Search (122 results, page 2 of 7)

  • × theme_ss:"Informetrie"
  • × year_i:[1990 TO 2000}
  1. Wang, P.: ¬An empirical study of knowledge structures of research topics (1999) 0.00
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    Abstract
    How knowledge is organized in human memory is of interest to both information science and cognitive science. The current information retrieval (IR) systems can be improved if we understand which conceptual structures could facilitate users in information processing and seeking. This project examined twenty-two cognitive maps on ten research topics generated by ten experts and eleven non-experts. Experts were those who had completed a research project on the topic prior to participating in this study, while non-experts were from the same academic department who were familiar with the topic but had not conducted any in-depth research on it. A research topic can be represented by a vocabulary and the relationships among the terms in the vocabulary. A cognitive map visualizes the vocabulary and its configuration in a plane. We observed that experts did not generate the maps much faster than non-experts. Both experts and non-experts modified the given vocabulary by either adding or dropping terms. The dominant configuration for the maps was top-down, while five maps were orientated in left-right or radical structure (from a center). Experts tended to use problem-oriented approach to organize the vocabulary while non-experts often applied discipline-oriented hierarchical structure. Despite of many differences in vocabulary and structure by individuals, there are terms clustered in a similar ways across maps indicating an agreed-upon semantic closeness among these terms
    Imprint
    Medford, NJ : Information Today
    Series
    Proceedings of the American Society for Information Science; vol.36
    Source
    Knowledge: creation, organization and use. Proceedings of the 62nd Annual Meeting of the American Society for Information Science, 31.10.-4.11.1999. Ed.: L. Woods
  2. Fujigaki, Y.: ¬The citation system : citation networks as repeatedly focusing on difference, continuous re-evaluation, and as persistent knowledge accumulation (1998) 0.00
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    Abstract
    States that it can be shown that claims of a lack of theories of citation are also indicative of a great need for a theory which links science dynamics and measurement. There is a wide gap between qualitative (science dynamics) and quantitative (measurement) approaches. To link them, proposes the use of the citation system, that potentially bridges a gap between measurement and epistemology, by applying system theory to the publication system
  3. Siddiqui, M.A.: ¬A bibliometric study of authorship characteristics in four international information science journals (1997) 0.00
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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
  4. Li, T.-C.: Reference sources in periodicals : research note (1995) 0.00
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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
  5. Pichappan, P.; Sangaranachiyar, S.: Ageing approach to scientific eponyms (1996) 0.00
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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
  6. Leydesdorff, L.: Why words and co-word cannot map the development of the science (1997) 0.00
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    Abstract
    Analyses and compares in term of co-occurrences and co-absenses of words in a restricted set of full-text articles from a sub-specialty of biochemistry. By using the distribution of words over the section, a clear distinction among 'theoretical' 'observation', and 'methodological' terminology can be made in individual articles. However, at the level of the set this structure is no longer retrieval: Words change both in terms of frequencies of relations with other words, and in terms of positional meaning from 1 text to another. The fluidity of networks in which nodes and links may chenge positions is ecpected to destabilise representations of developments of the sciences on the basis of co-occurrences and co-absenses of words. Discusses the consequences for the lexicographic approach to generating artificial intelligence from scientific texts
    Source
    Journal of the American Society for Information Science. 48(1997) no.5, S.418-427
  7. Mommoh, O.M.: Subject analysis of post-graduate theses in library, archival and information science at Ahmadu Bello University, Zaria (1995/96) 0.00
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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
  8. Tijssen, R.J.W.; Wijk, E. van: ¬The global science base of information and communication technologies : bibliometric analysis of ICT research papers (1998) 0.00
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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
  9. Informations- und Wissensverarbeitung in den Sozialwissenschaften : Beiträge zur Umsetzung neuer Informationstechnologien (1994) 0.00
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    Abstract
    Die Beiträge behandeln aus verschiedenen Blickwinkeln einen durch die Begriffe Sozialwissenschaft-Informatik-Information abgegrenzten, interdisziplinären Themenkomplex. Gerade in den Sozialwissenschaften haben die qualitative Textinterpretation und die Suche nach typischen, einzelnen Fällen ihren festen Stellenwert, und automatische Informationssuche und Informationsaufbereitung sind zu unverzichtbaren Forschungsinstrumenten geworden. Dieser Band enthält eine Vielzahl von Fachbeiträgen, die im Rahmen entsprechender Spezialveranstaltungen entstanden sind oder eigens für diesen Band geschrieben wurden. Sowohl als Einführungen wie auch im Rahmen spezieller Fragestellungen werden Ansätze aus den Gebieten Künstliche Intelligenz, Bilderkennung, Kommunikationsnetze, Hypertext, Szientometrie, Bibliometrie u.a., jeweils mit Bezug auf sozialwissenschaftliche Anwendung, vorgestellt
    Content
    Enthält u.a. die Beiträge: INGWERSEN, P.: Information science as a cognitive science; MEDER, N.: Objekt-orientierte Wissensdarstellung und -navigation; SPIESS, M.: Repräsentation unsicheren Wissens; HENRICHS, N.: Begriffswandel in Datenbanken: kontextuelle Inhaltsanalyse für Disambiguierung und ideengeschichtliche Analyse; VOGT, C. u. R. WILLE: Formale Begriffsanalyse: Darstellung und Analyse von bibliographischen Daten; RITTBERGER, M.: Online-Retrieval und Hypertext: auf dem Weg zu verknüpften Datenbanken und offenen Hypertextsystemen; SCHOPEN, M.: GRIPS-Menu: Unterstützung von Endnutzerrecherchen in Literaturdatenbanken des DIMDI; KLOSE, G. u. T. PIRLEIN: Wissensmodellierung in LILOG; DANIEL, H.-D.: Peer-review als Qualitätsfilter im wissenschaftlichen Publikationswesen
  10. Haiqi, Z.: ¬The literature of Qigong : publication patterns and subject headings (1997) 0.00
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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
  11. Avramescu, A.: Teoria difuziei informatiei stiintifice (1997) 0.00
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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
  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) 0.00
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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
  13. Bar-Ilan, J.: On the overlap, the precision and estimated recall of search engines : a case study of the query 'Erdös' (1998) 0.00
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    Abstract
    Investigates the retrieval capabilities of 6 Internet search engines on a simple query. Existing work on search engine evaluation considers only the first 10 or 20 results returned by the search engine. In this work, all documents that the search engine pointed at were retrieved and thoroughly examined. Thus the precision of the whole retrieval process could be calculated, the overlap between the results of the engines studied, and an estimate on the recall of the searches given. The precision of the engines is high, recall is very low and the overlap is minimal
  14. Egghe, L.; Rousseau, R.: Averaging and globalising quotients of informetric and scientometric data (1996) 0.00
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    Source
    Journal of information science. 22(1996) no.3, S.165-170
  15. Stock, W.G.: Wirtschaftsinformationen aus informetrischen Online-Recherchen (1992) 0.00
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    Abstract
    Online databases can be used for statistical analysis, creating new information. Discusses 4 methods applied to economic information: time series, rankings, semantic networks, and graphs of information flow
  16. Youngen, G.K.: Citation patterns to traditional and electronic preprints in the published literature (1998) 0.00
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    Abstract
    The number of physics and astronomy preprints (manuscripts intended for publication but circulated for peer comment prior to submission) available electronically has increased dramatically over the past 5 years and Internet accessible preprint Web servers at the Stanford Accelerator Laboratory (SLAC) and the Los Alamos National Laboratoty (LANL) provide unrestricted access to citations and full text of many of these papers long before they appear in print. Includes data for periodicals ranked by number of citations to preprints and electronic preprints (e-prints). Identifies the growing importance of e-prints in the published literature and addresses areas of concern regarding their future role in scientific communication, including: inclusion of e-prints in abstracting and indexing services; connecting electronic periodicals with e-prints; guidelines for withdrawal and revision of e-prints; and maintaining the integritiy of the e-print servers
  17. Duff, A.S.: ¬The '¬information society' as paradigm : a bibliometric enquiry (1995) 0.00
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    Abstract
    Investigates the claim that the 'information society' constitutes a new paradigm and describes the use of online bibliometrics to investigate this claim. Judges by its bibliometric behaviour, it is not yet possible to say with any certainty that the 'information society' has achieved paradigmatic status
    Source
    Journal of information science. 21(1995) no.5, S.390-395
  18. Su, Y.; Han, L.-F.: ¬A new literature growth model : variable exponential growth law of literature (1998) 0.00
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    Date
    22. 5.1999 19:22:35
  19. Cano, V.: Bibliometric overview of library and information science research in Spain (1999) 0.00
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    Abstract
    This paper reviews 17 years of research in Library and Information Science in Spain. The total production of 2 major Spanish periodical publications were analyzed from 1977-1994 according to productivity variables and thematic content
    Source
    Journal of the American Society for Information Science. 50(1999) no.8, S.675-680
  20. Nisonger, T.E.: JASIS and library and information science journal rankings : a review and analysis of the last half-century (1999) 0.00
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    Content
    Beitrag eines Themenheftes: The 50th Anniversary of the Journal of the American Society for Information Science. Pt.1: The Journal, its society, and the future of print
    Source
    Journal of the American Society for Information Science. 50(1999) no.11, S.1004-1019

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