Search (683 results, page 1 of 35)

  • × theme_ss:"OPAC"
  1. Fieldhouse, M.; Hancock-Beaulieu, M.: ¬The design of a graphical user interface for a highly interactive information retrieval system (1996) 0.02
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    Abstract
    Reports on the design of a GUI for the Okapi 'best match' retrieval system developed at the Centre for Interactive Systems Research, City University, UK, for online library catalogues. The X-Windows interface includes an interactive query expansion (IQE) facilty which involves the user in the selection of query terms to reformulate a search. Presents the design rationale, based on a game board metaphor, and describes the features of each of the stages of the search interaction. Reports on the early operational field trial and discusses relevant evaluation issues and objectives
    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
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  2. Sharma, A.: ¬The Z39.50 information retrieval protocol (1998) 0.02
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    Abstract
    Reports results of the work of a new member of the ELINOR project team to review the development taking place in Z39.50 networked information retrieval protocol with a view to bringing the University's electronic library pilot systems, including ELINOR and the online catalogue into a single, unified system. Focuses particularly on the WWW client server environment
    Series
    British Library Research and Innovation Centre (BLRIC) report; 22
  3. Needleman, M.: Computing resources for an online catalog : ten years later (1992) 0.02
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    Abstract
    In this article I will look at the changig computing resources required to run a large information retrieval system like the MELVYL system. I will give a historical perspective, examining the aerly days of the MELVYL system and how the system has changed in the last decade. I will also provide some perspective on how new technologies have affected large information retrieval systems and what technologies will be required of such systems in the future, as the demands and requirements of large information retrieval systems continue to mature to meet increasing user needs.
    Source
    Information technology and libraries. 11(1992), S.168-172
  4. Lynch, C.A.: ¬The next generation of public access information retrieval systems for research libraries : lessons from ten years of the MELVYL system (1992) 0.02
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    Source
    Information technology and libraries. 11(1992) no.4, S.405-415
  5. Transaction log analysis (1993) 0.02
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    Abstract
    For the purposes of library and information science research, transaction lof analysis can be narrowly defined as the study of electronically recorded interactions between online information retrieval systems and the persons who search for the information found in those systems. Researchers most often use transaction log data with the intention of improving an information retrieval system, human utilization of the system, and human (and perhaps also system) understanding of how the system is used by information seekers. Transaction log analysis can provide system designers and managers with valuable information about how the system is being employed by actual users. It also can be used to study prototype systems or potential system improvements
  6. Borgman, C.L.: ¬The user's mental model of an information retrieval system : an experiment on a prototype online catalogue (1986) 0.02
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  7. Cove, J.F.; Walsh, B.C.: Online text retrieval via browsing (1988) 0.02
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    Abstract
    Browsing refers to information retrieval where the initial search criteris are generally quite vague. The fundamentals of browsing are explored as a basis for the creation of an intelligent computer system to assist with the retrieval of online information. Browsing actions via a computer terminal are examined, together with new methods of accessing text and satisfying user queries. Initial tests with a prototype system illustrated the use of different retrieval strategies when accessing online information of varying structure. The results suggest the construction of a more intelligent processing component to provide expanded capabiblities for content extrction and navigation within text documents
    Source
    Information processing and management. 24(1988), S.31-37
  8. Pu, H.-T.: Exploration of personalized information service for OPAC (1997) 0.02
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    Abstract
    Library OPACs have long been the gateways between users and information. They present to users the achievements of library automation, and are the most widely available automated retrieval systems and the first that many user encounter. Current trends in OPAC design are toward a user oriented, individual information service which can meet the different needs of users with a variety of background and interests. Compared with the rather inactive, short term and general information service of conventional systems, this type of system focuses on active, long term and personalized service. Proposes a framework for the design of such an OPAC and discusses some recent developments in personalized information service
    Date
    4. 8.1998 19:36:22
  9. Larson, R.R.: Cheshire 2 : design and evaluation of a next-generation online catalog system (1995) 0.02
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    Abstract
    The Cheshire 2 project is developing a next generation online catalogue and full text information retrieval system using advanced information retrieval techniques. It is being deployed at the University of California Berkeley Astronomy-Mathematics-Statistics Library, USA, and its use and acceptance is being evaluated using transaction monitoring and questionnaires. Describes the system architecture and user evaluation tools
    Imprint
    Medford, NJ : Learned Information
    Source
    Forging new partnerships in information: converging technologies. Proceedings of the 58th Annual Meeting of the American Society for Information Science, ASIS'95, Chicago, IL, 9-12 October 1995. Ed.: T. Kinney
  10. Harman, D.: User-friendly systems instead of user-friendly front-ends (1992) 0.02
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    Abstract
    Most commercial on-line information retrieval systems are not designed to service end users and, therefore, have often built front-ends to their systems specifically to serve the end user market. These front ends have not been well accepted, mostly because the underlying systems are still difficult for end users to use successfully in searching. New techniques, based on statistical methods, that allow natural language input and return lists of records in order of likely relevance, have long been available from research laboratories. Presents 4 prototype implementations of these statistical retrieval systems that demonstrate their potential as powerful and easily used retrieval systems able to service all users. The systems consist of: the PRISE system; the CITE system; the Muscat system; and the News Retrieval Tool
    Object
    News Retrieval Tool
    Source
    Journal of the American Society for Information Science. 43(1992), S.164-174
  11. Beaulieu, M.; Jones, S.: Interactive searching and interface issues in the Okapi best match probabilistic retrieval system (1998) 0.02
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    Abstract
    Explores interface design raised by the development and evaluation of Okapi, a highly interactive information retrieval system based on a probabilistic retrieval model with relevance feedback. It uses terms frequency weighting functions to display retrieved items in a best match ranked order; it can also find additional items similar to those marked as relevant by the searcher. Compares the effectiveness of automatic and interactive query expansion in different user interface environments. focuses on the nature of interaction in information retrieval and the interrelationship between functional visibility, the user's cognitive loading and the balance of control between user and system
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  12. Recker, I.; Ronthaler, M.; Zillmann, H.: OSIRIS - Osnabrück Intelligent Research Information System : ein Hyperbase Front End System für OPACs (1996) 0.02
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    Date
    22. 4.1996 20:07:57
  13. Pejtersen, A.M.: Implications of users' value perception for the design of a bibliographic retrieval system (1986) 0.02
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    Source
    Empirical foundation of information and software science. Ed.: J.C. Agarwal u. P. Zunde
  14. Pejtersen, A.M.: ¬The BookHouse : an icon based database system for fiction retrieval in public libraries (1992) 0.02
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    Source
    The marketing of library and information services, 2. Ed.: B. Cronin
  15. Trenner, L.: ¬A comparative survey of the friendliness of online "help" in interactive information retrieval systems (1989) 0.02
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    Abstract
    This article discusses the provision of "help" in interactive information retrieval system (IIRS) and describes a comparative survey of the "help" facilities of 16 such systems. Six guidelines for the design of a "help" facility are drawn up and these are used to evaluate the quality and friendliness of the "help" provided by each system. The scores indicate that "help" on IIRS is often inadequate, especially on the commercial online systems. This article concludes by discussing why "help" is so unfriendly and by suggesting some ways in which online "help" could be improved
    Source
    Information processing and management. 25(1989), S.119-136
  16. 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
  17. Pejtersen, A.M.: ¬The role of domain, task and users in providing subject access to information (1993) 0.01
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    Abstract
    Decribes the BookHouse, a system for the retrieval and indexing of fiction and non fiction literature developed for public and school libraries though cooperation between library and information science professionals. Discusses 3 aspects of the system: domain characteristic; task analysis; and user characteristics. Outlines the framework underlying the collection of field data with special emphasis on the work involved in transforming the empirical field studies of user behaviour in the library into computer system specifications and subsequent design of a retrieval system providing subject access to fiction. Describes a few of the many indexing policies, rules and practices which evolved for concept identification and book descriptions as well as the functionality and associated displays of the system for supporting the retrieval and indexing of fiction
  18. Sapa, R.: Zachowania informacy jne uzytkownika OPAC w Bibliotece Jagiellonskiej (1997) 0.01
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    Abstract
    Discusses the necessity of providing new methods of research into user information retrieval behaviour. Notes that the user using the catalogue via the Internet and communicating exclusively with the computer system, disappears from the librarian's direct view. Implementing adequate software facilities in some sense broadens research prospects and improves its quality. Describes research carried out at the Jagiellonian Library, Poland, into the extent of use of OPAC retrieval facilities, throught the application of software that records all information retrieval commands
    Footnote
    Übers. d. Titels: OPAC user's information behaviours in Jagiellonian Library
  19. Hert, C.A.; Nilan, M.S.: User-based information retrieval evaluation : an examination of an online public access catalog (1991) 0.01
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    Abstract
    Suggests that an appropriate method for evaluating information retrieval systems is to focus on the individual actions users attempts to perform on a system. The evaluation criterion 'degree of match' between attempted actions and actual system commands is one of a series of evaluation measures including perceived measures and summary measures that were investigated. Results indicate that there is the potential for significant improvement of the OPAC's interface, particularly those parts of the interface which concern searching and revision activities
    Imprint
    Medford : Learned Information Inc.
    Source
    ASIS '91: system understanding people. Proc. of the 54th Annual Meeting of the ASIS, vol.28, Washington, DC, 27.-31.10.1991. Ed.: J.-M. Griffiths
  20. Larson, R.R.: Classification clustering, probabilistic information retrieval, and the online catalog (1991) 0.01
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    Abstract
    Research into online catalog use and users has found some pervasive problems with subject searching in these systems. Subject searches too often fail to retrieve anything, and those that do succeed often retrieve "too much" material. This article examnies these problems and how they might be remedied. The theoretical principles for the design of effective information retrieval systems are discussed, and an experimental online catalog system based on these principles is described. The system, CHESHIRE, uses a method called "classification clustering", combined with probabilistic retrieval techniques, to provide natural language searching (which helps to reduce search failure) and to provide effective control of "information overload" in subject searching

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  • s 19
  • el 17
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  • x 7
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