Search (104 results, page 1 of 6)

  • × theme_ss:"OPAC"
  • × year_i:[1980 TO 1990}
  1. Walker, S.: ¬The free language approach to online catalogues (1985) 0.06 
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    Source
    Keyword catalogues and the free language approach. Ed.: P. Bryant
  2. Graham, T.: ¬The free language approach to online catalogues : the user (1985) 0.04 
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    Source
    Keyword catalogues and the free language approach. Ed.: Ph. Bryant
  3. Deschâtelets, G.: ¬The three languages theory in information retrieval (1986) 0.04 
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    Abstract
    To an overwhelming extent, storage and retrieval systems were designed for information intermediaries who were specialists in formal, controlled documentation languages (e.g. classification systems, indexing languages) and who were then trained to utilize the query language of each retrieval system. However, with the advent of the microcomputer, there now exists, in the information retrieval industry, an obvious will to tackle both the professional and the personal information markets, as evidences by their more sophisticated yet more user-friendly systems and by the design and marketing of all sorts of interface software (front-end, gateway, intermediary). In order to make full advantage of these systems, the user must be able to master three different languages: the natural language of the discipline, the indexing language, and the system's query language. The author defines and characterizes each of these languages and identifies their issues and trends in the IR cycle and specifically in public online search services. Finally he proposes a theoretical model for the analysis of IR languages and suggests a few research avenues
  4. Document retrieval systems (1988) 0.03 
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    Content
    Entählt u.a. die Beiträge: CLEVERDON, C.: Optimizing convenient online access to bibliographic databases; SALTON, G.: Automatic indexing and abstracting; HARTER, S.P.: Statistical approaches to automatic indexing; WALKER, S.: Improving subject access painlessly: recent work on the OKAPI online catalogue projects; SPARCK JONES, K.: A statistical interpretation of term specifity and its application in retrieval; CROFT, W.B. u. D.J. HARPER: Using probabilistic model of document retrieval without relevance information; BERSTEIN, L. u. R.E. WILLIAMSON: Testing of a natural language retrieval system for a full text knowledge base; FRAKES, W.B.: Term conflation for information retrieval; PORTER, M. u. V. GALPIN: Relevance feedback in a public access catalogue for a research library: MUSCAT at the Scott Polar Institute; SALTON, G. u. M.J. McGILL: The SMART and SIRE experimental retrieval systems; BRZOZOWSKI, J.P. MASQUERADE: searching full text of abstracts using automatic indexing; DOSZKOCS, T.E.: CITE NLM: Natural-language searching in an online catalog
  5. Rolland-Thomas, P.; Mercure, G.: Subject access in a bilingual online catalogue (1989) 0.03 
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    Abstract
    Canadian library records, bilingual by statute, are created according to a common set of rules and standards. Subject access to the catalogue remains language dependent. Even searches by classification in some OPACs rely first on an alphabetical index as an entering key. Fully bilingual OPACs with authority control and reciprocal references in one file have yet to appear. Thus far the Canadian Workplace Automation Research Center has produced ISIR/SIRI with an online bilingual thesaurus. The National Library of Canada has developed withh DOBIS a bilingual system providing automatic linkages between records and authority files. But true bilingual searching (a search in one language retrieving records in both languages) could be achieved by a built-in automatic translation module. Total accommodation of diacritical marks by terminal keyboards and display monitors is also a challenge to be met.
  6. Jouguelet, S.: Subject access in online catalogs : developments in France (1989) 0.02 
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    Abstract
    Contribution to a thematic issue devoted to subject control in on-line catalogues. In contrast with data base searching, the use of an OPAC is direct, without intermediaries and without prior training. This tool allows decentralised information access, 1st in the library and now directly from users' homes. In France MINITEL has made distributed access possible. Outlines the French authority list, RAMEAU (Répertoire d'Autorité Matière Encyclopédique et Alphabétique Unifié) giving details or its users and describes searching the system and the search software, ALEXIS. ALEXIS can serve as an example of the direction to take since it was developed within the perspective of natural language queries.
  7. Mischo, W.H.; Lee, J.: End-user searching in bibliographic databases (1987) 0.02 
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    Abstract
    The growing interest in end user or direct patron access to on-line bibliographic databases is reviewed with references to online catalogues, databases, and CD-ROMs. The literature of end user searching is surveyed with notes on: user training, software search aids, end user services in libraries: characterisation of end user searches; the role of librarians; and CD-ROMs as end user media
    Source
    Annual review of information science and technology. 22(1987), S.227-263
  8. Carlyle, A.: Matching LCSH and user vocabulary in the library catalog (1989) 0.02 
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    Abstract
    Central to subject searching is the match between user vocabulary and the headings from Library of Congress Subject-Headings (LCSH) used in a library catalog. This paper evaluates previous matching studies, proposes a detailed list of matching categories, and tests LCSH in a study using these categories. Exact and partial match categories are defined for single LCSH and multiple LCSH matches to user expressions. One no-match category is included. Transaction logs from ORION, UCLA's online Information system, were used to collect user expressions for a comparison of LCSH and user language. Results show that single LCSH headings match user expressions exactly about 47% of the time; that single subject heading matches, including exact matches, comprise 74% of the total; that partial matches, to both single and multiple headings, comprise about 21% of the total; and that no match occurs 5% of the time.
  9. Hancock, M.: Subject searching behaviour at the library catalogue and at the shelves : implications for online interactive catalogues (1987) 0.02 
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    Abstract
    Searching behaviour in a university library is studied using a holistic approach, encompassing the use of bibliographic tools and shelf browsing. The present study is designed as the first half of a 'before and after' study to permit the evaluation of the impact of a future online catalogue on users' searching behaviour. A combined methodology was devised: searchers were encouraged to talk aloud during their search, and this information, together with some probing and real time expert interpretation, enabled the experimente to record the searching activity on a highly structured observation form. The study reveals the extent of subject searching activity, and suggests that this may have been underestimated in previous studies. The analysis of expressed topics, search formulation strategy and documents retrieved reveals the adaptive nature of the subject searching process, whereby the user adapts to the structure of the available tools. The information retrieval task in a traditional library system is tailored by the system to a single, one dimensional, sequential process. It is suggested that a major obstacle to subject searching effectiveness may lie in the lack of interaction between the different possible approaches in the searching process: the indexing language, the classification, and the titles. It is to be hoped that a future online searching environment will encourage a more truly interactive approach to subject searching.
  10. Kaske, N.K.: ¬A comparative study of subject searching in an OPAC among branch libraries of a university library system (1988) 0.02 
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    Abstract
    The degree of variability in the percentage of subject searching in an online public access catalog (OPAC) among branch libraries of one university was studied. A full semester's worth of transactions was analyzed, not sampled. The time units used were hour of the day, day of the week, and week of the semester. The findings show that subject searching varies from a low of 22% to a high of 74% over the hours of a day. Variability for the days of the week ranged from 17% to 64%, and for the weeks of the semester variability ranged from 12% to 70%. Valuable management information on the utilization of the OPAC within each brach library and among all the branch libraries is provided through numerous charts and graphs.
  11. Riesthuis, G.J.A.; Colenbrander-Dijkman, A.-M.: Subject access to central catalogues : incompatibility issues of library classification systems and subject headings in subject cataloguing (1986) 0.02 
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    Abstract
    Traditional subject cataloguing hampers subject retrieval in central catalogues, because of the lack of a common indexing and retrieval language in these catalogues. This study investigates the possibilities to use the various individual subject access systems, present in the catalogues, for subject access. A search procedure based on 'citation pearl growing' and 'user relevance feedback', which can be applied in a public access interface to central data bases, has been developed. From an experiment it can be concluded, that automated expert assistance, provided with a search strategy, will improve search response for unexperienced searchers. It reduces the number of zero-hits and increases the number of relevant items retrieved
  12. Porter, M.; Galpin, V.: Relevance feedback in a public access catalogue for a research library : Muscat at the Scott Polar Research Institute (1988) 0.02 
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    Abstract
    This paper reports on the successful introduction of a sophisticated online catalogue system at the library of the Scott Polar Research Institute, Cambridge, using the Muscat program package. The system provides to both end-users and library staff a choice between boolean searching on keywords and access using relevance feedback based on free text in English, mixed with UDC classification numbers. The system is implemented on an IBM 3084 computer. Significant benefits from the application of relevance feedback are reported with 10,000 records on file.
    Source
    Program. 22(1988), S.1-20
  13. Striedieck, S.: Online catalog maintenance : the OOPS command in LIAS (1985) 0.02 
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    Abstract
    LIAS, the Pennsylvania State University's (Penn State) integrated interactive online system, provides for messaging by the user to inform library staff of errors found in bibliographic records. The message is sent by use of the OOPS command, and results in a printout which is used by processing staff for online catalog maintenance. This article describes LIAS, the use of the OOPS command, the processing of the resulting OOPS reports, an assessment of the effect of its use, and some speculation on the expansion of the LIAS message system for use in catalog maintenance.
    Date
    7. 1.2007 13:22:30
  14. Doszkocs, T.E.: CITE NLM: Natural language searching in an online catalog (1983) 0.02 
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  15. Nohr, H.: Subject access in german-language OPACs : a survey (1989) 0.02 
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  16. Goossens, P.: Across the language barriers in multinational OPACs (1987) 0.01 
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  17. Walker, S.: Improving subject access painlessly : recent work on the Okapi online catalogue projects (1988) 0.01 
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    Source
    Program. 22(1988), S.21-31
  18. Hug, H.; Nöthiger, R.: ETHICS: an online public access catalogue at ETH-Bibliothek, Zürich (1988) 0.01 
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    Source
    Program. 22(1988), S.133-142
  19. Mitev, N.; Hildreth, C.R.: ¬Les catalogues interactifs en Grande-Bretagne et aux Etats-Unis (1989) 0.01 
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    Source
    Bulletin des bibliothèques de France. 34(1989) no.1, S.22-47
  20. Dwyer, J.R.: ¬The road to access & the road to entropy (1987) 0.01 
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Authors

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