Document (#40783)

Author

Teplitskiy, M.
Lu, G.
Duede, E.

Title

Amplifying the impact of open access : Wikipedia and the diffusion of science

Source

Journal of the Association for Information Science and Technology. 68(2017) no.9, S.2116-2127

Year

2017

Abstract

With the rise of Wikipedia as a first-stop source for scientific information, it is important to understand whether Wikipedia draws upon the research that scientists value most. Here we identify the 250 most heavily used journals in each of 26 research fields (4,721 journals, 19.4M articles) indexed by the Scopus database, and test whether topic, academic status, and accessibility make articles from these journals more or less likely to be referenced on Wikipedia. We find that a journal's academic status (impact factor) and accessibility (open access policy) both strongly increase the probability of it being referenced on Wikipedia. Controlling for field and impact factor, the odds that an open access journal is referenced on the English Wikipedia are 47% higher compared to paywall journals. These findings provide evidence is that a major consequence of open access policies is to significantly amplify the diffusion of science, through an intermediary like Wikipedia, to a broad audience.

Content

Vgl.: http://onlinelibrary.wiley.com/doi/10.1002/asi.23687/full. Der Beitrag ist frei verfügbar. Beitrag mit hohem AmScore in vielen Segmenten.

Theme

Informetrie
Informationsmittel
Internet

Object

Wikipedia

Similar documents (content)

1. Kousha, K.; Thelwall, M.: Are wikipedia citations important evidence of the impact of scholarly articles and books? (2017) 0.27

   0.2677399 = sum of:
     0.2677399 = product of:
       0.83668715 = sum of:
         0.05036026 = weight(abstract_txt:scopus in 4440) [ClassicSimilarity], result of:
           0.05036026 = score(doc=4440,freq=1.0), product of:
             0.11205786 = queryWeight, product of:
               1.0216793 = boost
               7.190608 = idf(docFreq=90, maxDocs=44421)
               0.01525324 = queryNorm
             0.449413 = fieldWeight in 4440, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.190608 = idf(docFreq=90, maxDocs=44421)
               0.0625 = fieldNorm(doc=4440)
         0.023473537 = weight(abstract_txt:most in 4440) [ClassicSimilarity], result of:
           0.023473537 = score(doc=4440,freq=2.0), product of:
             0.06736527 = queryWeight, product of:
               1.1202797 = boost
               3.94228 = idf(docFreq=2342, maxDocs=44421)
               0.01525324 = queryNorm
             0.3484516 = fieldWeight in 4440, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.94228 = idf(docFreq=2342, maxDocs=44421)
               0.0625 = fieldNorm(doc=4440)
         0.027617771 = weight(abstract_txt:academic in 4440) [ClassicSimilarity], result of:
           0.027617771 = score(doc=4440,freq=1.0), product of:
             0.09459164 = queryWeight, product of:
               1.3275008 = boost
               4.6714945 = idf(docFreq=1129, maxDocs=44421)
               0.01525324 = queryNorm
             0.2919684 = fieldWeight in 4440, 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=4440)
         0.0071665277 = weight(abstract_txt:that in 4440) [ClassicSimilarity], result of:
           0.0071665277 = score(doc=4440,freq=1.0), product of:
             0.048485238 = queryWeight, product of:
               1.3440895 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.01525324 = queryNorm
             0.14780845 = fieldWeight in 4440, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0625 = fieldNorm(doc=4440)
         0.05124051 = weight(abstract_txt:articles in 4440) [ClassicSimilarity], result of:
           0.05124051 = score(doc=4440,freq=3.0), product of:
             0.09902897 = queryWeight, product of:
               1.3582808 = boost
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.01525324 = queryNorm
             0.51742953 = fieldWeight in 4440, 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=4440)
         0.030790802 = weight(abstract_txt:whether in 4440) [ClassicSimilarity], result of:
           0.030790802 = score(doc=4440,freq=1.0), product of:
             0.101704694 = queryWeight, product of:
               1.3765086 = boost
               4.8439536 = idf(docFreq=950, maxDocs=44421)
               0.01525324 = queryNorm
             0.3027471 = fieldWeight in 4440, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8439536 = idf(docFreq=950, maxDocs=44421)
               0.0625 = fieldNorm(doc=4440)
         0.07772092 = weight(abstract_txt:impact in 4440) [ClassicSimilarity], result of:
           0.07772092 = score(doc=4440,freq=4.0), product of:
             0.1359657 = queryWeight, product of:
               1.9492555 = boost
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.01525324 = queryNorm
             0.5716215 = fieldWeight in 4440, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.0625 = fieldNorm(doc=4440)
         0.5683168 = weight(abstract_txt:wikipedia in 4440) [ClassicSimilarity], result of:
           0.5683168 = score(doc=4440,freq=6.0), product of:
             0.5935076 = queryWeight, product of:
               6.220934 = boost
               6.25473 = idf(docFreq=231, maxDocs=44421)
               0.01525324 = queryNorm
             0.9575561 = fieldWeight in 4440, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               6.25473 = idf(docFreq=231, maxDocs=44421)
               0.0625 = fieldNorm(doc=4440)
       0.32 = coord(8/25)
   

2. Nelson, G.M.; Eggett, D.L.: Citations, mandates, and money : author motivations to publish in chemistry hybrid open access journals (2017) 0.26

   0.26113424 = sum of:
     0.26113424 = product of:
       0.6528356 = sum of:
         0.020539343 = weight(abstract_txt:most in 4838) [ClassicSimilarity], result of:
           0.020539343 = score(doc=4838,freq=2.0), product of:
             0.06736527 = queryWeight, product of:
               1.1202797 = boost
               3.94228 = idf(docFreq=2342, maxDocs=44421)
               0.01525324 = queryNorm
             0.30489516 = fieldWeight in 4838, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.94228 = idf(docFreq=2342, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4838)
         0.02416555 = weight(abstract_txt:academic in 4838) [ClassicSimilarity], result of:
           0.02416555 = score(doc=4838,freq=1.0), product of:
             0.09459164 = queryWeight, product of:
               1.3275008 = boost
               4.6714945 = idf(docFreq=1129, maxDocs=44421)
               0.01525324 = queryNorm
             0.25547236 = fieldWeight in 4838, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.6714945 = idf(docFreq=1129, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4838)
         0.008868125 = weight(abstract_txt:that in 4838) [ClassicSimilarity], result of:
           0.008868125 = score(doc=4838,freq=2.0), product of:
             0.048485238 = queryWeight, product of:
               1.3440895 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.01525324 = queryNorm
             0.18290362 = fieldWeight in 4838, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4838)
         0.073215984 = weight(abstract_txt:articles in 4838) [ClassicSimilarity], result of:
           0.073215984 = score(doc=4838,freq=8.0), product of:
             0.09902897 = queryWeight, product of:
               1.3582808 = boost
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.01525324 = queryNorm
             0.73933905 = fieldWeight in 4838, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4838)
         0.026941953 = weight(abstract_txt:whether in 4838) [ClassicSimilarity], result of:
           0.026941953 = score(doc=4838,freq=1.0), product of:
             0.101704694 = queryWeight, product of:
               1.3765086 = boost
               4.8439536 = idf(docFreq=950, maxDocs=44421)
               0.01525324 = queryNorm
             0.26490372 = fieldWeight in 4838, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8439536 = idf(docFreq=950, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4838)
         0.046222266 = weight(abstract_txt:factor in 4838) [ClassicSimilarity], result of:
           0.046222266 = score(doc=4838,freq=1.0), product of:
             0.14575467 = queryWeight, product of:
               1.6478575 = boost
               5.7988343 = idf(docFreq=365, maxDocs=44421)
               0.01525324 = queryNorm
             0.31712374 = fieldWeight in 4838, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7988343 = idf(docFreq=365, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4838)
         0.0340029 = weight(abstract_txt:impact in 4838) [ClassicSimilarity], result of:
           0.0340029 = score(doc=4838,freq=1.0), product of:
             0.1359657 = queryWeight, product of:
               1.9492555 = boost
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.01525324 = queryNorm
             0.2500844 = fieldWeight in 4838, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4838)
         0.086335294 = weight(abstract_txt:access in 4838) [ClassicSimilarity], result of:
           0.086335294 = score(doc=4838,freq=14.0), product of:
             0.11556186 = queryWeight, product of:
               2.0750601 = boost
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.01525324 = queryNorm
             0.7470916 = fieldWeight in 4838, product of:
               3.7416575 = tf(freq=14.0), with freq of:
                 14.0 = termFreq=14.0
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4838)
         0.1759683 = weight(abstract_txt:open in 4838) [ClassicSimilarity], result of:
           0.1759683 = score(doc=4838,freq=11.0), product of:
             0.2013216 = queryWeight, product of:
               2.7388523 = boost
               4.8190303 = idf(docFreq=974, maxDocs=44421)
               0.01525324 = queryNorm
             0.8740657 = fieldWeight in 4838, product of:
               3.3166249 = tf(freq=11.0), with freq of:
                 11.0 = termFreq=11.0
               4.8190303 = idf(docFreq=974, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4838)
         0.15657589 = weight(abstract_txt:journals in 4838) [ClassicSimilarity], result of:
           0.15657589 = score(doc=4838,freq=6.0), product of:
             0.22794555 = queryWeight, product of:
               2.9143317 = boost
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.01525324 = queryNorm
             0.6869004 = fieldWeight in 4838, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4838)
       0.4 = coord(10/25)
   

3. Siler, K.; Larivière, V.: Varieties of diffusion in academic publishing : how status and legitimacy influence growth trajectories of new innovations (2024) 0.21

   0.21106906 = sum of:
     0.21106906 = product of:
       0.65959084 = sum of:
         0.027617771 = weight(abstract_txt:academic in 2208) [ClassicSimilarity], result of:
           0.027617771 = score(doc=2208,freq=1.0), product of:
             0.09459164 = queryWeight, product of:
               1.3275008 = boost
               4.6714945 = idf(docFreq=1129, maxDocs=44421)
               0.01525324 = queryNorm
             0.2919684 = fieldWeight in 2208, 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=2208)
         0.0071665277 = weight(abstract_txt:that in 2208) [ClassicSimilarity], result of:
           0.0071665277 = score(doc=2208,freq=1.0), product of:
             0.048485238 = queryWeight, product of:
               1.3440895 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.01525324 = queryNorm
             0.14780845 = fieldWeight in 2208, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0625 = fieldNorm(doc=2208)
         0.029583724 = weight(abstract_txt:articles in 2208) [ClassicSimilarity], result of:
           0.029583724 = score(doc=2208,freq=1.0), product of:
             0.09902897 = queryWeight, product of:
               1.3582808 = boost
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.01525324 = queryNorm
             0.2987381 = fieldWeight in 2208, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.0625 = fieldNorm(doc=2208)
         0.08211199 = weight(abstract_txt:status in 2208) [ClassicSimilarity], result of:
           0.08211199 = score(doc=2208,freq=2.0), product of:
             0.15523444 = queryWeight, product of:
               1.7006011 = boost
               5.98444 = idf(docFreq=303, maxDocs=44421)
               0.01525324 = queryNorm
             0.52895474 = fieldWeight in 2208, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.98444 = idf(docFreq=303, maxDocs=44421)
               0.0625 = fieldNorm(doc=2208)
         0.23282304 = weight(abstract_txt:diffusion in 2208) [ClassicSimilarity], result of:
           0.23282304 = score(doc=2208,freq=5.0), product of:
             0.22913301 = queryWeight, product of:
               2.0661044 = boost
               7.270651 = idf(docFreq=83, maxDocs=44421)
               0.01525324 = queryNorm
             1.0161043 = fieldWeight in 2208, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               7.270651 = idf(docFreq=83, maxDocs=44421)
               0.0625 = fieldNorm(doc=2208)
         0.026370373 = weight(abstract_txt:access in 2208) [ClassicSimilarity], result of:
           0.026370373 = score(doc=2208,freq=1.0), product of:
             0.11556186 = queryWeight, product of:
               2.0750601 = boost
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.01525324 = queryNorm
             0.2281927 = fieldWeight in 2208, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.0625 = fieldNorm(doc=2208)
         0.06063593 = weight(abstract_txt:open in 2208) [ClassicSimilarity], result of:
           0.06063593 = score(doc=2208,freq=1.0), product of:
             0.2013216 = queryWeight, product of:
               2.7388523 = boost
               4.8190303 = idf(docFreq=974, maxDocs=44421)
               0.01525324 = queryNorm
             0.3011894 = fieldWeight in 2208, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8190303 = idf(docFreq=974, maxDocs=44421)
               0.0625 = fieldNorm(doc=2208)
         0.19328146 = weight(abstract_txt:journals in 2208) [ClassicSimilarity], result of:
           0.19328146 = score(doc=2208,freq=7.0), product of:
             0.22794555 = queryWeight, product of:
               2.9143317 = boost
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.01525324 = queryNorm
             0.84792817 = fieldWeight in 2208, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.0625 = fieldNorm(doc=2208)
       0.32 = coord(8/25)
   

4. Mukherjee, B.: Do open-access journals in library and information science have any scholarly impact? : a bibliometric study of selected open-access journals using Google Scholar (2009) 0.19

   0.1886135 = sum of:
     0.1886135 = product of:
       0.5894172 = sum of:
         0.015466827 = weight(abstract_txt:science in 3745) [ClassicSimilarity], result of:
           0.015466827 = score(doc=3745,freq=1.0), product of:
             0.064267956 = queryWeight, product of:
               1.0942225 = boost
               3.850585 = idf(docFreq=2567, maxDocs=44421)
               0.01525324 = queryNorm
             0.24066156 = fieldWeight in 3745, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.850585 = idf(docFreq=2567, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
         0.010135001 = weight(abstract_txt:that in 3745) [ClassicSimilarity], result of:
           0.010135001 = score(doc=3745,freq=2.0), product of:
             0.048485238 = queryWeight, product of:
               1.3440895 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.01525324 = queryNorm
             0.20903271 = fieldWeight in 3745, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
         0.07827117 = weight(abstract_txt:articles in 3745) [ClassicSimilarity], result of:
           0.07827117 = score(doc=3745,freq=7.0), product of:
             0.09902897 = queryWeight, product of:
               1.3582808 = boost
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.01525324 = queryNorm
             0.7903867 = fieldWeight in 3745, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               4.7798095 = idf(docFreq=1013, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
         0.091496356 = weight(abstract_txt:factor in 3745) [ClassicSimilarity], result of:
           0.091496356 = score(doc=3745,freq=3.0), product of:
             0.14575467 = queryWeight, product of:
               1.6478575 = boost
               5.7988343 = idf(docFreq=365, maxDocs=44421)
               0.01525324 = queryNorm
             0.62774223 = fieldWeight in 3745, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.7988343 = idf(docFreq=365, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
         0.07772092 = weight(abstract_txt:impact in 3745) [ClassicSimilarity], result of:
           0.07772092 = score(doc=3745,freq=4.0), product of:
             0.1359657 = queryWeight, product of:
               1.9492555 = boost
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.01525324 = queryNorm
             0.5716215 = fieldWeight in 3745, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
         0.037293337 = weight(abstract_txt:access in 3745) [ClassicSimilarity], result of:
           0.037293337 = score(doc=3745,freq=2.0), product of:
             0.11556186 = queryWeight, product of:
               2.0750601 = boost
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.01525324 = queryNorm
             0.3227132 = fieldWeight in 3745, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
         0.08575215 = weight(abstract_txt:open in 3745) [ClassicSimilarity], result of:
           0.08575215 = score(doc=3745,freq=2.0), product of:
             0.2013216 = queryWeight, product of:
               2.7388523 = boost
               4.8190303 = idf(docFreq=974, maxDocs=44421)
               0.01525324 = queryNorm
             0.42594612 = fieldWeight in 3745, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.8190303 = idf(docFreq=974, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
         0.19328146 = weight(abstract_txt:journals in 3745) [ClassicSimilarity], result of:
           0.19328146 = score(doc=3745,freq=7.0), product of:
             0.22794555 = queryWeight, product of:
               2.9143317 = boost
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.01525324 = queryNorm
             0.84792817 = fieldWeight in 3745, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.0625 = fieldNorm(doc=3745)
       0.32 = coord(8/25)
   

5. Yan, E.; Li, K.: Which domains do open-access journals do best in? : a 5-year longitudinal study (2018) 0.18

   0.18386649 = sum of:
     0.18386649 = product of:
       0.65666604 = sum of:
         0.053669028 = weight(abstract_txt:controlling in 257) [ClassicSimilarity], result of:
           0.053669028 = score(doc=257,freq=1.0), product of:
             0.11691391 = queryWeight, product of:
               1.0435818 = boost
               7.344759 = idf(docFreq=77, maxDocs=44421)
               0.01525324 = queryNorm
             0.45904744 = fieldWeight in 257, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.344759 = idf(docFreq=77, maxDocs=44421)
               0.0625 = fieldNorm(doc=257)
         0.08044556 = weight(abstract_txt:journal's in 257) [ClassicSimilarity], result of:
           0.08044556 = score(doc=257,freq=1.0), product of:
             0.15312698 = queryWeight, product of:
               1.1943161 = boost
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.01525324 = queryNorm
             0.52535194 = fieldWeight in 257, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.0625 = fieldNorm(doc=257)
         0.014333055 = weight(abstract_txt:that in 257) [ClassicSimilarity], result of:
           0.014333055 = score(doc=257,freq=4.0), product of:
             0.048485238 = queryWeight, product of:
               1.3440895 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.01525324 = queryNorm
             0.2956169 = fieldWeight in 257, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0625 = fieldNorm(doc=257)
         0.08689463 = weight(abstract_txt:impact in 257) [ClassicSimilarity], result of:
           0.08689463 = score(doc=257,freq=5.0), product of:
             0.1359657 = queryWeight, product of:
               1.9492555 = boost
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.01525324 = queryNorm
             0.63909227 = fieldWeight in 257, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.572972 = idf(docFreq=1246, maxDocs=44421)
               0.0625 = fieldNorm(doc=257)
         0.07911112 = weight(abstract_txt:access in 257) [ClassicSimilarity], result of:
           0.07911112 = score(doc=257,freq=9.0), product of:
             0.11556186 = queryWeight, product of:
               2.0750601 = boost
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.01525324 = queryNorm
             0.6845781 = fieldWeight in 257, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.0625 = fieldNorm(doc=257)
         0.13558607 = weight(abstract_txt:open in 257) [ClassicSimilarity], result of:
           0.13558607 = score(doc=257,freq=5.0), product of:
             0.2013216 = queryWeight, product of:
               2.7388523 = boost
               4.8190303 = idf(docFreq=974, maxDocs=44421)
               0.01525324 = queryNorm
             0.67348 = fieldWeight in 257, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.8190303 = idf(docFreq=974, maxDocs=44421)
               0.0625 = fieldNorm(doc=257)
         0.20662656 = weight(abstract_txt:journals in 257) [ClassicSimilarity], result of:
           0.20662656 = score(doc=257,freq=8.0), product of:
             0.22794555 = queryWeight, product of:
               2.9143317 = boost
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.01525324 = queryNorm
             0.90647334 = fieldWeight in 257, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               5.1277876 = idf(docFreq=715, maxDocs=44421)
               0.0625 = fieldNorm(doc=257)
       0.28 = coord(7/25)