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
    5.871439 = sum of:
      5.871439 = weight(author_txt:fairthorne in 1280) [ClassicSimilarity], result of:
        5.871439 = fieldWeight in 1280, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.394302 = idf(docFreq=9, maxDocs=44218)
          0.625 = fieldNorm(doc=1280)
    
  2. Fairthorne, R.A.: ¬The symmetries of ignorance (1973) 5.87
    5.871439 = sum of:
      5.871439 = weight(author_txt:fairthorne in 1449) [ClassicSimilarity], result of:
        5.871439 = fieldWeight in 1449, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.394302 = idf(docFreq=9, maxDocs=44218)
          0.625 = fieldNorm(doc=1449)
    
  3. Fairthorne, R.A.: Temporal structure in bibliographic classification (1978) 5.87
    5.871439 = sum of:
      5.871439 = weight(author_txt:fairthorne in 1650) [ClassicSimilarity], result of:
        5.871439 = fieldWeight in 1650, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.394302 = idf(docFreq=9, maxDocs=44218)
          0.625 = fieldNorm(doc=1650)
    
  4. Fairthorne, R.A.: Towards information retrieval (1961) 5.87
    5.871439 = sum of:
      5.871439 = weight(author_txt:fairthorne in 1651) [ClassicSimilarity], result of:
        5.871439 = fieldWeight in 1651, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.394302 = idf(docFreq=9, maxDocs=44218)
          0.625 = fieldNorm(doc=1651)
    
  5. Fairthorne, R.A.: Bradford's law and perspective (1980) 5.87
    5.871439 = sum of:
      5.871439 = weight(author_txt:fairthorne in 4992) [ClassicSimilarity], result of:
        5.871439 = fieldWeight in 4992, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.394302 = idf(docFreq=9, maxDocs=44218)
          0.625 = fieldNorm(doc=4992)
    

Similar documents (content)

  1. Rousseau, R.: Robert Fairthorne and the empirical power laws (2005) 1.88
    1.8816203 = sum of:
      1.8816203 = sum of:
        0.06632773 = weight(abstract_txt:description in 4398) [ClassicSimilarity], result of:
          0.06632773 = score(doc=4398,freq=1.0), product of:
            0.14632265 = queryWeight, product of:
              4.835176 = idf(docFreq=954, maxDocs=44218)
              0.030262116 = queryNorm
            0.45329773 = fieldWeight in 4398, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              4.835176 = idf(docFreq=954, maxDocs=44218)
              0.09375 = fieldNorm(doc=4398)
        0.08301433 = weight(abstract_txt:empirical in 4398) [ClassicSimilarity], result of:
          0.08301433 = score(doc=4398,freq=1.0), product of:
            0.16993527 = queryWeight, product of:
              1.0776705 = boost
              5.2107263 = idf(docFreq=655, maxDocs=44218)
              0.030262116 = queryNorm
            0.4885056 = fieldWeight in 4398, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              5.2107263 = idf(docFreq=655, maxDocs=44218)
              0.09375 = fieldNorm(doc=4398)
        0.13791664 = weight(abstract_txt:bibliometric in 4398) [ClassicSimilarity], result of:
          0.13791664 = score(doc=4398,freq=1.0), product of:
            0.2383742 = queryWeight, product of:
              1.276362 = boost
              6.1714344 = idf(docFreq=250, maxDocs=44218)
              0.030262116 = queryNorm
            0.578572 = fieldWeight in 4398, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.1714344 = idf(docFreq=250, maxDocs=44218)
              0.09375 = fieldNorm(doc=4398)
        0.18626627 = weight(abstract_txt:distributions in 4398) [ClassicSimilarity], result of:
          0.18626627 = score(doc=4398,freq=1.0), product of:
            0.29125336 = queryWeight, product of:
              1.4108462 = boost
              6.82169 = idf(docFreq=130, maxDocs=44218)
              0.030262116 = queryNorm
            0.63953346 = fieldWeight in 4398, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.82169 = idf(docFreq=130, maxDocs=44218)
              0.09375 = fieldNorm(doc=4398)
        0.21773331 = weight(abstract_txt:prediction in 4398) [ClassicSimilarity], result of:
          0.21773331 = score(doc=4398,freq=1.0), product of:
            0.32319507 = queryWeight, product of:
              1.4861977 = boost
              7.1860275 = idf(docFreq=90, maxDocs=44218)
              0.030262116 = queryNorm
            0.6736901 = fieldWeight in 4398, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.1860275 = idf(docFreq=90, maxDocs=44218)
              0.09375 = fieldNorm(doc=4398)
        0.31337315 = weight(abstract_txt:bradford in 4398) [ClassicSimilarity], result of:
          0.31337315 = score(doc=4398,freq=1.0), product of:
            0.41199255 = queryWeight, product of:
              1.6779882 = boost
              8.113368 = idf(docFreq=35, maxDocs=44218)
              0.030262116 = queryNorm
            0.7606282 = fieldWeight in 4398, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.113368 = idf(docFreq=35, maxDocs=44218)
              0.09375 = fieldNorm(doc=4398)
        0.37397173 = weight(abstract_txt:zipf in 4398) [ClassicSimilarity], result of:
          0.37397173 = score(doc=4398,freq=1.0), product of:
            0.4635259 = queryWeight, product of:
              1.779841 = boost
              8.6058445 = idf(docFreq=21, maxDocs=44218)
              0.030262116 = queryNorm
            0.8067979 = fieldWeight in 4398, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.6058445 = idf(docFreq=21, maxDocs=44218)
              0.09375 = fieldNorm(doc=4398)
        0.5030172 = weight(abstract_txt:hyperbolic in 4398) [ClassicSimilarity], result of:
          0.5030172 = score(doc=4398,freq=1.0), product of:
            0.5648113 = queryWeight, product of:
              1.9646983 = boost
              9.499662 = idf(docFreq=8, maxDocs=44218)
              0.030262116 = queryNorm
            0.89059335 = fieldWeight in 4398, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.499662 = idf(docFreq=8, maxDocs=44218)
              0.09375 = fieldNorm(doc=4398)
    
  2. Fairthorne, R.A.: Empirical hyperbolic distributions (Bradford-Zipf-Mandelbrot) for bibliometric description and prediction (2005) 1.08
    1.0801113 = sum of:
      1.0801113 = product of:
        1.728178 = sum of:
          0.08301433 = weight(abstract_txt:empirical in 3776) [ClassicSimilarity], result of:
            0.08301433 = score(doc=3776,freq=1.0), product of:
              0.16993527 = queryWeight, product of:
                1.0776705 = boost
                5.2107263 = idf(docFreq=655, maxDocs=44218)
                0.030262116 = queryNorm
              0.4885056 = fieldWeight in 3776, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2107263 = idf(docFreq=655, maxDocs=44218)
                0.09375 = fieldNorm(doc=3776)
          0.13791664 = weight(abstract_txt:bibliometric in 3776) [ClassicSimilarity], result of:
            0.13791664 = score(doc=3776,freq=1.0), product of:
              0.2383742 = queryWeight, product of:
                1.276362 = boost
                6.1714344 = idf(docFreq=250, maxDocs=44218)
                0.030262116 = queryNorm
              0.578572 = fieldWeight in 3776, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.1714344 = idf(docFreq=250, maxDocs=44218)
                0.09375 = fieldNorm(doc=3776)
          0.32262263 = weight(abstract_txt:distributions in 3776) [ClassicSimilarity], result of:
            0.32262263 = score(doc=3776,freq=3.0), product of:
              0.29125336 = queryWeight, product of:
                1.4108462 = boost
                6.82169 = idf(docFreq=130, maxDocs=44218)
                0.030262116 = queryNorm
              1.1077044 = fieldWeight in 3776, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.82169 = idf(docFreq=130, maxDocs=44218)
                0.09375 = fieldNorm(doc=3776)
          0.31337315 = weight(abstract_txt:bradford in 3776) [ClassicSimilarity], result of:
            0.31337315 = score(doc=3776,freq=1.0), product of:
              0.41199255 = queryWeight, product of:
                1.6779882 = boost
                8.113368 = idf(docFreq=35, maxDocs=44218)
                0.030262116 = queryNorm
              0.7606282 = fieldWeight in 3776, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.113368 = idf(docFreq=35, maxDocs=44218)
                0.09375 = fieldNorm(doc=3776)
          0.87125134 = weight(abstract_txt:hyperbolic in 3776) [ClassicSimilarity], result of:
            0.87125134 = score(doc=3776,freq=3.0), product of:
              0.5648113 = queryWeight, product of:
                1.9646983 = boost
                9.499662 = idf(docFreq=8, maxDocs=44218)
                0.030262116 = queryNorm
              1.542553 = fieldWeight in 3776, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                9.499662 = idf(docFreq=8, maxDocs=44218)
                0.09375 = fieldNorm(doc=3776)
        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
    0.38903064 = sum of:
      0.38903064 = product of:
        1.037415 = sum of:
          0.096850045 = weight(abstract_txt:empirical in 324) [ClassicSimilarity], result of:
            0.096850045 = score(doc=324,freq=1.0), product of:
              0.16993527 = queryWeight, product of:
                1.0776705 = boost
                5.2107263 = idf(docFreq=655, maxDocs=44218)
                0.030262116 = queryNorm
              0.56992316 = fieldWeight in 324, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2107263 = idf(docFreq=655, maxDocs=44218)
                0.109375 = fieldNorm(doc=324)
          0.30732366 = weight(abstract_txt:distributions in 324) [ClassicSimilarity], result of:
            0.30732366 = score(doc=324,freq=2.0), product of:
              0.29125336 = queryWeight, product of:
                1.4108462 = boost
                6.82169 = idf(docFreq=130, maxDocs=44218)
                0.030262116 = queryNorm
              1.0551764 = fieldWeight in 324, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.82169 = idf(docFreq=130, maxDocs=44218)
                0.109375 = fieldNorm(doc=324)
          0.6332413 = weight(abstract_txt:bradford in 324) [ClassicSimilarity], result of:
            0.6332413 = score(doc=324,freq=3.0), product of:
              0.41199255 = queryWeight, product of:
                1.6779882 = boost
                8.113368 = idf(docFreq=35, maxDocs=44218)
                0.030262116 = queryNorm
              1.5370213 = fieldWeight in 324, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                8.113368 = idf(docFreq=35, maxDocs=44218)
                0.109375 = fieldNorm(doc=324)
        0.375 = coord(3/8)
    
  4. Heine, M.M.: Bradford ranking conventions and their application to a growing literature (1998) 0.39
    0.38868302 = sum of:
      0.38868302 = product of:
        1.036488 = sum of:
          0.09783332 = weight(abstract_txt:empirical in 1069) [ClassicSimilarity], result of:
            0.09783332 = score(doc=1069,freq=2.0), product of:
              0.16993527 = queryWeight, product of:
                1.0776705 = boost
                5.2107263 = idf(docFreq=655, maxDocs=44218)
                0.030262116 = queryNorm
              0.57570934 = fieldWeight in 1069, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.2107263 = idf(docFreq=655, maxDocs=44218)
                0.078125 = fieldNorm(doc=1069)
          0.1552219 = weight(abstract_txt:distributions in 1069) [ClassicSimilarity], result of:
            0.1552219 = score(doc=1069,freq=1.0), product of:
              0.29125336 = queryWeight, product of:
                1.4108462 = boost
                6.82169 = idf(docFreq=130, maxDocs=44218)
                0.030262116 = queryNorm
              0.53294456 = fieldWeight in 1069, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.82169 = idf(docFreq=130, maxDocs=44218)
                0.078125 = fieldNorm(doc=1069)
          0.7834329 = weight(abstract_txt:bradford in 1069) [ClassicSimilarity], result of:
            0.7834329 = score(doc=1069,freq=9.0), product of:
              0.41199255 = queryWeight, product of:
                1.6779882 = boost
                8.113368 = idf(docFreq=35, maxDocs=44218)
                0.030262116 = queryNorm
              1.9015706 = fieldWeight in 1069, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                8.113368 = idf(docFreq=35, maxDocs=44218)
                0.078125 = fieldNorm(doc=1069)
        0.375 = coord(3/8)
    
  5. Richmond, P.A.: Classification from PRECIS : some possibilities (1976) 0.37
    0.37163517 = sum of:
      0.37163517 = product of:
        0.9910271 = sum of:
          0.096850045 = weight(abstract_txt:empirical in 1200) [ClassicSimilarity], result of:
            0.096850045 = score(doc=1200,freq=1.0), product of:
              0.16993527 = queryWeight, product of:
                1.0776705 = boost
                5.2107263 = idf(docFreq=655, maxDocs=44218)
                0.030262116 = queryNorm
              0.56992316 = fieldWeight in 1200, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2107263 = idf(docFreq=655, maxDocs=44218)
                0.109375 = fieldNorm(doc=1200)
          0.30732366 = weight(abstract_txt:distributions in 1200) [ClassicSimilarity], result of:
            0.30732366 = score(doc=1200,freq=2.0), product of:
              0.29125336 = queryWeight, product of:
                1.4108462 = boost
                6.82169 = idf(docFreq=130, maxDocs=44218)
                0.030262116 = queryNorm
              1.0551764 = fieldWeight in 1200, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.82169 = idf(docFreq=130, maxDocs=44218)
                0.109375 = fieldNorm(doc=1200)
          0.5868534 = weight(abstract_txt:hyperbolic in 1200) [ClassicSimilarity], result of:
            0.5868534 = score(doc=1200,freq=1.0), product of:
              0.5648113 = queryWeight, product of:
                1.9646983 = boost
                9.499662 = idf(docFreq=8, maxDocs=44218)
                0.030262116 = queryNorm
              1.0390255 = fieldWeight in 1200, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.499662 = idf(docFreq=8, maxDocs=44218)
                0.109375 = fieldNorm(doc=1200)
        0.375 = coord(3/8)