Document (#21031)

Author

Avramescu, A.

Title

Teoria difuziei informatiei stiintifice

Source

Probleme de Informare si Documentare. 31(1997) nos.3/4, S.207-220

Year

1997

Abstract

The theory of diffusion can be successfully applied to scientific information dissemination by identifying space with a series of successive authors, and potential (temperature) with the interest of new authors towards earlier published papers, measured by the number of citations. As the total number of citation equals the number of references, the conservation law is fulfilled and Fourier's parabolic differential equation can be applied

Content

Contribution to the 30th anniversary issue of 'Probleme de Informare si Documentare' - Reprint of an article which originally appeared in 'Probleme de Informare si Documentare 13(1978) no.2, S.43-64'

Footnote

Übers. des Titels: Scientific information diffusion theory

Theme

Informetrie

Similar documents (content)

1. Didegah, F.; Thelwall, M.: Determinants of research citation impact in nanoscience and nanotechnology (2013) 0.14

   0.13531546 = sum of:
     0.13531546 = product of:
       0.4832695 = sum of:
         0.05482875 = weight(abstract_txt:published in 1737) [ClassicSimilarity], result of:
           0.05482875 = score(doc=1737,freq=2.0), product of:
             0.101157226 = queryWeight, product of:
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.020620085 = queryNorm
             0.5420152 = fieldWeight in 1737, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.078125 = fieldNorm(doc=1737)
         0.01021435 = weight(abstract_txt:with in 1737) [ClassicSimilarity], result of:
           0.01021435 = score(doc=1737,freq=1.0), product of:
             0.05237835 = queryWeight, product of:
               1.017636 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.020620085 = queryNorm
             0.19501092 = fieldWeight in 1737, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.078125 = fieldNorm(doc=1737)
         0.047934446 = weight(abstract_txt:papers in 1737) [ClassicSimilarity], result of:
           0.047934446 = score(doc=1737,freq=1.0), product of:
             0.11652876 = queryWeight, product of:
               1.0732925 = boost
               5.2653174 = idf(docFreq=623, maxDocs=44421)
               0.020620085 = queryNorm
             0.41135293 = fieldWeight in 1737, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2653174 = idf(docFreq=623, maxDocs=44421)
               0.078125 = fieldNorm(doc=1737)
         0.049766667 = weight(abstract_txt:citations in 1737) [ClassicSimilarity], result of:
           0.049766667 = score(doc=1737,freq=1.0), product of:
             0.11947958 = queryWeight, product of:
               1.0867969 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.020620085 = queryNorm
             0.41652864 = fieldWeight in 1737, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.078125 = fieldNorm(doc=1737)
         0.12887517 = weight(abstract_txt:references in 1737) [ClassicSimilarity], result of:
           0.12887517 = score(doc=1737,freq=5.0), product of:
             0.13176219 = queryWeight, product of:
               1.1412925 = boost
               5.598909 = idf(docFreq=446, maxDocs=44421)
               0.020620085 = queryNorm
             0.9780891 = fieldWeight in 1737, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.598909 = idf(docFreq=446, maxDocs=44421)
               0.078125 = fieldNorm(doc=1737)
         0.09310181 = weight(abstract_txt:authors in 1737) [ClassicSimilarity], result of:
           0.09310181 = score(doc=1737,freq=2.0), product of:
             0.18140116 = queryWeight, product of:
               1.8938107 = boost
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.020620085 = queryNorm
             0.5132371 = fieldWeight in 1737, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.078125 = fieldNorm(doc=1737)
         0.09854834 = weight(abstract_txt:number in 1737) [ClassicSimilarity], result of:
           0.09854834 = score(doc=1737,freq=2.0), product of:
             0.21567407 = queryWeight, product of:
               2.5290718 = boost
               4.1356745 = idf(docFreq=1930, maxDocs=44421)
               0.020620085 = queryNorm
             0.45693177 = fieldWeight in 1737, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.1356745 = idf(docFreq=1930, maxDocs=44421)
               0.078125 = fieldNorm(doc=1737)
       0.28 = coord(7/25)
   

2. Frandsen, T.F.; Rousseau, R.; Rowlands, I.: Diffusion factors (2006) 0.13

   0.13479133 = sum of:
     0.13479133 = product of:
       0.48139763 = sum of:
         0.0101116905 = weight(abstract_txt:with in 587) [ClassicSimilarity], result of:
           0.0101116905 = score(doc=587,freq=2.0), product of:
             0.05237835 = queryWeight, product of:
               1.017636 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.020620085 = queryNorm
             0.19305095 = fieldWeight in 587, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.0546875 = fieldNorm(doc=587)
         0.030544866 = weight(abstract_txt:interest in 587) [ClassicSimilarity], result of:
           0.030544866 = score(doc=587,freq=1.0), product of:
             0.10945311 = queryWeight, product of:
               1.040197 = boost
               5.1029587 = idf(docFreq=733, maxDocs=44421)
               0.020620085 = queryNorm
             0.27906805 = fieldWeight in 587, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1029587 = idf(docFreq=733, maxDocs=44421)
               0.0546875 = fieldNorm(doc=587)
         0.033554114 = weight(abstract_txt:papers in 587) [ClassicSimilarity], result of:
           0.033554114 = score(doc=587,freq=1.0), product of:
             0.11652876 = queryWeight, product of:
               1.0732925 = boost
               5.2653174 = idf(docFreq=623, maxDocs=44421)
               0.020620085 = queryNorm
             0.28794706 = fieldWeight in 587, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2653174 = idf(docFreq=623, maxDocs=44421)
               0.0546875 = fieldNorm(doc=587)
         0.03817929 = weight(abstract_txt:series in 587) [ClassicSimilarity], result of:
           0.03817929 = score(doc=587,freq=1.0), product of:
             0.1270051 = queryWeight, product of:
               1.1205007 = boost
               5.4969096 = idf(docFreq=494, maxDocs=44421)
               0.020620085 = queryNorm
             0.30061224 = fieldWeight in 587, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4969096 = idf(docFreq=494, maxDocs=44421)
               0.0546875 = fieldNorm(doc=587)
         0.053228475 = weight(abstract_txt:earlier in 587) [ClassicSimilarity], result of:
           0.053228475 = score(doc=587,freq=1.0), product of:
             0.15850098 = queryWeight, product of:
               1.2517498 = boost
               6.140786 = idf(docFreq=259, maxDocs=44421)
               0.020620085 = queryNorm
             0.33582425 = fieldWeight in 587, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.140786 = idf(docFreq=259, maxDocs=44421)
               0.0546875 = fieldNorm(doc=587)
         0.26504108 = weight(abstract_txt:diffusion in 587) [ClassicSimilarity], result of:
           0.26504108 = score(doc=587,freq=9.0), product of:
             0.2221931 = queryWeight, product of:
               1.4820637 = boost
               7.270651 = idf(docFreq=83, maxDocs=44421)
               0.020620085 = queryNorm
             1.1928412 = fieldWeight in 587, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               7.270651 = idf(docFreq=83, maxDocs=44421)
               0.0546875 = fieldNorm(doc=587)
         0.05073811 = weight(abstract_txt:applied in 587) [ClassicSimilarity], result of:
           0.05073811 = score(doc=587,freq=1.0), product of:
             0.19342034 = queryWeight, product of:
               1.9555441 = boost
               4.7967167 = idf(docFreq=996, maxDocs=44421)
               0.020620085 = queryNorm
             0.26232046 = fieldWeight in 587, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.7967167 = idf(docFreq=996, maxDocs=44421)
               0.0546875 = fieldNorm(doc=587)
       0.28 = coord(7/25)
   

3. Liu, Y.; Rousseau, R.: Knowledge diffusion through publications and citations : a case study using ESI-fields as unit of diffusion (2010) 0.13

   0.13401207 = sum of:
     0.13401207 = product of:
       0.55838364 = sum of:
         0.031015828 = weight(abstract_txt:published in 321) [ClassicSimilarity], result of:
           0.031015828 = score(doc=321,freq=1.0), product of:
             0.101157226 = queryWeight, product of:
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.020620085 = queryNorm
             0.3066101 = fieldWeight in 321, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.0625 = fieldNorm(doc=321)
         0.056304555 = weight(abstract_txt:citations in 321) [ClassicSimilarity], result of:
           0.056304555 = score(doc=321,freq=2.0), product of:
             0.11947958 = queryWeight, product of:
               1.0867969 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.020620085 = queryNorm
             0.47124836 = fieldWeight in 321, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0625 = fieldNorm(doc=321)
         0.067101866 = weight(abstract_txt:measured in 321) [ClassicSimilarity], result of:
           0.067101866 = score(doc=321,freq=1.0), product of:
             0.16921195 = queryWeight, product of:
               1.293353 = boost
               6.3448815 = idf(docFreq=211, maxDocs=44421)
               0.020620085 = queryNorm
             0.3965551 = fieldWeight in 321, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.3448815 = idf(docFreq=211, maxDocs=44421)
               0.0625 = fieldNorm(doc=321)
         0.2671363 = weight(abstract_txt:diffusion in 321) [ClassicSimilarity], result of:
           0.2671363 = score(doc=321,freq=7.0), product of:
             0.2221931 = queryWeight, product of:
               1.4820637 = boost
               7.270651 = idf(docFreq=83, maxDocs=44421)
               0.020620085 = queryNorm
             1.2022709 = fieldWeight in 321, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               7.270651 = idf(docFreq=83, maxDocs=44421)
               0.0625 = fieldNorm(doc=321)
         0.05798641 = weight(abstract_txt:applied in 321) [ClassicSimilarity], result of:
           0.05798641 = score(doc=321,freq=1.0), product of:
             0.19342034 = queryWeight, product of:
               1.9555441 = boost
               4.7967167 = idf(docFreq=996, maxDocs=44421)
               0.020620085 = queryNorm
             0.2997948 = fieldWeight in 321, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.7967167 = idf(docFreq=996, maxDocs=44421)
               0.0625 = fieldNorm(doc=321)
         0.07883867 = weight(abstract_txt:number in 321) [ClassicSimilarity], result of:
           0.07883867 = score(doc=321,freq=2.0), product of:
             0.21567407 = queryWeight, product of:
               2.5290718 = boost
               4.1356745 = idf(docFreq=1930, maxDocs=44421)
               0.020620085 = queryNorm
             0.36554542 = fieldWeight in 321, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.1356745 = idf(docFreq=1930, maxDocs=44421)
               0.0625 = fieldNorm(doc=321)
       0.24 = coord(6/25)
   

4. Egghe, L.; Ravichandra Rao, I.K.: Duality revisited : construction of fractional frequency distributions based on two dual Lotka laws (2002) 0.12

   0.12266883 = sum of:
     0.12266883 = product of:
       0.51112014 = sum of:
         0.025019946 = weight(abstract_txt:with in 2006) [ClassicSimilarity], result of:
           0.025019946 = score(doc=2006,freq=6.0), product of:
             0.05237835 = queryWeight, product of:
               1.017636 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.020620085 = queryNorm
             0.47767726 = fieldWeight in 2006, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.078125 = fieldNorm(doc=2006)
         0.08302489 = weight(abstract_txt:papers in 2006) [ClassicSimilarity], result of:
           0.08302489 = score(doc=2006,freq=3.0), product of:
             0.11652876 = queryWeight, product of:
               1.0732925 = boost
               5.2653174 = idf(docFreq=623, maxDocs=44421)
               0.020620085 = queryNorm
             0.7124841 = fieldWeight in 2006, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.2653174 = idf(docFreq=623, maxDocs=44421)
               0.078125 = fieldNorm(doc=2006)
         0.060814988 = weight(abstract_txt:total in 2006) [ClassicSimilarity], result of:
           0.060814988 = score(doc=2006,freq=1.0), product of:
             0.13656573 = queryWeight, product of:
               1.1619098 = boost
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.020620085 = queryNorm
             0.4453166 = fieldWeight in 2006, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.078125 = fieldNorm(doc=2006)
         0.10753776 = weight(abstract_txt:earlier in 2006) [ClassicSimilarity], result of:
           0.10753776 = score(doc=2006,freq=2.0), product of:
             0.15850098 = queryWeight, product of:
               1.2517498 = boost
               6.140786 = idf(docFreq=259, maxDocs=44421)
               0.020620085 = queryNorm
             0.67846745 = fieldWeight in 2006, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.140786 = idf(docFreq=259, maxDocs=44421)
               0.078125 = fieldNorm(doc=2006)
         0.11402597 = weight(abstract_txt:authors in 2006) [ClassicSimilarity], result of:
           0.11402597 = score(doc=2006,freq=3.0), product of:
             0.18140116 = queryWeight, product of:
               1.8938107 = boost
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.020620085 = queryNorm
             0.62858456 = fieldWeight in 2006, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.078125 = fieldNorm(doc=2006)
         0.12069657 = weight(abstract_txt:number in 2006) [ClassicSimilarity], result of:
           0.12069657 = score(doc=2006,freq=3.0), product of:
             0.21567407 = queryWeight, product of:
               2.5290718 = boost
               4.1356745 = idf(docFreq=1930, maxDocs=44421)
               0.020620085 = queryNorm
             0.55962485 = fieldWeight in 2006, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.1356745 = idf(docFreq=1930, maxDocs=44421)
               0.078125 = fieldNorm(doc=2006)
       0.24 = coord(6/25)
   

5. González-Teruel, A.; Pérez-Pulido, M.: ¬The diffusion and influence of theoretical models of information behaviour : the case of Savolainen's ELIS model (2020) 0.12

   0.121131025 = sum of:
     0.121131025 = product of:
       0.37853447 = sum of:
         0.038380127 = weight(abstract_txt:published in 974) [ClassicSimilarity], result of:
           0.038380127 = score(doc=974,freq=2.0), product of:
             0.101157226 = queryWeight, product of:
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.020620085 = queryNorm
             0.37941065 = fieldWeight in 974, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.0546875 = fieldNorm(doc=974)
         0.007150045 = weight(abstract_txt:with in 974) [ClassicSimilarity], result of:
           0.007150045 = score(doc=974,freq=1.0), product of:
             0.05237835 = queryWeight, product of:
               1.017636 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.020620085 = queryNorm
             0.13650765 = fieldWeight in 974, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.0546875 = fieldNorm(doc=974)
         0.033554114 = weight(abstract_txt:papers in 974) [ClassicSimilarity], result of:
           0.033554114 = score(doc=974,freq=1.0), product of:
             0.11652876 = queryWeight, product of:
               1.0732925 = boost
               5.2653174 = idf(docFreq=623, maxDocs=44421)
               0.020620085 = queryNorm
             0.28794706 = fieldWeight in 974, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2653174 = idf(docFreq=623, maxDocs=44421)
               0.0546875 = fieldNorm(doc=974)
         0.03483667 = weight(abstract_txt:citations in 974) [ClassicSimilarity], result of:
           0.03483667 = score(doc=974,freq=1.0), product of:
             0.11947958 = queryWeight, product of:
               1.0867969 = boost
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.020620085 = queryNorm
             0.29157007 = fieldWeight in 974, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.331567 = idf(docFreq=583, maxDocs=44421)
               0.0546875 = fieldNorm(doc=974)
         0.04257049 = weight(abstract_txt:total in 974) [ClassicSimilarity], result of:
           0.04257049 = score(doc=974,freq=1.0), product of:
             0.13656573 = queryWeight, product of:
               1.1619098 = boost
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.020620085 = queryNorm
             0.31172162 = fieldWeight in 974, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.0546875 = fieldNorm(doc=974)
         0.06471218 = weight(abstract_txt:dissemination in 974) [ClassicSimilarity], result of:
           0.06471218 = score(doc=974,freq=1.0), product of:
             0.18054827 = queryWeight, product of:
               1.3359746 = boost
               6.553973 = idf(docFreq=171, maxDocs=44421)
               0.020620085 = queryNorm
             0.3584204 = fieldWeight in 974, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.553973 = idf(docFreq=171, maxDocs=44421)
               0.0546875 = fieldNorm(doc=974)
         0.088347025 = weight(abstract_txt:diffusion in 974) [ClassicSimilarity], result of:
           0.088347025 = score(doc=974,freq=1.0), product of:
             0.2221931 = queryWeight, product of:
               1.4820637 = boost
               7.270651 = idf(docFreq=83, maxDocs=44421)
               0.020620085 = queryNorm
             0.3976137 = fieldWeight in 974, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.270651 = idf(docFreq=83, maxDocs=44421)
               0.0546875 = fieldNorm(doc=974)
         0.06898383 = weight(abstract_txt:number in 974) [ClassicSimilarity], result of:
           0.06898383 = score(doc=974,freq=2.0), product of:
             0.21567407 = queryWeight, product of:
               2.5290718 = boost
               4.1356745 = idf(docFreq=1930, maxDocs=44421)
               0.020620085 = queryNorm
             0.31985223 = fieldWeight in 974, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.1356745 = idf(docFreq=1930, maxDocs=44421)
               0.0546875 = fieldNorm(doc=974)
       0.32 = coord(8/25)