Search (42 results, page 1 of 3)

  • × language_ss:"e"
  • × theme_ss:"Informetrie"
  • × year_i:[1990 TO 2000}
  1. Quoniam, L.: Bibliometric law used for information retrieval (1998) 0.05
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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)
    Footnote
    Paper presented at the 6th conference of the International Society for Scientometrics and Informetrics, Jerusalem, 16-19 June 1997
  2. Ding, Y.: Visualization of intellectual structure in information retrieval : author cocitation analysis (1998) 0.02
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    Abstract
    Reports results of a cocitation analysis study from the international retrieval research field from 1987 to 1997. Data was taken from Social SciSearch, via Dialog, and the top 40 authors were submitted to author cocitation analysis to yield the intellectual structure of information retrieval. The resulting multidimensional scaling map revealed: identifiable author groups for information retrieval; location of these groups with respect to each other; extend of centrality and peripherality of authors within groups, proximities of authors within groups and across group boundaries; and the meaning of the axes of the map. Factor analysis was used to reveal the extent of the authors' research areas and statistical routines included: ALSCAL; clustering analysis and factor analysis
  3. Harter, S.P.: Colinked descriptors (1993) 0.02
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    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
  4. First International Conference on the Evaluation of Research Technology and Development (1995) 0.02
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    Content
    Issue comprising papers presented at the First International Conference on the Evaluation of Research Technology and Development, Thessaloniki, 26-28 Apr 95
  5. Egghe, L.; Rousseau, R.: Duality in information retrieval and the hypegeometric distribution (1997) 0.02
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    Abstract
    Asserts that duality is an important topic in informetrics, especially in connection with the classical informetric laws. Yet this concept is less studied in information retrieval. It deals with the unification or symmetry between queries and documents, search formulation versus indexing, and relevant versus retrieved documents. Elaborates these ideas and highlights the connection with the hypergeometric distribution
  6. Proceedings of the sixth conference of the International Society for Scientometrics and Informetrics (1997) 0.02
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    Footnote
    Issue devoted to the proceedings of the 6th conference of the International Society for Scientometrics and Informetrics, Jerusalem, 16-19 June 1997
  7. Proceedings of the sixth conference of the International Society for Scientometrics and Informetrics (1998) 0.02
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    Footnote
    Issue devoted to the proceedings of the 6th conference of the International Society for Scientometrics and Informetrics, Jerusalem, 16-19 June 1997
  8. Garfield, E.: From citation indexes to informetrics : is the tail now wagging the dog? (1998) 0.02
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    Abstract
    Provides a synoptic review and history of citation indexes and their evolution into research evaluation tools including a discussion of the use of bibliometric data for evaluating US institutions (academic departments) by the National Research Council (NRC). Covers the origin and uses of periodical impact factors, validation studies of citation analysis, information retrieval and dissemination (current awareness), citation consciousness, historiography and science mapping, Citation Classics, and the history of contemporary science. Illustrates the retrieval of information by cited reference searching, especially as it applies to avoiding duplicated research. Discusses the 15 year cumulative impacts of periodicals and the percentage of uncitedness, the emergence of scientometrics, old boy networks, and citation frequency distributions. Concludes with observations about the future of citation indexing
  9. Bar-Ilan, J.: On the overlap, the precision and estimated recall of search engines : a case study of the query 'Erdös' (1998) 0.02
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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
  10. Su, Y.; Han, L.-F.: ¬A new literature growth model : variable exponential growth law of literature (1998) 0.02
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    Date
    22. 5.1999 19:22:35
  11. Informetrics '91 : selected papers from the 3rd International Conference on Bibliometrics, 9-12 Aug. 1991, Bangalore (1993) 0.02
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  12. Proceedings of the Fourth International Conference on Science and Technology Indicators : performance at the national, regional and institutional level, Antwerp, Belgium, October 5-7, 1995 (1996) 0.02
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  13. Proceedings of the Fifth Biennial Conference of the International Society for Scientometrics and Informetrics (1995) 0.02
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  14. 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)
  15. Bookstein, A.: Informetric distributions : I. Unified overview (1990) 0.02
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    Date
    22. 7.2006 18:55:29
  16. Bookstein, A.: Informetric distributions : II. Resilience to ambiguity (1990) 0.02
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    Date
    22. 7.2006 18:55:55
  17. Harter, S.P.; Cheng, Y.-R.: Colinked descriptors : improving vocabulary selection for end-user searching (1996) 0.01
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    Abstract
    This article introduces a new concept and technique for information retrieval called 'colinked descriptors'. Borrowed from an analogous idea in bibliometrics - cocited references - colinked descriptors provide a theory and method for identifying search terms that, by hypothesis, will be superior to those entered initially by a searcher. The theory suggests a means of moving automatically from 2 or more initial search terms, to other terms that should be superior in retrieval performance to the 2 original terms. A research project designed to test this colinked descriptor hypothesis is reported. The results suggest that the approach is effective, although methodological problems in testing the idea are reported. Algorithms to generate colinked descriptors can be incorporated easily into system interfaces, front-end or pre-search systems, or help software, in any database that employs a thesaurus. The potential use of colinked descriptors is a strong argument for building richer and more complex thesauri that reflect as many legitimate links among descriptors as possible
  18. Pillai, C.V.R.; Girijakumari, S.: Widening horizons of informetrics (1996) 0.01
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    Abstract
    Traces the origin and development of informetrics in the field of library and information science. 'Informatrics' is seen as a generic term to denote studies in which quantitative methods are applied. Discusses various applications of informetrics including citation analysis; impact factor; absolescence and ageing studies; bibliographic coupling; co-citation; and measurement of information such as retrieval performance assessment. Outlines recent developments in informetrics and calls for attention to be paid to the quality of future research in the field to ensure its reliability
  19. Wormell, I.: Online searching is like gold-washing (1998) 0.01
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    Abstract
    Draws attention to the vast potential of online information databases and to the many new possibilities which advanced search techniques offer those who want to explore databases. Looks at informetrics, an emerging subfield in information science, which is based on the combination of advanced information retrieval and quantitative studies of information flow. Describes 3 studies carried out at the Centre for Information studies at the Royal School of Library and Information Science in Copenhagen, Denmark, to illustrate the scope and nature of informetric analysis
  20. Wouters, P.: ¬The signs of science (1998) 0.01
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    Footnote
    Paper presented at the 6th conference of the International Society for Scientometrics and Informetrics, Jerusalem, 16-19 June 1997