Search (44 results, page 1 of 3)

  • × theme_ss:"Informetrie"
  • × year_i:[1990 TO 2000}
  1. Su, Y.; Han, L.-F.: ¬A new literature growth model : variable exponential growth law of literature (1998) 0.07 
    0.06674345 = product of:
  0.1334869 = sum of:
    0.1334869 = product of:
      0.20023033 = sum of:
        0.11449406 = weight(_text_:y in 3690) [ClassicSimilarity], result of:
          0.11449406 = score(doc=3690,freq=2.0), product of:
            0.21533579 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.044746026 = queryNorm
            0.53170013 = fieldWeight in 3690, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.078125 = fieldNorm(doc=3690)
        0.08573626 = weight(_text_:22 in 3690) [ClassicSimilarity], result of:
          0.08573626 = score(doc=3690,freq=4.0), product of:
            0.15669297 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044746026 = queryNorm
            0.54716086 = fieldWeight in 3690, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=3690)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    22. 5.1999 19:22:35
  2. Tsay, M.-Y.: Library journal use and citation half-life in medical science (1998) 0.05 
    0.04836928 = product of:
  0.09673856 = sum of:
    0.09673856 = product of:
      0.14510784 = sum of:
        0.11449406 = weight(_text_:y in 2324) [ClassicSimilarity], result of:
          0.11449406 = score(doc=2324,freq=2.0), product of:
            0.21533579 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.044746026 = queryNorm
            0.53170013 = fieldWeight in 2324, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.078125 = fieldNorm(doc=2324)
        0.030613774 = weight(_text_:m in 2324) [ClassicSimilarity], result of:
          0.030613774 = score(doc=2324,freq=2.0), product of:
            0.11134819 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.044746026 = queryNorm
            0.27493733 = fieldWeight in 2324, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.078125 = fieldNorm(doc=2324)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
  3. Diodato, V.: Dictionary of bibliometrics (1994) 0.04 
    0.04257795 = product of:
  0.0851559 = sum of:
    0.0851559 = product of:
      0.12773384 = sum of:
        0.042859282 = weight(_text_:m in 5666) [ClassicSimilarity], result of:
          0.042859282 = score(doc=5666,freq=2.0), product of:
            0.11134819 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.044746026 = queryNorm
            0.38491225 = fieldWeight in 5666, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.109375 = fieldNorm(doc=5666)
        0.08487456 = weight(_text_:22 in 5666) [ClassicSimilarity], result of:
          0.08487456 = score(doc=5666,freq=2.0), product of:
            0.15669297 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044746026 = queryNorm
            0.5416616 = fieldWeight in 5666, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=5666)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Footnote
    Rez. in: Journal of library and information science 22(1996) no.2, S.116-117 (L.C. Smith)
    Type
    m
  4. Chung, Y.-K.: Bradford distribution and core authors in classification systems literature (1994) 0.04 
    0.038695425 = product of:
  0.07739085 = sum of:
    0.07739085 = product of:
      0.116086274 = sum of:
        0.091595255 = weight(_text_:y in 5066) [ClassicSimilarity], result of:
          0.091595255 = score(doc=5066,freq=2.0), product of:
            0.21533579 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.044746026 = queryNorm
            0.4253601 = fieldWeight in 5066, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.0625 = fieldNorm(doc=5066)
        0.024491018 = weight(_text_:m in 5066) [ClassicSimilarity], result of:
          0.024491018 = score(doc=5066,freq=2.0), product of:
            0.11134819 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.044746026 = queryNorm
            0.21994986 = fieldWeight in 5066, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.0625 = fieldNorm(doc=5066)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Abstract
    Bradford's law of scatter was applied to the analysis of the authors of source documents on the subject of classification schemes, published in core periodicals over the period 1981-1990. Results indicated that: core authors of the international classification system literature are Library of Congress, M. Dewey, S. Ranganathan, J. Comaroni, A. Neelameghan, L. Chan and K. Markey; the highly cited authors are linked either to the developers of the classification schemes or to a research centre, or else they authored the most frequently cited books; and the data conforms to Bradford's Law of Scatter
  5. Tonta, Y.: Scholarly communication and the use of networked information sources (1996) 0.04 
    0.035023753 = product of:
  0.070047505 = sum of:
    0.070047505 = product of:
      0.105071254 = sum of:
        0.06869644 = weight(_text_:y in 6389) [ClassicSimilarity], result of:
          0.06869644 = score(doc=6389,freq=2.0), product of:
            0.21533579 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.044746026 = queryNorm
            0.3190201 = fieldWeight in 6389, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.046875 = fieldNorm(doc=6389)
        0.036374815 = weight(_text_:22 in 6389) [ClassicSimilarity], result of:
          0.036374815 = score(doc=6389,freq=2.0), product of:
            0.15669297 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044746026 = queryNorm
            0.23214069 = fieldWeight in 6389, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=6389)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Source
    IFLA journal. 22(1996) no.3, S.240-245
  6. Tsay, M.-Y.: From Science Citation Index to Journal Citation Reports, amd criteria for journals evaluation (1997) 0.03 
    0.033858497 = product of:
  0.06771699 = sum of:
    0.06771699 = product of:
      0.10157549 = sum of:
        0.08014584 = weight(_text_:y in 657) [ClassicSimilarity], result of:
          0.08014584 = score(doc=657,freq=2.0), product of:
            0.21533579 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.044746026 = queryNorm
            0.3721901 = fieldWeight in 657, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.0546875 = fieldNorm(doc=657)
        0.021429641 = weight(_text_:m in 657) [ClassicSimilarity], result of:
          0.021429641 = score(doc=657,freq=2.0), product of:
            0.11134819 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.044746026 = queryNorm
            0.19245613 = fieldWeight in 657, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.0546875 = fieldNorm(doc=657)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
  7. Zhang, Y.: ¬The impact of Internet-based electronic resources on formal scholarly communication in the area of library and information science : a citation analysis (1998) 0.03 
    0.033371724 = product of:
  0.06674345 = sum of:
    0.06674345 = product of:
      0.100115165 = sum of:
        0.05724703 = weight(_text_:y in 2808) [ClassicSimilarity], result of:
          0.05724703 = score(doc=2808,freq=2.0), product of:
            0.21533579 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.044746026 = queryNorm
            0.26585007 = fieldWeight in 2808, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2808)
        0.04286813 = weight(_text_:22 in 2808) [ClassicSimilarity], result of:
          0.04286813 = score(doc=2808,freq=4.0), product of:
            0.15669297 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044746026 = queryNorm
            0.27358043 = fieldWeight in 2808, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2808)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    30. 1.1999 17:22:22
  8. Neth, M.: Citation analysis and the Web (1998) 0.02 
    0.021288974 = product of:
  0.04257795 = sum of:
    0.04257795 = product of:
      0.06386692 = sum of:
        0.021429641 = weight(_text_:m in 108) [ClassicSimilarity], result of:
          0.021429641 = score(doc=108,freq=2.0), product of:
            0.11134819 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.044746026 = queryNorm
            0.19245613 = fieldWeight in 108, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.0546875 = fieldNorm(doc=108)
        0.04243728 = weight(_text_:22 in 108) [ClassicSimilarity], result of:
          0.04243728 = score(doc=108,freq=2.0), product of:
            0.15669297 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044746026 = queryNorm
            0.2708308 = fieldWeight in 108, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=108)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    10. 1.1999 16:22:37
  9. Ding, Y.: Scholarly communication and bibliometrics : Part 1: The scholarly communication model: literature review (1998) 0.02 
    0.019082345 = product of:
  0.03816469 = sum of:
    0.03816469 = product of:
      0.11449406 = sum of:
        0.11449406 = weight(_text_:y in 3995) [ClassicSimilarity], result of:
          0.11449406 = score(doc=3995,freq=2.0), product of:
            0.21533579 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.044746026 = queryNorm
            0.53170013 = fieldWeight in 3995, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.078125 = fieldNorm(doc=3995)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
  10. Chen, Y.-S.; Chong, P.P.; Tong, M.Y.: Dynamic behavior of Bradford's law (1995) 0.02 
    0.015265876 = product of:
  0.030531753 = sum of:
    0.030531753 = product of:
      0.091595255 = sum of:
        0.091595255 = weight(_text_:y in 2150) [ClassicSimilarity], result of:
          0.091595255 = score(doc=2150,freq=2.0), product of:
            0.21533579 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.044746026 = queryNorm
            0.4253601 = fieldWeight in 2150, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.0625 = fieldNorm(doc=2150)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
  11. Fujigaki, Y.: ¬The citation system : citation networks as repeatedly focusing on difference, continuous re-evaluation, and as persistent knowledge accumulation (1998) 0.02 
    0.015265876 = product of:
  0.030531753 = sum of:
    0.030531753 = product of:
      0.091595255 = sum of:
        0.091595255 = weight(_text_:y in 5129) [ClassicSimilarity], result of:
          0.091595255 = score(doc=5129,freq=2.0), product of:
            0.21533579 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.044746026 = queryNorm
            0.4253601 = fieldWeight in 5129, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.0625 = fieldNorm(doc=5129)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
  12. Bookstein, A.: Informetric distributions : I. Unified overview (1990) 0.01 
    0.014145761 = product of:
  0.028291522 = sum of:
    0.028291522 = product of:
      0.08487456 = sum of:
        0.08487456 = weight(_text_:22 in 6902) [ClassicSimilarity], result of:
          0.08487456 = score(doc=6902,freq=2.0), product of:
            0.15669297 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044746026 = queryNorm
            0.5416616 = fieldWeight in 6902, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=6902)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Date
    22. 7.2006 18:55:29
  13. Bookstein, A.: Informetric distributions : II. Resilience to ambiguity (1990) 0.01 
    0.014145761 = product of:
  0.028291522 = sum of:
    0.028291522 = product of:
      0.08487456 = sum of:
        0.08487456 = weight(_text_:22 in 4689) [ClassicSimilarity], result of:
          0.08487456 = score(doc=4689,freq=2.0), product of:
            0.15669297 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044746026 = queryNorm
            0.5416616 = fieldWeight in 4689, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=4689)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Date
    22. 7.2006 18:55:55
  14. Chung, Y.-K.: Core international journals of classification systems : an application of Bradford's law (1994) 0.01 
    0.013357641 = product of:
  0.026715282 = sum of:
    0.026715282 = product of:
      0.08014584 = sum of:
        0.08014584 = weight(_text_:y in 5070) [ClassicSimilarity], result of:
          0.08014584 = score(doc=5070,freq=2.0), product of:
            0.21533579 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.044746026 = queryNorm
            0.3721901 = fieldWeight in 5070, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5070)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
  15. Ding, Y.: Visualization of intellectual structure in information retrieval : author cocitation analysis (1998) 0.01 
    0.013357641 = product of:
  0.026715282 = sum of:
    0.026715282 = product of:
      0.08014584 = sum of:
        0.08014584 = weight(_text_:y in 2792) [ClassicSimilarity], result of:
          0.08014584 = score(doc=2792,freq=2.0), product of:
            0.21533579 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.044746026 = queryNorm
            0.3721901 = fieldWeight in 2792, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2792)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
  16. Harter, S.P.; Cheng, Y.-R.: Colinked descriptors : improving vocabulary selection for end-user searching (1996) 0.01 
    0.011449407 = product of:
  0.022898814 = sum of:
    0.022898814 = product of:
      0.06869644 = sum of:
        0.06869644 = weight(_text_:y in 4216) [ClassicSimilarity], result of:
          0.06869644 = score(doc=4216,freq=2.0), product of:
            0.21533579 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.044746026 = queryNorm
            0.3190201 = fieldWeight in 4216, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.046875 = fieldNorm(doc=4216)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
  17. Stock, W.G.: Wissenschaftsevaluation : die Bewertung wissenschaftlicher Forschung und Lehre (1994) 0.01 
    0.008163673 = product of:
  0.016327346 = sum of:
    0.016327346 = product of:
      0.048982035 = sum of:
        0.048982035 = weight(_text_:m in 242) [ClassicSimilarity], result of:
          0.048982035 = score(doc=242,freq=2.0), product of:
            0.11134819 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.044746026 = queryNorm
            0.4398997 = fieldWeight in 242, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.125 = fieldNorm(doc=242)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Type
    m
  18. Egghe, L.: On the law of Zipf-Mandelbrot for multi-word phrases (1999) 0.01 
    0.008163673 = product of:
  0.016327346 = sum of:
    0.016327346 = product of:
      0.048982035 = sum of:
        0.048982035 = weight(_text_:m in 3058) [ClassicSimilarity], result of:
          0.048982035 = score(doc=3058,freq=8.0), product of:
            0.11134819 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.044746026 = queryNorm
            0.4398997 = fieldWeight in 3058, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.0625 = fieldNorm(doc=3058)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Abstract
    This article studies the probabilities of the occurence of multi-word (m-word) phrases (m=2,3,...) in relation to the probabilities of occurence of the single words. It is well known that, in the latter case, the lae of Zipf is valid (i.e., a power law). We prove that in the case of m-word phrases (m>=2), this is not the case. We present 2 independent proof of this
  19. Li, T.-C.: Reference sources in periodicals : research note (1995) 0.01 
    0.008083292 = product of:
  0.016166585 = sum of:
    0.016166585 = product of:
      0.04849975 = sum of:
        0.04849975 = weight(_text_:22 in 5092) [ClassicSimilarity], result of:
          0.04849975 = score(doc=5092,freq=2.0), product of:
            0.15669297 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044746026 = queryNorm
            0.30952093 = fieldWeight in 5092, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=5092)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Abstract
    Presents a list of 53 periodicals in 22 subject fields which regularly provide bibliographies of theses, research in progress and patents in their particular subject field. The fields of business, economics, history and literature have most periodical listings of dissertations and theses. Also lists 63 periodicals in 25 sub-disciplines which provide rankings or ratings. Rankings and ratings information predominates in the fields of business, sports and games, finance and banking, and library and information science
  20. Pichappan, P.; Sangaranachiyar, S.: Ageing approach to scientific eponyms (1996) 0.01 
    0.008083292 = product of:
  0.016166585 = sum of:
    0.016166585 = product of:
      0.04849975 = sum of:
        0.04849975 = weight(_text_:22 in 80) [ClassicSimilarity], result of:
          0.04849975 = score(doc=80,freq=2.0), product of:
            0.15669297 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044746026 = queryNorm
            0.30952093 = fieldWeight in 80, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=80)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Footnote
    Report presented at the 16th National Indian Association of Special Libraries and Information Centres Seminar Special Interest Group Meeting on Informatrics in Bombay, 19-22 Dec 94

Authors

Languages

  • e 36
  • d 4
  • ? 1
  • chi 1
  • m 1
  • ro 1
  • More… Less…

Types

  • a 36
  • m 7
  • b 2
  • s 1
  • More… Less…

Themes

Subjects

Classifications