Document (#23686)

Author

Egghe, L.

Title

¬A noninformetric analysis of the relationship between citation age and journal productivity

Source

Journal of the American Society for Information Science and technology. 52(2001) no.5, S.371-377

Year

2001

Abstract

A problem, raised by Wallace (JASIS, 37,136-145,1986), on the relation between the journal's median citation age and its number of articles is studied. Leaving open the problem as such, we give a statistical explanation of this relationship, when replacing "median" by "mean" in Wallace's problem. The cloud of points, found by Wallace, is explained in this sense that the points are scattered over the area in first quadrant, limited by a curve of the form y=1 + E/x**2 where E is a constant. This curve is obtained by using the Central Limit Theorem in statistics and, hence, has no intrinsic informetric foundation. The article closes with some reflections on explanations of regularities in informetrics, based on statistical, probabilistic or informetric results, or on a combination thereof

Theme

Informetrie

Similar documents (author)

1. Egghe, L.: Little science, big science and beyond (1994) 4.74

   4.744121 = sum of:
     4.744121 = weight(author_txt:egghe in 6882) [ClassicSimilarity], result of:
       4.744121 = fieldWeight in 6882, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.590594 = idf(docFreq=60, maxDocs=44421)
         0.625 = fieldNorm(doc=6882)
   

2. Egghe, L.: Expansion of the field of informetrics : the second special issue (2006) 4.74

   4.744121 = sum of:
     4.744121 = weight(author_txt:egghe in 7118) [ClassicSimilarity], result of:
       4.744121 = fieldWeight in 7118, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.590594 = idf(docFreq=60, maxDocs=44421)
         0.625 = fieldNorm(doc=7118)
   

3. Egghe, L.: Expansion of the field of informetrics : origins and consequences (2005) 4.74

   4.744121 = sum of:
     4.744121 = weight(author_txt:egghe in 1978) [ClassicSimilarity], result of:
       4.744121 = fieldWeight in 1978, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.590594 = idf(docFreq=60, maxDocs=44421)
         0.625 = fieldNorm(doc=1978)
   

4. Egghe, L.: ¬The amount of actions needed for shelving and reshelving (1996) 4.74

   4.744121 = sum of:
     4.744121 = weight(author_txt:egghe in 4462) [ClassicSimilarity], result of:
       4.744121 = fieldWeight in 4462, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.590594 = idf(docFreq=60, maxDocs=44421)
         0.625 = fieldNorm(doc=4462)
   

5. Egghe, L.: Special features of the author - publication relationship and a new explanation of Lotka's law based on convolution theory (1994) 4.74

   4.744121 = sum of:
     4.744121 = weight(author_txt:egghe in 5136) [ClassicSimilarity], result of:
       4.744121 = fieldWeight in 5136, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.590594 = idf(docFreq=60, maxDocs=44421)
         0.625 = fieldNorm(doc=5136)
   

Similar documents (content)

1. Shi, D.; Rousseau, R.; Yang, L.; Li, J.: ¬A journal's impact factor is influenced by changes in publication delays of citing journals (2017) 0.16

   0.16363055 = sum of:
     0.16363055 = product of:
       0.6817939 = sum of:
         0.014845081 = weight(abstract_txt:this in 4441) [ClassicSimilarity], result of:
           0.014845081 = score(doc=4441,freq=2.0), product of:
             0.0465327 = queryWeight, product of:
               1.0270416 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.018829217 = queryNorm
             0.31902468 = fieldWeight in 4441, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.09375 = fieldNorm(doc=4441)
         0.11779729 = weight(abstract_txt:informetrics in 4441) [ClassicSimilarity], result of:
           0.11779729 = score(doc=4441,freq=1.0), product of:
             0.16171974 = queryWeight, product of:
               1.1054262 = boost
               7.769642 = idf(docFreq=50, maxDocs=44421)
               0.018829217 = queryNorm
             0.7284039 = fieldWeight in 4441, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.769642 = idf(docFreq=50, maxDocs=44421)
               0.09375 = fieldNorm(doc=4441)
         0.14915687 = weight(abstract_txt:journal's in 4441) [ClassicSimilarity], result of:
           0.14915687 = score(doc=4441,freq=1.0), product of:
             0.18927868 = queryWeight, product of:
               1.1959116 = boost
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.018829217 = queryNorm
             0.7880279 = fieldWeight in 4441, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.09375 = fieldNorm(doc=4441)
         0.058741953 = weight(abstract_txt:citation in 4441) [ClassicSimilarity], result of:
           0.058741953 = score(doc=4441,freq=1.0), product of:
             0.12812929 = queryWeight, product of:
               1.3915136 = boost
               4.890223 = idf(docFreq=907, maxDocs=44421)
               0.018829217 = queryNorm
             0.45845842 = fieldWeight in 4441, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.890223 = idf(docFreq=907, maxDocs=44421)
               0.09375 = fieldNorm(doc=4441)
         0.06681571 = weight(abstract_txt:problem in 4441) [ClassicSimilarity], result of:
           0.06681571 = score(doc=4441,freq=1.0), product of:
             0.15982044 = queryWeight, product of:
               1.903378 = boost
               4.4593854 = idf(docFreq=1396, maxDocs=44421)
               0.018829217 = queryNorm
             0.4180674 = fieldWeight in 4441, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4593854 = idf(docFreq=1396, maxDocs=44421)
               0.09375 = fieldNorm(doc=4441)
         0.274437 = weight(abstract_txt:curve in 4441) [ClassicSimilarity], result of:
           0.274437 = score(doc=4441,freq=1.0), product of:
             0.35807824 = queryWeight, product of:
               2.3262277 = boost
               8.175107 = idf(docFreq=33, maxDocs=44421)
               0.018829217 = queryNorm
             0.7664163 = fieldWeight in 4441, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.175107 = idf(docFreq=33, maxDocs=44421)
               0.09375 = fieldNorm(doc=4441)
       0.24 = coord(6/25)
   

2. Sarabia, J.M.; Sarabia, M.: Explicit expressions for the Leimkuhler curve in parametric families (2008) 0.15

   0.14978626 = sum of:
     0.14978626 = product of:
       0.7489313 = sum of:
         0.012120957 = weight(abstract_txt:this in 3120) [ClassicSimilarity], result of:
           0.012120957 = score(doc=3120,freq=3.0), product of:
             0.0465327 = queryWeight, product of:
               1.0270416 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.018829217 = queryNorm
             0.26048255 = fieldWeight in 3120, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.0625 = fieldNorm(doc=3120)
         0.11106036 = weight(abstract_txt:informetrics in 3120) [ClassicSimilarity], result of:
           0.11106036 = score(doc=3120,freq=2.0), product of:
             0.16171974 = queryWeight, product of:
               1.1054262 = boost
               7.769642 = idf(docFreq=50, maxDocs=44421)
               0.018829217 = queryNorm
             0.6867458 = fieldWeight in 3120, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.769642 = idf(docFreq=50, maxDocs=44421)
               0.0625 = fieldNorm(doc=3120)
         0.057141785 = weight(abstract_txt:statistical in 3120) [ClassicSimilarity], result of:
           0.057141785 = score(doc=3120,freq=1.0), product of:
             0.16483377 = queryWeight, product of:
               1.5782883 = boost
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.018829217 = queryNorm
             0.3466631 = fieldWeight in 3120, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.0625 = fieldNorm(doc=3120)
         0.15950167 = weight(abstract_txt:informetric in 3120) [ClassicSimilarity], result of:
           0.15950167 = score(doc=3120,freq=1.0), product of:
             0.32677877 = queryWeight, product of:
               2.222236 = boost
               7.809647 = idf(docFreq=48, maxDocs=44421)
               0.018829217 = queryNorm
             0.48810294 = fieldWeight in 3120, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.809647 = idf(docFreq=48, maxDocs=44421)
               0.0625 = fieldNorm(doc=3120)
         0.40910655 = weight(abstract_txt:curve in 3120) [ClassicSimilarity], result of:
           0.40910655 = score(doc=3120,freq=5.0), product of:
             0.35807824 = queryWeight, product of:
               2.3262277 = boost
               8.175107 = idf(docFreq=33, maxDocs=44421)
               0.018829217 = queryNorm
             1.142506 = fieldWeight in 3120, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               8.175107 = idf(docFreq=33, maxDocs=44421)
               0.0625 = fieldNorm(doc=3120)
       0.2 = coord(5/25)
   

3. Lafouge, T.; Prime-Claverie, C.: Production and use of information : Characterization of informetric distributions using effort function and density function. Exponential informetric process (2005) 0.12

   0.11848518 = sum of:
     0.11848518 = product of:
       0.7405324 = sum of:
         0.01731926 = weight(abstract_txt:this in 2062) [ClassicSimilarity], result of:
           0.01731926 = score(doc=2062,freq=2.0), product of:
             0.0465327 = queryWeight, product of:
               1.0270416 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.018829217 = queryNorm
             0.37219545 = fieldWeight in 2062, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.109375 = fieldNorm(doc=2062)
         0.1870479 = weight(abstract_txt:regularities in 2062) [ClassicSimilarity], result of:
           0.1870479 = score(doc=2062,freq=1.0), product of:
             0.19861415 = queryWeight, product of:
               1.2250487 = boost
               8.610425 = idf(docFreq=21, maxDocs=44421)
               0.018829217 = queryNorm
             0.94176525 = fieldWeight in 2062, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.610425 = idf(docFreq=21, maxDocs=44421)
               0.109375 = fieldNorm(doc=2062)
         0.1414187 = weight(abstract_txt:statistical in 2062) [ClassicSimilarity], result of:
           0.1414187 = score(doc=2062,freq=2.0), product of:
             0.16483377 = queryWeight, product of:
               1.5782883 = boost
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.018829217 = queryNorm
             0.85794735 = fieldWeight in 2062, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.109375 = fieldNorm(doc=2062)
         0.3947465 = weight(abstract_txt:informetric in 2062) [ClassicSimilarity], result of:
           0.3947465 = score(doc=2062,freq=2.0), product of:
             0.32677877 = queryWeight, product of:
               2.222236 = boost
               7.809647 = idf(docFreq=48, maxDocs=44421)
               0.018829217 = queryNorm
             1.2079931 = fieldWeight in 2062, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.809647 = idf(docFreq=48, maxDocs=44421)
               0.109375 = fieldNorm(doc=2062)
       0.16 = coord(4/25)
   

4. Robbin, A.; Koball, H.: Seeking explanation in theory : reflections on the social practices of organizations that distribute public use microdata files for research purposes (2001) 0.11

   0.11089378 = sum of:
     0.11089378 = product of:
       0.55446887 = sum of:
         0.07267161 = weight(abstract_txt:explanation in 852) [ClassicSimilarity], result of:
           0.07267161 = score(doc=852,freq=1.0), product of:
             0.13234377 = queryWeight, product of:
               7.028639 = idf(docFreq=106, maxDocs=44421)
               0.018829217 = queryNorm
             0.54911244 = fieldWeight in 852, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.028639 = idf(docFreq=106, maxDocs=44421)
               0.078125 = fieldNorm(doc=852)
         0.07853592 = weight(abstract_txt:limit in 852) [ClassicSimilarity], result of:
           0.07853592 = score(doc=852,freq=1.0), product of:
             0.13937104 = queryWeight, product of:
               1.0262059 = boost
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.018829217 = queryNorm
             0.56350243 = fieldWeight in 852, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.078125 = fieldNorm(doc=852)
         0.008747547 = weight(abstract_txt:this in 852) [ClassicSimilarity], result of:
           0.008747547 = score(doc=852,freq=1.0), product of:
             0.0465327 = queryWeight, product of:
               1.0270416 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.018829217 = queryNorm
             0.18798709 = fieldWeight in 852, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.078125 = fieldNorm(doc=852)
         0.2707982 = weight(title_txt:reflections in 852) [ClassicSimilarity], result of:
           0.2707982 = score(doc=852,freq=1.0), product of:
             0.16012242 = queryWeight, product of:
               1.0999535 = boost
               7.731176 = idf(docFreq=52, maxDocs=44421)
               0.018829217 = queryNorm
             1.6911948 = fieldWeight in 852, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.731176 = idf(docFreq=52, maxDocs=44421)
               0.21875 = fieldNorm(doc=852)
         0.12371559 = weight(abstract_txt:statistical in 852) [ClassicSimilarity], result of:
           0.12371559 = score(doc=852,freq=3.0), product of:
             0.16483377 = queryWeight, product of:
               1.5782883 = boost
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.018829217 = queryNorm
             0.7505476 = fieldWeight in 852, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.078125 = fieldNorm(doc=852)
       0.2 = coord(5/25)
   

5. Bar-Ilan, J.: Informetrics (2009) 0.09

   0.09359062 = sum of:
     0.09359062 = product of:
       0.5849414 = sum of:
         0.008747547 = weight(abstract_txt:this in 809) [ClassicSimilarity], result of:
           0.008747547 = score(doc=809,freq=1.0), product of:
             0.0465327 = queryWeight, product of:
               1.0270416 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.018829217 = queryNorm
             0.18798709 = fieldWeight in 809, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.078125 = fieldNorm(doc=809)
         0.19632882 = weight(abstract_txt:informetrics in 809) [ClassicSimilarity], result of:
           0.19632882 = score(doc=809,freq=4.0), product of:
             0.16171974 = queryWeight, product of:
               1.1054262 = boost
               7.769642 = idf(docFreq=50, maxDocs=44421)
               0.018829217 = queryNorm
             1.2140065 = fieldWeight in 809, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               7.769642 = idf(docFreq=50, maxDocs=44421)
               0.078125 = fieldNorm(doc=809)
         0.097903244 = weight(abstract_txt:citation in 809) [ClassicSimilarity], result of:
           0.097903244 = score(doc=809,freq=4.0), product of:
             0.12812929 = queryWeight, product of:
               1.3915136 = boost
               4.890223 = idf(docFreq=907, maxDocs=44421)
               0.018829217 = queryNorm
             0.76409733 = fieldWeight in 809, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.890223 = idf(docFreq=907, maxDocs=44421)
               0.078125 = fieldNorm(doc=809)
         0.2819618 = weight(abstract_txt:informetric in 809) [ClassicSimilarity], result of:
           0.2819618 = score(doc=809,freq=2.0), product of:
             0.32677877 = queryWeight, product of:
               2.222236 = boost
               7.809647 = idf(docFreq=48, maxDocs=44421)
               0.018829217 = queryNorm
             0.8628523 = fieldWeight in 809, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.809647 = idf(docFreq=48, maxDocs=44421)
               0.078125 = fieldNorm(doc=809)
       0.16 = coord(4/25)