Search (46 results, page 1 of 3)

  • × theme_ss:"Citation indexing"
  1. Pichappan, P.: Levels of citation relation between papers (1996) 0.02
    0.023741523 = product of:
      0.11870761 = sum of:
        0.11870761 = weight(_text_:relation in 5725) [ClassicSimilarity], result of:
          0.11870761 = score(doc=5725,freq=2.0), product of:
            0.20534351 = queryWeight, product of:
              5.232299 = idf(docFreq=641, maxDocs=44218)
              0.03924537 = queryNorm
            0.5780928 = fieldWeight in 5725, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.232299 = idf(docFreq=641, maxDocs=44218)
              0.078125 = fieldNorm(doc=5725)
      0.2 = coord(1/5)
    
  2. White, H.D.: Authors as citers over time (2001) 0.02
    0.021854803 = product of:
      0.054637007 = sum of:
        0.047483046 = weight(_text_:relation in 5581) [ClassicSimilarity], result of:
          0.047483046 = score(doc=5581,freq=2.0), product of:
            0.20534351 = queryWeight, product of:
              5.232299 = idf(docFreq=641, maxDocs=44218)
              0.03924537 = queryNorm
            0.23123713 = fieldWeight in 5581, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.232299 = idf(docFreq=641, maxDocs=44218)
              0.03125 = fieldNorm(doc=5581)
        0.0071539627 = product of:
          0.021461887 = sum of:
            0.021461887 = weight(_text_:29 in 5581) [ClassicSimilarity], result of:
              0.021461887 = score(doc=5581,freq=2.0), product of:
                0.13805294 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03924537 = queryNorm
                0.15546128 = fieldWeight in 5581, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03125 = fieldNorm(doc=5581)
          0.33333334 = coord(1/3)
      0.4 = coord(2/5)
    
    Abstract
    This study explores the tendency of authors to recite themselves and others in multiple works over time, using the insights gained to build citation theory. The set of all authors whom an author cites is defined as that author's citation identity. The study explains how to retrieve citation identities from the Institute for Scientific Information's files on Dialog and how to deal with idiosyncrasies of these files. As the author's oeuvre grows, the identity takes the form of a core-and-scatter distribution that may be divided into authors cited only once (unicitations) and authors cited at least twice (recitations). The latter group, especially those recited most frequently, are interpretable as symbols of a citer's main substantive concerns. As illustrated by the top recitees of eight information scientists, identities are intelligible, individualized, and wide-ranging. They are ego-centered without being egotistical. They are often affected by social ties between citers and citees, but the universal motivator seems to be the perceived relevance of the citees' works. Citing styles in identities differ: "scientific-paper style" authors recite heavily, adding to core; "bibliographic-essay style" authors are heavy on unicitations, adding to scatter; "literature-review style" authors do both at once. Identities distill aspects of citers' intellectual lives, such as orienting figures, interdisciplinary interests, bidisciplinary careers, and conduct in controversies. They can also be related to past schemes for classifying citations in categories such as positive-negative and perfunctory- organic; indeed, one author's frequent recitation of another, whether positive or negative, may be the readiest indicator of an organic relation between them. The shape of the core-and-scatter distribution of names in identities can be explained by the principle of least effort. Citers economize on effort by frequently reciting only a relatively small core of names in their identities. They also economize by frequent use of perfunctory citations, which require relatively little context, and infrequent use of negative citations, which require contexts more laborious to set
    Date
    29. 9.2001 13:58:38
  3. Abt, H.A.; Garfield, E.: Is the relationship between numbers of references and paper lengths the same for all sciences? (2002) 0.01
    0.014244914 = product of:
      0.07122457 = sum of:
        0.07122457 = weight(_text_:relation in 5223) [ClassicSimilarity], result of:
          0.07122457 = score(doc=5223,freq=2.0), product of:
            0.20534351 = queryWeight, product of:
              5.232299 = idf(docFreq=641, maxDocs=44218)
              0.03924537 = queryNorm
            0.3468557 = fieldWeight in 5223, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.232299 = idf(docFreq=641, maxDocs=44218)
              0.046875 = fieldNorm(doc=5223)
      0.2 = coord(1/5)
    
    Abstract
    It has been shown in the physical sciences that a paper's length is related to its number of references in a linear manner. Abt and Garfield here look at the life and social sciences with the thought that if the relation holds the citation counts will provide a measure of relative importance across these disciplines. In the life sciences 200 research papers from 1999-2000 were scanned in each of 10 journals to produce counts of 1000 word normalized pages. In the social sciences an average of 70 research papers in nine journals were scanned for the two-year period. Papers of average length in the various sciences have the same average number of references within plus or minus 17%. A look at the 30 to 60 papers over the two years in 18 review journals indicates twice the references of research papers of the same length.
  4. Chen, C.: Mapping scientific frontiers : the quest for knowledge visualization (2003) 0.01
    0.00949661 = product of:
      0.047483046 = sum of:
        0.047483046 = weight(_text_:relation in 2213) [ClassicSimilarity], result of:
          0.047483046 = score(doc=2213,freq=2.0), product of:
            0.20534351 = queryWeight, product of:
              5.232299 = idf(docFreq=641, maxDocs=44218)
              0.03924537 = queryNorm
            0.23123713 = fieldWeight in 2213, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.232299 = idf(docFreq=641, maxDocs=44218)
              0.03125 = fieldNorm(doc=2213)
      0.2 = coord(1/5)
    
    Footnote
    Rez. in: JASIST 55(2004) no.4, S.363-365 (J.W. Schneider): "Theories and methods for mapping scientific frontiers have existed for decades-especially within quantitative studies of science. This book investigates mapping scientific frontiers from the perspective of visual thinking and visual exploration (visual communication). The central theme is construction of visual-spatial representations that may convey insights into the dynamic structure of scientific frontiers. The author's previous book, Information Visualisation and Virtual Environments (1999), also concerns some of the ideas behind and possible benefits of visual communication. This new book takes a special focus an knowledge visualization, particularly in relation to science literature. The book is not a technical tutorial as the focus is an principles of visual communication and ways that may reveal the dynamics of scientific frontiers. The new approach to science mapping presented is the culmination of different approaches from several disciplines, such as philosophy of science, information retrieval, scientometrics, domain analysis, and information visualization. The book therefore addresses an audience with different disciplinary backgrounds and tries to stimulate interdisciplinary research. Chapter 1, The Growth of Scientific Knowledge, introduces a range of examples that illustrate fundamental issues concerning visual communication in general and science mapping in particular. Chapter 2, Mapping the Universe, focuses an the basic principles of cartography for visual communication. Chapter 3, Mapping the Mind, turns the attention inward and explores the design of mind maps, maps that represent our thoughts, experience, and knowledge. Chapter 4, Enabling Techniques for Science Mapping, essentially outlines the author's basic approach to science mapping.
  5. Wouters, P.; Vries, R. de: Formally citing the Web (2004) 0.01
    0.00949661 = product of:
      0.047483046 = sum of:
        0.047483046 = weight(_text_:relation in 3093) [ClassicSimilarity], result of:
          0.047483046 = score(doc=3093,freq=2.0), product of:
            0.20534351 = queryWeight, product of:
              5.232299 = idf(docFreq=641, maxDocs=44218)
              0.03924537 = queryNorm
            0.23123713 = fieldWeight in 3093, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.232299 = idf(docFreq=641, maxDocs=44218)
              0.03125 = fieldNorm(doc=3093)
      0.2 = coord(1/5)
    
    Abstract
    How do authors refer to Web-based information sources in their formal scientific publications? It is not yet weIl known how scientists and scholars actually include new types of information sources, available through the new media, in their published work. This article reports an a comparative study of the lists of references in 38 scientific journals in five different scientific and social scientific fields. The fields are sociology, library and information science, biochemistry and biotechnology, neuroscience, and the mathematics of computing. As is weIl known, references, citations, and hyperlinks play different roles in academic publishing and communication. Our study focuses an hyperlinks as attributes of references in formal scholarly publications. The study developed and applied a method to analyze the differential roles of publishing media in the analysis of scientific and scholarly literature references. The present secondary databases that include reference and citation data (the Web of Science) cannot be used for this type of research. By the automated processing and analysis of the full text of scientific and scholarly articles, we were able to extract the references and hyperlinks contained in these references in relation to other features of the scientific and scholarly literature. Our findings show that hyperlinking references are indeed, as expected, abundantly present in the formal literature. They also tend to cite more recent literature than the average reference. The large majority of the references are to Web instances of traditional scientific journals. Other types of Web-based information sources are less weIl represented in the lists of references, except in the case of pure e-journals. We conclude that this can be explained by taking the role of the publisher into account. Indeed, it seems that the shift from print-based to electronic publishing has created new roles for the publisher. By shaping the way scientific references are hyperlinking to other information sources, the publisher may have a large impact an the availability of scientific and scholarly information.
  6. Nicolaisen, J.: Citation analysis (2007) 0.01
    0.005671687 = product of:
      0.028358433 = sum of:
        0.028358433 = product of:
          0.0850753 = sum of:
            0.0850753 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
              0.0850753 = score(doc=6091,freq=2.0), product of:
                0.13743061 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03924537 = queryNorm
                0.61904186 = fieldWeight in 6091, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.125 = fieldNorm(doc=6091)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    13. 7.2008 19:53:22
  7. Døsen, K.: One more reference on self-reference (1992) 0.01
    0.005671687 = product of:
      0.028358433 = sum of:
        0.028358433 = product of:
          0.0850753 = sum of:
            0.0850753 = weight(_text_:22 in 4604) [ClassicSimilarity], result of:
              0.0850753 = score(doc=4604,freq=2.0), product of:
                0.13743061 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03924537 = queryNorm
                0.61904186 = fieldWeight in 4604, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.125 = fieldNorm(doc=4604)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    7. 2.2005 14:10:22
  8. Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001) 0.01
    0.0050131106 = product of:
      0.025065552 = sum of:
        0.025065552 = product of:
          0.07519665 = sum of:
            0.07519665 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
              0.07519665 = score(doc=3925,freq=4.0), product of:
                0.13743061 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03924537 = queryNorm
                0.54716086 = fieldWeight in 3925, 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=3925)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    22. 7.2006 15:22:28
  9. Williams, R.M.: ISI search network research front specialities (1983) 0.01
    0.0050077736 = product of:
      0.025038868 = sum of:
        0.025038868 = product of:
          0.075116605 = sum of:
            0.075116605 = weight(_text_:29 in 445) [ClassicSimilarity], result of:
              0.075116605 = score(doc=445,freq=2.0), product of:
                0.13805294 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03924537 = queryNorm
                0.5441145 = fieldWeight in 445, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.109375 = fieldNorm(doc=445)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Source
    Deutscher Dokumentartag 1982, Lübeck-Travemünde, 29.-30.9.1982: Fachinformation im Zeitalter der Informationsindustrie. Bearb.: H. Strohl-Goebel
  10. Remler, A.: Lässt sich wissenschaftliche Leistung messen? : Wer zitiert wird, liegt vorne - in den USA berechnet man Forschungsleistung nach einem Zitat-Index (2000) 0.01
    0.0050077736 = product of:
      0.025038868 = sum of:
        0.025038868 = product of:
          0.075116605 = sum of:
            0.075116605 = weight(_text_:29 in 5392) [ClassicSimilarity], result of:
              0.075116605 = score(doc=5392,freq=2.0), product of:
                0.13805294 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03924537 = queryNorm
                0.5441145 = fieldWeight in 5392, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.109375 = fieldNorm(doc=5392)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    30.10.2000 17:47:29
  11. Lindholm-Romantschuk, Y.: Scholarly book reviewing in the social sciences and humanities : the flow of ides within and among disciplines (1998) 0.00
    0.0035769814 = product of:
      0.017884906 = sum of:
        0.017884906 = product of:
          0.05365472 = sum of:
            0.05365472 = weight(_text_:29 in 4063) [ClassicSimilarity], result of:
              0.05365472 = score(doc=4063,freq=2.0), product of:
                0.13805294 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03924537 = queryNorm
                0.38865322 = fieldWeight in 4063, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.078125 = fieldNorm(doc=4063)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    29. 3.1996 18:19:32
  12. Garfield, E.; Stock, W.G.: Citation Consciousness : Interview with Eugene Garfiels, chairman emeritus of ISI; Philadelphia (2002) 0.00
    0.0035448044 = product of:
      0.017724022 = sum of:
        0.017724022 = product of:
          0.053172063 = sum of:
            0.053172063 = weight(_text_:22 in 613) [ClassicSimilarity], result of:
              0.053172063 = score(doc=613,freq=2.0), product of:
                0.13743061 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03924537 = queryNorm
                0.38690117 = fieldWeight in 613, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=613)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Source
    Password. 2002, H.6, S.22-25
  13. Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009) 0.00
    0.0030078662 = product of:
      0.015039331 = sum of:
        0.015039331 = product of:
          0.045117993 = sum of:
            0.045117993 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
              0.045117993 = score(doc=2763,freq=4.0), product of:
                0.13743061 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03924537 = queryNorm
                0.32829654 = fieldWeight in 2763, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2763)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    22. 3.2009 19:22:35
  14. Pao, M.L.: Term and citation retrieval : a field study (1993) 0.00
    0.0028615852 = product of:
      0.0143079255 = sum of:
        0.0143079255 = product of:
          0.042923775 = sum of:
            0.042923775 = weight(_text_:29 in 3741) [ClassicSimilarity], result of:
              0.042923775 = score(doc=3741,freq=2.0), product of:
                0.13805294 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03924537 = queryNorm
                0.31092256 = fieldWeight in 3741, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3741)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Source
    Information processing and management. 29(1993) no.1, S.95-112
  15. Rousseau, R.: Timelines in citation research (2006) 0.00
    0.0028615852 = product of:
      0.0143079255 = sum of:
        0.0143079255 = product of:
          0.042923775 = sum of:
            0.042923775 = weight(_text_:29 in 1746) [ClassicSimilarity], result of:
              0.042923775 = score(doc=1746,freq=2.0), product of:
                0.13805294 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03924537 = queryNorm
                0.31092256 = fieldWeight in 1746, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1746)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    18. 8.2006 14:29:40
  16. Garfield, E.; Pudovkin, A.I.; Istomin, V.S.: Why do we need algorithmic historiography? (2003) 0.00
    0.0028615852 = product of:
      0.0143079255 = sum of:
        0.0143079255 = product of:
          0.042923775 = sum of:
            0.042923775 = weight(_text_:29 in 1606) [ClassicSimilarity], result of:
              0.042923775 = score(doc=1606,freq=2.0), product of:
                0.13805294 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03924537 = queryNorm
                0.31092256 = fieldWeight in 1606, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1606)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    29. 3.2003 19:52:23
  17. Kurtz, M.J.; Eichhorn, G.; Accomazzi, A.; Grant, C.; Demleitner, M.; Henneken, E.; Murray, S.S.: ¬The effect of use and access on citations (2005) 0.00
    0.0028615852 = product of:
      0.0143079255 = sum of:
        0.0143079255 = product of:
          0.042923775 = sum of:
            0.042923775 = weight(_text_:29 in 1064) [ClassicSimilarity], result of:
              0.042923775 = score(doc=1064,freq=2.0), product of:
                0.13805294 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03924537 = queryNorm
                0.31092256 = fieldWeight in 1064, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1064)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    27.12.2007 17:16:29
  18. Bensman, S.J.: Eugene Garfield, Francis Narin, and PageRank : the theoretical bases of the Google search engine (2013) 0.00
    0.0028358435 = product of:
      0.014179217 = sum of:
        0.014179217 = product of:
          0.04253765 = sum of:
            0.04253765 = weight(_text_:22 in 1149) [ClassicSimilarity], result of:
              0.04253765 = score(doc=1149,freq=2.0), product of:
                0.13743061 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03924537 = queryNorm
                0.30952093 = fieldWeight in 1149, 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=1149)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    17.12.2013 11:02:22
  19. East, J.W.: Citations to conference papers and the implications for cataloging (1985) 0.00
    0.0025038868 = product of:
      0.012519434 = sum of:
        0.012519434 = product of:
          0.037558302 = sum of:
            0.037558302 = weight(_text_:29 in 7928) [ClassicSimilarity], result of:
              0.037558302 = score(doc=7928,freq=2.0), product of:
                0.13805294 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03924537 = queryNorm
                0.27205724 = fieldWeight in 7928, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=7928)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Source
    Library resources and technical services. 29(1985), S.189-194
  20. Morris, S.A.; Yen, G.; Wu, Z.; Asnake, B.: Time line visualization of research fronts (2003) 0.00
    0.0025038868 = product of:
      0.012519434 = sum of:
        0.012519434 = product of:
          0.037558302 = sum of:
            0.037558302 = weight(_text_:29 in 1452) [ClassicSimilarity], result of:
              0.037558302 = score(doc=1452,freq=2.0), product of:
                0.13805294 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03924537 = queryNorm
                0.27205724 = fieldWeight in 1452, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1452)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    29. 3.2003 19:51:59

Languages

  • e 38
  • d 8

Types

  • a 41
  • el 4
  • m 3
  • r 1
  • More… Less…