Document (#40442)

Author
Kousha, K.
Thelwall, M.
Title
Are wikipedia citations important evidence of the impact of scholarly articles and books?
Source
Journal of the Association for Information Science and Technology. 68(2017) no.3, S.762-779
Year
2017
Abstract
Individual academics and research evaluators often need to assess the value of published research. Although citation counts are a recognized indicator of scholarly impact, alternative data is needed to provide evidence of other types of impact, including within education and wider society. Wikipedia is a logical choice for both of these because the role of a general encyclopaedia is to be an understandable repository of facts about a diverse array of topics and hence it may cite research to support its claims. To test whether Wikipedia could provide new evidence about the impact of scholarly research, this article counted citations to 302,328 articles and 18,735 monographs in English indexed by Scopus in the period 2005 to 2012. The results show that citations from Wikipedia to articles are too rare for most research evaluation purposes, with only 5% of articles being cited in all fields. In contrast, a third of monographs have at least one citation from Wikipedia, with the most in the arts and humanities. Hence, Wikipedia citations can provide extra impact evidence for academic monographs. Nevertheless, the results may be relatively easily manipulated and so Wikipedia is not recommended for evaluations affecting stakeholder interests.
Content
Vgl.: http://onlinelibrary.wiley.com/doi/10.1002/asi.23694/full.
Theme
Informetrie

Similar documents (author)

  1. Kousha, K.; Thelwall, M.: Google Scholar citations and Google Web/URL citations : a multi-discipline exploratory analysis (2007) 5.45
    5.448759 = sum of:
      5.448759 = sum of:
        1.9572463 = weight(author_txt:thelwall in 2338) [ClassicSimilarity], result of:
          1.9572463 = score(doc=2338,freq=1.0), product of:
            0.56223243 = queryWeight, product of:
              6.96241 = idf(docFreq=109, maxDocs=42740)
              0.08075256 = queryNorm
            3.481205 = fieldWeight in 2338, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.96241 = idf(docFreq=109, maxDocs=42740)
              0.5 = fieldNorm(doc=2338)
        3.4915125 = weight(author_txt:kousha in 2338) [ClassicSimilarity], result of:
          3.4915125 = score(doc=2338,freq=1.0), product of:
            0.8269793 = queryWeight, product of:
              1.2128005 = boost
              8.444015 = idf(docFreq=24, maxDocs=42740)
              0.08075256 = queryNorm
            4.2220073 = fieldWeight in 2338, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.444015 = idf(docFreq=24, maxDocs=42740)
              0.5 = fieldNorm(doc=2338)
    
  2. Kousha, K.; Thelwall, M.: How is science cited on the Web? : a classification of google unique Web citations (2007) 5.45
    5.448759 = sum of:
      5.448759 = sum of:
        1.9572463 = weight(author_txt:thelwall in 2587) [ClassicSimilarity], result of:
          1.9572463 = score(doc=2587,freq=1.0), product of:
            0.56223243 = queryWeight, product of:
              6.96241 = idf(docFreq=109, maxDocs=42740)
              0.08075256 = queryNorm
            3.481205 = fieldWeight in 2587, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.96241 = idf(docFreq=109, maxDocs=42740)
              0.5 = fieldNorm(doc=2587)
        3.4915125 = weight(author_txt:kousha in 2587) [ClassicSimilarity], result of:
          3.4915125 = score(doc=2587,freq=1.0), product of:
            0.8269793 = queryWeight, product of:
              1.2128005 = boost
              8.444015 = idf(docFreq=24, maxDocs=42740)
              0.08075256 = queryNorm
            4.2220073 = fieldWeight in 2587, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.444015 = idf(docFreq=24, maxDocs=42740)
              0.5 = fieldNorm(doc=2587)
    
  3. Thelwall, M.; Kousha, K.: Online presentations as a source of scientific impact? : an analysis of PowerPoint files citing academic journals (2008) 5.45
    5.448759 = sum of:
      5.448759 = sum of:
        1.9572463 = weight(author_txt:thelwall in 3615) [ClassicSimilarity], result of:
          1.9572463 = score(doc=3615,freq=1.0), product of:
            0.56223243 = queryWeight, product of:
              6.96241 = idf(docFreq=109, maxDocs=42740)
              0.08075256 = queryNorm
            3.481205 = fieldWeight in 3615, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.96241 = idf(docFreq=109, maxDocs=42740)
              0.5 = fieldNorm(doc=3615)
        3.4915125 = weight(author_txt:kousha in 3615) [ClassicSimilarity], result of:
          3.4915125 = score(doc=3615,freq=1.0), product of:
            0.8269793 = queryWeight, product of:
              1.2128005 = boost
              8.444015 = idf(docFreq=24, maxDocs=42740)
              0.08075256 = queryNorm
            4.2220073 = fieldWeight in 3615, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.444015 = idf(docFreq=24, maxDocs=42740)
              0.5 = fieldNorm(doc=3615)
    
  4. Kousha, K.; Thelwall, M.: Assessing the impact of disciplinary research on teaching : an automatic analysis of online syllabuses (2008) 5.45
    5.448759 = sum of:
      5.448759 = sum of:
        1.9572463 = weight(author_txt:thelwall in 4384) [ClassicSimilarity], result of:
          1.9572463 = score(doc=4384,freq=1.0), product of:
            0.56223243 = queryWeight, product of:
              6.96241 = idf(docFreq=109, maxDocs=42740)
              0.08075256 = queryNorm
            3.481205 = fieldWeight in 4384, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.96241 = idf(docFreq=109, maxDocs=42740)
              0.5 = fieldNorm(doc=4384)
        3.4915125 = weight(author_txt:kousha in 4384) [ClassicSimilarity], result of:
          3.4915125 = score(doc=4384,freq=1.0), product of:
            0.8269793 = queryWeight, product of:
              1.2128005 = boost
              8.444015 = idf(docFreq=24, maxDocs=42740)
              0.08075256 = queryNorm
            4.2220073 = fieldWeight in 4384, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.444015 = idf(docFreq=24, maxDocs=42740)
              0.5 = fieldNorm(doc=4384)
    
  5. Kousha, K.; Thelwall, M.: Google book search : citation analysis for social science and the humanities (2009) 5.45
    5.448759 = sum of:
      5.448759 = sum of:
        1.9572463 = weight(author_txt:thelwall in 4947) [ClassicSimilarity], result of:
          1.9572463 = score(doc=4947,freq=1.0), product of:
            0.56223243 = queryWeight, product of:
              6.96241 = idf(docFreq=109, maxDocs=42740)
              0.08075256 = queryNorm
            3.481205 = fieldWeight in 4947, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.96241 = idf(docFreq=109, maxDocs=42740)
              0.5 = fieldNorm(doc=4947)
        3.4915125 = weight(author_txt:kousha in 4947) [ClassicSimilarity], result of:
          3.4915125 = score(doc=4947,freq=1.0), product of:
            0.8269793 = queryWeight, product of:
              1.2128005 = boost
              8.444015 = idf(docFreq=24, maxDocs=42740)
              0.08075256 = queryNorm
            4.2220073 = fieldWeight in 4947, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.444015 = idf(docFreq=24, maxDocs=42740)
              0.5 = fieldNorm(doc=4947)
    

Similar documents (content)

  1. Teplitskiy, M.; Lu, G.; Duede, E.: Amplifying the impact of open access : Wikipedia and the diffusion of science (2017) 0.39
    0.38538402 = sum of:
      0.38538402 = product of:
        1.2043251 = sum of:
          0.06751419 = weight(abstract_txt:scopus in 5783) [ClassicSimilarity], result of:
            0.06751419 = score(doc=5783,freq=1.0), product of:
              0.11655457 = queryWeight, product of:
                1.0318475 = boost
                7.4143953 = idf(docFreq=69, maxDocs=42740)
                0.015234847 = queryNorm
              0.5792496 = fieldWeight in 5783, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.4143953 = idf(docFreq=69, maxDocs=42740)
                0.078125 = fieldNorm(doc=5783)
          0.029110998 = weight(abstract_txt:most in 5783) [ClassicSimilarity], result of:
            0.029110998 = score(doc=5783,freq=2.0), product of:
              0.06652282 = queryWeight, product of:
                1.1024303 = boost
                3.960786 = idf(docFreq=2212, maxDocs=42740)
                0.015234847 = queryNorm
              0.4376092 = fieldWeight in 5783, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.960786 = idf(docFreq=2212, maxDocs=42740)
                0.078125 = fieldNorm(doc=5783)
          0.033024203 = weight(abstract_txt:provide in 5783) [ClassicSimilarity], result of:
            0.033024203 = score(doc=5783,freq=1.0), product of:
              0.10435852 = queryWeight, product of:
                1.6911238 = boost
                4.050554 = idf(docFreq=2022, maxDocs=42740)
                0.015234847 = queryNorm
              0.31644952 = fieldWeight in 5783, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.050554 = idf(docFreq=2022, maxDocs=42740)
                0.078125 = fieldNorm(doc=5783)
          0.038884886 = weight(abstract_txt:research in 5783) [ClassicSimilarity], result of:
            0.038884886 = score(doc=5783,freq=2.0), product of:
              0.109504804 = queryWeight, product of:
                2.2364151 = boost
                3.2139761 = idf(docFreq=4669, maxDocs=42740)
                0.015234847 = queryNorm
              0.35509753 = fieldWeight in 5783, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.2139761 = idf(docFreq=4669, maxDocs=42740)
                0.078125 = fieldNorm(doc=5783)
          0.10500952 = weight(abstract_txt:articles in 5783) [ClassicSimilarity], result of:
            0.10500952 = score(doc=5783,freq=2.0), product of:
              0.19713408 = queryWeight, product of:
                2.6838713 = boost
                4.821275 = idf(docFreq=935, maxDocs=42740)
                0.015234847 = queryNorm
              0.5326807 = fieldWeight in 5783, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.821275 = idf(docFreq=935, maxDocs=42740)
                0.078125 = fieldNorm(doc=5783)
          0.10774765 = weight(abstract_txt:evidence in 5783) [ClassicSimilarity], result of:
            0.10774765 = score(doc=5783,freq=1.0), product of:
              0.2526724 = queryWeight, product of:
                3.0385036 = boost
                5.4583325 = idf(docFreq=494, maxDocs=42740)
                0.015234847 = queryNorm
              0.42643222 = fieldWeight in 5783, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4583325 = idf(docFreq=494, maxDocs=42740)
                0.078125 = fieldNorm(doc=5783)
          0.11547894 = weight(abstract_txt:impact in 5783) [ClassicSimilarity], result of:
            0.11547894 = score(doc=5783,freq=2.0), product of:
              0.2262461 = queryWeight, product of:
                3.214596 = boost
                4.6197305 = idf(docFreq=1144, maxDocs=42740)
                0.015234847 = queryNorm
              0.51041293 = fieldWeight in 5783, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.6197305 = idf(docFreq=1144, maxDocs=42740)
                0.078125 = fieldNorm(doc=5783)
          0.7075547 = weight(abstract_txt:wikipedia in 5783) [ClassicSimilarity], result of:
            0.7075547 = score(doc=5783,freq=6.0), product of:
              0.5876087 = queryWeight, product of:
                6.129767 = boost
                6.2922525 = idf(docFreq=214, maxDocs=42740)
                0.015234847 = queryNorm
              1.2041256 = fieldWeight in 5783, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                6.2922525 = idf(docFreq=214, maxDocs=42740)
                0.078125 = fieldNorm(doc=5783)
        0.32 = coord(8/25)
    
  2. Kousha, K.; Thelwall, M.: Patent citation analysis with Google (2017) 0.25
    0.25248677 = sum of:
      0.25248677 = product of:
        0.7013521 = sum of:
          0.09355041 = weight(abstract_txt:scopus in 5318) [ClassicSimilarity], result of:
            0.09355041 = score(doc=5318,freq=3.0), product of:
              0.11655457 = queryWeight, product of:
                1.0318475 = boost
                7.4143953 = idf(docFreq=69, maxDocs=42740)
                0.015234847 = queryNorm
              0.8026318 = fieldWeight in 5318, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.4143953 = idf(docFreq=69, maxDocs=42740)
                0.0625 = fieldNorm(doc=5318)
          0.01630581 = weight(abstract_txt:about in 5318) [ClassicSimilarity], result of:
            0.01630581 = score(doc=5318,freq=1.0), product of:
              0.06608621 = queryWeight, product of:
                1.0988066 = boost
                3.947767 = idf(docFreq=2241, maxDocs=42740)
                0.015234847 = queryNorm
              0.24673544 = fieldWeight in 5318, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.947767 = idf(docFreq=2241, maxDocs=42740)
                0.0625 = fieldNorm(doc=5318)
          0.0631271 = weight(abstract_txt:citation in 5318) [ClassicSimilarity], result of:
            0.0631271 = score(doc=5318,freq=4.0), product of:
              0.10264549 = queryWeight, product of:
                1.3694172 = boost
                4.92001 = idf(docFreq=847, maxDocs=42740)
                0.015234847 = queryNorm
              0.61500126 = fieldWeight in 5318, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.92001 = idf(docFreq=847, maxDocs=42740)
                0.0625 = fieldNorm(doc=5318)
          0.026419362 = weight(abstract_txt:provide in 5318) [ClassicSimilarity], result of:
            0.026419362 = score(doc=5318,freq=1.0), product of:
              0.10435852 = queryWeight, product of:
                1.6911238 = boost
                4.050554 = idf(docFreq=2022, maxDocs=42740)
                0.015234847 = queryNorm
              0.2531596 = fieldWeight in 5318, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.050554 = idf(docFreq=2022, maxDocs=42740)
                0.0625 = fieldNorm(doc=5318)
          0.03110791 = weight(abstract_txt:research in 5318) [ClassicSimilarity], result of:
            0.03110791 = score(doc=5318,freq=2.0), product of:
              0.109504804 = queryWeight, product of:
                2.2364151 = boost
                3.2139761 = idf(docFreq=4669, maxDocs=42740)
                0.015234847 = queryNorm
              0.28407803 = fieldWeight in 5318, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.2139761 = idf(docFreq=4669, maxDocs=42740)
                0.0625 = fieldNorm(doc=5318)
          0.10288789 = weight(abstract_txt:articles in 5318) [ClassicSimilarity], result of:
            0.10288789 = score(doc=5318,freq=3.0), product of:
              0.19713408 = queryWeight, product of:
                2.6838713 = boost
                4.821275 = idf(docFreq=935, maxDocs=42740)
                0.015234847 = queryNorm
              0.52191836 = fieldWeight in 5318, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.821275 = idf(docFreq=935, maxDocs=42740)
                0.0625 = fieldNorm(doc=5318)
          0.21643072 = weight(abstract_txt:citations in 5318) [ClassicSimilarity], result of:
            0.21643072 = score(doc=5318,freq=7.0), product of:
              0.24400902 = queryWeight, product of:
                2.9859586 = boost
                5.363941 = idf(docFreq=543, maxDocs=42740)
                0.015234847 = queryNorm
              0.8869784 = fieldWeight in 5318, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                5.363941 = idf(docFreq=543, maxDocs=42740)
                0.0625 = fieldNorm(doc=5318)
          0.08619813 = weight(abstract_txt:evidence in 5318) [ClassicSimilarity], result of:
            0.08619813 = score(doc=5318,freq=1.0), product of:
              0.2526724 = queryWeight, product of:
                3.0385036 = boost
                5.4583325 = idf(docFreq=494, maxDocs=42740)
                0.015234847 = queryNorm
              0.34114578 = fieldWeight in 5318, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4583325 = idf(docFreq=494, maxDocs=42740)
                0.0625 = fieldNorm(doc=5318)
          0.06532475 = weight(abstract_txt:impact in 5318) [ClassicSimilarity], result of:
            0.06532475 = score(doc=5318,freq=1.0), product of:
              0.2262461 = queryWeight, product of:
                3.214596 = boost
                4.6197305 = idf(docFreq=1144, maxDocs=42740)
                0.015234847 = queryNorm
              0.28873315 = fieldWeight in 5318, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6197305 = idf(docFreq=1144, maxDocs=42740)
                0.0625 = fieldNorm(doc=5318)
        0.36 = coord(9/25)
    
  3. Haustein, S.; Peters, I.; Sugimoto, C.R.; Thelwall, M.; Larivière, V.: Tweeting biomedicine : an analysis of tweets and citations in the biomedical literature (2014) 0.24
    0.23994279 = sum of:
      0.23994279 = product of:
        0.6665077 = sum of:
          0.023059897 = weight(abstract_txt:about in 3230) [ClassicSimilarity], result of:
            0.023059897 = score(doc=3230,freq=2.0), product of:
              0.06608621 = queryWeight, product of:
                1.0988066 = boost
                3.947767 = idf(docFreq=2241, maxDocs=42740)
                0.015234847 = queryNorm
              0.3489366 = fieldWeight in 3230, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.947767 = idf(docFreq=2241, maxDocs=42740)
                0.0625 = fieldNorm(doc=3230)
          0.0446376 = weight(abstract_txt:citation in 3230) [ClassicSimilarity], result of:
            0.0446376 = score(doc=3230,freq=2.0), product of:
              0.10264549 = queryWeight, product of:
                1.3694172 = boost
                4.92001 = idf(docFreq=847, maxDocs=42740)
                0.015234847 = queryNorm
              0.43487155 = fieldWeight in 3230, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.92001 = idf(docFreq=847, maxDocs=42740)
                0.0625 = fieldNorm(doc=3230)
          0.026419362 = weight(abstract_txt:provide in 3230) [ClassicSimilarity], result of:
            0.026419362 = score(doc=3230,freq=1.0), product of:
              0.10435852 = queryWeight, product of:
                1.6911238 = boost
                4.050554 = idf(docFreq=2022, maxDocs=42740)
                0.015234847 = queryNorm
              0.2531596 = fieldWeight in 3230, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.050554 = idf(docFreq=2022, maxDocs=42740)
                0.0625 = fieldNorm(doc=3230)
          0.021996614 = weight(abstract_txt:research in 3230) [ClassicSimilarity], result of:
            0.021996614 = score(doc=3230,freq=1.0), product of:
              0.109504804 = queryWeight, product of:
                2.2364151 = boost
                3.2139761 = idf(docFreq=4669, maxDocs=42740)
                0.015234847 = queryNorm
              0.20087351 = fieldWeight in 3230, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.2139761 = idf(docFreq=4669, maxDocs=42740)
                0.0625 = fieldNorm(doc=3230)
          0.06705244 = weight(abstract_txt:scholarly in 3230) [ClassicSimilarity], result of:
            0.06705244 = score(doc=3230,freq=1.0), product of:
              0.19417325 = queryWeight, product of:
                2.3067799 = boost
                5.5251637 = idf(docFreq=462, maxDocs=42740)
                0.015234847 = queryNorm
              0.34532273 = fieldWeight in 3230, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5251637 = idf(docFreq=462, maxDocs=42740)
                0.0625 = fieldNorm(doc=3230)
          0.10288789 = weight(abstract_txt:articles in 3230) [ClassicSimilarity], result of:
            0.10288789 = score(doc=3230,freq=3.0), product of:
              0.19713408 = queryWeight, product of:
                2.6838713 = boost
                4.821275 = idf(docFreq=935, maxDocs=42740)
                0.015234847 = queryNorm
              0.52191836 = fieldWeight in 3230, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.821275 = idf(docFreq=935, maxDocs=42740)
                0.0625 = fieldNorm(doc=3230)
          0.16360626 = weight(abstract_txt:citations in 3230) [ClassicSimilarity], result of:
            0.16360626 = score(doc=3230,freq=4.0), product of:
              0.24400902 = queryWeight, product of:
                2.9859586 = boost
                5.363941 = idf(docFreq=543, maxDocs=42740)
                0.015234847 = queryNorm
              0.67049265 = fieldWeight in 3230, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.363941 = idf(docFreq=543, maxDocs=42740)
                0.0625 = fieldNorm(doc=3230)
          0.08619813 = weight(abstract_txt:evidence in 3230) [ClassicSimilarity], result of:
            0.08619813 = score(doc=3230,freq=1.0), product of:
              0.2526724 = queryWeight, product of:
                3.0385036 = boost
                5.4583325 = idf(docFreq=494, maxDocs=42740)
                0.015234847 = queryNorm
              0.34114578 = fieldWeight in 3230, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4583325 = idf(docFreq=494, maxDocs=42740)
                0.0625 = fieldNorm(doc=3230)
          0.1306495 = weight(abstract_txt:impact in 3230) [ClassicSimilarity], result of:
            0.1306495 = score(doc=3230,freq=4.0), product of:
              0.2262461 = queryWeight, product of:
                3.214596 = boost
                4.6197305 = idf(docFreq=1144, maxDocs=42740)
                0.015234847 = queryNorm
              0.5774663 = fieldWeight in 3230, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.6197305 = idf(docFreq=1144, maxDocs=42740)
                0.0625 = fieldNorm(doc=3230)
        0.36 = coord(9/25)
    
  4. Kousha, K.; Thelwall, M.: Assessing the impact of disciplinary research on teaching : an automatic analysis of online syllabuses (2008) 0.24
    0.23883814 = sum of:
      0.23883814 = product of:
        0.7463692 = sum of:
          0.023059897 = weight(abstract_txt:about in 4384) [ClassicSimilarity], result of:
            0.023059897 = score(doc=4384,freq=2.0), product of:
              0.06608621 = queryWeight, product of:
                1.0988066 = boost
                3.947767 = idf(docFreq=2241, maxDocs=42740)
                0.015234847 = queryNorm
              0.3489366 = fieldWeight in 4384, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.947767 = idf(docFreq=2241, maxDocs=42740)
                0.0625 = fieldNorm(doc=4384)
          0.026419362 = weight(abstract_txt:provide in 4384) [ClassicSimilarity], result of:
            0.026419362 = score(doc=4384,freq=1.0), product of:
              0.10435852 = queryWeight, product of:
                1.6911238 = boost
                4.050554 = idf(docFreq=2022, maxDocs=42740)
                0.015234847 = queryNorm
              0.2531596 = fieldWeight in 4384, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.050554 = idf(docFreq=2022, maxDocs=42740)
                0.0625 = fieldNorm(doc=4384)
          0.07471236 = weight(abstract_txt:hence in 4384) [ClassicSimilarity], result of:
            0.07471236 = score(doc=4384,freq=1.0), product of:
              0.18231018 = queryWeight, product of:
                1.8250355 = boost
                6.556945 = idf(docFreq=164, maxDocs=42740)
                0.015234847 = queryNorm
              0.40980905 = fieldWeight in 4384, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.556945 = idf(docFreq=164, maxDocs=42740)
                0.0625 = fieldNorm(doc=4384)
          0.053880483 = weight(abstract_txt:research in 4384) [ClassicSimilarity], result of:
            0.053880483 = score(doc=4384,freq=6.0), product of:
              0.109504804 = queryWeight, product of:
                2.2364151 = boost
                3.2139761 = idf(docFreq=4669, maxDocs=42740)
                0.015234847 = queryNorm
              0.49203762 = fieldWeight in 4384, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.2139761 = idf(docFreq=4669, maxDocs=42740)
                0.0625 = fieldNorm(doc=4384)
          0.1328277 = weight(abstract_txt:articles in 4384) [ClassicSimilarity], result of:
            0.1328277 = score(doc=4384,freq=5.0), product of:
              0.19713408 = queryWeight, product of:
                2.6838713 = boost
                4.821275 = idf(docFreq=935, maxDocs=42740)
                0.015234847 = queryNorm
              0.67379373 = fieldWeight in 4384, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.821275 = idf(docFreq=935, maxDocs=42740)
                0.0625 = fieldNorm(doc=4384)
          0.18291736 = weight(abstract_txt:citations in 4384) [ClassicSimilarity], result of:
            0.18291736 = score(doc=4384,freq=5.0), product of:
              0.24400902 = queryWeight, product of:
                2.9859586 = boost
                5.363941 = idf(docFreq=543, maxDocs=42740)
                0.015234847 = queryNorm
              0.7496336 = fieldWeight in 4384, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.363941 = idf(docFreq=543, maxDocs=42740)
                0.0625 = fieldNorm(doc=4384)
          0.121902555 = weight(abstract_txt:evidence in 4384) [ClassicSimilarity], result of:
            0.121902555 = score(doc=4384,freq=2.0), product of:
              0.2526724 = queryWeight, product of:
                3.0385036 = boost
                5.4583325 = idf(docFreq=494, maxDocs=42740)
                0.015234847 = queryNorm
              0.482453 = fieldWeight in 4384, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.4583325 = idf(docFreq=494, maxDocs=42740)
                0.0625 = fieldNorm(doc=4384)
          0.1306495 = weight(abstract_txt:impact in 4384) [ClassicSimilarity], result of:
            0.1306495 = score(doc=4384,freq=4.0), product of:
              0.2262461 = queryWeight, product of:
                3.214596 = boost
                4.6197305 = idf(docFreq=1144, maxDocs=42740)
                0.015234847 = queryNorm
              0.5774663 = fieldWeight in 4384, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.6197305 = idf(docFreq=1144, maxDocs=42740)
                0.0625 = fieldNorm(doc=4384)
        0.32 = coord(8/25)
    
  5. Kousha, K.; Thelwall, M.: ¬An automatic method for extracting citations from Google Books (2015) 0.22
    0.22422451 = sum of:
      0.22422451 = product of:
        0.7007016 = sum of:
          0.01630581 = weight(abstract_txt:about in 3659) [ClassicSimilarity], result of:
            0.01630581 = score(doc=3659,freq=1.0), product of:
              0.06608621 = queryWeight, product of:
                1.0988066 = boost
                3.947767 = idf(docFreq=2241, maxDocs=42740)
                0.015234847 = queryNorm
              0.24673544 = fieldWeight in 3659, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.947767 = idf(docFreq=2241, maxDocs=42740)
                0.0625 = fieldNorm(doc=3659)
          0.016467666 = weight(abstract_txt:most in 3659) [ClassicSimilarity], result of:
            0.016467666 = score(doc=3659,freq=1.0), product of:
              0.06652282 = queryWeight, product of:
                1.1024303 = boost
                3.960786 = idf(docFreq=2212, maxDocs=42740)
                0.015234847 = queryNorm
              0.24754913 = fieldWeight in 3659, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.960786 = idf(docFreq=2212, maxDocs=42740)
                0.0625 = fieldNorm(doc=3659)
          0.0773146 = weight(abstract_txt:citation in 3659) [ClassicSimilarity], result of:
            0.0773146 = score(doc=3659,freq=6.0), product of:
              0.10264549 = queryWeight, product of:
                1.3694172 = boost
                4.92001 = idf(docFreq=847, maxDocs=42740)
                0.015234847 = queryNorm
              0.75321966 = fieldWeight in 3659, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                4.92001 = idf(docFreq=847, maxDocs=42740)
                0.0625 = fieldNorm(doc=3659)
          0.06705244 = weight(abstract_txt:scholarly in 3659) [ClassicSimilarity], result of:
            0.06705244 = score(doc=3659,freq=1.0), product of:
              0.19417325 = queryWeight, product of:
                2.3067799 = boost
                5.5251637 = idf(docFreq=462, maxDocs=42740)
                0.015234847 = queryNorm
              0.34532273 = fieldWeight in 3659, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5251637 = idf(docFreq=462, maxDocs=42740)
                0.0625 = fieldNorm(doc=3659)
          0.08400761 = weight(abstract_txt:articles in 3659) [ClassicSimilarity], result of:
            0.08400761 = score(doc=3659,freq=2.0), product of:
              0.19713408 = queryWeight, product of:
                2.6838713 = boost
                4.821275 = idf(docFreq=935, maxDocs=42740)
                0.015234847 = queryNorm
              0.42614454 = fieldWeight in 3659, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.821275 = idf(docFreq=935, maxDocs=42740)
                0.0625 = fieldNorm(doc=3659)
          0.20037593 = weight(abstract_txt:citations in 3659) [ClassicSimilarity], result of:
            0.20037593 = score(doc=3659,freq=6.0), product of:
              0.24400902 = queryWeight, product of:
                2.9859586 = boost
                5.363941 = idf(docFreq=543, maxDocs=42740)
                0.015234847 = queryNorm
              0.8211825 = fieldWeight in 3659, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                5.363941 = idf(docFreq=543, maxDocs=42740)
                0.0625 = fieldNorm(doc=3659)
          0.14679436 = weight(abstract_txt:monographs in 3659) [ClassicSimilarity], result of:
            0.14679436 = score(doc=3659,freq=1.0), product of:
              0.32738036 = queryWeight, product of:
                2.9952824 = boost
                7.174254 = idf(docFreq=88, maxDocs=42740)
                0.015234847 = queryNorm
              0.44839087 = fieldWeight in 3659, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.174254 = idf(docFreq=88, maxDocs=42740)
                0.0625 = fieldNorm(doc=3659)
          0.09238315 = weight(abstract_txt:impact in 3659) [ClassicSimilarity], result of:
            0.09238315 = score(doc=3659,freq=2.0), product of:
              0.2262461 = queryWeight, product of:
                3.214596 = boost
                4.6197305 = idf(docFreq=1144, maxDocs=42740)
                0.015234847 = queryNorm
              0.40833032 = fieldWeight in 3659, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.6197305 = idf(docFreq=1144, maxDocs=42740)
                0.0625 = fieldNorm(doc=3659)
        0.32 = coord(8/25)