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  • × theme_ss:"OPAC"
  1. Horn, M.E.: "Garbage" in, "refuse and refuse disposal" out : making the most of the subject authority file in the OPAC (2002) 0.08
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    Abstract
    Subject access in the OPAC, as discussed in this article, is predicated on two different kinds of searching: subject (authority, alphabetic, or controlled vocabulary searching) or keyword (uncontrolled, free text, natural language vocabulary). The literature has focused on demonstrating that both approaches are needed, but very few authors address the need to integrate keyword into authority searching. The article discusses this difference and compares, with a query on the term garbage, search results in two online catalogs, one that performs keyword searches through the authority file and one where only bibliographic records are included in keyword searches.
    Date
    10. 9.2000 17:38:22
    Source
    Library resources and technical services. 46(2002) no.3, S.111-
  2. Alonso Lifante, M.P.; Molero Madrid, F.J.: Enhancing OPAC records : evaluating and fitting within cataloguing standards a new proposal of description parameters for historical astronomical resources (2015) 0.07
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    Abstract
    Enhancing content description of specialized resources, particularly astronomical resources, is a matter that is still unresolved in library and information science. In this paper, the authors outline deficiencies in some fields and elements of cataloging standards for description of historical astronomical resources, mainly star atlases and catalogs. Furthermore, they review their recent proposal of astronomical parameters for a better description and propose an approach for accommodating these parameters in the current criteria of MARC 21, the International Standard Bibliographic Description, and Resource Description and Access. Fourteen new parameters are considered, and recommendations are provided to standards developers for the addition of elements to accommodate attributes of celestial cartographic resources. This would improve bibliographic records for such resources in astronomical libraries' OPACs, which will have a beneficial effect on information retrieval.
    Date
    10. 9.2000 17:38:22
    Source
    Library resources and technical services. 59(2015) no.4, S.140-161
  3. Walker, S.: Improving subject access painlessly : recent work on the Okapi online catalogue projects (1988) 0.07
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    Source
    Program. 22(1988), S.21-31
  4. Hug, H.; Nöthiger, R.: ETHICS: an online public access catalogue at ETH-Bibliothek, Zürich (1988) 0.06
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    Source
    Program. 22(1988), S.133-142
  5. Wagner, H.: OPAC für jedermann? (1993) 0.06
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    Footnote
    Eine Replik zu Auer: OPAC und Zeichensatz (Mitteilungen der VÖB 46(1993) H.2, S.21-22)
    Source
    Mitteilungen der Vereinigung Österreichischer Bibliothekare. 46(1993) H.3/4, S.69
  6. Auer, G.: Online-Kataloge und Zeichensatz (1993) 0.06
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    Footnote
    Vgl. Replik in: Mitteilungen der VÖB 46(1993) H.3/4 S.69 (H. Wagner)
    Source
    Mitteilungen der Vereinigung Österreichischer Bibliothekare. 46(1993) H.2, S.21-22
  7. Mitev, N.; Hildreth, C.R.: ¬Les catalogues interactifs en Grande-Bretagne et aux Etats-Unis (1989) 0.06
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    Source
    Bulletin des bibliothèques de France. 34(1989) no.1, S.22-47
  8. Riesthuis, G.J.A.; Stuurman, P.: Tendenzen in de onderwerpsontsluiting : T.4: Onderwerpsontsluiting en on-line catalogi (1990) 0.06
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    Source
    Open. 22(1990) no.10, S.326-330
  9. Ostendorp, C.; Trinks-Schulz, H.: Integriertes Bibliothekssystem BABSY/i3v an der Hochschulbibliothek der Fachhochschule Gelsenkirchen (1999) 0.06
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    Date
    23. 3.2000 15:22:58
    Source
    ProLibris. 4(1999) H.4, S.217-220
  10. Wimmer, W.: Multimedia-Angebote im Bibliothekskatalog : Neue Möglichkeiten durch das ALLEGRO-Programm ALCARTA (1999) 0.05
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    Date
    22. 1.2000 19:36:10
    22. 1.2000 19:41:58
    Pages
    S. -
  11. Wimmer, W.: Mit dem 'Surfbrett' in die Bibliothek : der World-Wide-Web Katalog der Bibliothek der Friedrich-Ebert-Stiftung (1996) 0.05
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    Date
    22. 4.1996 20:07:57
    Source
    Bibliotheksdienst. 30(1996) H.5, S.849-853
  12. Recker, I.; Ronthaler, M.; Zillmann, H.: OSIRIS - Osnabrück Intelligent Research Information System : ein Hyperbase Front End System für OPACs (1996) 0.05
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    Date
    22. 4.1996 20:07:57
    Source
    Bibliotheksdienst. 30(1996) H.5, S.833-848
  13. Saving the time of the library user through subject access innovation : Papers in honor of Pauline Atherton Cochrane (2000) 0.04
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    Abstract
    Pauline Atherton Cochrane has been contributing to library and information science for fifty years. Think of it-from mid-century to the millennium, from ENIAC (practically) to Internet 11 (almost here). What a time to be in our field! Her work an indexing, subject access, and the user-oriented approach had immediate and sustained impact, and she continues to be one of our most heavily cited authors (see, JASIS, 49[4], 327-55) and most beloved personages. This introduction includes a few words about my own experiences with Pauline as well as a short summary of the contributions that make up this tribute. A review of the curriculum vita provided at the end of this publication Shows that Pauline Cochrane has been involved in a wide variety of work. As Marcia Bates points out in her note (See below), Pauline was (and is) a role model, but I will always think of her as simply the best teacher 1 ever had. In 1997, I entered the University of Illinois Graduate School of Library and Information Science as a returning mid-life student; my previous doctorate had not led to a full-time job and I was re-tooling. I was not sure what 1 would find in library school, and the introductory course attended by more than 100 students from widely varied backgrounds had not yet convinced me I was in the right place. Then, one day, Pauline gave a guest lecture an the digital library in my introductory class. I still remember it. She put up some notes-a few words clustered an the blackboard with some circles and directional arrows-and then she gave a free, seemingly extemporaneous, but riveting narrative. She set out a vision for ideal information exchange in the digital environment but noted a host of practical concerns, issues, and potential problems that required (demanded!) continued human intervention. The lecture brought that class and the entire semester's work into focus; it created tremendous excitement for the future of librarianship. 1 saw that librarians and libraries would play an active role. I was in the right place.
    Date
    22. 9.1997 19:16:05
    Footnote
    Rez. in: KO 28(2001) no.2, S.97-100 (S. Betrand-Gastaldy); Information processing and management 37(2001) no.5, S.766-767 (H. Borko); JASIST 23(2002) no.1, S.58-60 (A.T.D. Petrou); Library and information science research 23(2001) S.200-202 (D.J. Karpuk)
    Pages
    217 S
    Type
    s
  14. Walker, S.: ¬The Okapi online catalogue research projects (1989) 0.04
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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.
    Pages
    S.84-106
  15. Hogan, S.A.: Educating users about catalogues and cataloguing : the impossible dream (1993) 0.04
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    Source
    International cataloguing and bibliographic control. 22(1993) no.2, S.23-26
  16. Khoo, C.S.G.; Wan, K.-W.: ¬A simple relevancy-ranking strategy for an interface to Boolean OPACs (2004) 0.04
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    Abstract
    A relevancy-ranking algorithm for a natural language interface to Boolean online public access catalogs (OPACs) was formulated and compared with that currently used in a knowledge-based search interface called the E-Referencer, being developed by the authors. The algorithm makes use of seven weIl-known ranking criteria: breadth of match, section weighting, proximity of query words, variant word forms (stemming), document frequency, term frequency and document length. The algorithm converts a natural language query into a series of increasingly broader Boolean search statements. In a small experiment with ten subjects in which the algorithm was simulated by hand, the algorithm obtained good results with a mean overall precision of 0.42 and mean average precision of 0.62, representing a 27 percent improvement in precision and 41 percent improvement in average precision compared to the E-Referencer. The usefulness of each step in the algorithm was analyzed and suggestions are made for improving the algorithm.
    Source
    Electronic library. 22(2004) no.2, S.112-120
  17. Online-Benutzerkataloge : Vergleich von OPACs mit Ausleihfunktionen an deutschen Universitätsbibliotheken (1994) 0.03
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    Footnote
    Rez. in: ABI-Technik 14(1994) H.3, S.269 (D. Schmidmaier); Mitteilungen VÖB 48(1995) H.1, S.65-66 (K. Niedermair); Bibliothek: Forschung u. Praxis 19(1995) H.1, S.127-128 (J. Nafzger-Glöser)
    Isbn
    3-924659-22-2
    Pages
    120 S
    Type
    s
  18. Carlyle, A.: Ordering author and work records : an evaluation of collocation in online catalog displays (1996) 0.03
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    Abstract
    To investigate the extent to which online catalogs arrange together, or collocate, records representing particular authors and works, a survey compared the displays resulting from 5 author and 5 work queries in 18 online catalogs. Dependent variables to measure collocation included the number of items irrelevant records were interfiled among relevant records. Searches for worst-case authors and works associated with large retrieval sets, including 'Homer' and 'Paradise lost', revealed the effects of Boolean versus string matching, query type, and catalog size on the collocation of relevant records. Results of the survey showed that string matching collocated relevant records more successfully than Boolean matching, that author records were collocated more successfully than work records, and, surprisingly, that catalog size had only a small effect on collocation
    Source
    Journal of the American Society for Information Science. 47(1996) no.7, S.538-554
  19. Cherry, J.M.; Clinton, M.: ¬An experimental investigation of two types of instruction for OPAC users (1991) 0.03
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    Source
    Canadian journal of information science. 16(1991) no.4, S.2-22
  20. McLachlan, R.W.: Public libraries : shrinking dollars, increased demands; clerical staff and OCLC to the rescue (1991) 0.03
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    Source
    OCLC micro. 7(1991) no.6, S.19-22

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