Search (37 results, page 1 of 2)

  • × theme_ss:"Klassifikationssysteme im Online-Retrieval"
  • × year_i:[1980 TO 1990}
  1. Hermes, H.-J.; Bischoff, M.: ¬Die Dezimaklassifikation (DK) in Datenbanken (1989) 0.02 
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    Abstract
    Untersucht wird die unterschiedliche Anwendung der UDK in Datenbanken. Die vollendete Nutzung aller Vorteile besteht in der Ausschöpfung der Hierarchien zum Auf- und Weiterbau des Vokabulars und zur Darstellung der "Sachregister-Umgebungen"
  2. König, G.: Online-Retrieval mit der Dezimalklassifikation? (1986) 0.02 
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    Abstract
    Nach einer kurzen Einführung in die DK wird die Verwendung einer computerisierten fassung der DK in einigen Institutionen beschrieben, wie z.B. in der Bibliothek der ETH Zürich oder beim Österreichischen Arbeiterkammertag. Abfragemöglichkeiten über die DK werden am Beispiel von drei datenbanken aus drei verschiedenen Hosts diskutiert. Es sind: Economic Abstracts (Host: DIALOG), VWWW (Host: DATASTAR) und MATHDI (Host: INKA). Die besonderen Schwierigkeiten bei komplexen DK-Zahlen werden diskutiert und es wird vorgeschlagen, einen Algorithmus zum Aufbau von DK-Zahlen zu erstellen.
    Source
    Klassifikation als Werkzeug der Lehre und Forschung. Hrsg.: I. Dahlberg
  3. Dack, D.: Australian attends conference on Dewey (1989) 0.01 
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    Abstract
    Edited version of a report to the Australian Library and Information Association on the Conference on classification theory in the computer age, Albany, New York, 18-19 Nov 88, and on the meeting of the Dewey Editorial Policy Committee which preceded it. The focus of the Editorial Policy Committee Meeting lay in the following areas: browsing; potential for improved subject access; system design; potential conflict between shelf location and information retrieval; and users. At the Conference on classification theory in the computer age the following papers were presented: Applications of artificial intelligence to bibliographic classification, by Irene Travis; Automation and classification, By Elaine Svenonious; Subject classification and language processing for retrieval in large data bases, by Diana Scott; Implications for information processing, by Carol Mandel; and implications for information science education, by Richard Halsey.
    Date
    8.11.1995 11:52:22
  4. Oberhauser, O.: Klassifikation in Online-Informationssystemen (1986) 0.01 
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    Abstract
    Für fachspezifische bibliographische Online-Recherchen werden in den meisten Fällen die Ergebnisse nur der verbalen inhaltlichen Erschliessung genutzt (Deskriptoren, Schlagwörter, Stichwörter, Abstract-Texte). Viele bibliographische Datenbanken sind aber auch mit Hilfe von Notationen aus Klassifikationssystemen recherchierbar. Dieser Beitrag behandelt die letztere Form des sachlichen Zugriffs und streicht die Rolle von Notationen ("class codes") als nützliche Ergänzung zur verbalen Recherche heraus. Im ersten Teil werden folgende Fragen thematisiert: In welchem Ausmass sind Klassifikationsschemata als sachliche Zugriffsmöglichkeit in bibliographischen Datenbanken vorhanden? Welcher Art sind diese Schemata und ihre Notationen? Der zweite Teil veranschaulicht mehrere vorteilhafte Möglichkeiten der Anwendung von Notationen bei der bibliographischen Recherche. Der dritte Teil beschäftigt sich mit Änderungen von Klassifikationssystemen - dem Hauptproblem ihrer Verwendung bei der Online-Recherche. Der Rechercheur muss daher nicht nur wissen, wie Klassifikationen zur Verbesserung der Suchstrategie eingesetzt werden, sondern auch, wie Schwierigkeiten dieser Art zu bewältigen sind.
  5. Gödert, W.: Klassifikationssysteme und Online-Katalog (1987) 0.01 
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    Abstract
    Free text searching with keywords in a complete data store is not necessarily the best automatic retrieval method. There must be a proper classification of documents and concepts and the use of a proper classification system avoids problems of terminological deficiency. The dialogue search form makes the on-line catalogue a new information medium. A bibliographic unit must be created with as many search access points as possible, using verbal and classificatory search elements. Verbal search categories must include free text elements for individual search access requirements and a controlled vocabulary with syntactic connections. Classified data should consist of a universal classification system with clear structural notation for access and surface searching, together with several specialist subject classifications for differentiated documentation and retrieval. The universal classification needs no detailed subdivision: it serves mainly as a guide and entry to the detailed sub-systems
    Source
    Zeitschrift für Bibliothekswesen und Bibliographie. 34(1987) H.3, S.185-195
  6. Hill, J.S.: Online classification number access : some practical considerations (1984) 0.01 
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    Source
    Journal of academic librarianship. 10(1984), S.17-22
  7. Schmidt, K.; Walser, M.: ETHICS: Anleitung für die Katalogabfrage und die Ausleihe (1989) 0.01 
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  8. ETHICS: Detailanleitung zur On-line Abfrage; Titelwortabfrage und Sachabfrage. Stand: 30.7.1987 (1987) 0.01 
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  9. Williamson, N.J.: Online Klassifikation : Gegenwart und Zukunft (1988) 0.01 
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  10. Williamson, N.J.: ¬The role of classification in online systems (1989) 0.00 
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    Source
    Subject control in online catalogs. Ed.: R.P. Holley
  11. Miksa, F.: Shifting directions in LIS classification (1989) 0.00 
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    Source
    Classification theory in the computer age: conversations across the disciplines. Proc. from the Conf. 18.-19.11.1988, Albany, NY
  12. Cochrane, P.A.; Markey, K.: Preparing for the use of classification in online cataloging systems and in online catalogs (1985) 0.00 
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  13. Chan, L.M.: Library of Congress class numbers in online catalog searching (1989) 0.00 
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    Abstract
    In addition to using title keywords and subject headings for searching in the online catalog, the searcher may also use class numbers as access points. Library of Congress class or call numbers are particular effective in certain kinds of specific-item subject searching and serve as supplements to keywords and descriptors, improving precision and recall. Class number searching in the database can produce unique results because these numbers collect citations in ways that differ from those of keywords and descriptors
  14. Svenonius, E.: Design of controlled vocabularies in the context of emerging technologies (1988) 0.00 
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    Abstract
    Delineates on the changing role of vocabulary control devices such as classification, subject headings, and thesaurus. Identifies the basic issue in the design and development of these devices and their role in the changing information technology. The paper identifies the differentiations needed in the new roles of these devices in data base technology
  15. Duncan, E.B.: Structuring knowledge bases for designers of learning materials (1989) 0.00 
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    Abstract
    Three pre-web articles about using hypertext for knowledge representation. Duncan discusses how to use graphical, hypertext displays (she used Xerox PARC's NoteCards on a Xerox 1186 workstation) along with concept maps and facet analysis, a combination that would now be done with topic maps. The screen shots of her graphical displays are quite interesting. Her interest in facets is in how to use them to show things to different people in different ways, for example, so that experts can enter knowledge into a system in one way while novices can see it in another. Duncan found that facet labels (e.g. Process and Product) prompted the expert to think of related concepts when inputting data, and made navigation easier for users. Facets can be joined together, e.g. "Agents (causing) Process," leading to a "reasoning system." She is especially interested in how to show relstionships between two things: e.g., A causes B, A uses B, A occurs in B. This is an important question in facet theory, but probably not worth worrying about in a small online classification where the relations are fixed and obvious. These articles may be difficult to find, in which case the reader can find a nice sumary in the next article, by Ellis and Vasconcelos (2000). Anyone interested in tracing the history of facets and hypertext will, however, want to see the originals.
  16. Duncan, E.B.: ¬A faceted approach to hypertext (1989) 0.00 
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    Abstract
    Three pre-web articles about using hypertext for knowledge representation. Duncan discusses how to use graphical, hypertext displays (she used Xerox PARC's NoteCards on a Xerox 1186 workstation) along with concept maps and facet analysis, a combination that would now be done with topic maps. The screen shots of her graphical displays are quite interesting. Her interest in facets is in how to use them to show things to different people in different ways, for example, so that experts can enter knowledge into a system in one way while novices can see it in another. Duncan found that facet labels (e.g. Process and Product) prompted the expert to think of related concepts when inputting data, and made navigation easier for users. Facets can be joined together, e.g. "Agents (causing) Process," leading to a "reasoning system." She is especially interested in how to show relstionships between two things: e.g., A causes B, A uses B, A occurs in B. This is an important question in facet theory, but probably not worth worrying about in a small online classification where the relations are fixed and obvious. These articles may be difficult to find, in which case the reader can find a nice sumary in the next article, by Ellis and Vasconcelos (2000). Anyone interested in tracing the history of facets and hypertext will, however, want to see the originals.
  17. Markey, K.; Demeyer, A.N.: ¬The concept of common subject headings in subject outline searching (1989) 0.00 
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    Source
    Classification theory in the computer age: conversations across the disciplines. Proc. from the Conf. 18.-19.11.1988, Albany, NY
  18. Williamson, N.J.: ¬The role of classification in online systems (1989) 0.00 
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    Footnote
    Simultaneously published as Subject Control in Online Catalogs
  19. Markey, K.: Searching and browsing the Dewey Decimal Classification in an online catalog (1987) 0.00 
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    Abstract
    In the DDC Online Project, subject searching and browsing of DDC schedules and relative index were featured in an experimental online catalog. The effectiveness of this DDC in an online catalog was tested in online retrieval experiments at four participating libraries. These experiments provided data for analyses of subject searchers' use of a library classification in the information retrieval environment of an online catalog. Recommendations were provided for the enhancement of bibliographic records, online catalogs, and online cataloging systems with a library classification. In this paper, subject searchers' use of the subject outline search capability of the experimental online catalog is described. This capability was unique to the experimental online catalog and all other online catalogs, because it referred searchers to online displays of the classification schedules based on their entry of subject terms. Failure analyses of subject outline searches demonstrated its specific strenghts and weaknesses. Users' postsearch interview comments highlighted their experiences and their satisfaction with this search. Based on the failure analyses and users' interview comments, recommendations are provided for the improvement of the subject outline search in online catalogs.
  20. Classification theory in the computer age : Conversations across the disciplines. Proceedings from the Conference, Nov. 18.-19, 1988, Albany, New York (1989) 0.00 
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    Abstract
    Proceedings of a conference addressing issues in classification theory and practice especially oriented towards online environments.
    Content
    Enthält die Beiträge: D. BATTY: The future of DDC in the perspective of current classification research; I. DAHLBERG: Concept and definiton theory; I.L. TRAVIS: Application of artificial intelligence to bibliographic classification; E. SVENONIUS: An ideal classification for an on-line catalog; K. MARKEY u. A.N. DEMEYER: The concept of common subject headings in subject outline searching; N. WILLIAMSON: The Library of Congress Classification in the Computer age; D.S. SCOTT: Subject classification and natural-language processing for retrieval in large databases; F. MIKSA: Shifting directions in LIS classification; C. MANDEL: A computer age classification: implications for library practice; R.S. HALSEY: Implications of classification theory in the computer age for educators of librarians and information science professionals; J. HOLIDAY: Subject access: new technology and philosophical perspectives

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