Document (#25451)

Author
Egghe, L.
Title
Sampling and concentration values of incomplete bibliographies
Source
Journal of the American Society for Information Science and technology. 53(2002) no.4, S.271-281
Year
2002
Abstract
This article studies concentration aspects of bibliographies. More, in particular, we study the impact of incompleteness of such a bibliography on its concentration values (i.e., its degree of inequality of production of its sources). Incompleteness is modeled by sampling in the complete bibliography. The model is general enough to comprise truncation of a bibliography as well as a systematic sample on sources or items. In all cases we prove that the sampled bibliography (or incomplete one) has a higher concentration value than the complete one. These models, hence, shed some light on the measurement of production inequality in incomplete bibliographies.
Theme
Informetrie
Bibliographie

Similar documents (author)

  1. Egghe, L.: Little science, big science and beyond (1994) 4.74
    4.744121 = sum of:
      4.744121 = weight(author_txt:egghe in 6882) [ClassicSimilarity], result of:
        4.744121 = fieldWeight in 6882, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.590594 = idf(docFreq=60, maxDocs=44421)
          0.625 = fieldNorm(doc=6882)
    
  2. Egghe, L.: Expansion of the field of informetrics : the second special issue (2006) 4.74
    4.744121 = sum of:
      4.744121 = weight(author_txt:egghe in 7118) [ClassicSimilarity], result of:
        4.744121 = fieldWeight in 7118, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.590594 = idf(docFreq=60, maxDocs=44421)
          0.625 = fieldNorm(doc=7118)
    
  3. Egghe, L.: Expansion of the field of informetrics : origins and consequences (2005) 4.74
    4.744121 = sum of:
      4.744121 = weight(author_txt:egghe in 1978) [ClassicSimilarity], result of:
        4.744121 = fieldWeight in 1978, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.590594 = idf(docFreq=60, maxDocs=44421)
          0.625 = fieldNorm(doc=1978)
    
  4. Egghe, L.: ¬The amount of actions needed for shelving and reshelving (1996) 4.74
    4.744121 = sum of:
      4.744121 = weight(author_txt:egghe in 4462) [ClassicSimilarity], result of:
        4.744121 = fieldWeight in 4462, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.590594 = idf(docFreq=60, maxDocs=44421)
          0.625 = fieldNorm(doc=4462)
    
  5. Egghe, L.: Special features of the author - publication relationship and a new explanation of Lotka's law based on convolution theory (1994) 4.74
    4.744121 = sum of:
      4.744121 = weight(author_txt:egghe in 5136) [ClassicSimilarity], result of:
        4.744121 = fieldWeight in 5136, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.590594 = idf(docFreq=60, maxDocs=44421)
          0.625 = fieldNorm(doc=5136)
    

Similar documents (content)

  1. Riesthuis, G.J.A.; Schmitz-Esser, W.: Bibliography of 10 years International Society for Knowledge Organization (1999) 0.14
    0.14105485 = sum of:
      0.14105485 = product of:
        0.58772856 = sum of:
          0.019081362 = weight(abstract_txt:items in 402) [ClassicSimilarity], result of:
            0.019081362 = score(doc=402,freq=1.0), product of:
              0.0625413 = queryWeight, product of:
                5.5789747 = idf(docFreq=455, maxDocs=44421)
                0.011210178 = queryNorm
              0.30510017 = fieldWeight in 402, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5789747 = idf(docFreq=455, maxDocs=44421)
                0.0546875 = fieldNorm(doc=402)
          0.019837705 = weight(abstract_txt:cases in 402) [ClassicSimilarity], result of:
            0.019837705 = score(doc=402,freq=1.0), product of:
              0.064183235 = queryWeight, product of:
                1.0130417 = boost
                5.6517344 = idf(docFreq=423, maxDocs=44421)
                0.011210178 = queryNorm
              0.30907923 = fieldWeight in 402, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6517344 = idf(docFreq=423, maxDocs=44421)
                0.0546875 = fieldNorm(doc=402)
          0.02344989 = weight(abstract_txt:sources in 402) [ClassicSimilarity], result of:
            0.02344989 = score(doc=402,freq=1.0), product of:
              0.09040613 = queryWeight, product of:
                1.7003193 = boost
                4.743019 = idf(docFreq=1051, maxDocs=44421)
                0.011210178 = queryNorm
              0.25938386 = fieldWeight in 402, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.743019 = idf(docFreq=1051, maxDocs=44421)
                0.0546875 = fieldNorm(doc=402)
          0.06361689 = weight(abstract_txt:complete in 402) [ClassicSimilarity], result of:
            0.06361689 = score(doc=402,freq=2.0), product of:
              0.13957542 = queryWeight, product of:
                2.1126912 = boost
                5.8933253 = idf(docFreq=332, maxDocs=44421)
                0.011210178 = queryNorm
              0.4557886 = fieldWeight in 402, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.8933253 = idf(docFreq=332, maxDocs=44421)
                0.0546875 = fieldNorm(doc=402)
          0.14981218 = weight(abstract_txt:bibliographies in 402) [ClassicSimilarity], result of:
            0.14981218 = score(doc=402,freq=2.0), product of:
              0.28280634 = queryWeight, product of:
                3.6831698 = boost
                6.849437 = idf(docFreq=127, maxDocs=44421)
                0.011210178 = queryNorm
              0.52973413 = fieldWeight in 402, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.849437 = idf(docFreq=127, maxDocs=44421)
                0.0546875 = fieldNorm(doc=402)
          0.31193054 = weight(abstract_txt:bibliography in 402) [ClassicSimilarity], result of:
            0.31193054 = score(doc=402,freq=11.0), product of:
              0.28753343 = queryWeight, product of:
                4.288355 = boost
                5.981156 = idf(docFreq=304, maxDocs=44421)
                0.011210178 = queryNorm
              1.0848496 = fieldWeight in 402, product of:
                3.3166249 = tf(freq=11.0), with freq of:
                  11.0 = termFreq=11.0
                5.981156 = idf(docFreq=304, maxDocs=44421)
                0.0546875 = fieldNorm(doc=402)
        0.24 = coord(6/25)
    
  2. Egghe, L.: Zipfian and Lotkaian continuous concentration theory (2005) 0.12
    0.12255744 = sum of:
      0.12255744 = product of:
        1.021312 = sum of:
          0.05562919 = weight(abstract_txt:prove in 4678) [ClassicSimilarity], result of:
            0.05562919 = score(doc=4678,freq=1.0), product of:
              0.10062236 = queryWeight, product of:
                1.2684221 = boost
                7.0764947 = idf(docFreq=101, maxDocs=44421)
                0.011210178 = queryNorm
              0.55285114 = fieldWeight in 4678, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.0764947 = idf(docFreq=101, maxDocs=44421)
                0.078125 = fieldNorm(doc=4678)
          0.18174627 = weight(abstract_txt:inequality in 4678) [ClassicSimilarity], result of:
            0.18174627 = score(doc=4678,freq=1.0), product of:
              0.27913418 = queryWeight, product of:
                2.9877074 = boost
                8.334172 = idf(docFreq=28, maxDocs=44421)
                0.011210178 = queryNorm
              0.6511072 = fieldWeight in 4678, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.334172 = idf(docFreq=28, maxDocs=44421)
                0.078125 = fieldNorm(doc=4678)
          0.78393656 = weight(abstract_txt:concentration in 4678) [ClassicSimilarity], result of:
            0.78393656 = score(doc=4678,freq=6.0), product of:
              0.51284117 = queryWeight, product of:
                5.7271423 = boost
                7.9878955 = idf(docFreq=40, maxDocs=44421)
                0.011210178 = queryNorm
              1.5286148 = fieldWeight in 4678, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                7.9878955 = idf(docFreq=40, maxDocs=44421)
                0.078125 = fieldNorm(doc=4678)
        0.12 = coord(3/25)
    
  3. White, F.: EndNote Plus: a bibliography maker for the researcher (1993) 0.07
    0.07223572 = sum of:
      0.07223572 = product of:
        0.60196435 = sum of:
          0.04689978 = weight(abstract_txt:sources in 6948) [ClassicSimilarity], result of:
            0.04689978 = score(doc=6948,freq=1.0), product of:
              0.09040613 = queryWeight, product of:
                1.7003193 = boost
                4.743019 = idf(docFreq=1051, maxDocs=44421)
                0.011210178 = queryNorm
              0.5187677 = fieldWeight in 6948, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.743019 = idf(docFreq=1051, maxDocs=44421)
                0.109375 = fieldNorm(doc=6948)
          0.3669634 = weight(abstract_txt:bibliographies in 6948) [ClassicSimilarity], result of:
            0.3669634 = score(doc=6948,freq=3.0), product of:
              0.28280634 = queryWeight, product of:
                3.6831698 = boost
                6.849437 = idf(docFreq=127, maxDocs=44421)
                0.011210178 = queryNorm
              1.2975783 = fieldWeight in 6948, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.849437 = idf(docFreq=127, maxDocs=44421)
                0.109375 = fieldNorm(doc=6948)
          0.18810119 = weight(abstract_txt:bibliography in 6948) [ClassicSimilarity], result of:
            0.18810119 = score(doc=6948,freq=1.0), product of:
              0.28753343 = queryWeight, product of:
                4.288355 = boost
                5.981156 = idf(docFreq=304, maxDocs=44421)
                0.011210178 = queryNorm
              0.65418893 = fieldWeight in 6948, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.981156 = idf(docFreq=304, maxDocs=44421)
                0.109375 = fieldNorm(doc=6948)
        0.12 = coord(3/25)
    
  4. Egghe, L.: Untangling Herdan's law and Heaps' law : mathematical and informetric arguments (2007) 0.07
    0.07102468 = sum of:
      0.07102468 = product of:
        0.29593617 = sum of:
          0.0377713 = weight(abstract_txt:items in 1271) [ClassicSimilarity], result of:
            0.0377713 = score(doc=1271,freq=3.0), product of:
              0.0625413 = queryWeight, product of:
                5.5789747 = idf(docFreq=455, maxDocs=44421)
                0.011210178 = queryNorm
              0.60394174 = fieldWeight in 1271, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.5789747 = idf(docFreq=455, maxDocs=44421)
                0.0625 = fieldNorm(doc=1271)
          0.022671662 = weight(abstract_txt:cases in 1271) [ClassicSimilarity], result of:
            0.022671662 = score(doc=1271,freq=1.0), product of:
              0.064183235 = queryWeight, product of:
                1.0130417 = boost
                5.6517344 = idf(docFreq=423, maxDocs=44421)
                0.011210178 = queryNorm
              0.3532334 = fieldWeight in 1271, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6517344 = idf(docFreq=423, maxDocs=44421)
                0.0625 = fieldNorm(doc=1271)
          0.03480309 = weight(abstract_txt:hence in 1271) [ClassicSimilarity], result of:
            0.03480309 = score(doc=1271,freq=1.0), product of:
              0.08541049 = queryWeight, product of:
                1.1686169 = boost
                6.519684 = idf(docFreq=177, maxDocs=44421)
                0.011210178 = queryNorm
              0.40748024 = fieldWeight in 1271, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.519684 = idf(docFreq=177, maxDocs=44421)
                0.0625 = fieldNorm(doc=1271)
          0.037900742 = weight(abstract_txt:sources in 1271) [ClassicSimilarity], result of:
            0.037900742 = score(doc=1271,freq=2.0), product of:
              0.09040613 = queryWeight, product of:
                1.7003193 = boost
                4.743019 = idf(docFreq=1051, maxDocs=44421)
                0.011210178 = queryNorm
              0.4192276 = fieldWeight in 1271, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.743019 = idf(docFreq=1051, maxDocs=44421)
                0.0625 = fieldNorm(doc=1271)
          0.049185622 = weight(abstract_txt:values in 1271) [ClassicSimilarity], result of:
            0.049185622 = score(doc=1271,freq=1.0), product of:
              0.1355194 = queryWeight, product of:
                2.0817678 = boost
                5.807065 = idf(docFreq=362, maxDocs=44421)
                0.011210178 = queryNorm
              0.36294156 = fieldWeight in 1271, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.807065 = idf(docFreq=362, maxDocs=44421)
                0.0625 = fieldNorm(doc=1271)
          0.11360376 = weight(abstract_txt:sampling in 1271) [ClassicSimilarity], result of:
            0.11360376 = score(doc=1271,freq=1.0), product of:
              0.23679426 = queryWeight, product of:
                2.7518017 = boost
                7.676116 = idf(docFreq=55, maxDocs=44421)
                0.011210178 = queryNorm
              0.47975725 = fieldWeight in 1271, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.676116 = idf(docFreq=55, maxDocs=44421)
                0.0625 = fieldNorm(doc=1271)
        0.24 = coord(6/25)
    
  5. Burrell, Q.L.: Measuring similarity of concentration between different informetric distributions : two new approaches (2005) 0.06
    0.064908385 = sum of:
      0.064908385 = product of:
        0.8113549 = sum of:
          0.25702804 = weight(abstract_txt:inequality in 4410) [ClassicSimilarity], result of:
            0.25702804 = score(doc=4410,freq=2.0), product of:
              0.27913418 = queryWeight, product of:
                2.9877074 = boost
                8.334172 = idf(docFreq=28, maxDocs=44421)
                0.011210178 = queryNorm
              0.9208046 = fieldWeight in 4410, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.334172 = idf(docFreq=28, maxDocs=44421)
                0.078125 = fieldNorm(doc=4410)
          0.55432683 = weight(abstract_txt:concentration in 4410) [ClassicSimilarity], result of:
            0.55432683 = score(doc=4410,freq=3.0), product of:
              0.51284117 = queryWeight, product of:
                5.7271423 = boost
                7.9878955 = idf(docFreq=40, maxDocs=44421)
                0.011210178 = queryNorm
              1.0808938 = fieldWeight in 4410, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.9878955 = idf(docFreq=40, maxDocs=44421)
                0.078125 = fieldNorm(doc=4410)
        0.08 = coord(2/25)