Search (25 results, page 1 of 2)

  • × year_i:[2000 TO 2010}
  • × theme_ss:"OPAC"
  1. Oberhauser, O.: Implementierung und Parametrisierung klassifikatorischer Recherchekomponenten im OPAC (2005) 0.02 
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    Abstract
    Das in den letzten Jahren wiedererwachte Interesse an der klassifikatorischen Erschließung und Recherche hat sich allem Anschein nach noch nicht ausreichend bis zu den Herstellern integrierter Bibliothekssysteme herumgesprochen. Wie wäre es sonst zu erklären, dass im OPAC-Modul eines führenden Systems wie Aleph 500 so gut wie keine Features für klassifikationsbasierte Recherchen zu erblicken sind? Tatsächlich finden wir heute einen im Vergleich zum einstigen System Bibos kaum veränderten Zustand vor: Notationen eines oder mehrerer Klassifikationssysteme können in einer durch MAB dafür bestimmten Kategorie (700, nebst Indikatoren) katalogisiert und dann recherchiert bzw. angezeigt werden. Doch welcher Benutzer weiß schon, was diese Notationen im einzelnen bedeuten? Wer macht sich die Mühe, dies selbst herauszufinden, um dann danach zu recherchieren? Hier liegt im wesentlich dasselbe Problem vor, das schon dem systematischen Zettelkatalog anhaftete und ihn zu einem zwar mühevoll erstellten, aber wenig genutzten Rechercheinstrument machte, das nur dann (zwangsläufig) angenommen wurde, wenn ein verbaler Sachkatalog fehlte. Nun könnte eingewandt werden, dass im Vergleich zu früher unter Aleph 500 wenigstens das Aufblättern von Indizes möglich sei, sodass im OPAC ein Index für die vergebenen Notationen angeboten werden kann (bzw. mehrere solche Indizes bei Verwendung von mehr als nur einem Klassifikationssystem). Gewiss, doch was bringt dem Uneingeweihten das Aufblättern des Notationsindex - außer einer alphabetischen Liste von kryptischen Codes? Weiter könnte man einwenden, dass es im Aleph-500-OPAC die so genannten Suchdienste ("services") gibt, mithilfe derer von bestimmten Elementen einer Vollanzeige hypertextuell weiternavigiert werden kann. Richtig, doch damit kann man bloß wiederum den Index aufblättern oder alle anderen Werke anzeigen lassen, die dieselbe Notationen - also einen Code, dessen Bedeutung meist unbekannt ist - aufweisen. Wie populär mag dieses Feature beim Publikum wohl sein? Ein anderer Einwand wäre der Hinweis auf das inzwischen vom Hersteller angebotene Thesaurus-Modul, das vermutlich auch für Klassifikationssysteme eingesetzt werden könnte. Doch wie viele Bibliotheken unseres Verbundes waren bisher bereit, für dieses Modul, das man eigentlich als Bestandteil des Basissystems erwarten könnte, gesondert zu bezahlen? Schließlich mag man noch einwenden, dass es im Gegensatz zur Bibos-Zeit nun die Möglichkeit gibt, Systematiken und Klassifikationen als Normdateien zu implementieren und diese beim Retrieval für verbale Einstiege in die klassifikatorische Recherche oder zumindest für die Veranschaulichung der Klassenbenennungen in der Vollanzeige zu nutzen. Korrekt - dies ist möglich und wurde sogar einst für die MSC (Mathematics Subject Classification, auch bekannt als "AMS-Klassifikation") versucht. Dieses Projekt, das noch unter der Systemversion 11.5 begonnen wurde, geriet jedoch nach einiger Zeit ins Stocken und fand bedauerlicherweise nie seinen Weg in die folgende Version (14.2). Mag auch zu hoffen sein, dass es unter der neuen Version 16 wieder weitergeführt werden kann, so weist dieses Beispiel doch auf die grundsätzliche Problematik des Normdatei-Ansatzes (zusätzlicher Aufwand, Kontinuität) hin. Zudem lohnt sich die Implementierung einer eigenen Normdatei 4 wohl nur bei einem größeren bzw. komplexen Klassifikationssystem, wogegen man im Falle kleinerer Systematiken kaum daran denken würde.
    Source
    Mitteilungen der Vereinigung Österreichischer Bibliothekarinnen und Bibliothekare. 58(2005) H.1, S.22-37
  2. Condron, L.; Tittemore, C.P.: Library catalogs on the Web (2002) 0.02 
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    Source
    Cataloging and classification quarterly. 34(2002) no.4, S.13-17
  3. Schneider, R.: OPACs, Benutzer und das Web (2009) 0.01 
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    Date
    22. 2.2009 18:50:43
  4. Horn, M.E.: "Garbage" in, "refuse and refuse disposal" out : making the most of the subject authority file in the OPAC (2002) 0.01 
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    Date
    10. 9.2000 17:38:22
  5. Beccaria, M.; Scott, D.: Fac-Back-OPAC : an open source interface to your library system (2007) 0.01 
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    Date
    17. 8.2008 11:22:47
  6. Moulaison, H.L.: OPAC queries at a medium-sized academic library : a transaction log analysis (2008) 0.01 
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    Date
    10. 9.2000 17:38:22
  7. Lam, V.-T.: Enhancing subject access to monographs in Online Public Access Catalogs : table of contents added to bibliographic records (2000) 0.01 
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    Date
    22. 9.1997 19:16:05
  8. Hubrich, J.: Input und Output der Schlagwortnormdatei (SWD) : Aufwand zur Sicherstellung der Qualität und Möglichkeiten des Nutzens im OPAC (2005) 0.01 
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    Date
    30. 1.2007 18:22:15
  9. Li, Y.-O.; Leung, S.W.: Computer cataloging of electronic Journals in unstable Aggregator Databases the Hong Kong Baptist University Library experience (2001) 0.01 
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    Date
    10. 9.2000 17:38:22
  10. Ihadjadene, M.; Bouché, R.; Zâafrani, R.: ¬The dynamic nature of searching and browsing on Web-OPACs : the CATHIE experience (2000) 0.01 
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    Abstract
    The paradigm shift from the old system centered view to a user centered approach involves new tools needed for accessing library resources under the condition that the user's needs are taken into account. An end-user, who has only a little knowledge of classification systems or thesauri, understands little of the mode of the representation of contents and the use of authority lists. In addition, he will have difficulty in formulating his question in a precise manner. He needs to know better what the library proposes in order to define of what use it would be for him. Many studies have been carried out on the use of controlled vocabularies (classification, authority lists, thesauri) as searching devices. It is surprising to find that relatively little attention has been given to the role of these tools in filtering and browsing processes. We have developed a prototype named CATHIE (CATalog Hypertextuel Interactif et Enrichi) that supports such filtering and interactive reformulation features
  11. Wien, C.: Sample sizes and composition : their effect on recall and precision in IR experiments with OPACs (2000) 0.01 
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    Source
    Cataloging and classification quarterly. 29(2000) no.4, S.73-86
  12. Ho, J.: Faculty and graduate student search patterns and perceptions of videos in the online catalog (2001) 0.01 
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    Source
    Cataloging and classification quarterly. 33(2001) no.2, S.69-88
  13. Wakimoto, J.C.: Scope of the library catalog in times of transition (2009) 0.01 
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    Source
    Cataloging and classification quarterly. 47(2009) no.5, S.409-426
  14. Golderman, G.M.; Connolly, B.: Between the book covers : going beyond OPAC keyword searching with the deep linking capabilities of Google Scholar and Google Book Search (2004/05) 0.01 
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    Date
    2.12.2007 19:39:22
  15. Rädler, K.: Kataloganreicherung mit digitalen Inhaltsverzeichnissen eröffnet neue Geschäftsfelder : Erfahrungen aus der Vorarlberger Landesbibliothek (2008) 0.01 
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    Date
    22. 6.2008 17:14:24
  16. Schallier, W.: On the razor's edge : between local and overall needs in knowledge organization (2004) 0.01 
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    Abstract
    Recent projects in subject indexing and classification at K.U.Leuven University Library (Belgium) aim to give new Impulses to knowledge organization within the Institution. While in recent years a lot of attention was given, and with good reason, to the technical and administrative integration of e-sources, less energy was invested in organising the content of traditional and electronic collections. Nevertheless, presenting information sources in a content-structured way remains a core task of our University Library. This paper focuses an some experiments with subject search interfaces at K.U.Leuven University Library and situates them in a new policy for knowledge organization, which tries to find a balance between local and overall needs.
    Content
    1. One Institution, one catalogue, one solution? K.U.Leuven University Library has a decentralised structure consisting of several department libraries and one central library. It is part of LIBIS-net, which is the biggest network of academic libraries in Belgium. In this network, maintaining the balance between local and overall needs presents a constant challenge. Standards and overall rules in cataloguing are indispensable for permitting information exchange within and outside the network. On the other hand, overall solutions do not necessarily render the best service to the user of a specific library. This is especially the case for subject cataloguing. It is difficult, and perhaps unreasonable, to convince a department library to use a generally accepted thesaurus like LCSH, if the users are familiar with a local classification that is much better adapted to the collection. The DOBIS/LIBIS library system of K.U.Leuven offered a technical solution for the conflict between overall and local needs. The main part of the bibliographic description was stored an the overall level and was visible for the whole network. For subject cataloguing this was the case for UDC, LCSH and McSH. A UDC authority file was built containing UDC codes linked to descriptors in different languages (Dutch, English and French). The authority file was linked to the UDC codes used in the bibliographic descriptions. This permitted searching by either UDC codes or verbal terms. LCSH were regularly and automatically uploaded in the catalogue to enrich the bibliographic descriptions. Finally, our Library of Biomedical Sciences used McSH. Local information, like thesauri and classifications exclusively used in a specific library, were stored in local files ("local keywords") and could only be seen by that library (up to branch level). For many years, this local information posed no difficulties. 27.04% of all documents and 38.16% of those younger than 1992 have local keywords
  17. Blosser, J.; Michaelson, R.; Routh. R.; Xia, P.: Defining the landscape of Web resources : Concluding Report of the BAER Web Resources Sub-Group (2000) 0.01 
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    Date
    21. 4.2002 10:22:31
  18. Thomas, D.H.: ¬The effect of interface design on item selection in an online catalog (2001) 0.01 
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    Date
    10. 9.2000 17:38:22
  19. Ikas, W.-V.; Litten, F.: World Wide Web und Catalogue Enrichment : Möglichkeiten des verbesserten Nachweises von mikroverfilmten Handschriften und Inkunabeln (2007) 0.01 
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  20. Greifeneder, E.: Hilfe auf allen Ebenen : ein Beitrag zur Forschung über Online-Hilfen in OPACs (2008) 0.01 
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