Search (69 results, page 2 of 4)

  • × theme_ss:"Klassifikationssysteme im Online-Retrieval"
  • × year_i:[1990 TO 2000}
  1. Geißelmann, F.: ¬Die Online-Version der Regensburger Verbundklassifikation (1997) 0.00 
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    Source
    Information und Dokumentation: Qualität und Qualifikation. Deutscher Dokumentartag 1997, Universität Regensburg, 24.-26.9.1997. Hrsg.: M. Ockenfeld u. G.J. Mantwill
  2. Users Council urges continued emphasis on CORC project (1999) 0.00 
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    Theme
    Information Gateway
  3. Woods, E.W.; IFLA Section on classification and Indexing and Indexing and Information Technology; Joint Working Group on a Classification Format: Requirements for a format of classification data : Final report, July 1996 (1996) 0.00 
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  4. Gödert, W.: ¬Die Dezimalklassifikation im Online-Retrieval (1990) 0.00 
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    Abstract
    Considers some structural features of UDC which may be of some importance to on-line information retrieval with synthesised UDC notations
  5. Carlyle, A.: Exploring bibliographic classification in new environments (1997) 0.00 
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    Imprint
    Medford, NJ : Information Today
  6. Järvelin, K.; Niemi, T.: Deductive information retrieval based on classifications (1993) 0.00 
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    Abstract
    Modern fact databses contain abundant data classified through several classifications. Typically, users msut consult these classifications in separate manuals or files, thus making their effective use difficult. Contemporary database systems do little support deductive use of classifications. In this study we show how deductive data management techniques can be applied to the utilization of data value classifications. Computation of transitive class relationships is of primary importance here. We define a representation of classifications which supports transitive computation and present an operation-oriented deductive query language tailored for classification-based deductive information retrieval. The operations of this language are on the same abstraction level as relational algebra operations and can be integrated with these to form a powerful and flexible query language for deductive information retrieval. We define the integration of these operations and demonstrate the usefulness of the language in terms of several sample queries
    Source
    Journal of the American Society for Information Science. 44(1993) no.10, S.557-578
  7. Kwasnik, B.H.: ¬The role of classification in knowledge representation (1999) 0.00 
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    Source
    Library trends. 48(1999) no.1, S.22-47
  8. Buxton, A.B.: UDC in online systems (1991) 0.00 
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    Source
    Standards for the international exchange of bibliographic information: papers presented at a course held at the School of Library, Archive and Information Studies, University College, London, 3-18 August 1990. Ed.: I.C. McIlwaine
  9. Chan, L.M.: ¬The Library of Congress Classification System in an online environment (1990) 0.00 
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    Footnote
    Paper presented at the 2nd Annette Lewis Phinazee Symposium on Classification as an enhancement of intellectual access to information in an online environment, held at the School of Library and Information Sciences, North Carolina Central University, Durham, North Carolina.
  10. Frost, C.O.: ¬The University of Michigan School of Information Art Image Browser : designing and testing a model for image retrieval (1996) 0.00 
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    Abstract
    A team at the University of Michigan School of Information designed, implemented and is evaluating a WWW-based experimental system which uses classification to facilitate browsing of art images. The research team built a database of approximately 3.000 digitized images from Art History to determine if classification can be used for retrieving images from a digital database in a networked environment. A key premise in this research is that browsing can serve an important role in retrieving image information. The system was evaluated in controlled tests and through a questionnaire available to WWW users
  11. Pollitt, A.S.: ¬The key role of classification and indexing in view-based searching (1998) 0.00 
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    Abstract
    The application of classification schemes and thesauri to improve online information retrieval can be traced back to the beginnings of online searching itself, but the true potential for using knowledge structures in the user interface has yet to be realized. View-based searching seeks to exploit the classified arrangements in thesauri and existing classification schemes to improve the performance of such systems. HIBROWSE for EMBASE is a system which demonstrates the power of applying an approach to information retrieval which is strongly related to faceted classification. It does this by employing a point a click user interface with mutually constraining views utilising knowledge structure hierarchies for both query specification and the presentation of results. The relevance of this approach to library OPACs is discussed in the context of the digital library, concluding that out legacy of research in classification and indexing is more relevant than ever in the design of systems to cope with the problems of information access
  12. Allen, R.B.: ¬Two digital library interfaces that exploit hierarchical structure (1995) 0.00 
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    Abstract
    Two library classification system interfaces have been implemented for navigating and searching large collections of document and book records. One interface allows the user to browse book records organized by the DDC hierarchy. A Book Shelf display reflects the facet position in the classification hierarchy during browsing, and it dynamically updates to reflect search hits and attribute selections. The other interface provides access to records describing computer science documents classified by the ACM Computing Reviews (CR) system. The CR classification system is a type of faceted classification in which documents can appear at several points in the hierarchy. These two interfaces demonstrate that classification structure can be effectively utilized for organizing digital libraries and, potentiall, collections of Internet-wide information services
    Footnote
    Auch unter: http:// awi.aw.com/DAGS95/Papers/allen.html. - http://superbook.bellcore.com/PAPERS/RBA/LIBR/libr.html - Vortrag anläßlich: DAGS95: Electronic publishing and the information superhighway.
    Source
    DAGS95: Electronic publishing and the information superhighway, May 30 - June, 2, Boston. Proceedings
  13. Zimmermann, H.H.: Zur Struktur und Nutzung von Klassifikationen im Bibliothekswesen : Beispiel der Klassifikation der Deutschen Bibliothek und der sog. Niederländischen Basiskklassifikation (1994) 0.00 
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    Source
    Mehrwert von Information - Professionalisierung der Informationsarbeit: Proceedings des 4. Internationalen Symposiums für Informationswissenschaft (ISI'94), Graz, 2.-4. November 1994. Hrsg.: W. Rauch u.a
  14. Pocock, H.: Classification schemes : development and survival (1997) 0.00 
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    Abstract
    Discusses the development of classification schemes and their ability to adapt to and accomodate changes in the information world in order to survive. Examines the revision plans for the major classification schemes and the future use of classification search facilities for OPACs
  15. Day, M.; Koch, T.: ¬The role of classification schemes in Internet resource description and discovery : DESIRE - Development of a European Service for Information on Research and Education. Specification for resource description methods, part 3 (1997) 0.00 
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  16. Riesthuis, G.J.A.: Zoeken met woorden : hergebruik van onderwerpsontsluiting (1998) 0.00 
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    Abstract
    Theory of information languages. Decomposition of UDC-notations
  17. Aluri, R.D.; Kemp, A.; Boll, J.J.: Subject analysis in online catalogs (1991) 0.00 
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    LCSH
    Information retrieval
    Subject
    Information retrieval
  18. McAllister-Harper, D.: Dewey Decimal Classification in the online environment : a study of libraries in North Carolina (1990) 0.00 
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    Footnote
    Paper presented at the 2nd Annette Lewis Phinazee Symposium on Classification as an enhancement of intellectual access to information in an online environment, held at the School of Library and Information Sciences, North Carolina Central University, Durham, North Carolina.
  19. High, W.H.: Library of Congress Classification numbers as subject access points in computer-based retrieval (1990) 0.00 
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    Footnote
    Paper presented at the 2nd Annette Lewis Phinazee Symposium on Classification as an enhancement of intellectual access to information in an online environment, held at the School of Library and Information Sciences, North Carolina Central University, Durham, North Carolina.
  20. Liu, S.: Decomposing DDC synthesized numbers (1996) 0.00 
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    Abstract
    Much literature has been written speculating upon how classification can be used in online catalogs to improve information retrieval. While some empirical studies have been done exploring whether the direct use of traditional classification schemes designed for a manual environment is effective and efficient in the online environment, none has manipulated these manual classifications in such a w ay as to take full advantage of the power of both the classification and computer. It has been suggested by some authors, such as Wajenberg and Drabenstott, that this power could be realized if the individual components of synthesized DDC numbers could be identified and indexed. This paper looks at the feasibility of automatically decomposing DDC synthesized numbers and the implications of such decomposition for information retrieval. Based on an analysis of the instructions for synthesizing numbers in the main class Arts (700) and all DDC Tables, 17 decomposition rules were defined, 13 covering the Add Notes and four the Standard Subdivisions. 1,701 DDC synthesized numbers were decomposed by a computer system called DND (Dewey Number Decomposer), developed by the author. From the 1,701 numbers, 600 were randomly selected fo r examination by three judges, each evaluating 200 numbers. The decomposition success rate was 100% and it was concluded that synthesized DDC numbers can be accurately decomposed automatically. The study has implications for information retrieval, expert systems for assigning DDC numbers, automatic indexing, switching language development, enhancing classifiers' work, teaching library school students, and providing quality control for DDC number assignments. These implications were explored using a prototype retrieval system.

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  • d 7
  • i 1
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  • a 59
  • el 4
  • s 4
  • m 2
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