Document (#36637)

Author
Walters, W.H.
Linvill, A.C.
Title
Bibliographic index coverage of open-access journals in six subject areas
Source
Journal of the American Society for Information Science and Technology. 62(2011) no.8, S.1614-1628
Year
2011
Abstract
We investigate the extent to which open-access (OA) journals and articles in biology, computer science, economics, history, medicine, and psychology are indexed in each of 11 bibliographic databases. We also look for variations in index coverage by journal subject, journal size, publisher type, publisher size, date of first OA issue, region of publication, language of publication, publication fee, and citation impact factor. Two databases, Biological Abstracts and PubMed, provide very good coverage of the OA journal literature, indexing 60 to 63% of all OA articles in their disciplines. Five databases provide moderately good coverage (22-41%), and four provide relatively poor coverage (0-12%). OA articles in biology journals, English-only journals, high-impact journals, and journals that charge publication fees of $1,000 or more are especially likely to be indexed. Conversely, articles from OA publishers in Africa, Asia, or Central/South America are especially unlikely to be indexed. Four of the 11 databases index commercially published articles at a substantially higher rate than articles published by universities, scholarly societies, nonprofit publishers, or governments. Finally, three databases-EBSCO Academic Search Complete, ProQuest Research Library, and Wilson OmniFile-provide less comprehensive coverage of OA articles than of articles in comparable subscription journals.
Theme
Elektronisches Publizieren
Informetrie

Similar documents (author)

  1. Walters, T.O.: Rediscovering the theoretical base of records management and its implications for graduate education (1995) 5.86
    5.8576627 = sum of:
      5.8576627 = weight(author_txt:walters in 4132) [ClassicSimilarity], result of:
        5.8576627 = fieldWeight in 4132, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.37226 = idf(docFreq=9, maxDocs=43254)
          0.625 = fieldNorm(doc=4132)
    
  2. Walters, G.D.: Measuring the utility of journals in the crime-psychology field : beyond the impact factor (2006) 5.86
    5.8576627 = sum of:
      5.8576627 = weight(author_txt:walters in 1337) [ClassicSimilarity], result of:
        5.8576627 = fieldWeight in 1337, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.37226 = idf(docFreq=9, maxDocs=43254)
          0.625 = fieldNorm(doc=1337)
    
  3. Walters, W.H.: Institutional journal costs in an open access environment (2007) 5.86
    5.8576627 = sum of:
      5.8576627 = weight(author_txt:walters in 2090) [ClassicSimilarity], result of:
        5.8576627 = fieldWeight in 2090, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.37226 = idf(docFreq=9, maxDocs=43254)
          0.625 = fieldNorm(doc=2090)
    
  4. Walters, W.H.: Google Scholar coverage of a multidisciplinary field (2007) 5.86
    5.8576627 = sum of:
      5.8576627 = weight(author_txt:walters in 2929) [ClassicSimilarity], result of:
        5.8576627 = fieldWeight in 2929, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.37226 = idf(docFreq=9, maxDocs=43254)
          0.625 = fieldNorm(doc=2929)
    
  5. Walters, G.D.: ¬The citation life cycle of articles published in 13 American Psychological Association journals : a 25-year longitudinal analysis (2011) 5.86
    5.8576627 = sum of:
      5.8576627 = weight(author_txt:walters in 1101) [ClassicSimilarity], result of:
        5.8576627 = fieldWeight in 1101, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.37226 = idf(docFreq=9, maxDocs=43254)
          0.625 = fieldNorm(doc=1101)
    

Similar documents (content)

  1. Tomaszewski, R.: Citations to chemical databases in scholarly articles : to cite or not to cite? (2019) 0.38
    0.38091394 = sum of:
      0.38091394 = product of:
        0.9522849 = sum of:
          0.04288897 = weight(abstract_txt:impact in 472) [ClassicSimilarity], result of:
            0.04288897 = score(doc=472,freq=3.0), product of:
              0.08594012 = queryWeight, product of:
                1.1003894 = boost
                4.610086 = idf(docFreq=1169, maxDocs=43254)
                0.01694106 = queryNorm
              0.49905643 = fieldWeight in 472, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.610086 = idf(docFreq=1169, maxDocs=43254)
                0.0625 = fieldNorm(doc=472)
          0.0505081 = weight(abstract_txt:four in 472) [ClassicSimilarity], result of:
            0.0505081 = score(doc=472,freq=2.0), product of:
              0.10970759 = queryWeight, product of:
                1.2432736 = boost
                5.2087 = idf(docFreq=642, maxDocs=43254)
                0.01694106 = queryNorm
              0.4603884 = fieldWeight in 472, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.2087 = idf(docFreq=642, maxDocs=43254)
                0.0625 = fieldNorm(doc=472)
          0.0560894 = weight(abstract_txt:publishers in 472) [ClassicSimilarity], result of:
            0.0560894 = score(doc=472,freq=1.0), product of:
              0.14822672 = queryWeight, product of:
                1.4451458 = boost
                6.0544443 = idf(docFreq=275, maxDocs=43254)
                0.01694106 = queryNorm
              0.37840277 = fieldWeight in 472, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0544443 = idf(docFreq=275, maxDocs=43254)
                0.0625 = fieldNorm(doc=472)
          0.04043366 = weight(abstract_txt:index in 472) [ClassicSimilarity], result of:
            0.04043366 = score(doc=472,freq=1.0), product of:
              0.13641593 = queryWeight, product of:
                1.6979566 = boost
                4.7423973 = idf(docFreq=1024, maxDocs=43254)
                0.01694106 = queryNorm
              0.29639983 = fieldWeight in 472, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.7423973 = idf(docFreq=1024, maxDocs=43254)
                0.0625 = fieldNorm(doc=472)
          0.052403614 = weight(abstract_txt:journal in 472) [ClassicSimilarity], result of:
            0.052403614 = score(doc=472,freq=1.0), product of:
              0.16216005 = queryWeight, product of:
                1.8512539 = boost
                5.170557 = idf(docFreq=667, maxDocs=43254)
                0.01694106 = queryNorm
              0.3231598 = fieldWeight in 472, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.170557 = idf(docFreq=667, maxDocs=43254)
                0.0625 = fieldNorm(doc=472)
          0.07765684 = weight(abstract_txt:publication in 472) [ClassicSimilarity], result of:
            0.07765684 = score(doc=472,freq=1.0), product of:
              0.23198992 = queryWeight, product of:
                2.556807 = boost
                5.355877 = idf(docFreq=554, maxDocs=43254)
                0.01694106 = queryNorm
              0.3347423 = fieldWeight in 472, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.355877 = idf(docFreq=554, maxDocs=43254)
                0.0625 = fieldNorm(doc=472)
          0.18684287 = weight(abstract_txt:databases in 472) [ClassicSimilarity], result of:
            0.18684287 = score(doc=472,freq=12.0), product of:
              0.19599421 = queryWeight, product of:
                2.6274836 = boost
                4.4031415 = idf(docFreq=1438, maxDocs=43254)
                0.01694106 = queryNorm
              0.9533081 = fieldWeight in 472, product of:
                3.4641016 = tf(freq=12.0), with freq of:
                  12.0 = termFreq=12.0
                4.4031415 = idf(docFreq=1438, maxDocs=43254)
                0.0625 = fieldNorm(doc=472)
          0.16503067 = weight(abstract_txt:coverage in 472) [ClassicSimilarity], result of:
            0.16503067 = score(doc=472,freq=1.0), product of:
              0.43895787 = queryWeight, product of:
                4.307452 = boost
                6.0153627 = idf(docFreq=286, maxDocs=43254)
                0.01694106 = queryNorm
              0.37596017 = fieldWeight in 472, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0153627 = idf(docFreq=286, maxDocs=43254)
                0.0625 = fieldNorm(doc=472)
          0.12164179 = weight(abstract_txt:journals in 472) [ClassicSimilarity], result of:
            0.12164179 = score(doc=472,freq=1.0), product of:
              0.37706584 = queryWeight, product of:
                4.312122 = boost
                5.161615 = idf(docFreq=673, maxDocs=43254)
                0.01694106 = queryNorm
              0.32260093 = fieldWeight in 472, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.161615 = idf(docFreq=673, maxDocs=43254)
                0.0625 = fieldNorm(doc=472)
          0.15878892 = weight(abstract_txt:articles in 472) [ClassicSimilarity], result of:
            0.15878892 = score(doc=472,freq=2.0), product of:
              0.37373415 = queryWeight, product of:
                4.589441 = boost
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.01694106 = queryNorm
              0.42487133 = fieldWeight in 472, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.0625 = fieldNorm(doc=472)
        0.4 = coord(10/25)
    
  2. Walters, W.H.; Wilder, E.I.: Bibliographic index coverage of a multidisciplinary field (2003) 0.38
    0.37992015 = sum of:
      0.37992015 = product of:
        1.0553337 = sum of:
          0.01909692 = weight(abstract_txt:bibliographic in 4115) [ClassicSimilarity], result of:
            0.01909692 = score(doc=4115,freq=1.0), product of:
              0.07227391 = queryWeight, product of:
                1.0091115 = boost
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.01694106 = queryNorm
              0.2642298 = fieldWeight in 4115, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.0625 = fieldNorm(doc=4115)
          0.030362772 = weight(abstract_txt:published in 4115) [ClassicSimilarity], result of:
            0.030362772 = score(doc=4115,freq=1.0), product of:
              0.09845405 = queryWeight, product of:
                1.1777828 = boost
                4.9343257 = idf(docFreq=845, maxDocs=43254)
                0.01694106 = queryNorm
              0.30839536 = fieldWeight in 4115, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.9343257 = idf(docFreq=845, maxDocs=43254)
                0.0625 = fieldNorm(doc=4115)
          0.04043366 = weight(abstract_txt:index in 4115) [ClassicSimilarity], result of:
            0.04043366 = score(doc=4115,freq=1.0), product of:
              0.13641593 = queryWeight, product of:
                1.6979566 = boost
                4.7423973 = idf(docFreq=1024, maxDocs=43254)
                0.01694106 = queryNorm
              0.29639983 = fieldWeight in 4115, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.7423973 = idf(docFreq=1024, maxDocs=43254)
                0.0625 = fieldNorm(doc=4115)
          0.052403614 = weight(abstract_txt:journal in 4115) [ClassicSimilarity], result of:
            0.052403614 = score(doc=4115,freq=1.0), product of:
              0.16216005 = queryWeight, product of:
                1.8512539 = boost
                5.170557 = idf(docFreq=667, maxDocs=43254)
                0.01694106 = queryNorm
              0.3231598 = fieldWeight in 4115, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.170557 = idf(docFreq=667, maxDocs=43254)
                0.0625 = fieldNorm(doc=4115)
          0.12230859 = weight(abstract_txt:indexed in 4115) [ClassicSimilarity], result of:
            0.12230859 = score(doc=4115,freq=2.0), product of:
              0.22646323 = queryWeight, product of:
                2.1877258 = boost
                6.1103244 = idf(docFreq=260, maxDocs=43254)
                0.01694106 = queryNorm
              0.54008144 = fieldWeight in 4115, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.1103244 = idf(docFreq=260, maxDocs=43254)
                0.0625 = fieldNorm(doc=4115)
          0.12060656 = weight(abstract_txt:databases in 4115) [ClassicSimilarity], result of:
            0.12060656 = score(doc=4115,freq=5.0), product of:
              0.19599421 = queryWeight, product of:
                2.6274836 = boost
                4.4031415 = idf(docFreq=1438, maxDocs=43254)
                0.01694106 = queryNorm
              0.61535776 = fieldWeight in 4115, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.4031415 = idf(docFreq=1438, maxDocs=43254)
                0.0625 = fieldNorm(doc=4115)
          0.28584152 = weight(abstract_txt:coverage in 4115) [ClassicSimilarity], result of:
            0.28584152 = score(doc=4115,freq=3.0), product of:
              0.43895787 = queryWeight, product of:
                4.307452 = boost
                6.0153627 = idf(docFreq=286, maxDocs=43254)
                0.01694106 = queryNorm
              0.6511821 = fieldWeight in 4115, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.0153627 = idf(docFreq=286, maxDocs=43254)
                0.0625 = fieldNorm(doc=4115)
          0.27199933 = weight(abstract_txt:journals in 4115) [ClassicSimilarity], result of:
            0.27199933 = score(doc=4115,freq=5.0), product of:
              0.37706584 = queryWeight, product of:
                4.312122 = boost
                5.161615 = idf(docFreq=673, maxDocs=43254)
                0.01694106 = queryNorm
              0.72135764 = fieldWeight in 4115, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.161615 = idf(docFreq=673, maxDocs=43254)
                0.0625 = fieldNorm(doc=4115)
          0.11228073 = weight(abstract_txt:articles in 4115) [ClassicSimilarity], result of:
            0.11228073 = score(doc=4115,freq=1.0), product of:
              0.37373415 = queryWeight, product of:
                4.589441 = boost
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.01694106 = queryNorm
              0.3004294 = fieldWeight in 4115, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.0625 = fieldNorm(doc=4115)
        0.36 = coord(9/25)
    
  3. Vaughan, L.; Shaw, D.: Web citation data for impact assessment : a comparison of four science disciplines (2005) 0.33
    0.33485022 = sum of:
      0.33485022 = product of:
        0.83712554 = sum of:
          0.01909692 = weight(abstract_txt:bibliographic in 5881) [ClassicSimilarity], result of:
            0.01909692 = score(doc=5881,freq=1.0), product of:
              0.07227391 = queryWeight, product of:
                1.0091115 = boost
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.01694106 = queryNorm
              0.2642298 = fieldWeight in 5881, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.0625 = fieldNorm(doc=5881)
          0.04952392 = weight(abstract_txt:impact in 5881) [ClassicSimilarity], result of:
            0.04952392 = score(doc=5881,freq=4.0), product of:
              0.08594012 = queryWeight, product of:
                1.1003894 = boost
                4.610086 = idf(docFreq=1169, maxDocs=43254)
                0.01694106 = queryNorm
              0.57626075 = fieldWeight in 5881, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.610086 = idf(docFreq=1169, maxDocs=43254)
                0.0625 = fieldNorm(doc=5881)
          0.042939443 = weight(abstract_txt:published in 5881) [ClassicSimilarity], result of:
            0.042939443 = score(doc=5881,freq=2.0), product of:
              0.09845405 = queryWeight, product of:
                1.1777828 = boost
                4.9343257 = idf(docFreq=845, maxDocs=43254)
                0.01694106 = queryNorm
              0.4361369 = fieldWeight in 5881, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.9343257 = idf(docFreq=845, maxDocs=43254)
                0.0625 = fieldNorm(doc=5881)
          0.03571462 = weight(abstract_txt:four in 5881) [ClassicSimilarity], result of:
            0.03571462 = score(doc=5881,freq=1.0), product of:
              0.10970759 = queryWeight, product of:
                1.2432736 = boost
                5.2087 = idf(docFreq=642, maxDocs=43254)
                0.01694106 = queryNorm
              0.32554376 = fieldWeight in 5881, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2087 = idf(docFreq=642, maxDocs=43254)
                0.0625 = fieldNorm(doc=5881)
          0.09085689 = weight(abstract_txt:biology in 5881) [ClassicSimilarity], result of:
            0.09085689 = score(doc=5881,freq=1.0), product of:
              0.20444565 = queryWeight, product of:
                1.6972169 = boost
                7.110497 = idf(docFreq=95, maxDocs=43254)
                0.01694106 = queryNorm
              0.44440606 = fieldWeight in 5881, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.110497 = idf(docFreq=95, maxDocs=43254)
                0.0625 = fieldNorm(doc=5881)
          0.0741099 = weight(abstract_txt:journal in 5881) [ClassicSimilarity], result of:
            0.0741099 = score(doc=5881,freq=2.0), product of:
              0.16216005 = queryWeight, product of:
                1.8512539 = boost
                5.170557 = idf(docFreq=667, maxDocs=43254)
                0.01694106 = queryNorm
              0.45701697 = fieldWeight in 5881, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.170557 = idf(docFreq=667, maxDocs=43254)
                0.0625 = fieldNorm(doc=5881)
          0.033187427 = weight(abstract_txt:provide in 5881) [ClassicSimilarity], result of:
            0.033187427 = score(doc=5881,freq=1.0), product of:
              0.13162297 = queryWeight, product of:
                1.9258801 = boost
                4.034241 = idf(docFreq=2080, maxDocs=43254)
                0.01694106 = queryNorm
              0.25214007 = fieldWeight in 5881, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.034241 = idf(docFreq=2080, maxDocs=43254)
                0.0625 = fieldNorm(doc=5881)
          0.05393689 = weight(abstract_txt:databases in 5881) [ClassicSimilarity], result of:
            0.05393689 = score(doc=5881,freq=1.0), product of:
              0.19599421 = queryWeight, product of:
                2.6274836 = boost
                4.4031415 = idf(docFreq=1438, maxDocs=43254)
                0.01694106 = queryNorm
              0.27519634 = fieldWeight in 5881, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.4031415 = idf(docFreq=1438, maxDocs=43254)
                0.0625 = fieldNorm(doc=5881)
          0.24328358 = weight(abstract_txt:journals in 5881) [ClassicSimilarity], result of:
            0.24328358 = score(doc=5881,freq=4.0), product of:
              0.37706584 = queryWeight, product of:
                4.312122 = boost
                5.161615 = idf(docFreq=673, maxDocs=43254)
                0.01694106 = queryNorm
              0.64520186 = fieldWeight in 5881, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.161615 = idf(docFreq=673, maxDocs=43254)
                0.0625 = fieldNorm(doc=5881)
          0.19447592 = weight(abstract_txt:articles in 5881) [ClassicSimilarity], result of:
            0.19447592 = score(doc=5881,freq=3.0), product of:
              0.37373415 = queryWeight, product of:
                4.589441 = boost
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.01694106 = queryNorm
              0.520359 = fieldWeight in 5881, 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=5881)
        0.4 = coord(10/25)
    
  4. Neuhaus, C.; Marx, W.; Daniel, H.-W.: ¬The publication and citation impact profiles of Angewandte Chemie and the Journal of the American Chemical Society based on the sections of Chemical Abstracts : a case study on the limitations of the Journal Impact Factor (2009) 0.32
    0.3170276 = sum of:
      0.3170276 = product of:
        0.8806322 = sum of:
          0.01909692 = weight(abstract_txt:bibliographic in 4708) [ClassicSimilarity], result of:
            0.01909692 = score(doc=4708,freq=1.0), product of:
              0.07227391 = queryWeight, product of:
                1.0091115 = boost
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.01694106 = queryNorm
              0.2642298 = fieldWeight in 4708, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.227677 = idf(docFreq=1714, maxDocs=43254)
                0.0625 = fieldNorm(doc=4708)
          0.06551398 = weight(abstract_txt:impact in 4708) [ClassicSimilarity], result of:
            0.06551398 = score(doc=4708,freq=7.0), product of:
              0.08594012 = queryWeight, product of:
                1.1003894 = boost
                4.610086 = idf(docFreq=1169, maxDocs=43254)
                0.01694106 = queryNorm
              0.7623213 = fieldWeight in 4708, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                4.610086 = idf(docFreq=1169, maxDocs=43254)
                0.0625 = fieldNorm(doc=4708)
          0.042939443 = weight(abstract_txt:published in 4708) [ClassicSimilarity], result of:
            0.042939443 = score(doc=4708,freq=2.0), product of:
              0.09845405 = queryWeight, product of:
                1.1777828 = boost
                4.9343257 = idf(docFreq=845, maxDocs=43254)
                0.01694106 = queryNorm
              0.4361369 = fieldWeight in 4708, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.9343257 = idf(docFreq=845, maxDocs=43254)
                0.0625 = fieldNorm(doc=4708)
          0.04043366 = weight(abstract_txt:index in 4708) [ClassicSimilarity], result of:
            0.04043366 = score(doc=4708,freq=1.0), product of:
              0.13641593 = queryWeight, product of:
                1.6979566 = boost
                4.7423973 = idf(docFreq=1024, maxDocs=43254)
                0.01694106 = queryNorm
              0.29639983 = fieldWeight in 4708, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.7423973 = idf(docFreq=1024, maxDocs=43254)
                0.0625 = fieldNorm(doc=4708)
          0.13864693 = weight(abstract_txt:journal in 4708) [ClassicSimilarity], result of:
            0.13864693 = score(doc=4708,freq=7.0), product of:
              0.16216005 = queryWeight, product of:
                1.8512539 = boost
                5.170557 = idf(docFreq=667, maxDocs=43254)
                0.01694106 = queryNorm
              0.8550005 = fieldWeight in 4708, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                5.170557 = idf(docFreq=667, maxDocs=43254)
                0.0625 = fieldNorm(doc=4708)
          0.10982335 = weight(abstract_txt:publication in 4708) [ClassicSimilarity], result of:
            0.10982335 = score(doc=4708,freq=2.0), product of:
              0.23198992 = queryWeight, product of:
                2.556807 = boost
                5.355877 = idf(docFreq=554, maxDocs=43254)
                0.01694106 = queryNorm
              0.4733971 = fieldWeight in 4708, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.355877 = idf(docFreq=554, maxDocs=43254)
                0.0625 = fieldNorm(doc=4708)
          0.05393689 = weight(abstract_txt:databases in 4708) [ClassicSimilarity], result of:
            0.05393689 = score(doc=4708,freq=1.0), product of:
              0.19599421 = queryWeight, product of:
                2.6274836 = boost
                4.4031415 = idf(docFreq=1438, maxDocs=43254)
                0.01694106 = queryNorm
              0.27519634 = fieldWeight in 4708, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.4031415 = idf(docFreq=1438, maxDocs=43254)
                0.0625 = fieldNorm(doc=4708)
          0.2979603 = weight(abstract_txt:journals in 4708) [ClassicSimilarity], result of:
            0.2979603 = score(doc=4708,freq=6.0), product of:
              0.37706584 = queryWeight, product of:
                4.312122 = boost
                5.161615 = idf(docFreq=673, maxDocs=43254)
                0.01694106 = queryNorm
              0.7902077 = fieldWeight in 4708, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                5.161615 = idf(docFreq=673, maxDocs=43254)
                0.0625 = fieldNorm(doc=4708)
          0.11228073 = weight(abstract_txt:articles in 4708) [ClassicSimilarity], result of:
            0.11228073 = score(doc=4708,freq=1.0), product of:
              0.37373415 = queryWeight, product of:
                4.589441 = boost
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.01694106 = queryNorm
              0.3004294 = fieldWeight in 4708, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.0625 = fieldNorm(doc=4708)
        0.36 = coord(9/25)
    
  5. 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) 0.31
    0.31133527 = sum of:
      0.31133527 = product of:
        0.9729227 = sum of:
          0.04952392 = weight(abstract_txt:impact in 4746) [ClassicSimilarity], result of:
            0.04952392 = score(doc=4746,freq=4.0), product of:
              0.08594012 = queryWeight, product of:
                1.1003894 = boost
                4.610086 = idf(docFreq=1169, maxDocs=43254)
                0.01694106 = queryNorm
              0.57626075 = fieldWeight in 4746, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.610086 = idf(docFreq=1169, maxDocs=43254)
                0.0625 = fieldNorm(doc=4746)
          0.04098026 = weight(abstract_txt:open in 4746) [ClassicSimilarity], result of:
            0.04098026 = score(doc=4746,freq=2.0), product of:
              0.09543605 = queryWeight, product of:
                1.1595905 = boost
                4.858109 = idf(docFreq=912, maxDocs=43254)
                0.01694106 = queryNorm
              0.4294002 = fieldWeight in 4746, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.858109 = idf(docFreq=912, maxDocs=43254)
                0.0625 = fieldNorm(doc=4746)
          0.052589867 = weight(abstract_txt:published in 4746) [ClassicSimilarity], result of:
            0.052589867 = score(doc=4746,freq=3.0), product of:
              0.09845405 = queryWeight, product of:
                1.1777828 = boost
                4.9343257 = idf(docFreq=845, maxDocs=43254)
                0.01694106 = queryNorm
              0.53415644 = fieldWeight in 4746, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.9343257 = idf(docFreq=845, maxDocs=43254)
                0.0625 = fieldNorm(doc=4746)
          0.08086732 = weight(abstract_txt:index in 4746) [ClassicSimilarity], result of:
            0.08086732 = score(doc=4746,freq=4.0), product of:
              0.13641593 = queryWeight, product of:
                1.6979566 = boost
                4.7423973 = idf(docFreq=1024, maxDocs=43254)
                0.01694106 = queryNorm
              0.59279966 = fieldWeight in 4746, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.7423973 = idf(docFreq=1024, maxDocs=43254)
                0.0625 = fieldNorm(doc=4746)
          0.052403614 = weight(abstract_txt:journal in 4746) [ClassicSimilarity], result of:
            0.052403614 = score(doc=4746,freq=1.0), product of:
              0.16216005 = queryWeight, product of:
                1.8512539 = boost
                5.170557 = idf(docFreq=667, maxDocs=43254)
                0.01694106 = queryNorm
              0.3231598 = fieldWeight in 4746, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.170557 = idf(docFreq=667, maxDocs=43254)
                0.0625 = fieldNorm(doc=4746)
          0.07765684 = weight(abstract_txt:publication in 4746) [ClassicSimilarity], result of:
            0.07765684 = score(doc=4746,freq=1.0), product of:
              0.23198992 = queryWeight, product of:
                2.556807 = boost
                5.355877 = idf(docFreq=554, maxDocs=43254)
                0.01694106 = queryNorm
              0.3347423 = fieldWeight in 4746, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.355877 = idf(docFreq=554, maxDocs=43254)
                0.0625 = fieldNorm(doc=4746)
          0.3218339 = weight(abstract_txt:journals in 4746) [ClassicSimilarity], result of:
            0.3218339 = score(doc=4746,freq=7.0), product of:
              0.37706584 = queryWeight, product of:
                4.312122 = boost
                5.161615 = idf(docFreq=673, maxDocs=43254)
                0.01694106 = queryNorm
              0.8535218 = fieldWeight in 4746, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                5.161615 = idf(docFreq=673, maxDocs=43254)
                0.0625 = fieldNorm(doc=4746)
          0.2970669 = weight(abstract_txt:articles in 4746) [ClassicSimilarity], result of:
            0.2970669 = score(doc=4746,freq=7.0), product of:
              0.37373415 = queryWeight, product of:
                4.589441 = boost
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.01694106 = queryNorm
              0.7948615 = fieldWeight in 4746, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                4.8068705 = idf(docFreq=960, maxDocs=43254)
                0.0625 = fieldNorm(doc=4746)
        0.32 = coord(8/25)