Search (166 results, page 2 of 9)

  • × theme_ss:"OPAC"
  • × year_i:[1980 TO 1990}
  1. Dixon, R.D.; Meyers, E.D.: Initial experience with an online catalog at the Boys Town Center Library (1982) 0.01 
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    Abstract
    In January of 1981, the Center for the Study of Youth Development initiated an online catalog of the holdings of its specialized library consisting of 10,000 monographs, journals, vertical file materials, etc. The present article discusses the reactions of the end-user or patron population to the resource. The background of the library automation project-including issues of cost-effectiveness, increased power, and user utility-is discussed in order to establish the initial goals of this activity. Attention is given to how the project was implemented; this includes a comparison of preliminary goals with what ultimately was delivered. The transition from a COM catalog to the online catalog required training of patrons (some of whom had little or no experience with a computer terminal), and only half of the Center staff participated in the initial training sessions. Preliminary patron behavior is reviewed, and an attempt to informally analyze both positive and negative experiences is offered. The initial experiences are summarized in a discussion of the user interface of the query portion of the online catalog software.
  2. Bates, M.J.: ¬An explanatory paradigm for online information retrieval (1986) 0.01 
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    Source
    Intelligent information systems for the information society. Proc. of the 6th Int, Research Forum in Information Science, Frascati, 16.-18.9.1985. Ed.: B.C. Brooks
  3. Nye, J.B.: User interaction with the authority structure of the online catalog : results of a survey (1988) 0.01 
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    Abstract
    A survey was conducted during 1987 to identify how online catalog users interact with various aspects of the catalog's authority control structure. Questionnaires were sent to major online catalog system vendors and to selected university libraries and networks known to have developed in-house online catalogs; additional copies were distributed to ACIG meeting participants during the ALA conference in San Francisco, June 1987. Twenty-one usable responses were received, twelve describing commercially available systems and nine from lacally developed systems.
  4. Jouguelet, S.: Subject access in online catalogs : developments in France (1989) 0.01 
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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.
  5. Card, S.: TOC/DOC at Caltech : Evolution of citation access online (1989) 0.01 
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    Abstract
    In Nov. 1988 the Caltech Library made available to its users a new service which combines online access to journal citations located at Caltech with document delivery. This service evolved over several years, beginning with efforts to include the citation access in the library's integrated library system and culminating in the purchase of the powerful BRS/Search software to run on a small IBM mainframe specifically to support this project. Various decisions about implementation were made along the way, with no perfect solution being reached. Instead, the library learned to balance different factors against each other in order to dertermine the best solution
  6. Greenwood, D.: OPAC research in the UK (1989) 0.01 
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    Abstract
    The rapid pace of OPAC implementation in this country is providing a fruitful environment for research, with a wide range of projects currently being undertaken, including a number concerned with the application of advanced information retrieval techniques to OPAC systems. This article reviews the current situation and describes some of the more important research projects being undertaken, particularly those funded by the British Library Research and Development Department. A brief description of the British Library's own OPAC project is also provided. The article concludes with an examination of the value of OPAC research and a look at where further research effort might best be concentrated
    Source
    Journal of librarianship. 21(1989), S.157-173
  7. Document retrieval systems (1988) 0.01 
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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
  8. Wood, A.J.: OPACs in public libraries : a second look (1989) 0.01 
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    Abstract
    2nd of two articles based on the results of a survey of on-line public access catalogues (OPACs) in public libraries carried out by Manchester Library School. 20 UK libraries provided data for the survey. Discusses types of OPAC configurations in use, suppliers of systems, help facilities, display of data, and subject searching on OPACs. Concludes that, in general, OPACs make accessing a catalogue easy and that this encourages catalogue use, resulting in increased document demand levels and in more satisfied customers.
  9. Hildreth, C.R.: Intelligent interfaces and retrieval methods for subject searching in bibliographic retrieval systems (1989) 0.01 
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    Footnote
    Rez. in: Journal of academic librarianship (1990) S.44 (R.J. Dorn); Bibliothek; Forschung u. Praxis 14(1990) S.90-91 (W. Umstätter)
  10. Congreve, J.: Problems of subject access : automatic generation of printed indexes and online thesaural control (1986) 0.01 
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    Abstract
    A research project in progress at Middlesex Polytechnic is examining the problems of providing adequate subject access from MARC-based cataloguing systems. Various forms of printed index are being evaluated and an experimental OPAC is being designed. The PRECIS RIN file will be tested as a basis for online thesaural control and as a browsing facility
  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) 0.01 
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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. Kaske, N.K.: ¬A comparative study of subject searching in an OPAC among branch libraries of a university library system (1988) 0.01 
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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.
  13. Poulter, A.: Expert systems in libraries 2 (1989) 0.01 
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    Abstract
    Reports a 1-day seminar which was organized by the Library Association Technology Group, Birmingham, 21 Mar 89. The following topics were presented: intelligent interfaces to online-data bases; knowledge-based abstracting; an expert selector of OPACs for subject access; neural nets and information science and value adders; and library and information science professionals and knowledge engineering.
  14. Porter, M.; Galpin, V.: Relevance feedback in a public access catalogue for a research library : Muscat at the Scott Polar Research Institute (1988) 0.01 
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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
  15. Lynch, C.A.: Response time measurement and performance analysis in public access information retrieval systems (1988) 0.01 
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  16. Olsen, R.J.; Christensen, J.O.; Larsen, K.A.; Willey, K.: Implementing NOTIS keyword/Boolean searching : a case study (1989) 0.01 
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    Abstract
    Contribution to a thematic issue devoted to subject control in on-line catalogues. Keyword searching with Boolean operators was impossible in the traditional on-line catalogue and its promised benefits in on-line systems are not yet clear. Reports on a survey undertaken at Brigham Young University library, Utah, which investigated this issue when the library was selected as a test site for keyword searching in the NOTIS on-line catalogue. Results of the survey were mixed. While keyword searching will require increased computer capacity for unstricted use, students, though content with the new tool, are not adept at using its sophisticated features and will require much more training than for the basic NOTIS on-line catalogue.
  17. Subject control in online catalogs (1989) 0.01 
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    Content
    Enthält die Beiträge: HOLLEY, R.P.: Subject access in the online catalog; KLUGMAN, S.: Failures in subject retreival; CARLYLE, A.: Matching LCSH and user vocabulary in the library catalog; MURDOCK, P.R.: Cataloging catalysis: toward a new chemistry of conscience, communication and conduct in the online catalog; DYKSTRA, M.: PRECIS in the online catalog; WILLIAMSON, N.J.: The role of classification in online systems; BROADBENT, E.: The online catalog: dictionary, classified, or both?; OLSEN, R.J., CHRISTENSEN, J.O., LARSEN, K.A. u. K. WILLEY: Implementing NOTIS keyword/Boolean searching: a case study; ROLLAND-THOMA, P. u. G. MERCURE: Subject access in a bilingual online catalogue; FROST, C.O.: Title words as entry vocabulary to LCSH: correlation between assigned LSCH terms and derived terms from titles in bibliographic records with implications for subject access in online catalogs; STONE, A.T.: Subject searching in law library OPACs; CHAN, L.M.: A subject cataloging code?; McCARTHY, C.: A reference librarian's view of the online subject catalog; JOUGUELET, S.: Subject access in online catalogs: developments in France; DALE, D.C.: Subject access in online catalogs: an overview bibliography
  18. Potter, W.G.: Expanding the online catalog (1989) 0.01 
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    Content
    Einleitung zum Themenheft 'Locally loaded databases in online library systems'
  19. Binder, W.: Quo vadis Online-Katalog? : Resümees und Zukunftsperspektiven (1989) 0.01 
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    Abstract
    Auf dem Hintergrund der aktuellen OPAC-Entwicklung in Deutschland werden im ersten Teil einzelne Aspekte des OPAC-Designs kommentiert. Es wird u.a. auch auf Möglichkeiten einer Standardisierung der Schnittstelle Retrieval-Software / Benutzeroberfläche eingegangen. Die derzeit dominierenden Online-Kataloge sind für eine Massenbenutzung nur bedingt geeignet, da sie in hohem Maße fehlerintolerant sind, eine Analyse nach Suchfeldern verlangen und mit grundsätzlichen Mängeln der Boole'schen Suchlogik behaftet sind. Im zweiten Teil werden werden Alternativen diskutiert, zum einen in Form eines alphabetisch sortierten Online-Katalogs, zum anderen in Form intelligenter bibliographischer Auskunftssysteme, die Ähnlichkeitssuchen bzw. sog. 'Closest-Match-Suchen' gestatten. Hierzu werden verschiedene Konzepte und Vorschläge vorgestellt
  20. Bonneß, E.: Problem der Herstellung und Anforderungen eines CD-ROM-Publikumskataloges in Bielefeld : Nutzungsmöglichkeiten des Systems durch andere Bibliotheken (1988) 0.01 
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