Document (#29330)

Author

Fairthorne, R.A.

Title

Empirical hyperbolic distributions (Bradford-Zipf-Mandelbrot) for bibliometric description and prediction

Source

Journal of documentation. 25(1969), S.319-343

Year

1969

Footnote

Wiederabdruck in: Journal of documentation. 61(2005) no.2, S.171-193.

Theme

Informetrie

Object

Bradford-Verteilung
Zipf-Verteilung
Mandelbrot-Verteilung

Similar documents (author)

1. Fairthorne, R.A.: 'Browsing' schemes and 'specialist' schemes (1969) 5.87

   5.874302 = sum of:
     5.874302 = weight(author_txt:fairthorne in 1279) [ClassicSimilarity], result of:
       5.874302 = fieldWeight in 1279, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.398883 = idf(docFreq=9, maxDocs=44421)
         0.625 = fieldNorm(doc=1279)
   

2. Fairthorne, R.A.: ¬The symmetries of ignorance (1973) 5.87

   5.874302 = sum of:
     5.874302 = weight(author_txt:fairthorne in 1448) [ClassicSimilarity], result of:
       5.874302 = fieldWeight in 1448, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.398883 = idf(docFreq=9, maxDocs=44421)
         0.625 = fieldNorm(doc=1448)
   

3. Fairthorne, R.A.: Temporal structure in bibliographic classification (1978) 5.87

   5.874302 = sum of:
     5.874302 = weight(author_txt:fairthorne in 1649) [ClassicSimilarity], result of:
       5.874302 = fieldWeight in 1649, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.398883 = idf(docFreq=9, maxDocs=44421)
         0.625 = fieldNorm(doc=1649)
   

4. Fairthorne, R.A.: Towards information retrieval (1961) 5.87

   5.874302 = sum of:
     5.874302 = weight(author_txt:fairthorne in 1650) [ClassicSimilarity], result of:
       5.874302 = fieldWeight in 1650, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.398883 = idf(docFreq=9, maxDocs=44421)
         0.625 = fieldNorm(doc=1650)
   

5. Fairthorne, R.A.: Bradford's law and perspective (1980) 5.87

   5.874302 = sum of:
     5.874302 = weight(author_txt:fairthorne in 5060) [ClassicSimilarity], result of:
       5.874302 = fieldWeight in 5060, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.398883 = idf(docFreq=9, maxDocs=44421)
         0.625 = fieldNorm(doc=5060)
   

Similar documents (content)

1. Rousseau, R.: Robert Fairthorne and the empirical power laws (2005) 1.88

   1.8821673 = sum of:
     1.8821673 = sum of:
       0.066417135 = weight(abstract_txt:description in 5398) [ClassicSimilarity], result of:
         0.066417135 = score(doc=5398,freq=1.0), product of:
           0.14641288 = queryWeight, product of:
             4.83871 = idf(docFreq=955, maxDocs=44421)
             0.030258661 = queryNorm
           0.45362905 = fieldWeight in 5398, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             4.83871 = idf(docFreq=955, maxDocs=44421)
             0.09375 = fieldNorm(doc=5398)
       0.08251302 = weight(abstract_txt:empirical in 5398) [ClassicSimilarity], result of:
         0.08251302 = score(doc=5398,freq=1.0), product of:
           0.16920279 = queryWeight, product of:
             1.075014 = boost
             5.2016807 = idf(docFreq=664, maxDocs=44421)
             0.030258661 = queryNorm
           0.48765755 = fieldWeight in 5398, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             5.2016807 = idf(docFreq=664, maxDocs=44421)
             0.09375 = fieldNorm(doc=5398)
       0.13757546 = weight(abstract_txt:bibliometric in 5398) [ClassicSimilarity], result of:
         0.13757546 = score(doc=5398,freq=1.0), product of:
           0.2379139 = queryWeight, product of:
             1.274736 = boost
             6.168078 = idf(docFreq=252, maxDocs=44421)
             0.030258661 = queryNorm
           0.5782573 = fieldWeight in 5398, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.168078 = idf(docFreq=252, maxDocs=44421)
             0.09375 = fieldNorm(doc=5398)
       0.18648408 = weight(abstract_txt:distributions in 5398) [ClassicSimilarity], result of:
         0.18648408 = score(doc=5398,freq=1.0), product of:
           0.29139832 = queryWeight, product of:
             1.4107624 = boost
             6.82627 = idf(docFreq=130, maxDocs=44421)
             0.030258661 = queryNorm
           0.6399628 = fieldWeight in 5398, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.82627 = idf(docFreq=130, maxDocs=44421)
             0.09375 = fieldNorm(doc=5398)
       0.21796574 = weight(abstract_txt:prediction in 5398) [ClassicSimilarity], result of:
         0.21796574 = score(doc=5398,freq=1.0), product of:
           0.32333398 = queryWeight, product of:
             1.486059 = boost
             7.190608 = idf(docFreq=90, maxDocs=44421)
             0.030258661 = queryNorm
           0.6741195 = fieldWeight in 5398, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.190608 = idf(docFreq=90, maxDocs=44421)
             0.09375 = fieldNorm(doc=5398)
       0.3136392 = weight(abstract_txt:bradford in 5398) [ClassicSimilarity], result of:
         0.3136392 = score(doc=5398,freq=1.0), product of:
           0.4121096 = queryWeight, product of:
             1.6777093 = boost
             8.117949 = idf(docFreq=35, maxDocs=44421)
             0.030258661 = queryNorm
           0.7610577 = fieldWeight in 5398, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.117949 = idf(docFreq=35, maxDocs=44421)
             0.09375 = fieldNorm(doc=5398)
       0.3742529 = weight(abstract_txt:zipf in 5398) [ClassicSimilarity], result of:
         0.3742529 = score(doc=5398,freq=1.0), product of:
           0.4636276 = queryWeight, product of:
             1.7794877 = boost
             8.610425 = idf(docFreq=21, maxDocs=44421)
             0.030258661 = queryNorm
           0.8072274 = fieldWeight in 5398, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.610425 = idf(docFreq=21, maxDocs=44421)
             0.09375 = fieldNorm(doc=5398)
       0.5033198 = weight(abstract_txt:hyperbolic in 5398) [ClassicSimilarity], result of:
         0.5033198 = score(doc=5398,freq=1.0), product of:
           0.5648787 = queryWeight, product of:
             1.9642102 = boost
             9.504243 = idf(docFreq=8, maxDocs=44421)
             0.030258661 = queryNorm
           0.8910228 = fieldWeight in 5398, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             9.504243 = idf(docFreq=8, maxDocs=44421)
             0.09375 = fieldNorm(doc=5398)
   

2. Fairthorne, R.A.: Empirical hyperbolic distributions (Bradford-Zipf-Mandelbrot) for bibliometric description and prediction (2005) 1.08

   1.0803144 = sum of:
     1.0803144 = product of:
       1.7285031 = sum of:
         0.08251302 = weight(abstract_txt:empirical in 4776) [ClassicSimilarity], result of:
           0.08251302 = score(doc=4776,freq=1.0), product of:
             0.16920279 = queryWeight, product of:
               1.075014 = boost
               5.2016807 = idf(docFreq=664, maxDocs=44421)
               0.030258661 = queryNorm
             0.48765755 = fieldWeight in 4776, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2016807 = idf(docFreq=664, maxDocs=44421)
               0.09375 = fieldNorm(doc=4776)
         0.13757546 = weight(abstract_txt:bibliometric in 4776) [ClassicSimilarity], result of:
           0.13757546 = score(doc=4776,freq=1.0), product of:
             0.2379139 = queryWeight, product of:
               1.274736 = boost
               6.168078 = idf(docFreq=252, maxDocs=44421)
               0.030258661 = queryNorm
             0.5782573 = fieldWeight in 4776, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.168078 = idf(docFreq=252, maxDocs=44421)
               0.09375 = fieldNorm(doc=4776)
         0.3229999 = weight(abstract_txt:distributions in 4776) [ClassicSimilarity], result of:
           0.3229999 = score(doc=4776,freq=3.0), product of:
             0.29139832 = queryWeight, product of:
               1.4107624 = boost
               6.82627 = idf(docFreq=130, maxDocs=44421)
               0.030258661 = queryNorm
             1.108448 = fieldWeight in 4776, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.82627 = idf(docFreq=130, maxDocs=44421)
               0.09375 = fieldNorm(doc=4776)
         0.3136392 = weight(abstract_txt:bradford in 4776) [ClassicSimilarity], result of:
           0.3136392 = score(doc=4776,freq=1.0), product of:
             0.4121096 = queryWeight, product of:
               1.6777093 = boost
               8.117949 = idf(docFreq=35, maxDocs=44421)
               0.030258661 = queryNorm
             0.7610577 = fieldWeight in 4776, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.117949 = idf(docFreq=35, maxDocs=44421)
               0.09375 = fieldNorm(doc=4776)
         0.8717755 = weight(abstract_txt:hyperbolic in 4776) [ClassicSimilarity], result of:
           0.8717755 = score(doc=4776,freq=3.0), product of:
             0.5648787 = queryWeight, product of:
               1.9642102 = boost
               9.504243 = idf(docFreq=8, maxDocs=44421)
               0.030258661 = queryNorm
             1.5432968 = fieldWeight in 4776, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               9.504243 = idf(docFreq=8, maxDocs=44421)
               0.09375 = fieldNorm(doc=4776)
       0.625 = coord(5/8)
   

3. Wagner-Döbler, R.: Time dependencies of Bradford distributions : structures of journal output in 20th century logic and 19the century mathematics (1997) 0.39

   0.38914767 = sum of:
     0.38914767 = product of:
       1.0377271 = sum of:
         0.0962652 = weight(abstract_txt:empirical in 1324) [ClassicSimilarity], result of:
           0.0962652 = score(doc=1324,freq=1.0), product of:
             0.16920279 = queryWeight, product of:
               1.075014 = boost
               5.2016807 = idf(docFreq=664, maxDocs=44421)
               0.030258661 = queryNorm
             0.56893384 = fieldWeight in 1324, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2016807 = idf(docFreq=664, maxDocs=44421)
               0.109375 = fieldNorm(doc=1324)
         0.30768305 = weight(abstract_txt:distributions in 1324) [ClassicSimilarity], result of:
           0.30768305 = score(doc=1324,freq=2.0), product of:
             0.29139832 = queryWeight, product of:
               1.4107624 = boost
               6.82627 = idf(docFreq=130, maxDocs=44421)
               0.030258661 = queryNorm
             1.0558848 = fieldWeight in 1324, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.82627 = idf(docFreq=130, maxDocs=44421)
               0.109375 = fieldNorm(doc=1324)
         0.63377887 = weight(abstract_txt:bradford in 1324) [ClassicSimilarity], result of:
           0.63377887 = score(doc=1324,freq=3.0), product of:
             0.4121096 = queryWeight, product of:
               1.6777093 = boost
               8.117949 = idf(docFreq=35, maxDocs=44421)
               0.030258661 = queryNorm
             1.537889 = fieldWeight in 1324, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               8.117949 = idf(docFreq=35, maxDocs=44421)
               0.109375 = fieldNorm(doc=1324)
       0.375 = coord(3/8)
   

4. Heine, M.M.: Bradford ranking conventions and their application to a growing literature (1998) 0.39

   0.38877895 = sum of:
     0.38877895 = product of:
       1.0367439 = sum of:
         0.09724252 = weight(abstract_txt:empirical in 2069) [ClassicSimilarity], result of:
           0.09724252 = score(doc=2069,freq=2.0), product of:
             0.16920279 = queryWeight, product of:
               1.075014 = boost
               5.2016807 = idf(docFreq=664, maxDocs=44421)
               0.030258661 = queryNorm
             0.5747099 = fieldWeight in 2069, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.2016807 = idf(docFreq=664, maxDocs=44421)
               0.078125 = fieldNorm(doc=2069)
         0.1554034 = weight(abstract_txt:distributions in 2069) [ClassicSimilarity], result of:
           0.1554034 = score(doc=2069,freq=1.0), product of:
             0.29139832 = queryWeight, product of:
               1.4107624 = boost
               6.82627 = idf(docFreq=130, maxDocs=44421)
               0.030258661 = queryNorm
             0.53330237 = fieldWeight in 2069, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.82627 = idf(docFreq=130, maxDocs=44421)
               0.078125 = fieldNorm(doc=2069)
         0.78409797 = weight(abstract_txt:bradford in 2069) [ClassicSimilarity], result of:
           0.78409797 = score(doc=2069,freq=9.0), product of:
             0.4121096 = queryWeight, product of:
               1.6777093 = boost
               8.117949 = idf(docFreq=35, maxDocs=44421)
               0.030258661 = queryNorm
             1.9026442 = fieldWeight in 2069, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               8.117949 = idf(docFreq=35, maxDocs=44421)
               0.078125 = fieldNorm(doc=2069)
       0.375 = coord(3/8)
   

5. Richmond, P.A.: Classification from PRECIS : some possibilities (1976) 0.37

   0.371683 = sum of:
     0.371683 = product of:
       0.9911547 = sum of:
         0.0962652 = weight(abstract_txt:empirical in 1199) [ClassicSimilarity], result of:
           0.0962652 = score(doc=1199,freq=1.0), product of:
             0.16920279 = queryWeight, product of:
               1.075014 = boost
               5.2016807 = idf(docFreq=664, maxDocs=44421)
               0.030258661 = queryNorm
             0.56893384 = fieldWeight in 1199, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2016807 = idf(docFreq=664, maxDocs=44421)
               0.109375 = fieldNorm(doc=1199)
         0.30768305 = weight(abstract_txt:distributions in 1199) [ClassicSimilarity], result of:
           0.30768305 = score(doc=1199,freq=2.0), product of:
             0.29139832 = queryWeight, product of:
               1.4107624 = boost
               6.82627 = idf(docFreq=130, maxDocs=44421)
               0.030258661 = queryNorm
             1.0558848 = fieldWeight in 1199, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.82627 = idf(docFreq=130, maxDocs=44421)
               0.109375 = fieldNorm(doc=1199)
         0.5872064 = weight(abstract_txt:hyperbolic in 1199) [ClassicSimilarity], result of:
           0.5872064 = score(doc=1199,freq=1.0), product of:
             0.5648787 = queryWeight, product of:
               1.9642102 = boost
               9.504243 = idf(docFreq=8, maxDocs=44421)
               0.030258661 = queryNorm
             1.0395266 = fieldWeight in 1199, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.504243 = idf(docFreq=8, maxDocs=44421)
               0.109375 = fieldNorm(doc=1199)
       0.375 = coord(3/8)