Search (27 results, page 1 of 2)

  • × 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) 0.02
    0.024997003 = product of:
      0.049994007 = sum of:
        0.049994007 = product of:
          0.09998801 = sum of:
            0.09998801 = weight(_text_:22 in 3690) [ClassicSimilarity], result of:
              0.09998801 = score(doc=3690,freq=4.0), product of:
                0.1827397 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052184064 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 5.1999 19:22:35
  2. Diodato, V.: Dictionary of bibliometrics (1994) 0.02
    0.024745772 = product of:
      0.049491543 = sum of:
        0.049491543 = product of:
          0.09898309 = sum of:
            0.09898309 = weight(_text_:22 in 5666) [ClassicSimilarity], result of:
              0.09898309 = score(doc=5666,freq=2.0), product of:
                0.1827397 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052184064 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Footnote
    Rez. in: Journal of library and information science 22(1996) no.2, S.116-117 (L.C. Smith)
  3. Bookstein, A.: Informetric distributions : I. Unified overview (1990) 0.02
    0.024745772 = product of:
      0.049491543 = sum of:
        0.049491543 = product of:
          0.09898309 = sum of:
            0.09898309 = weight(_text_:22 in 6902) [ClassicSimilarity], result of:
              0.09898309 = score(doc=6902,freq=2.0), product of:
                0.1827397 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052184064 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 7.2006 18:55:29
  4. Bookstein, A.: Informetric distributions : II. Resilience to ambiguity (1990) 0.02
    0.024745772 = product of:
      0.049491543 = sum of:
        0.049491543 = product of:
          0.09898309 = sum of:
            0.09898309 = weight(_text_:22 in 4689) [ClassicSimilarity], result of:
              0.09898309 = score(doc=4689,freq=2.0), product of:
                0.1827397 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052184064 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 7.2006 18:55:55
  5. Harter, S.P.: Colinked descriptors (1993) 0.02
    0.015401474 = product of:
      0.030802948 = sum of:
        0.030802948 = product of:
          0.061605897 = sum of:
            0.061605897 = weight(_text_:systems in 7963) [ClassicSimilarity], result of:
              0.061605897 = score(doc=7963,freq=4.0), product of:
                0.16037072 = queryWeight, product of:
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.052184064 = queryNorm
                0.38414678 = fieldWeight in 7963, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.0625 = fieldNorm(doc=7963)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Reports the preliminary results of an investigation into the effectiveness of colinked descriptors, a new concept and technique suitable for incorporating into the design of interfaces for information retrieval. The idea is borrowed from the analogous idea in bibliometrics-cocited references. Preliminary results suggest that the technique is extremely effective. As a retrieval technique, colinked descriptors can easily be incorporated into information retrieval interfaces, front-end systems, or standalone, pre-search systems
  6. Li, T.-C.: Reference sources in periodicals : research note (1995) 0.01
    0.014140441 = product of:
      0.028280882 = sum of:
        0.028280882 = product of:
          0.056561764 = sum of:
            0.056561764 = weight(_text_:22 in 5092) [ClassicSimilarity], result of:
              0.056561764 = score(doc=5092,freq=2.0), product of:
                0.1827397 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052184064 = 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)
          0.5 = coord(1/2)
      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
  7. Pichappan, P.; Sangaranachiyar, S.: Ageing approach to scientific eponyms (1996) 0.01
    0.014140441 = product of:
      0.028280882 = sum of:
        0.028280882 = product of:
          0.056561764 = sum of:
            0.056561764 = weight(_text_:22 in 80) [ClassicSimilarity], result of:
              0.056561764 = score(doc=80,freq=2.0), product of:
                0.1827397 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052184064 = 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)
          0.5 = coord(1/2)
      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
  8. Mommoh, O.M.: Subject analysis of post-graduate theses in library, archival and information science at Ahmadu Bello University, Zaria (1995/96) 0.01
    0.014140441 = product of:
      0.028280882 = sum of:
        0.028280882 = product of:
          0.056561764 = sum of:
            0.056561764 = weight(_text_:22 in 673) [ClassicSimilarity], result of:
              0.056561764 = score(doc=673,freq=2.0), product of:
                0.1827397 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052184064 = queryNorm
                0.30952093 = fieldWeight in 673, 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=673)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Library focus. 13/14(1995/96), S.22-25
  9. Chongde, W.; Zhe, W.: Evaluation of the models for Bradford's law (1998) 0.01
    0.014140441 = product of:
      0.028280882 = sum of:
        0.028280882 = product of:
          0.056561764 = sum of:
            0.056561764 = weight(_text_:22 in 3688) [ClassicSimilarity], result of:
              0.056561764 = score(doc=3688,freq=2.0), product of:
                0.1827397 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052184064 = queryNorm
                0.30952093 = fieldWeight in 3688, 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=3688)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 5.1999 19:12:28
  10. Tijssen, R.J.W.; Wijk, E. van: ¬The global science base of information and communication technologies : bibliometric analysis of ICT research papers (1998) 0.01
    0.014140441 = product of:
      0.028280882 = sum of:
        0.028280882 = product of:
          0.056561764 = sum of:
            0.056561764 = weight(_text_:22 in 3691) [ClassicSimilarity], result of:
              0.056561764 = score(doc=3691,freq=2.0), product of:
                0.1827397 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052184064 = queryNorm
                0.30952093 = fieldWeight in 3691, 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=3691)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 5.1999 19:26:54
  11. Chung, Y.-K.: Core international journals of classification systems : an application of Bradford's law (1994) 0.01
    0.013476291 = product of:
      0.026952581 = sum of:
        0.026952581 = product of:
          0.053905163 = sum of:
            0.053905163 = weight(_text_:systems in 5070) [ClassicSimilarity], result of:
              0.053905163 = score(doc=5070,freq=4.0), product of:
                0.16037072 = queryWeight, product of:
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.052184064 = queryNorm
                0.33612844 = fieldWeight in 5070, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=5070)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    By analyzing the source documents and their references by classification systems researchers in the world, this paper presents core journals of the field during the period 1981-1990. The findings show that journal literature in this study confirms to Bradford's law and provides 'Cataloging and classification quarterly (CCQ)' as the most productive journbal, 'Library resources and technical services (LRTS)' as the most frequently cited journal of the field and 'Knowledge organization (KO)', formerly 'International classification (IC)' as the second productive and frequently cited journal of the field. The principal journals publishing source items differs from those used as reference sources of the field. The high-ranked international journals over the years are clearly those to be acquired to obtain the greatest coverage of the field for the least cost
  12. 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) 0.01
    0.012498502 = product of:
      0.024997003 = sum of:
        0.024997003 = product of:
          0.049994007 = sum of:
            0.049994007 = weight(_text_:22 in 2808) [ClassicSimilarity], result of:
              0.049994007 = score(doc=2808,freq=4.0), product of:
                0.1827397 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052184064 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    30. 1.1999 17:22:22
  13. Neth, M.: Citation analysis and the Web (1998) 0.01
    0.012372886 = product of:
      0.024745772 = sum of:
        0.024745772 = product of:
          0.049491543 = sum of:
            0.049491543 = weight(_text_:22 in 108) [ClassicSimilarity], result of:
              0.049491543 = score(doc=108,freq=2.0), product of:
                0.1827397 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052184064 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    10. 1.1999 16:22:37
  14. Haiqi, Z.: ¬The literature of Qigong : publication patterns and subject headings (1997) 0.01
    0.012372886 = product of:
      0.024745772 = sum of:
        0.024745772 = product of:
          0.049491543 = sum of:
            0.049491543 = weight(_text_:22 in 862) [ClassicSimilarity], result of:
              0.049491543 = score(doc=862,freq=2.0), product of:
                0.1827397 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052184064 = queryNorm
                0.2708308 = fieldWeight in 862, 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=862)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    International forum on information and documentation. 22(1997) no.3, S.38-44
  15. Avramescu, A.: Teoria difuziei informatiei stiintifice (1997) 0.01
    0.012372886 = product of:
      0.024745772 = sum of:
        0.024745772 = product of:
          0.049491543 = sum of:
            0.049491543 = weight(_text_:22 in 3030) [ClassicSimilarity], result of:
              0.049491543 = score(doc=3030,freq=2.0), product of:
                0.1827397 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052184064 = queryNorm
                0.2708308 = fieldWeight in 3030, 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=3030)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 2.1999 16:16:11
  16. Falkingham, L.T.; Reeves, R.: Context analysis : a technique for analysing research in a field, applied to literature on the management of R&D at the section level (1998) 0.01
    0.012372886 = product of:
      0.024745772 = sum of:
        0.024745772 = product of:
          0.049491543 = sum of:
            0.049491543 = weight(_text_:22 in 3689) [ClassicSimilarity], result of:
              0.049491543 = score(doc=3689,freq=2.0), product of:
                0.1827397 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052184064 = queryNorm
                0.2708308 = fieldWeight in 3689, 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=3689)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 5.1999 19:18:46
  17. Chung, Y.-K.: Bradford distribution and core authors in classification systems literature (1994) 0.01
    0.010890487 = product of:
      0.021780973 = sum of:
        0.021780973 = product of:
          0.043561947 = sum of:
            0.043561947 = weight(_text_:systems in 5066) [ClassicSimilarity], result of:
              0.043561947 = score(doc=5066,freq=2.0), product of:
                0.16037072 = queryWeight, product of:
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.052184064 = queryNorm
                0.2716328 = fieldWeight in 5066, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.0625 = fieldNorm(doc=5066)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  18. Kostoff, R.N.: Citation analysis cross field normalization : a new paradigm (1997) 0.01
    0.010890487 = product of:
      0.021780973 = sum of:
        0.021780973 = product of:
          0.043561947 = sum of:
            0.043561947 = weight(_text_:systems in 464) [ClassicSimilarity], result of:
              0.043561947 = score(doc=464,freq=2.0), product of:
                0.16037072 = queryWeight, product of:
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.052184064 = queryNorm
                0.2716328 = fieldWeight in 464, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.0625 = fieldNorm(doc=464)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Proposes a new paradigm for comparing quality of published papers across different disciplines. This method uses a figure of merit of the ratio of actual citations received to the potential maximum number of citations that could have been received. It is analogous to approaches used to compare performance in physical systems, and appears intrinsically more useful than present approaches
  19. Marx, W.; Gramm, G.: Literaturflut - Informationslawine - Wissensexplosion : Wächst der Wissenschaft das Wissen über den Kopf? (1997) 0.01
    0.010890487 = product of:
      0.021780973 = sum of:
        0.021780973 = product of:
          0.043561947 = sum of:
            0.043561947 = weight(_text_:systems in 1078) [ClassicSimilarity], result of:
              0.043561947 = score(doc=1078,freq=2.0), product of:
                0.16037072 = queryWeight, product of:
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.052184064 = queryNorm
                0.2716328 = fieldWeight in 1078, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1078)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Scientific information has stopped growing exponentially as in the last 300 years. Nevertheless, the number of scientific papers published yearly remains dramatic. Well orderd databases and sophisticated search systems allow scientists to find the needle in the haystack. A growing number of factual databases as well as more reviews compress and refine information. Not searching but controlling and working up information appear to become the most important problem in the future
  20. Tonta, Y.: Scholarly communication and the use of networked information sources (1996) 0.01
    0.010605331 = product of:
      0.021210661 = sum of:
        0.021210661 = product of:
          0.042421322 = sum of:
            0.042421322 = weight(_text_:22 in 6389) [ClassicSimilarity], result of:
              0.042421322 = score(doc=6389,freq=2.0), product of:
                0.1827397 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.052184064 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    IFLA journal. 22(1996) no.3, S.240-245