Search (23 results, page 1 of 2)

  • × theme_ss:"Retrievalstudien"
  • × year_i:[1990 TO 2000}
  1. Gilchrist, A.: Research and consultancy (1998) 0.10
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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
  2. Lespinasse, K.: TREC: une conference pour l'evaluation des systemes de recherche d'information (1997) 0.06
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    Abstract
    TREC ia an annual conference held in the USA devoted to electronic systems for large full text information searching. The conference deals with evaluation and comparison techniques developed since 1992 by participants from the research and industrial fields. The work of the conference is destined for designers (rather than users) of systems which access full text information. Describes the context, objectives, organization, evaluation methods and limits of TREC
    Date
    1. 8.1996 22:01:00
  3. Ellis, D.: Progress and problems in information retrieval (1996) 0.05
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    Date
    26. 7.2002 20:22:46
    Imprint
    London : Library association publishing
  4. Hirsh, S.G.: Children's relevance criteria and information seeking on electronic resources (1999) 0.03
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    Abstract
    This study explores the relevance criteria and search strategies elementary school children applied when searching for information related to a class assignment in a school library setting. Students were interviewed on 2 occasions at different stages of the research process; field observations involved students thinking aloud to explain their search proceses and shadowing as students moved around the school library. Students performed searches on an online catalog, an electronic encyclopedia, an electronic magazine index, and the WWW. Results are presented for children selecting the topic, conducting the search, examining the results, and extracting relevant results. A total of 254 mentions of relevance criteria were identified, including 197 references to textual relevance criteria that were coded into 9 categories and 57 references to graphical relevance criteria that were coded into 5 categories. Students exhibited little concern for the authority of the textual and graphical information they found, based the majority of their relevance decisions for textual material on topicality, and identified information they found interesting. Students devoted a large portion of their research time to find pictures. Understanding the ways that children use electronic resources and the relevance criteria they apply has implications for information literacy training and for systems design
  5. Marchionini, G.: Information seeking in full-text end-user-oriented search system : the roles of domain and search expertise (1993) 0.02
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    Abstract
    Presents a study that identifies and examines the roles that information-seeking expertise and domain expertise play in information seeking in full text, and user search systems. This forms part of an investigation to characterise information seeking and to determine how it is affected by interactive electronic access to primary information. Distinguishes between the approaches of search experts and domain experts. Makes recommendations for systems design
  6. Evans, J.E.: Some external and internal factors affecting users of interactive information systems (1996) 0.02
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    Abstract
    This contribution reports the results of continuing research in human-information system interactions. Following training and experience with an electronic information retrieval system novice and experienced subject groups responded to questions ranking their value assessments of 7 attributes of information sources in relation to 15 factors describing the search process. In general, novice users were more heavily influenced by the process factors (negative influences) than by the positive attributes of information qualities. Experienced users, while still concerned with process factors, were more strongly influenced by the qualitative information attributes. The specific advantages and contributions of this research are several: higher dimensionality of measured factors and attributes (15 x 7); higher granularity of analysis using a 7 value metric in a closed-end Likert scale; development of bi-directional, firced-choice influence vectors; and a larger sample size (N=186) than previously reported in the literature
  7. Cavanagh, A.K.: ¬A comparison of the retrieval performance of multi-disciplinary table-of-contents databases with conventional specialised databases (1997) 0.02
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    Abstract
    In an endeavour to compare retrieval performance and periodical overlap in a biological field, the same topic was searched on 5 Table of Contents (ToC) databases and 3 specialised biological databases. Performance was assessed in terms of precision and recall. The ToC databases in general had higher precision in that most material found was relevant. They were less satisfactory in recall where some located fewer than 50% of identified high relevance articles. Subject specific databases had overall better recall but lower precision with many more false drops and items of low relevance occuring. These differences were associated with variations in indexing practice and policy and searching capabilities of the various databases. In a further comparison, it was found that the electronic databases, as a group, identified only 75% of the articles known from independent source to have been published in the field
  8. Bodoff, D.; Kambil, A.: Partial coordination : II. A preliminary evaluation and failure analysis (1998) 0.02
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    Abstract
    Partial coordination is a new method for cataloging documents for subject access. It is especially designed to enhance the precision of document searches in online environments. This article reports a preliminary evaluation of partial coordination that shows promising results compared with full-text retrieval. We also report the difficulties in empirically evaluating the effectiveness of automatic full-text retrieval in contrast to mixed methods such as partial coordination which combine human cataloging with computerized retrieval. Based on our study, we propose research in this area will substantially benefit from a common framework for failure analysis and a common data set. This will allow information retrieval researchers adapting 'library style'cataloging to large electronic document collections, as well as those developing automated or mixed methods, to directly compare their proposals for indexing and retrieval. This article concludes by suggesting guidelines for constructing such as testbed
  9. Tomaiuolo, N.G.; Parker, J.: Maximizing relevant retrieval : keyword and natural language searching (1998) 0.02
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    Source
    Online. 22(1998) no.6, S.57-58
  10. Dalrymple, P.W.: Retrieval by reformulation in two library catalogs : toward a cognitive model of searching behavior (1990) 0.02
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    Date
    22. 7.2006 18:43:54
  11. Allan, J.; Callan, J.P.; Croft, W.B.; Ballesteros, L.; Broglio, J.; Xu, J.; Shu, H.: INQUERY at TREC-5 (1997) 0.01
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    Date
    27. 2.1999 20:55:22
  12. Ng, K.B.; Loewenstern, D.; Basu, C.; Hirsh, H.; Kantor, P.B.: Data fusion of machine-learning methods for the TREC5 routing tak (and other work) (1997) 0.01
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    Date
    27. 2.1999 20:59:22
  13. Sanderson, M.: ¬The Reuters test collection (1996) 0.01
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    Source
    Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
  14. ¬The Fifth Text Retrieval Conference (TREC-5) (1997) 0.01
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    Abstract
    Proceedings of the 5th TREC-confrerence held in Gaithersburgh, Maryland, Nov 20-22, 1996. Aim of the conference was discussion on retrieval techniques for large test collections. Different research groups used different techniques, such as automated thesauri, term weighting, natural language techniques, relevance feedback and advanced pattern matching, for information retrieval from the same large database. This procedure makes it possible to compare the results. The proceedings include papers, tables of the system results, and brief system descriptions including timing and storage information
  15. Pemberton, J.K.; Ojala, M.; Garman, N.: Head to head : searching the Web versus traditional services (1998) 0.01
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    Source
    Online. 22(1998) no.3, S.24-26,28
  16. Smithson, S.: Information retrieval evaluation in practice : a case study approach (1994) 0.01
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    Abstract
    The evaluation of information retrieval systems is an important yet difficult operation. This paper describes an exploratory evaluation study that takes an interpretive approach to evaluation. The longitudinal study examines evaluation through the information-seeking behaviour of 22 case studies of 'real' users. The eclectic approach to data collection produced behavioral data that is compared with relevance judgements and satisfaction ratings. The study demonstrates considerable variations among the cases, among different evaluation measures within the same case, and among the same measures at different stages within a single case. It is argued that those involved in evaluation should be aware of the difficulties, and base any evaluation on a good understanding of the cases in question
  17. Blair, D.C.: STAIRS Redux : thoughts on the STAIRS evaluation, ten years after (1996) 0.01
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    Source
    Journal of the American Society for Information Science. 47(1996) no.1, S.4-22
  18. Losee, R.M.: Determining information retrieval and filtering performance without experimentation (1995) 0.01
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    Date
    22. 2.1996 13:14:10
  19. Brown, M.E.: By any other name : accounting for failure in the naming of subject categories (1995) 0.01
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    Date
    2.11.1996 13:08:22
  20. Iivonen, M.: Consistency in the selection of search concepts and search terms (1995) 0.01
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    Abstract
    Considers intersearcher and intrasearcher consistency in the selection of search terms. Based on an empirical study where 22 searchers from 4 different types of search environments analyzed altogether 12 search requests of 4 different types in 2 separate test situations between which 2 months elapsed. Statistically very significant differences in consistency were found according to the types of search environments and search requests. Consistency was also considered according to the extent of the scope of search concept. At level I search terms were compared character by character. At level II different search terms were accepted as the same search concept with a rather simple evaluation of linguistic expressions. At level III, in addition to level II, the hierarchical approach of the search request was also controlled. At level IV different search terms were accepted as the same search concept with a broad interpretation of the search concept. Both intersearcher and intrasearcher consistency grew most immediately after a rather simple evaluation of linguistic impressions