Search (3 results, page 1 of 1)

  • × author_ss:"Fairthorne, R.A."
  • × theme_ss:"Informetrie"
  1. Fairthorne, R.A.: Empirical hyperbolic distributions (Bradford-Zipf-Mandelbrot) for bibliometric description and prediction (2005) 0.00
    0.0020506454 = product of:
      0.004101291 = sum of:
        0.004101291 = product of:
          0.008202582 = sum of:
            0.008202582 = weight(_text_:a in 3776) [ClassicSimilarity], result of:
              0.008202582 = score(doc=3776,freq=6.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.1544581 = fieldWeight in 3776, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3776)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Purpose - Aims to build on the work of Buckland and Hindle regarding statistical distribution as applied to the field of bibliometrics, particularly the use of empirical laws. Design/methodology/approach - Gives examples of hyperbolic distributions that have a bearing on the bibliometric application, and discusses the characteristics of hyperbolic distributions and the Bradford distribution. Findings - Hyperbolic distributions are the inevitable result of combinatorial necessity and a tendency to short-term rational behaviour. Originality/value - Supports Bradford's conclusion from his law, i.e. that to know about one's speciality, one must go outside it. Wiederabdruck eines Artikels aus Journal of documentation 25(1969) no.4, S.319-343.
    Type
    a
  2. Fairthorne, R.A.: Bradford's law and perspective (1980) 0.00
    0.0020296127 = product of:
      0.0040592253 = sum of:
        0.0040592253 = product of:
          0.008118451 = sum of:
            0.008118451 = weight(_text_:a in 4992) [ClassicSimilarity], result of:
              0.008118451 = score(doc=4992,freq=2.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.15287387 = fieldWeight in 4992, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.09375 = fieldNorm(doc=4992)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  3. Fairthorne, R.A.: Empirical hyperbolic distributions (Bradford-Zipf-Mandelbrot) for bibliometric description and prediction (1969) 0.00
    0.0020296127 = product of:
      0.0040592253 = sum of:
        0.0040592253 = product of:
          0.008118451 = sum of:
            0.008118451 = weight(_text_:a in 4329) [ClassicSimilarity], result of:
              0.008118451 = score(doc=4329,freq=2.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.15287387 = fieldWeight in 4329, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.09375 = fieldNorm(doc=4329)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a