Document (#32987)

Author

Bookstein, A.
Moed, H.
Yitzahki, M.

Title

Measures of international collaboration in scientific literature : part I

Source

Information processing and management. 42(2006) no.6, S.1408-1421

Year

2006

Abstract

Research evaluating models of scientific productivity require coherent metrics that quantify various key relations among papers as revealed by patterns of citation. This paper focuses on the various conceptual problems inherent in measuring the degree to which papers tend to cite other papers written by authors of the same nationality. We suggest that measures can be given a degree of assurance of coherence by being based on mathematical models describing the citation process. A number of such models are developed.

Footnote

Beitrag in einem "Special Issue on Informetrics"

Theme

Informetrie

Similar documents (author)

1. Bookstein, A.; Moed, H.; Yitzahki, M.: Measures of international collaboration in scientific literature : part II (2006) 4.59

   4.589404 = sum of:
     4.589404 = sum of:
       2.218735 = weight(author_txt:bookstein in 1990) [ClassicSimilarity], result of:
         2.218735 = score(doc=1990,freq=1.0), product of:
           0.6913291 = queryWeight, product of:
             8.558335 = idf(docFreq=22, maxDocs=44083)
             0.08077846 = queryNorm
           3.2093759 = fieldWeight in 1990, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.558335 = idf(docFreq=22, maxDocs=44083)
             0.375 = fieldNorm(doc=1990)
       2.3706691 = weight(author_txt:moed in 1990) [ClassicSimilarity], result of:
         2.3706691 = score(doc=1990,freq=1.0), product of:
           0.72253996 = queryWeight, product of:
             1.0223238 = boost
             8.749391 = idf(docFreq=18, maxDocs=44083)
             0.08077846 = queryNorm
           3.2810216 = fieldWeight in 1990, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.749391 = idf(docFreq=18, maxDocs=44083)
             0.375 = fieldNorm(doc=1990)
   

2. Moed, H.F.: Differences in the construction of SCI based bibliometric indicators among various producers : a first overview (1996) 1.98

   1.9755576 = sum of:
     1.9755576 = product of:
       3.9511151 = sum of:
         3.9511151 = weight(author_txt:moed in 5142) [ClassicSimilarity], result of:
           3.9511151 = score(doc=5142,freq=1.0), product of:
             0.72253996 = queryWeight, product of:
               1.0223238 = boost
               8.749391 = idf(docFreq=18, maxDocs=44083)
               0.08077846 = queryNorm
             5.468369 = fieldWeight in 5142, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.749391 = idf(docFreq=18, maxDocs=44083)
               0.625 = fieldNorm(doc=5142)
       0.5 = coord(1/2)
   

3. Moed, H.F.: Statistical relationships between downloads and citations at the level of individual documents within a single journal (2005) 1.98

   1.9755576 = sum of:
     1.9755576 = product of:
       3.9511151 = sum of:
         3.9511151 = weight(author_txt:moed in 4883) [ClassicSimilarity], result of:
           3.9511151 = score(doc=4883,freq=1.0), product of:
             0.72253996 = queryWeight, product of:
               1.0223238 = boost
               8.749391 = idf(docFreq=18, maxDocs=44083)
               0.08077846 = queryNorm
             5.468369 = fieldWeight in 4883, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.749391 = idf(docFreq=18, maxDocs=44083)
               0.625 = fieldNorm(doc=4883)
       0.5 = coord(1/2)
   

4. Moed, H.F.: ¬The effect of "open access" on citation impact : an analysis of ArXiv's condensed matter section (2007) 1.98

   1.9755576 = sum of:
     1.9755576 = product of:
       3.9511151 = sum of:
         3.9511151 = weight(author_txt:moed in 1622) [ClassicSimilarity], result of:
           3.9511151 = score(doc=1622,freq=1.0), product of:
             0.72253996 = queryWeight, product of:
               1.0223238 = boost
               8.749391 = idf(docFreq=18, maxDocs=44083)
               0.08077846 = queryNorm
             5.468369 = fieldWeight in 1622, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.749391 = idf(docFreq=18, maxDocs=44083)
               0.625 = fieldNorm(doc=1622)
       0.5 = coord(1/2)
   

5. Bookstein, A.: Probability and Fuzzy-set applications to information retrieval (1985) 1.85

   1.8489457 = sum of:
     1.8489457 = product of:
       3.6978915 = sum of:
         3.6978915 = weight(author_txt:bookstein in 781) [ClassicSimilarity], result of:
           3.6978915 = score(doc=781,freq=1.0), product of:
             0.6913291 = queryWeight, product of:
               8.558335 = idf(docFreq=22, maxDocs=44083)
               0.08077846 = queryNorm
             5.3489594 = fieldWeight in 781, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.558335 = idf(docFreq=22, maxDocs=44083)
               0.625 = fieldNorm(doc=781)
       0.5 = coord(1/2)
   

Similar documents (content)

1. Morris, S.A.; Goldstein, M.L.: Manifestation of research teams in journal literature : a growth model of papers, authors, collaboration, coauthorship, weak ties, and Lotka's law (2007) 0.15

   0.15245149 = sum of:
     0.15245149 = product of:
       0.63521457 = sum of:
         0.12374878 = weight(abstract_txt:collaboration in 1595) [ClassicSimilarity], result of:
           0.12374878 = score(doc=1595,freq=6.0), product of:
             0.13816825 = queryWeight, product of:
               1.052538 = boost
               5.850285 = idf(docFreq=344, maxDocs=44083)
               0.02243848 = queryNorm
             0.89563835 = fieldWeight in 1595, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.850285 = idf(docFreq=344, maxDocs=44083)
               0.0625 = fieldNorm(doc=1595)
         0.06450342 = weight(abstract_txt:mathematical in 1595) [ClassicSimilarity], result of:
           0.06450342 = score(doc=1595,freq=1.0), product of:
             0.16261223 = queryWeight, product of:
               1.1418532 = boost
               6.346722 = idf(docFreq=209, maxDocs=44083)
               0.02243848 = queryNorm
             0.39667013 = fieldWeight in 1595, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.346722 = idf(docFreq=209, maxDocs=44083)
               0.0625 = fieldNorm(doc=1595)
         0.07357282 = weight(abstract_txt:metrics in 1595) [ClassicSimilarity], result of:
           0.07357282 = score(doc=1595,freq=1.0), product of:
             0.17751825 = queryWeight, product of:
               1.1930405 = boost
               6.6312346 = idf(docFreq=157, maxDocs=44083)
               0.02243848 = queryNorm
             0.41445217 = fieldWeight in 1595, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.6312346 = idf(docFreq=157, maxDocs=44083)
               0.0625 = fieldNorm(doc=1595)
         0.11350222 = weight(abstract_txt:productivity in 1595) [ClassicSimilarity], result of:
           0.11350222 = score(doc=1595,freq=2.0), product of:
             0.18811537 = queryWeight, product of:
               1.2281342 = boost
               6.826295 = idf(docFreq=129, maxDocs=44083)
               0.02243848 = queryNorm
             0.60336494 = fieldWeight in 1595, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.826295 = idf(docFreq=129, maxDocs=44083)
               0.0625 = fieldNorm(doc=1595)
         0.18400566 = weight(abstract_txt:degree in 1595) [ClassicSimilarity], result of:
           0.18400566 = score(doc=1595,freq=4.0), product of:
             0.2596025 = queryWeight, product of:
               2.0403426 = boost
               5.670382 = idf(docFreq=412, maxDocs=44083)
               0.02243848 = queryNorm
             0.70879775 = fieldWeight in 1595, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.670382 = idf(docFreq=412, maxDocs=44083)
               0.0625 = fieldNorm(doc=1595)
         0.075881675 = weight(abstract_txt:models in 1595) [ClassicSimilarity], result of:
           0.075881675 = score(doc=1595,freq=1.0), product of:
             0.26135436 = queryWeight, product of:
               2.5073166 = boost
               4.645443 = idf(docFreq=1150, maxDocs=44083)
               0.02243848 = queryNorm
             0.2903402 = fieldWeight in 1595, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.645443 = idf(docFreq=1150, maxDocs=44083)
               0.0625 = fieldNorm(doc=1595)
       0.24 = coord(6/25)
   

2. Bookstein, A.; Moed, H.; Yitzahki, M.: Measures of international collaboration in scientific literature : part II (2006) 0.14

   0.14299683 = sum of:
     0.14299683 = product of:
       0.7149842 = sum of:
         0.13715108 = weight(abstract_txt:coherent in 1990) [ClassicSimilarity], result of:
           0.13715108 = score(doc=1990,freq=1.0), product of:
             0.20519654 = queryWeight, product of:
               1.2826811 = boost
               7.1294813 = idf(docFreq=95, maxDocs=44083)
               0.02243848 = queryNorm
             0.66838884 = fieldWeight in 1990, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.1294813 = idf(docFreq=95, maxDocs=44083)
               0.09375 = fieldNorm(doc=1990)
         0.12570782 = weight(abstract_txt:citation in 1990) [ClassicSimilarity], result of:
           0.12570782 = score(doc=1990,freq=2.0), product of:
             0.19361785 = queryWeight, product of:
               1.7620627 = boost
               4.8970056 = idf(docFreq=894, maxDocs=44083)
               0.02243848 = queryNorm
             0.64925736 = fieldWeight in 1990, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.8970056 = idf(docFreq=894, maxDocs=44083)
               0.09375 = fieldNorm(doc=1990)
         0.17160532 = weight(abstract_txt:measures in 1990) [ClassicSimilarity], result of:
           0.17160532 = score(doc=1990,freq=2.0), product of:
             0.2382636 = queryWeight, product of:
               1.9546884 = boost
               5.4323378 = idf(docFreq=523, maxDocs=44083)
               0.02243848 = queryNorm
             0.720233 = fieldWeight in 1990, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.4323378 = idf(docFreq=523, maxDocs=44083)
               0.09375 = fieldNorm(doc=1990)
         0.11382251 = weight(abstract_txt:models in 1990) [ClassicSimilarity], result of:
           0.11382251 = score(doc=1990,freq=1.0), product of:
             0.26135436 = queryWeight, product of:
               2.5073166 = boost
               4.645443 = idf(docFreq=1150, maxDocs=44083)
               0.02243848 = queryNorm
             0.43551028 = fieldWeight in 1990, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.645443 = idf(docFreq=1150, maxDocs=44083)
               0.09375 = fieldNorm(doc=1990)
         0.16669741 = weight(abstract_txt:papers in 1990) [ClassicSimilarity], result of:
           0.16669741 = score(doc=1990,freq=1.0), product of:
             0.337052 = queryWeight, product of:
               2.8473623 = boost
               5.2754645 = idf(docFreq=612, maxDocs=44083)
               0.02243848 = queryNorm
             0.4945748 = fieldWeight in 1990, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2754645 = idf(docFreq=612, maxDocs=44083)
               0.09375 = fieldNorm(doc=1990)
       0.2 = coord(5/25)
   

3. Jiang, X.; Liu, J.: Extracting the evolutionary backbone of scientific domains : the semantic main path network analysis approach based on citation context analysis (2023) 0.13

   0.1341 = sum of:
     0.1341 = product of:
       0.55875003 = sum of:
         0.09143406 = weight(abstract_txt:coherent in 1167) [ClassicSimilarity], result of:
           0.09143406 = score(doc=1167,freq=1.0), product of:
             0.20519654 = queryWeight, product of:
               1.2826811 = boost
               7.1294813 = idf(docFreq=95, maxDocs=44083)
               0.02243848 = queryNorm
             0.44559258 = fieldWeight in 1167, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.1294813 = idf(docFreq=95, maxDocs=44083)
               0.0625 = fieldNorm(doc=1167)
         0.1282286 = weight(abstract_txt:coherence in 1167) [ClassicSimilarity], result of:
           0.1282286 = score(doc=1167,freq=1.0), product of:
             0.25709167 = queryWeight, product of:
               1.4357462 = boost
               7.9802575 = idf(docFreq=40, maxDocs=44083)
               0.02243848 = queryNorm
             0.4987661 = fieldWeight in 1167, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.9802575 = idf(docFreq=40, maxDocs=44083)
               0.0625 = fieldNorm(doc=1167)
         0.042929705 = weight(abstract_txt:various in 1167) [ClassicSimilarity], result of:
           0.042929705 = score(doc=1167,freq=1.0), product of:
             0.15617564 = queryWeight, product of:
               1.5825423 = boost
               4.3980947 = idf(docFreq=1473, maxDocs=44083)
               0.02243848 = queryNorm
             0.27488092 = fieldWeight in 1167, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3980947 = idf(docFreq=1473, maxDocs=44083)
               0.0625 = fieldNorm(doc=1167)
         0.08776835 = weight(abstract_txt:scientific in 1167) [ClassicSimilarity], result of:
           0.08776835 = score(doc=1167,freq=3.0), product of:
             0.17443205 = queryWeight, product of:
               1.6724833 = boost
               4.6480527 = idf(docFreq=1147, maxDocs=44083)
               0.02243848 = queryNorm
             0.50316644 = fieldWeight in 1167, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.6480527 = idf(docFreq=1147, maxDocs=44083)
               0.0625 = fieldNorm(doc=1167)
         0.13250767 = weight(abstract_txt:citation in 1167) [ClassicSimilarity], result of:
           0.13250767 = score(doc=1167,freq=5.0), product of:
             0.19361785 = queryWeight, product of:
               1.7620627 = boost
               4.8970056 = idf(docFreq=894, maxDocs=44083)
               0.02243848 = queryNorm
             0.6843773 = fieldWeight in 1167, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.8970056 = idf(docFreq=894, maxDocs=44083)
               0.0625 = fieldNorm(doc=1167)
         0.075881675 = weight(abstract_txt:models in 1167) [ClassicSimilarity], result of:
           0.075881675 = score(doc=1167,freq=1.0), product of:
             0.26135436 = queryWeight, product of:
               2.5073166 = boost
               4.645443 = idf(docFreq=1150, maxDocs=44083)
               0.02243848 = queryNorm
             0.2903402 = fieldWeight in 1167, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.645443 = idf(docFreq=1150, maxDocs=44083)
               0.0625 = fieldNorm(doc=1167)
       0.24 = coord(6/25)
   

4. Calster, B. Van: It takes time : a remarkable example of delayed recognition (2012) 0.13

   0.13018157 = sum of:
     0.13018157 = product of:
       0.5424232 = sum of:
         0.08062927 = weight(abstract_txt:mathematical in 1508) [ClassicSimilarity], result of:
           0.08062927 = score(doc=1508,freq=1.0), product of:
             0.16261223 = queryWeight, product of:
               1.1418532 = boost
               6.346722 = idf(docFreq=209, maxDocs=44083)
               0.02243848 = queryNorm
             0.49583766 = fieldWeight in 1508, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.346722 = idf(docFreq=209, maxDocs=44083)
               0.078125 = fieldNorm(doc=1508)
         0.05366213 = weight(abstract_txt:various in 1508) [ClassicSimilarity], result of:
           0.05366213 = score(doc=1508,freq=1.0), product of:
             0.15617564 = queryWeight, product of:
               1.5825423 = boost
               4.3980947 = idf(docFreq=1473, maxDocs=44083)
               0.02243848 = queryNorm
             0.34360114 = fieldWeight in 1508, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3980947 = idf(docFreq=1473, maxDocs=44083)
               0.078125 = fieldNorm(doc=1508)
         0.06334136 = weight(abstract_txt:scientific in 1508) [ClassicSimilarity], result of:
           0.06334136 = score(doc=1508,freq=1.0), product of:
             0.17443205 = queryWeight, product of:
               1.6724833 = boost
               4.6480527 = idf(docFreq=1147, maxDocs=44083)
               0.02243848 = queryNorm
             0.3631291 = fieldWeight in 1508, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.6480527 = idf(docFreq=1147, maxDocs=44083)
               0.078125 = fieldNorm(doc=1508)
         0.10475651 = weight(abstract_txt:citation in 1508) [ClassicSimilarity], result of:
           0.10475651 = score(doc=1508,freq=2.0), product of:
             0.19361785 = queryWeight, product of:
               1.7620627 = boost
               4.8970056 = idf(docFreq=894, maxDocs=44083)
               0.02243848 = queryNorm
             0.5410478 = fieldWeight in 1508, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.8970056 = idf(docFreq=894, maxDocs=44083)
               0.078125 = fieldNorm(doc=1508)
         0.10111941 = weight(abstract_txt:measures in 1508) [ClassicSimilarity], result of:
           0.10111941 = score(doc=1508,freq=1.0), product of:
             0.2382636 = queryWeight, product of:
               1.9546884 = boost
               5.4323378 = idf(docFreq=523, maxDocs=44083)
               0.02243848 = queryNorm
             0.4244014 = fieldWeight in 1508, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4323378 = idf(docFreq=523, maxDocs=44083)
               0.078125 = fieldNorm(doc=1508)
         0.13891453 = weight(abstract_txt:papers in 1508) [ClassicSimilarity], result of:
           0.13891453 = score(doc=1508,freq=1.0), product of:
             0.337052 = queryWeight, product of:
               2.8473623 = boost
               5.2754645 = idf(docFreq=612, maxDocs=44083)
               0.02243848 = queryNorm
             0.41214567 = fieldWeight in 1508, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2754645 = idf(docFreq=612, maxDocs=44083)
               0.078125 = fieldNorm(doc=1508)
       0.24 = coord(6/25)
   

5. Schreiber, M.: ¬An empirical investigation of the g-index for 26 physicists in comparison with the h-index, the A-index, and the R-index (2008) 0.13

   0.12503074 = sum of:
     0.12503074 = product of:
       0.52096146 = sum of:
         0.05044528 = weight(abstract_txt:evaluating in 2969) [ClassicSimilarity], result of:
           0.05044528 = score(doc=2969,freq=1.0), product of:
             0.13803157 = queryWeight, product of:
               1.0520173 = boost
               5.8473907 = idf(docFreq=345, maxDocs=44083)
               0.02243848 = queryNorm
             0.36546192 = fieldWeight in 2969, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8473907 = idf(docFreq=345, maxDocs=44083)
               0.0625 = fieldNorm(doc=2969)
         0.117109545 = weight(abstract_txt:quantify in 2969) [ClassicSimilarity], result of:
           0.117109545 = score(doc=2969,freq=1.0), product of:
             0.24200606 = queryWeight, product of:
               1.3929862 = boost
               7.7425857 = idf(docFreq=51, maxDocs=44083)
               0.02243848 = queryNorm
             0.4839116 = fieldWeight in 2969, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.7425857 = idf(docFreq=51, maxDocs=44083)
               0.0625 = fieldNorm(doc=2969)
         0.042929705 = weight(abstract_txt:various in 2969) [ClassicSimilarity], result of:
           0.042929705 = score(doc=2969,freq=1.0), product of:
             0.15617564 = queryWeight, product of:
               1.5825423 = boost
               4.3980947 = idf(docFreq=1473, maxDocs=44083)
               0.02243848 = queryNorm
             0.27488092 = fieldWeight in 2969, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3980947 = idf(docFreq=1473, maxDocs=44083)
               0.0625 = fieldNorm(doc=2969)
         0.050673086 = weight(abstract_txt:scientific in 2969) [ClassicSimilarity], result of:
           0.050673086 = score(doc=2969,freq=1.0), product of:
             0.17443205 = queryWeight, product of:
               1.6724833 = boost
               4.6480527 = idf(docFreq=1147, maxDocs=44083)
               0.02243848 = queryNorm
             0.2905033 = fieldWeight in 2969, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.6480527 = idf(docFreq=1147, maxDocs=44083)
               0.0625 = fieldNorm(doc=2969)
         0.102639996 = weight(abstract_txt:citation in 2969) [ClassicSimilarity], result of:
           0.102639996 = score(doc=2969,freq=3.0), product of:
             0.19361785 = queryWeight, product of:
               1.7620627 = boost
               4.8970056 = idf(docFreq=894, maxDocs=44083)
               0.02243848 = queryNorm
             0.5301164 = fieldWeight in 2969, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.8970056 = idf(docFreq=894, maxDocs=44083)
               0.0625 = fieldNorm(doc=2969)
         0.15716383 = weight(abstract_txt:papers in 2969) [ClassicSimilarity], result of:
           0.15716383 = score(doc=2969,freq=2.0), product of:
             0.337052 = queryWeight, product of:
               2.8473623 = boost
               5.2754645 = idf(docFreq=612, maxDocs=44083)
               0.02243848 = queryNorm
             0.46628958 = fieldWeight in 2969, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.2754645 = idf(docFreq=612, maxDocs=44083)
               0.0625 = fieldNorm(doc=2969)
       0.24 = coord(6/25)