Search (59 results, page 1 of 3)

  • × theme_ss:"Retrievalstudien"
  1. TREC: experiment and evaluation in information retrieval (2005) 0.03 
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    LCSH
    Text processing (Computer science) / Congresses
    Information storage and retrieval systems / Congresses
    Series
    Digital libraries and electronic publishing
    Subject
    Text processing (Computer science) / Congresses
    Information storage and retrieval systems / Congresses
  2. Smeaton, A.F.; Harman, D.: ¬The TREC experiments and their impact on Europe (1997) 0.02 
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  3. Hodges, P.R.: Keyword in title indexes : effectiveness of retrieval in computer searches (1983) 0.02 
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    Date
    14. 3.1996 13:22:21
    Source
    Special libraries. 74(1983) no.1, S. 56-60
  4. Kilgour, F.G.: Retrieval on information from computerized book texts (1989) 0.01 
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    Imprint
    Englewood, CO : Libraries Unlimited
  5. Keen, E.M.: Aspects of computer-based indexing languages (1991) 0.01 
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    Source
    Computers in libraries international 91. Proceedings of the 5th Annual Conference on Computers in Libraries, London, February 1991
  6. Johnson, K.E.: OPAC missing record retrieval (1996) 0.01 
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    Abstract
    Reports results of a study, conducted at Rhode Island University Library, to determine whether cataloguing records known to be missing from a library consortium OPAC database could be identified using the database search features. Attempts to create lists of bibliographic records held by other libraries in the consortium using Boolean searching features failed due to search feature limitations. Samples of search logic were created, collections of records based on this logic were assembled manually and then compared with card catalogue of the single library. Results suggest that use of the Boolean OR operator to conduct the broadest possible search could find 56.000 of the library's missing records that were held by other libraries. Use of the Boolean AND operator to conduct the narrowest search found 85.000 missing records. A specific library search made of the records of the most likely consortium library to have overlaid the single library's holdings found that 80.000 of the single library's missing records were held by a specific library
    Source
    Information technology and libraries. 15(1996) no.3, S.169-171
  7. Salampasis, M.; Tait, J.; Bloor, C.: Evaluation of information-seeking performance in hypermedia digital libraries (1998) 0.01 
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    Abstract
    Discusses current information retrieval methods based on recall (R) and precision (P) for evaluating information retrieval and examines their suitability for evaluating the performance of hypermedia digital libraries. Proposes a new quantitative evaluation methodology, based on the structural analysis of hypermedia networks and the navigational and search state patterns of information seekers. Although the proposed methodology retains some of the characteristics of R and P evaluation, it could be more suitable than them for measuring the performance of information-seeking environments where information seekers can utilize arbitrary mixtures of browsing and query-based searching strategies
  8. Blandford, A.; Adams, A.; Attfield, S.; Buchanan, G.; Gow, J.; Makri, S.; Rimmer, J.; Warwick, C.: ¬The PRET A Rapporter framework : evaluating digital libraries from the perspective of information work (2008) 0.01 
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    Abstract
    The strongest tradition of IR systems evaluation has focused on system effectiveness; more recently, there has been a growing interest in evaluation of Interactive IR systems, balancing system and user-oriented evaluation criteria. In this paper we shift the focus to considering how IR systems, and particularly digital libraries, can be evaluated to assess (and improve) their fit with users' broader work activities. Taking this focus, we answer a different set of evaluation questions that reveal more about the design of interfaces, user-system interactions and how systems may be deployed in the information working context. The planning and conduct of such evaluation studies share some features with the established methods for conducting IR evaluation studies, but come with a shift in emphasis; for example, a greater range of ethical considerations may be pertinent. We present the PRET A Rapporter framework for structuring user-centred evaluation studies and illustrate its application to three evaluation studies of digital library systems.
  9. Gilchrist, A.: Research and consultancy (1998) 0.01 
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    Abstract
    State of the art review of literature published about research and consultancy in library and information science (LIS). Issues covered include: scope and definitions of what constitutes research and consultancy; funding of research and development; national LIS research and the funding agencies; electronic libraries; document delivery; multimedia document delivery; the Z39.50 standard for client server computer architecture, the Internet and WWW; electronic publishing; information retrieval; evaluation and evaluation techniques; the Text Retrieval Conferences (TREC); the user domain; management issues; decision support systems; information politics and organizational culture; and value for money issues
  10. Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984) 0.01 
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    Date
    20.10.2000 12:22:23
  11. Tomaiuolo, N.G.; Parker, J.: Maximizing relevant retrieval : keyword and natural language searching (1998) 0.01 
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    Source
    Online. 22(1998) no.6, S.57-58
  12. Voorhees, E.M.; Harman, D.: Overview of the Sixth Text REtrieval Conference (TREC-6) (2000) 0.01 
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    Date
    11. 8.2001 16:22:19
  13. Dalrymple, P.W.: Retrieval by reformulation in two library catalogs : toward a cognitive model of searching behavior (1990) 0.01 
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    Date
    22. 7.2006 18:43:54
  14. Peters, T.A.; Kurth, M.: Controlled and uncontrolled vocabulary subject searching in an academic library online catalog (1991) 0.01 
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    Source
    Information technology and libraries. 10(1991), S.201-211
  15. Tillotson, J.: Is keyword searching the answer? (1995) 0.01 
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    Source
    College and research libraries. 56(1995) no.3, S.199-206
  16. Drabenstott, K.M.; Weller, M.S.: Improving personal-name searching in online catalogs (1996) 0.01 
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    Source
    Information technology and libraries. 15(1996) no.3, S.135-155
  17. Kilgour, F.: ¬An experiment using coordinate title word searches (2004) 0.01 
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    Abstract
    This study, the fourth and last of a series designed to produce new information to improve retrievability of books in libraries, explores the effectiveness of retrieving a known-item book using words from titles only. From daily printouts of circulation records at the Walter Royal Davis Library of the University of North Carolina at Chapel Hill, 749 titles were taken and then searched an the 4-million entry catalog at the library of the University of Michigan. The principal finding was that searches produced titles having personal authors 81.4% of the time and anonymous titles 91.5% of the time; these figures are 15 and 5%, respectively, lower than the lowest findings presented in the previous three articles of this series (Kilgour, 1995; 1997; 2001).
  18. Schultz Jr., W.N.; Braddy, L.: ¬A librarian-centered study of perceptions of subject terms and controlled vocabulary (2017) 0.01 
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    Abstract
    Controlled vocabulary and subject headings in OPAC records have proven to be useful in improving search results. The authors used a survey to gather information about librarian opinions and professional use of controlled vocabulary. Data from a range of backgrounds and expertise were examined, including academic and public libraries, and technical services as well as public services professionals. Responses overall demonstrated positive opinions of the value of controlled vocabulary, including in reference interactions as well as during bibliographic instruction sessions. Results are also examined based upon factors such as age and type of librarian.
  19. McJunkin, M.C.: Precision and recall in title keyword searching (1995) 0.00 
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    Source
    Information technology and libraries. 14(1995) no.3, S.161-171
  20. Cavanagh, A.K.: ¬A comparison of the retrieval performance of multi-disciplinary table-of-contents databases with conventional specialised databases (1997) 0.00 
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    Source
    Australian academic and research libraries. 28(1997) no.2, S.142-154

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