Document (#19797)

Author
Oluic-Vukovic, V.
Title
Simon's generating mechanism : consequences and their correspondence to empirical facts
Source
Journal of the American Society for Information Science. 49(1998) no.10, S.867-880
Year
1998
Abstract
By considering hypothetically the Bradford distribution, as a dynamic system developing in time on principl formally equivalent to that proposed by Siman, it was shown that though the Simon generating mechanism gives rise to certain qualitative features ascribes to data, the resulting distribution function, derived as a steady-state solution of the proposed stochastic process, is too restricted to cope with the variation produced in time. The empirical evidence, combined with the results of goodness-of-fit test, strongly support this fact, showing explicitly that the changes in the shape of the distribution that appear in the course of time, particularly the changes in the low producing tail, reduce excessively the scope of the model marking the limits of its applicability
Object
Bradford-Gesetz

Similar documents (content)

  1. Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006) 0.22
    0.21952538 = sum of:
      0.21952538 = product of:
        0.78401923 = sum of:
          0.14329106 = weight(abstract_txt:stochastic in 994) [ClassicSimilarity], result of:
            0.14329106 = score(doc=994,freq=1.0), product of:
              0.21633911 = queryWeight, product of:
                1.2210354 = boost
                8.478011 = idf(docFreq=24, maxDocs=44218)
                0.020898389 = queryNorm
              0.66234463 = fieldWeight in 994, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.478011 = idf(docFreq=24, maxDocs=44218)
                0.078125 = fieldNorm(doc=994)
          0.0460549 = weight(abstract_txt:proposed in 994) [ClassicSimilarity], result of:
            0.0460549 = score(doc=994,freq=1.0), product of:
              0.12789382 = queryWeight, product of:
                1.3277017 = boost
                4.6093135 = idf(docFreq=1196, maxDocs=44218)
                0.020898389 = queryNorm
              0.36010262 = fieldWeight in 994, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6093135 = idf(docFreq=1196, maxDocs=44218)
                0.078125 = fieldNorm(doc=994)
          0.021672757 = weight(abstract_txt:that in 994) [ClassicSimilarity], result of:
            0.021672757 = score(doc=994,freq=3.0), product of:
              0.0675945 = queryWeight, product of:
                1.3650433 = boost
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.020898389 = queryNorm
              0.320629 = fieldWeight in 994, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.078125 = fieldNorm(doc=994)
          0.07121863 = weight(abstract_txt:time in 994) [ClassicSimilarity], result of:
            0.07121863 = score(doc=994,freq=2.0), product of:
              0.15538718 = queryWeight, product of:
                1.7923753 = boost
                4.148331 = idf(docFreq=1897, maxDocs=44218)
                0.020898389 = queryNorm
              0.45833018 = fieldWeight in 994, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.148331 = idf(docFreq=1897, maxDocs=44218)
                0.078125 = fieldNorm(doc=994)
          0.11854892 = weight(abstract_txt:mechanism in 994) [ClassicSimilarity], result of:
            0.11854892 = score(doc=994,freq=1.0), product of:
              0.2402135 = queryWeight, product of:
                1.8195938 = boost
                6.31699 = idf(docFreq=216, maxDocs=44218)
                0.020898389 = queryNorm
              0.49351484 = fieldWeight in 994, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.31699 = idf(docFreq=216, maxDocs=44218)
                0.078125 = fieldNorm(doc=994)
          0.20835349 = weight(abstract_txt:generating in 994) [ClassicSimilarity], result of:
            0.20835349 = score(doc=994,freq=2.0), product of:
              0.2776661 = queryWeight, product of:
                1.9563076 = boost
                6.7916126 = idf(docFreq=134, maxDocs=44218)
                0.020898389 = queryNorm
              0.75037426 = fieldWeight in 994, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.7916126 = idf(docFreq=134, maxDocs=44218)
                0.078125 = fieldNorm(doc=994)
          0.17487942 = weight(abstract_txt:distribution in 994) [ClassicSimilarity], result of:
            0.17487942 = score(doc=994,freq=2.0), product of:
              0.28282115 = queryWeight, product of:
                2.4181168 = boost
                5.596568 = idf(docFreq=445, maxDocs=44218)
                0.020898389 = queryNorm
              0.61833924 = fieldWeight in 994, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.596568 = idf(docFreq=445, maxDocs=44218)
                0.078125 = fieldNorm(doc=994)
        0.28 = coord(7/25)
    
  2. Wagner-Döbler, R.: Time dependencies of Bradford distributions : structures of journal output in 20th century logic and 19the century mathematics (1997) 0.14
    0.13905658 = sum of:
      0.13905658 = product of:
        0.6952829 = sum of:
          0.30452946 = weight(abstract_txt:bradford in 324) [ClassicSimilarity], result of:
            0.30452946 = score(doc=324,freq=3.0), product of:
              0.19812962 = queryWeight, product of:
                1.1685181 = boost
                8.113368 = idf(docFreq=35, maxDocs=44218)
                0.020898389 = 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)
          0.024774024 = weight(abstract_txt:that in 324) [ClassicSimilarity], result of:
            0.024774024 = score(doc=324,freq=2.0), product of:
              0.0675945 = queryWeight, product of:
                1.3650433 = boost
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.020898389 = queryNorm
              0.36650947 = fieldWeight in 324, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.109375 = fieldNorm(doc=324)
          0.0931515 = weight(abstract_txt:empirical in 324) [ClassicSimilarity], result of:
            0.0931515 = score(doc=324,freq=1.0), product of:
              0.16344573 = queryWeight, product of:
                1.5009372 = boost
                5.2107263 = idf(docFreq=655, maxDocs=44218)
                0.020898389 = 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)
          0.09970608 = weight(abstract_txt:time in 324) [ClassicSimilarity], result of:
            0.09970608 = score(doc=324,freq=2.0), product of:
              0.15538718 = queryWeight, product of:
                1.7923753 = boost
                4.148331 = idf(docFreq=1897, maxDocs=44218)
                0.020898389 = queryNorm
              0.64166224 = fieldWeight in 324, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.148331 = idf(docFreq=1897, maxDocs=44218)
                0.109375 = fieldNorm(doc=324)
          0.1731218 = weight(abstract_txt:distribution in 324) [ClassicSimilarity], result of:
            0.1731218 = score(doc=324,freq=1.0), product of:
              0.28282115 = queryWeight, product of:
                2.4181168 = boost
                5.596568 = idf(docFreq=445, maxDocs=44218)
                0.020898389 = queryNorm
              0.6121246 = fieldWeight in 324, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.596568 = idf(docFreq=445, maxDocs=44218)
                0.109375 = fieldNorm(doc=324)
        0.2 = coord(5/25)
    
  3. Dominich, S.; Skrop, A.: PageRank and interaction information retrieval (2005) 0.14
    0.13724561 = sum of:
      0.13724561 = product of:
        0.57185674 = sum of:
          0.106915474 = weight(abstract_txt:formally in 3268) [ClassicSimilarity], result of:
            0.106915474 = score(doc=3268,freq=1.0), product of:
              0.17797107 = queryWeight, product of:
                1.1074789 = boost
                7.689554 = idf(docFreq=54, maxDocs=44218)
                0.020898389 = queryNorm
              0.6007464 = fieldWeight in 3268, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.689554 = idf(docFreq=54, maxDocs=44218)
                0.078125 = fieldNorm(doc=3268)
          0.1394241 = weight(abstract_txt:steady in 3268) [ClassicSimilarity], result of:
            0.1394241 = score(doc=3268,freq=1.0), product of:
              0.21242921 = queryWeight, product of:
                1.2099512 = boost
                8.401051 = idf(docFreq=26, maxDocs=44218)
                0.020898389 = queryNorm
              0.6563321 = fieldWeight in 3268, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.401051 = idf(docFreq=26, maxDocs=44218)
                0.078125 = fieldNorm(doc=3268)
          0.14329106 = weight(abstract_txt:stochastic in 3268) [ClassicSimilarity], result of:
            0.14329106 = score(doc=3268,freq=1.0), product of:
              0.21633911 = queryWeight, product of:
                1.2210354 = boost
                8.478011 = idf(docFreq=24, maxDocs=44218)
                0.020898389 = queryNorm
              0.66234463 = fieldWeight in 3268, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.478011 = idf(docFreq=24, maxDocs=44218)
                0.078125 = fieldNorm(doc=3268)
          0.0460549 = weight(abstract_txt:proposed in 3268) [ClassicSimilarity], result of:
            0.0460549 = score(doc=3268,freq=1.0), product of:
              0.12789382 = queryWeight, product of:
                1.3277017 = boost
                4.6093135 = idf(docFreq=1196, maxDocs=44218)
                0.020898389 = queryNorm
              0.36010262 = fieldWeight in 3268, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6093135 = idf(docFreq=1196, maxDocs=44218)
                0.078125 = fieldNorm(doc=3268)
          0.012512772 = weight(abstract_txt:that in 3268) [ClassicSimilarity], result of:
            0.012512772 = score(doc=3268,freq=1.0), product of:
              0.0675945 = queryWeight, product of:
                1.3650433 = boost
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.020898389 = queryNorm
              0.18511525 = fieldWeight in 3268, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.078125 = fieldNorm(doc=3268)
          0.123658426 = weight(abstract_txt:distribution in 3268) [ClassicSimilarity], result of:
            0.123658426 = score(doc=3268,freq=1.0), product of:
              0.28282115 = queryWeight, product of:
                2.4181168 = boost
                5.596568 = idf(docFreq=445, maxDocs=44218)
                0.020898389 = queryNorm
              0.4372319 = fieldWeight in 3268, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.596568 = idf(docFreq=445, maxDocs=44218)
                0.078125 = fieldNorm(doc=3268)
        0.24 = coord(6/25)
    
  4. Peters, I.; Stock, W.G.: Power tags in information retrieval (2010) 0.13
    0.1330552 = sum of:
      0.1330552 = product of:
        0.5543966 = sum of:
          0.11153928 = weight(abstract_txt:simon in 865) [ClassicSimilarity], result of:
            0.11153928 = score(doc=865,freq=1.0), product of:
              0.21242921 = queryWeight, product of:
                1.2099512 = boost
                8.401051 = idf(docFreq=26, maxDocs=44218)
                0.020898389 = queryNorm
              0.52506566 = fieldWeight in 865, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.401051 = idf(docFreq=26, maxDocs=44218)
                0.0625 = fieldNorm(doc=865)
          0.121851675 = weight(abstract_txt:tail in 865) [ClassicSimilarity], result of:
            0.121851675 = score(doc=865,freq=1.0), product of:
              0.22532879 = queryWeight, product of:
                1.2461464 = boost
                8.652365 = idf(docFreq=20, maxDocs=44218)
                0.020898389 = queryNorm
              0.5407728 = fieldWeight in 865, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.652365 = idf(docFreq=20, maxDocs=44218)
                0.0625 = fieldNorm(doc=865)
          0.010010217 = weight(abstract_txt:that in 865) [ClassicSimilarity], result of:
            0.010010217 = score(doc=865,freq=1.0), product of:
              0.0675945 = queryWeight, product of:
                1.3650433 = boost
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.020898389 = queryNorm
              0.1480922 = fieldWeight in 865, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.3694751 = idf(docFreq=11241, maxDocs=44218)
                0.0625 = fieldNorm(doc=865)
          0.053229433 = weight(abstract_txt:empirical in 865) [ClassicSimilarity], result of:
            0.053229433 = score(doc=865,freq=1.0), product of:
              0.16344573 = queryWeight, product of:
                1.5009372 = boost
                5.2107263 = idf(docFreq=655, maxDocs=44218)
                0.020898389 = queryNorm
              0.3256704 = fieldWeight in 865, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2107263 = idf(docFreq=655, maxDocs=44218)
                0.0625 = fieldNorm(doc=865)
          0.11786253 = weight(abstract_txt:generating in 865) [ClassicSimilarity], result of:
            0.11786253 = score(doc=865,freq=1.0), product of:
              0.2776661 = queryWeight, product of:
                1.9563076 = boost
                6.7916126 = idf(docFreq=134, maxDocs=44218)
                0.020898389 = queryNorm
              0.4244758 = fieldWeight in 865, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.7916126 = idf(docFreq=134, maxDocs=44218)
                0.0625 = fieldNorm(doc=865)
          0.13990353 = weight(abstract_txt:distribution in 865) [ClassicSimilarity], result of:
            0.13990353 = score(doc=865,freq=2.0), product of:
              0.28282115 = queryWeight, product of:
                2.4181168 = boost
                5.596568 = idf(docFreq=445, maxDocs=44218)
                0.020898389 = queryNorm
              0.4946714 = fieldWeight in 865, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.596568 = idf(docFreq=445, maxDocs=44218)
                0.0625 = fieldNorm(doc=865)
        0.24 = coord(6/25)
    
  5. Chen, Y.-S.; Chong, P.P.; Tong, M.Y.: Dynamic behavior of Bradford's law (1995) 0.13
    0.12699845 = sum of:
      0.12699845 = product of:
        0.79374033 = sum of:
          0.28416827 = weight(abstract_txt:bradford in 2150) [ClassicSimilarity], result of:
            0.28416827 = score(doc=2150,freq=2.0), product of:
              0.19812962 = queryWeight, product of:
                1.1685181 = boost
                8.113368 = idf(docFreq=35, maxDocs=44218)
                0.020898389 = queryNorm
              1.4342544 = fieldWeight in 2150, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.113368 = idf(docFreq=35, maxDocs=44218)
                0.125 = fieldNorm(doc=2150)
          0.32253852 = weight(abstract_txt:simon's in 2150) [ClassicSimilarity], result of:
            0.32253852 = score(doc=2150,freq=1.0), product of:
              0.27162105 = queryWeight, product of:
                1.3681774 = boost
                9.499662 = idf(docFreq=8, maxDocs=44218)
                0.020898389 = queryNorm
              1.1874578 = fieldWeight in 2150, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.499662 = idf(docFreq=8, maxDocs=44218)
                0.125 = fieldNorm(doc=2150)
          0.106458865 = weight(abstract_txt:empirical in 2150) [ClassicSimilarity], result of:
            0.106458865 = score(doc=2150,freq=1.0), product of:
              0.16344573 = queryWeight, product of:
                1.5009372 = boost
                5.2107263 = idf(docFreq=655, maxDocs=44218)
                0.020898389 = queryNorm
              0.6513408 = fieldWeight in 2150, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2107263 = idf(docFreq=655, maxDocs=44218)
                0.125 = fieldNorm(doc=2150)
          0.080574684 = weight(abstract_txt:time in 2150) [ClassicSimilarity], result of:
            0.080574684 = score(doc=2150,freq=1.0), product of:
              0.15538718 = queryWeight, product of:
                1.7923753 = boost
                4.148331 = idf(docFreq=1897, maxDocs=44218)
                0.020898389 = queryNorm
              0.5185414 = fieldWeight in 2150, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.148331 = idf(docFreq=1897, maxDocs=44218)
                0.125 = fieldNorm(doc=2150)
        0.16 = coord(4/25)