Document (#35160)

Author

Hu, X.

Title

Loads of special authorship functions : linear growth in the percentage of "equal first authors" and corresponding authors

Source

Journal of the American Society for Information Science and Technology. 60(2009) no.11, S.2378-2381

Year

2009

Abstract

We show that between 1999 and 2008 the percentage of articles with more than one corresponding author or with several authors that contributed equally, leading to so-called equal first authors, has steadily been on the rise. Increasing numbers of corresponding authors and equally contributing authors may lead to increased stress on teamwork if not properly acknowledged in research evaluation exercises.

Theme

Informetrie

Similar documents (content)

1. Tian, W.; Cai, R.; Fang, Z.; Geng, Y.; Wang, X.; Hu, Z.: Understanding co-corresponding authorship : a bibliometric analysis and detailed overview (2024) 0.12

   0.11890419 = sum of:
     0.11890419 = product of:
       0.7431512 = sum of:
         0.15007855 = weight(abstract_txt:authorship in 2410) [ClassicSimilarity], result of:
           0.15007855 = score(doc=2410,freq=6.0), product of:
             0.14056464 = queryWeight, product of:
               1.235513 = boost
               6.9740796 = idf(docFreq=112, maxDocs=44421)
               0.016313301 = queryNorm
             1.0676836 = fieldWeight in 2410, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               6.9740796 = idf(docFreq=112, maxDocs=44421)
               0.0625 = fieldNorm(doc=2410)
         0.026042935 = weight(abstract_txt:first in 2410) [ClassicSimilarity], result of:
           0.026042935 = score(doc=2410,freq=1.0), product of:
             0.100119196 = queryWeight, product of:
               1.4746296 = boost
               4.1619086 = idf(docFreq=1880, maxDocs=44421)
               0.016313301 = queryNorm
             0.2601193 = fieldWeight in 2410, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1619086 = idf(docFreq=1880, maxDocs=44421)
               0.0625 = fieldNorm(doc=2410)
         0.41339558 = weight(abstract_txt:corresponding in 2410) [ClassicSimilarity], result of:
           0.41339558 = score(doc=2410,freq=9.0), product of:
             0.34800398 = queryWeight, product of:
               3.3671465 = boost
               6.3354917 = idf(docFreq=213, maxDocs=44421)
               0.016313301 = queryNorm
             1.1879047 = fieldWeight in 2410, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               6.3354917 = idf(docFreq=213, maxDocs=44421)
               0.0625 = fieldNorm(doc=2410)
         0.15363412 = weight(abstract_txt:authors in 2410) [ClassicSimilarity], result of:
           0.15363412 = score(doc=2410,freq=2.0), product of:
             0.37417918 = queryWeight, product of:
               4.9377003 = boost
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.016313301 = queryNorm
             0.4105897 = fieldWeight in 2410, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.0625 = fieldNorm(doc=2410)
       0.16 = coord(4/25)
   

2. He, S.; Spink, A.: ¬A comparison of foreign authorship distribution in JASIST and the Journal of Documentation (2002) 0.10

   0.09936612 = sum of:
     0.09936612 = product of:
       0.49683058 = sum of:
         0.06908607 = weight(abstract_txt:increased in 230) [ClassicSimilarity], result of:
           0.06908607 = score(doc=230,freq=2.0), product of:
             0.09223666 = queryWeight, product of:
               1.0008317 = boost
               5.6493783 = idf(docFreq=424, maxDocs=44421)
               0.016313301 = queryNorm
             0.7490088 = fieldWeight in 230, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.6493783 = idf(docFreq=424, maxDocs=44421)
               0.09375 = fieldNorm(doc=230)
         0.09575469 = weight(abstract_txt:1999 in 230) [ClassicSimilarity], result of:
           0.09575469 = score(doc=230,freq=2.0), product of:
             0.11466124 = queryWeight, product of:
               1.1158803 = boost
               6.2987905 = idf(docFreq=221, maxDocs=44421)
               0.016313301 = queryNorm
             0.83510953 = fieldWeight in 230, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.2987905 = idf(docFreq=221, maxDocs=44421)
               0.09375 = fieldNorm(doc=230)
         0.12997183 = weight(abstract_txt:authorship in 230) [ClassicSimilarity], result of:
           0.12997183 = score(doc=230,freq=2.0), product of:
             0.14056464 = queryWeight, product of:
               1.235513 = boost
               6.9740796 = idf(docFreq=112, maxDocs=44421)
               0.016313301 = queryNorm
             0.924641 = fieldWeight in 230, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.9740796 = idf(docFreq=112, maxDocs=44421)
               0.09375 = fieldNorm(doc=230)
         0.0390644 = weight(abstract_txt:first in 230) [ClassicSimilarity], result of:
           0.0390644 = score(doc=230,freq=1.0), product of:
             0.100119196 = queryWeight, product of:
               1.4746296 = boost
               4.1619086 = idf(docFreq=1880, maxDocs=44421)
               0.016313301 = queryNorm
             0.39017892 = fieldWeight in 230, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1619086 = idf(docFreq=1880, maxDocs=44421)
               0.09375 = fieldNorm(doc=230)
         0.1629536 = weight(abstract_txt:authors in 230) [ClassicSimilarity], result of:
           0.1629536 = score(doc=230,freq=1.0), product of:
             0.37417918 = queryWeight, product of:
               4.9377003 = boost
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.016313301 = queryNorm
             0.43549615 = fieldWeight in 230, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.09375 = fieldNorm(doc=230)
       0.2 = coord(5/25)
   

3. Ivanisevic, R.; Sapunar, D.: Multiple authorship in a small medical journal : a case study of the Croatian Medical Journal (2006) 0.08

   0.078067094 = sum of:
     0.078067094 = product of:
       0.48791933 = sum of:
         0.04030021 = weight(abstract_txt:increased in 106) [ClassicSimilarity], result of:
           0.04030021 = score(doc=106,freq=2.0), product of:
             0.09223666 = queryWeight, product of:
               1.0008317 = boost
               5.6493783 = idf(docFreq=424, maxDocs=44421)
               0.016313301 = queryNorm
             0.4369218 = fieldWeight in 106, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.6493783 = idf(docFreq=424, maxDocs=44421)
               0.0546875 = fieldNorm(doc=106)
         0.039496794 = weight(abstract_txt:1999 in 106) [ClassicSimilarity], result of:
           0.039496794 = score(doc=106,freq=1.0), product of:
             0.11466124 = queryWeight, product of:
               1.1158803 = boost
               6.2987905 = idf(docFreq=221, maxDocs=44421)
               0.016313301 = queryNorm
             0.3444651 = fieldWeight in 106, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.2987905 = idf(docFreq=221, maxDocs=44421)
               0.0546875 = fieldNorm(doc=106)
         0.09285636 = weight(abstract_txt:authorship in 106) [ClassicSimilarity], result of:
           0.09285636 = score(doc=106,freq=3.0), product of:
             0.14056464 = queryWeight, product of:
               1.235513 = boost
               6.9740796 = idf(docFreq=112, maxDocs=44421)
               0.016313301 = queryNorm
             0.6605955 = fieldWeight in 106, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.9740796 = idf(docFreq=112, maxDocs=44421)
               0.0546875 = fieldNorm(doc=106)
         0.31526595 = weight(abstract_txt:authors in 106) [ClassicSimilarity], result of:
           0.31526595 = score(doc=106,freq=11.0), product of:
             0.37417918 = queryWeight, product of:
               4.9377003 = boost
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.016313301 = queryNorm
             0.84255344 = fieldWeight in 106, product of:
               3.3166249 = tf(freq=11.0), with freq of:
                 11.0 = termFreq=11.0
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.0546875 = fieldNorm(doc=106)
       0.16 = coord(4/25)
   

4. McQueen, T.F.; Fleck, R.A. Jr.: Changing patterns of Internet usage and challenges at colleges and universities (2005) 0.07

   0.07214838 = sum of:
     0.07214838 = product of:
       0.4509274 = sum of:
         0.057571724 = weight(abstract_txt:increased in 1769) [ClassicSimilarity], result of:
           0.057571724 = score(doc=1769,freq=2.0), product of:
             0.09223666 = queryWeight, product of:
               1.0008317 = boost
               5.6493783 = idf(docFreq=424, maxDocs=44421)
               0.016313301 = queryNorm
             0.624174 = fieldWeight in 1769, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.6493783 = idf(docFreq=424, maxDocs=44421)
               0.078125 = fieldNorm(doc=1769)
         0.056423992 = weight(abstract_txt:1999 in 1769) [ClassicSimilarity], result of:
           0.056423992 = score(doc=1769,freq=1.0), product of:
             0.11466124 = queryWeight, product of:
               1.1158803 = boost
               6.2987905 = idf(docFreq=221, maxDocs=44421)
               0.016313301 = queryNorm
             0.492093 = fieldWeight in 1769, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.2987905 = idf(docFreq=221, maxDocs=44421)
               0.078125 = fieldNorm(doc=1769)
         0.201137 = weight(abstract_txt:loads in 1769) [ClassicSimilarity], result of:
           0.201137 = score(doc=1769,freq=1.0), product of:
             0.26756877 = queryWeight, product of:
               1.7046176 = boost
               9.622026 = idf(docFreq=7, maxDocs=44421)
               0.016313301 = queryNorm
             0.7517208 = fieldWeight in 1769, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.622026 = idf(docFreq=7, maxDocs=44421)
               0.078125 = fieldNorm(doc=1769)
         0.13579467 = weight(abstract_txt:authors in 1769) [ClassicSimilarity], result of:
           0.13579467 = score(doc=1769,freq=1.0), product of:
             0.37417918 = queryWeight, product of:
               4.9377003 = boost
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.016313301 = queryNorm
             0.36291346 = fieldWeight in 1769, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.078125 = fieldNorm(doc=1769)
       0.16 = coord(4/25)
   

5. Hottenrott, H.; Rose, M.E.; Lawson, C.: ¬The rise of multiple institutional affiliations in academia (2021) 0.07

   0.06677083 = sum of:
     0.06677083 = product of:
       0.33385414 = sum of:
         0.03248636 = weight(abstract_txt:growth in 1314) [ClassicSimilarity], result of:
           0.03248636 = score(doc=1314,freq=1.0), product of:
             0.092083424 = queryWeight, product of:
               5.6446834 = idf(docFreq=426, maxDocs=44421)
               0.016313301 = queryNorm
             0.3527927 = fieldWeight in 1314, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6446834 = idf(docFreq=426, maxDocs=44421)
               0.0625 = fieldNorm(doc=1314)
         0.032567486 = weight(abstract_txt:increased in 1314) [ClassicSimilarity], result of:
           0.032567486 = score(doc=1314,freq=1.0), product of:
             0.09223666 = queryWeight, product of:
               1.0008317 = boost
               5.6493783 = idf(docFreq=424, maxDocs=44421)
               0.016313301 = queryNorm
             0.35308614 = fieldWeight in 1314, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6493783 = idf(docFreq=424, maxDocs=44421)
               0.0625 = fieldNorm(doc=1314)
         0.054594748 = weight(abstract_txt:rise in 1314) [ClassicSimilarity], result of:
           0.054594748 = score(doc=1314,freq=1.0), product of:
             0.13016114 = queryWeight, product of:
               1.1889126 = boost
               6.7110353 = idf(docFreq=146, maxDocs=44421)
               0.016313301 = queryNorm
             0.4194397 = fieldWeight in 1314, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.7110353 = idf(docFreq=146, maxDocs=44421)
               0.0625 = fieldNorm(doc=1314)
         0.026042935 = weight(abstract_txt:first in 1314) [ClassicSimilarity], result of:
           0.026042935 = score(doc=1314,freq=1.0), product of:
             0.100119196 = queryWeight, product of:
               1.4746296 = boost
               4.1619086 = idf(docFreq=1880, maxDocs=44421)
               0.016313301 = queryNorm
             0.2601193 = fieldWeight in 1314, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1619086 = idf(docFreq=1880, maxDocs=44421)
               0.0625 = fieldNorm(doc=1314)
         0.18816261 = weight(abstract_txt:authors in 1314) [ClassicSimilarity], result of:
           0.18816261 = score(doc=1314,freq=3.0), product of:
             0.37417918 = queryWeight, product of:
               4.9377003 = boost
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.016313301 = queryNorm
             0.50286764 = fieldWeight in 1314, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.0625 = fieldNorm(doc=1314)
       0.2 = coord(5/25)