of the clinical value of health research (2016) 0.45
    0.45065743 = sum of:
      0.45065743 = product of:
        1.2518262 = sum of:
          0.050179597 = weight(abstract_txt:stronger in 4321) [ClassicSimilarity], result of:
            0.050179597 = score(doc=4321,freq=1.0), product of:
              0.103157006 = queryWeight, product of:
                7.783025 = idf(docFreq=48, maxDocs=43254)
                0.013254102 = queryNorm
              0.48643905 = fieldWeight in 4321, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.783025 = idf(docFreq=48, maxDocs=43254)
                0.0625 = fieldNorm(doc=4321)
          0.07214881 = weight(abstract_txt:altmetrics in 4321) [ClassicSimilarity], result of:
            0.07214881 = score(doc=4321,freq=1.0), product of:
              0.13141151 = queryWeight, product of:
                1.1286709 = boost
                8.784473 = idf(docFreq=17, maxDocs=43254)
                0.013254102 = queryNorm
              0.5490296 = fieldWeight in 4321, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.784473 = idf(docFreq=17, maxDocs=43254)
                0.0625 = fieldNorm(doc=4321)
          0.06142583 = weight(abstract_txt:articles in 4321) [ClassicSimilarity], result of:
            0.06142583 = score(doc=4321,freq=3.0), product of:
              0.11804511 = queryWeight, product of:
                1.8528286 = boost
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.013254102 = queryNorm
              0.520359 = fieldWeight in 4321, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.0625 = fieldNorm(doc=4321)
          0.04868226 = weight(abstract_txt:whether in 4321) [ClassicSimilarity], result of:
            0.04868226 = score(doc=4321,freq=1.0), product of:
              0.16047761 = queryWeight, product of:
                2.494525 = boost
                4.8537374 = idf(docFreq=916, maxDocs=43254)
                0.013254102 = queryNorm
              0.30335858 = fieldWeight in 4321, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.8537374 = idf(docFreq=916, maxDocs=43254)
                0.0625 = fieldNorm(doc=4321)
          0.087337695 = weight(abstract_txt:citation in 4321) [ClassicSimilarity], result of:
            0.087337695 = score(doc=4321,freq=3.0), product of:
              0.16428378 = queryWeight, product of:
                2.523934 = boost
                4.91096 = idf(docFreq=865, maxDocs=43254)
                0.013254102 = queryNorm
              0.531627 = fieldWeight in 4321, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.91096 = idf(docFreq=865, maxDocs=43254)
                0.0625 = fieldNorm(doc=4321)
          0.11815647 = weight(abstract_txt:medical in 4321) [ClassicSimilarity], result of:
            0.11815647 = score(doc=4321,freq=2.0), product of:
              0.23003592 = queryWeight, product of:
                2.9866095 = boost
                5.811214 = idf(docFreq=351, maxDocs=43254)
                0.013254102 = queryNorm
              0.51364356 = fieldWeight in 4321, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.811214 = idf(docFreq=351, maxDocs=43254)
                0.0625 = fieldNorm(doc=4321)
          0.26564154 = weight(abstract_txt:mendeley in 4321) [ClassicSimilarity], result of:
            0.26564154 = score(doc=4321,freq=2.0), product of:
              0.358681 = queryWeight, product of:
                3.2297242 = boost
                8.379008 = idf(docFreq=26, maxDocs=43254)
                0.013254102 = queryNorm
              0.74060667 = fieldWeight in 4321, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.379008 = idf(docFreq=26, maxDocs=43254)
                0.0625 = fieldNorm(doc=4321)
          0.21890117 = weight(abstract_txt:readership in 4321) [ClassicSimilarity], result of:
            0.21890117 = score(doc=4321,freq=1.0), product of:
              0.43718576 = queryWeight, product of:
                4.1173105 = boost
                8.011283 = idf(docFreq=38, maxDocs=43254)
                0.013254102 = queryNorm
              0.5007052 = fieldWeight in 4321, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.011283 = idf(docFreq=38, maxDocs=43254)
                0.0625 = fieldNorm(doc=4321)
          0.32935283 = weight(abstract_txt:counts in 4321) [ClassicSimilarity], result of:
            0.32935283 = score(doc=4321,freq=3.0), product of:
              0.45561522 = queryWeight, product of:
                5.147844 = boost
                6.677633 = idf(docFreq=147, maxDocs=43254)
                0.013254102 = queryNorm
              0.72287494 = fieldWeight in 4321, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.677633 = idf(docFreq=147, maxDocs=43254)
                0.0625 = fieldNorm(doc=4321)
        0.36 = coord(9/25)
    
  5. Maflahi, N.; Thelwall, M.: How quickly do publications get read? : the evolution of mendeley reader counts for new articles (2018) 0.45
    0.44856194 = sum of:
      0.44856194 = product of:
        1.401756 = sum of:
          0.09801169 = weight(abstract_txt:accrue in 16) [ClassicSimilarity], result of:
            0.09801169 = score(doc=16,freq=1.0), product of:
              0.16118793 = queryWeight, product of:
                1.2500198 = boost
                9.728935 = idf(docFreq=6, maxDocs=43254)
                0.013254102 = queryNorm
              0.60805845 = fieldWeight in 16, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.728935 = idf(docFreq=6, maxDocs=43254)
                0.0625 = fieldNorm(doc=16)
          0.083955616 = weight(abstract_txt:readers in 16) [ClassicSimilarity], result of:
            0.083955616 = score(doc=16,freq=3.0), product of:
              0.1270038 = queryWeight, product of:
                1.5691844 = boost
                6.1065006 = idf(docFreq=261, maxDocs=43254)
                0.013254102 = queryNorm
              0.66104805 = fieldWeight in 16, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.1065006 = idf(docFreq=261, maxDocs=43254)
                0.0625 = fieldNorm(doc=16)
          0.07084273 = weight(abstract_txt:strongly in 16) [ClassicSimilarity], result of:
            0.07084273 = score(doc=16,freq=1.0), product of:
              0.1635639 = queryWeight, product of:
                1.7807763 = boost
                6.929913 = idf(docFreq=114, maxDocs=43254)
                0.013254102 = queryNorm
              0.43311957 = fieldWeight in 16, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.929913 = idf(docFreq=114, maxDocs=43254)
                0.0625 = fieldNorm(doc=16)
          0.07930041 = weight(abstract_txt:articles in 16) [ClassicSimilarity], result of:
            0.07930041 = score(doc=16,freq=5.0), product of:
              0.11804511 = queryWeight, product of:
                1.8528286 = boost
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.013254102 = queryNorm
              0.6717806 = fieldWeight in 16, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.0625 = fieldNorm(doc=16)
          0.050424445 = weight(abstract_txt:citation in 16) [ClassicSimilarity], result of:
            0.050424445 = score(doc=16,freq=1.0), product of:
              0.16428378 = queryWeight, product of:
                2.523934 = boost
                4.91096 = idf(docFreq=865, maxDocs=43254)
                0.013254102 = queryNorm
              0.306935 = fieldWeight in 16, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.91096 = idf(docFreq=865, maxDocs=43254)
                0.0625 = fieldNorm(doc=16)
          0.42001617 = weight(abstract_txt:mendeley in 16) [ClassicSimilarity], result of:
            0.42001617 = score(doc=16,freq=5.0), product of:
              0.358681 = queryWeight, product of:
                3.2297242 = boost
                8.379008 = idf(docFreq=26, maxDocs=43254)
                0.013254102 = queryNorm
              1.171002 = fieldWeight in 16, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                8.379008 = idf(docFreq=26, maxDocs=43254)
                0.0625 = fieldNorm(doc=16)
          0.21890117 = weight(abstract_txt:readership in 16) [ClassicSimilarity], result of:
            0.21890117 = score(doc=16,freq=1.0), product of:
              0.43718576 = queryWeight, product of:
                4.1173105 = boost
                8.011283 = idf(docFreq=38, maxDocs=43254)
                0.013254102 = queryNorm
              0.5007052 = fieldWeight in 16, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.011283 = idf(docFreq=38, maxDocs=43254)
                0.0625 = fieldNorm(doc=16)
          0.3803039 = weight(abstract_txt:counts in 16) [ClassicSimilarity], result of:
            0.3803039 = score(doc=16,freq=4.0), product of:
              0.45561522 = queryWeight, product of:
                5.147844 = boost
                6.677633 = idf(docFreq=147, maxDocs=43254)
                0.013254102 = queryNorm
              0.8347041 = fieldWeight in 16, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.677633 = idf(docFreq=147, maxDocs=43254)
                0.0625 = fieldNorm(doc=16)
        0.32 = coord(8/25)