-
Walker, S.; Jones, R.M.: Improving subject retrieval in online catalogues : T.1: Stemming, automatic spelling correction and cross-reference tables (1987)
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- Theme
- Verbale Doksprachen im Online-Retrieval
-
Walker, S.: Views on classification as a search tool on a computer (1991)
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- Abstract
- Classification numbers and shelf marks may be useful in online searching. Ways of using classification in online searching include: direct classification searching; use of classification as linking devices or pivots; and direct or indirect searching of classification schedules and indexes. Discusses each of these techniques, mainly in the context of library OPAC searching although they may be applied to other types of online retrieval systems. The use of classification numbers as pivots enabling online searchers to retrieve related references by means of automation searching of identical or related classification numbers is reviewed with reference to the OKAPI project; BLCMP project and the DDC online project
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Walker, S.: ¬The Okapi online catalogue research projects (1989)
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- Date
- 16. 8.1998 11:22:08
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.424-435.
- Source
- The Online catalogue: development and directions. Ed.: C. Hildreth
-
Walker, S.: Improving subject access painlessly : recent work on the Okapi online catalogue projects (1988)
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- Source
- Program. 22(1988), S.21-31
-
Mitev, N.N.; Walker, S.: Information retrieval aids in an online public access catalogue : automatic intelligent search sequencing (1985)
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- Source
- Advances in intelligent retrieval: Proc. of a Conf. ... Wadham College, Oxford, 16.-17.4.1985. Intr.: M. Rowbottom
-
Walker, S.; DeVere, R.: Improving subject retrieval in online catalogues : T.2: Relevance feedback and query expansion (1990)
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- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Walker, S.: Subject access in online catalogues (1991)
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- Abstract
- Discusses some of the methods of subject access to on-line catalohues (OPACs) and argues that none are entirley satisfactory. Describes 2 methods for improving subject access: best match searching; and automatic query expansion application and discusses their feasibility. Mentions emerging application standards for information retrieval and concludes that existing standards are incompatible with most methods for improving standards
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Hancock-Beaulieu, M.; Walker, S.: ¬An evaluation of automatic query expansion in an online library catalogue (1992)
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- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Walker, S.: Ease of use in online catalogues : a plea for the user (1986)
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- Source
- Online public access to library files. Ed.: J. Kinsella
-
Walker, S.: Okapi : Evaluating and enhancing an experimental online catalog (1987)
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-
Walker, S.: ¬The free language approach to online catalogues (1985)
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-
Walker, S.: ¬Der Mensch-Maschine-Dialog bei Online-Benutzer-Katalogen (1987)
0.01
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-
Robertson, S.E.; Walker, S.: Some simple effective approximations to the 2-Poisson molde for probabilisitc weighted retrieval (1979)
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- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.345-453.
-
Robertson, S.E.; Walker, S.; Beaulieu, M.: Laboratory experiments with Okapi : participation in the TREC programme (1997)
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- Abstract
- Briefly reviews the history of laboratory testing of information retrieval systems, focusing on the idea of a general purpose test collection of documents, queries and relevance judgements. Gives an overview of the methods used in TREC (Text Retrieval Conference) which is concerned with an ideal test collection, and discusses the Okapi team's participation in TREC. Also discusses some of the issues surrounding the difficult problem of interactive evaluation in TREC. The reconciliation of the requirements of the laboratory context with the concerns of interactive retrieval has a long way to go
- Footnote
- Contribution to a thematic issue on Okapi and information retrieval research
-
Sparck Jones, K.; Walker, S.; Robertson, S.E.: ¬A probabilistic model of information retrieval : development and comparative experiments - part 1 (2000)
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Sparck Jones, K.; Walker, S.; Robertson, S.E.: ¬A probabilistic model of information retrieval : development and comparative experiments - part 2 (2000)
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Robertson, S.E.; Walker, S.; Beaulieu, M.M.; Gatford, M.; Payne, A.: Okapi at TREC-4 (1996)
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- Source
- The Fourth Text Retrieval Conference (TREC-4). Ed.: K. Harman
-
Beaulieu, M.M.; Gatford, M.; Huang, X.; Robertson, S.E.; Walker, S.; Williams, P.: Okapi an TREC-5 (1997)
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- Source
- The Fifth Text Retrieval Conference (TREC-5). Ed.: E.M. Voorhees u. D.K. Harman
-
Mitev, N.N.; Venner, G.M.; Walker, S.: Designing an online public access catalogue : OKAPI, a catalogue on a local area network (1985)
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Robertson, S.E.; Walker, S.; Hancock-Beaulieu, M.M.: Large test collection experiments of an operational, interactive system : OKAPI at TREC (1995)
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- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
