Search (201 results, page 1 of 11)

  • × year_i:[1990 TO 2000}
  • × theme_ss:"Informetrie"
  1. Science and technology indicators (1998) 0.09
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    Source
    Journal of the American Society for Information Science. 49(1998) no.1, S.1-91
  2. Informetrics '91 : selected papers from the 3rd International Conference on Bibliometrics, 9-12 Aug. 1991, Bangalore (1993) 0.08
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    Footnote
    Rez. in: Journal of librarianship and information science 25(1993) no.4, S.216 (B. Cronin)
  3. Quoniam, L.: Bibliometric law used for information retrieval (1998) 0.08
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    Abstract
    Zipf's law was used to qualify all the key words of documents in a data set. This qualification was used to build a graphical representation of the resulting indicator in each document. The graphical resolution leads to a document dispatch in a 3 dimensional space. This graphical representation was used as an information retrieval tool without using any keyword. The presentation of a case study is available on the WWW. The graph is drawn in VRML allowing a dynamic picture which is linked to a database management system (FreeWAIS)
    Source
    Scientometrics. 41(1998) nos.1/2, S.83-91
    Type
    a
  4. Esler, S.L.; Nelson, M.L.: Evolution of scientific and technical information distribution (1998) 0.07
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    Abstract
    WWW and related information technologies are transforming the distribution of scientific and technical information (STI). We examine 11 recent, functioning digital libraries focusing on the distribution of STI publications, including journal articles, conference papers, and technical reports. We introduce 4 main categories of digital library projects: based on the architecture (distributed vs. centralized) and the contributor (traditional publisher vs. authoring individual / organization). Many digital library prototypes merely automate existing publishing practices or focus solely on the digitization of the publishing practices cycle output, not sampling and capturing elements of the input. Still others do not consider for distribution the large body of 'gray literature'. We address these deficiencies in the current model of STI exchange by suggesting methods for expanding the scope and target of digital libraries by focusing on a greater source of technical publications and using 'buckets', an object-oriented construct for grouping logically related information objects, to include holdings other than technical publications
    Source
    Journal of the American Society for Information Science. 49(1998) no.1, S.82-91
    Type
    a
  5. Bookstein, A.: Informetric distributions : I. Unified overview (1990) 0.05
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    Date
    22. 7.2006 18:55:29
    Source
    Journal of the American Society for Information Science. 41(1990) no.5, S.368-375
    Type
    a
  6. Bookstein, A.: Informetric distributions : II. Resilience to ambiguity (1990) 0.05
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    Date
    22. 7.2006 18:55:55
    Source
    Journal of the American Society for Information Science. 41(1990) no.5, S.376-386
    Type
    a
  7. Alvarado, R.U.: ¬Una revision critica de la ley de Bradford (1996) 0.05
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    Abstract
    Bradford's law is widely used in collection development to identify the most productive periodicals, but does nott take into account the variables of frequency of publication and number of years of publication during a particular time span. Hence not all periodicals necessarily have the same opportunity to publish relevant articles. To test this hypothesis, the productivity of American sociology periodicals during 1987-91 was analysed and shown to correlate with frequency of publication and number of years of publication, giving a more accurate representation than using Bradford's law as originally formulated
    Footnote
    Übers. des Titels: A critical revision of Bradford's law
    Type
    a
  8. Pichappan, P.; Sangaranachiyar, S.: Ageing approach to scientific eponyms (1996) 0.03
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    Abstract
    There is a decrease in the incidence of explicit references to a paper over time, hence the assumption that information ages. In a study which attempts to discover whether information really ages it is necessary to include eponyms, anonyms and footnote references. Reports a pilot study which demonstrates that there is an increase over time in the frequency of use of eponyms
    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
    Type
    a
  9. Li, T.-C.: Reference sources in periodicals : research note (1995) 0.03
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    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
    Source
    Journal of information; communication; and library science. 2(1995) no.2, S.20-28
    Type
    a
  10. Mommoh, O.M.: Subject analysis of post-graduate theses in library, archival and information science at Ahmadu Bello University, Zaria (1995/96) 0.03
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    Abstract
    Reports results of a bibliometric study of 111 theses accepted by the Department of Library and Information Science, Ahmadu Bello University, Zaria, Nigeria, between 1977 and 1992. The analysis was based on year, type and degree awarded, subject, type of library and geographical area. Concludes that the highest number of submissions was 1991, when 108 MLS theses (97,29%) and 3 PhD theses (2,71%) were accepted. Libraries and readers was the most concetrated subject while the academic library was the most discussed type of library
    Source
    Library focus. 13/14(1995/96), S.22-25
    Type
    a
  11. Tijssen, R.J.W.; Wijk, E. van: ¬The global science base of information and communication technologies : bibliometric analysis of ICT research papers (1998) 0.03
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    Abstract
    International bibliographic databases and related biblimetric indicators together provide an analytical framework and appropriate measure to cover both the 'supply side' - research capabilities and outputs - and 'demand side' - collaboration, diffusion and citation impact - related to information and communication technologies (ICT) research. Presents results of such a bibliometric study describing macro level features of this ICT knowledge base
    Date
    22. 5.1999 19:26:54
    Type
    a
  12. Siddiqui, M.A.: ¬A bibliometric study of authorship characteristics in four international information science journals (1997) 0.03
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    Abstract
    Reports results of a bibliometric study of the authorship characteristics of articles published in 4 major information science periodicals: JASIS, Information technology and libraries, Journal of information science, and Program. The aim was to determine the details of their authors, such as: sex, occupation, affiliation, geographic distribution, and institutional affiliation. A total of 163 articles published in 1993 and written by 294 authors were analyzed. Results indicate that: men (206 or 70%) publish 3.0 times more articles than women (69 or 23,5%). Schools of library and information science contributed the most authors. The majority of authors came from the USA (148 or 50,3%), with the Midwest region claiming the largest share (110 or 25,0%). Academic libraries (110 or 37,4%) account for the major share of library publication. 12 schools of library and information science, in the USA, contributed 32 authors (50,0%) and assistant professors (25 or 39,1%) publish the most in these library schools. Male school of library and information science authors publish 1,6 times more than their female counterparts
    Source
    International forum on information and documentation. 22(1997) no.3, S.3-23
    Type
    a
  13. Tonta, Y.: Scholarly communication and the use of networked information sources (1996) 0.03
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    Abstract
    Examines the use of networked information sources in scholarly communication. Networked information sources are defined broadly to cover: documents and images stored on electronic network hosts; data files; newsgroups; listservs; online information services and electronic periodicals. Reports results of a survey to determine how heavily, if at all, networked information sources are cited in scholarly printed periodicals published in 1993 and 1994. 27 printed periodicals, representing a wide range of subjects and the most influential periodicals in their fields, were identified through the Science Citation Index and Social Science Citation Index Journal Citation Reports. 97 articles were selected for further review and references, footnotes and bibliographies were checked for references to networked information sources. Only 2 articles were found to contain such references. Concludes that, although networked information sources facilitate scholars' work to a great extent during the research process, scholars have yet to incorporate such sources in the bibliographies of their published articles
    Source
    IFLA journal. 22(1996) no.3, S.240-245
    Type
    a
  14. Haiqi, Z.: ¬The literature of Qigong : publication patterns and subject headings (1997) 0.03
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    Abstract
    Reports results of a bibliometric study of the literature of Qigong: a relaxation technique used to teach patients to control their heart rate, blood pressure, temperature and other involuntary functions through controlles breathing. All articles indexed in the MEDLINE CD-ROM database, between 1965 and 1995 were identified using 'breathing exercises' MeSH term. The articles were analyzed for geographical and language distribution and a ranking exercise enabled a core list of periodicals to be identified. In addition, the study shed light on the changing frequency of the MeSH terms and evaluated the research areas by measuring the information from these respective MeSH headings
    Source
    International forum on information and documentation. 22(1997) no.3, S.38-44
    Type
    a
  15. Avramescu, A.: Teoria difuziei informatiei stiintifice (1997) 0.03
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    Abstract
    The theory of diffusion can be successfully applied to scientific information dissemination by identifying space with a series of successive authors, and potential (temperature) with the interest of new authors towards earlier published papers, measured by the number of citations. As the total number of citation equals the number of references, the conservation law is fulfilled and Fourier's parabolic differential equation can be applied
    Date
    22. 2.1999 16:16:11
    Footnote
    Übers. des Titels: Scientific information diffusion theory
    Type
    a
  16. 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
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    Abstract
    Internet based electronic resources are growing dramatically but there have been no empirical studies evaluating the impact of e-sources, as a whole, on formal scholarly communication. reports results of an investigation into how much e-sources have been used in formal scholarly communication, using a case study in the area of Library and Information Science (LIS) during the period 1994 to 1996. 4 citation based indicators were used in the study of the impact measurement. Concludes that, compared with the impact of print sources, the impact of e-sources on formal scholarly communication in LIS is small, as measured by e-sources cited, and does not increase significantly by year even though there is observable growth of these impact across the years. It is found that periodical format is related to the rate of citing e-sources, articles are more likely to cite e-sources than are print priodical articles. However, once authors cite electronic resource, there is no significant difference in the number of references per article by periodical format or by year. Suggests that, at this stage, citing e-sources may depend on authors rather than the periodical format in which authors choose to publish
    Date
    30. 1.1999 17:22:22
    Source
    Journal of information science. 24(1998) no.4, S.241-254
    Type
    a
  17. Neth, M.: Citation analysis and the Web (1998) 0.02
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    Abstract
    Citation analysis has long been used by librarians as an important tool of collection development and the advent of Internet technology and especially the WWW adds a new facet to the role played by citation analysis. One of the reasons why librarians create WWW homepages is to provide users with further sources of interest or reference and to do this libraries include links from their own homepages to other information sources. Reports current research on the analysis of WWW pages as an introduction to an examination of the homepages of 25 art libraries to determine what sites are most often included. The types of linked sites are analyzed based on 3 criteria: location, focus and evidence that the link was evaluated before the connection was establisheds
    Date
    10. 1.1999 16:22:37
    Type
    a
  18. Egghe, L.; Rousseau, R.: Averaging and globalising quotients of informetric and scientometric data (1996) 0.02
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    Abstract
    It is possible, using ISI's Journal Citation Report (JCR), to calculate average impact factors (AIF) for LCR's subject categories but it can be more useful to know the global Impact Factor (GIF) of a subject category and compare the 2 values. Reports results of a study to compare the relationships between AIFs and GIFs of subjects, based on the particular case of the average impact factor of a subfield versus the impact factor of this subfield as a whole, the difference being studied between an average of quotients, denoted as AQ, and a global average, obtained as a quotient of averages, and denoted as GQ. In the case of impact factors, AQ becomes the average impact factor of a field, and GQ becomes its global impact factor. Discusses a number of applications of this technique in the context of informetrics and scientometrics
    Source
    Journal of information science. 22(1996) no.3, S.165-170
    Type
    a
  19. Su, Y.; Han, L.-F.: ¬A new literature growth model : variable exponential growth law of literature (1998) 0.02
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    Abstract
    Derives a 'literature variable exponential growth model' from Price's literature growth model. The research shows that the new model is more convincing than the former ones. Gives detailed calculation procedure, examples, parameter values and mean square errors
    Date
    22. 5.1999 19:22:35
    Type
    a
  20. Diodato, V.: Dictionary of bibliometrics (1994) 0.02
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    Footnote
    Rez. in: Journal of library and information science 22(1996) no.2, S.116-117 (L.C. Smith)

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