Search (19 results, page 1 of 1)

  • × theme_ss:"Konzeption und Anwendung des Prinzips Thesaurus"
  • × year_i:[1980 TO 1990}
  1. McMath, C.F.; Tamaru, R.S.; Rada, R.: ¬A graphical thesaurus-based information retrieval system (1989) 0.01 
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  2. Mooers, C.N.: ¬The indexing language of an information retrieval system (1985) 0.01 
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    Abstract
    Calvin Mooers' work toward the resolution of the problem of ambiguity in indexing went unrecognized for years. At the time he introduced the "descriptor" - a term with a very distinct meaning-indexers were, for the most part, taking index terms directly from the document, without either rationalizing them with context or normalizing them with some kind of classification. It is ironic that Mooers' term came to be attached to the popular but unsophisticated indexing methods which he was trying to root out. Simply expressed, what Mooers did was to take the dictionary definitions of terms and redefine them so clearly that they could not be used in any context except that provided by the new definition. He did, at great pains, construct such meanings for over four hundred words; disambiguation and specificity were sought after and found for these words. He proposed that all indexers adopt this method so that when the index supplied a term, it also supplied the exact meaning for that term as used in the indexed document. The same term used differently in another document would be defined differently and possibly renamed to avoid ambiguity. The disambiguation was achieved by using unabridged dictionaries and other sources of defining terminology. In practice, this tends to produce circularity in definition, that is, word A refers to word B which refers to word C which refers to word A. It was necessary, therefore, to break this chain by creating a new, definitive meaning for each word. Eventually, means such as those used by Austin (q.v.) for PRECIS achieved the same purpose, but by much more complex means than just creating a unique definition of each term. Mooers, however, was probably the first to realize how confusing undefined terminology could be. Early automatic indexers dealt with distinct disciplines and, as long as they did not stray beyond disciplinary boundaries, a quick and dirty keyword approach was satisfactory. The trouble came when attempts were made to make a combined index for two or more distinct disciplines. A number of processes have since been developed, mostly involving tagging of some kind or use of strings. Mooers' solution has rarely been considered seriously and probably would be extremely difficult to apply now because of so much interdisciplinarity. But for a specific, weIl defined field, it is still weIl worth considering. Mooers received training in mathematics and physics from the University of Minnesota and the Massachusetts Institute of Technology. He was the founder of Zator Company, which developed and marketed a coded card information retrieval system, and of Rockford Research, Inc., which engages in research in information science. He is the inventor of the TRAC computer language.
    Footnote
    Original in: Information retrieval today: papers presented at an Institute conducted by the Library School and the Center for Continuation Study, University of Minnesota, Sept. 19-22, 1962. Ed. by Wesley Simonton. Minneapolis, Minn.: The Center, 1963. S.21-36.
  3. Petersen, T.: Information on images : the Art and Architecture Thesaurus (1989) 0.00 
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    Abstract
    The Art and Architecture Thesaurus (AAT) was designed as a comprehensive vocabulary in its domain. Its faceted, hierarchically arranged structure allows for powerful indexing and retrieval capabilities, while its planned network of related term relationships makes it especially amenable to natural language processing. To gauge the AAT's effectiveness as a search tool against natural language queries, an experiment was carried out on DIALOG. There are 3 art data bases on DIALOG and there are also a number of other data bases that contain art related material. The experiment used queries culled from reference librarians at art and architecture libraries.
    Imprint
    Medford, New Jersey : Learned Information
  4. Maniez, J.: Relationships in thesauri : some critical remarks (1988) 0.00 
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    Abstract
    After reviewing some fundamental distinctions in relationships (paradigmatic/sytagmatic, interconceptual/ structural) the author proposes a functional approach for investigating the relationships in thesauri. The comparison between three closely related types of semantic fields (lexical, conceptual, thesaural) shows the specific function of relationships in all of these intellectual tools. In information retrieval the two main functions are location of relevant concepts and search of exhaustivity. a clear distinction of these aims can contribute to solving the difficult problem of the choice of 'related terms'. It is suggested that their usefulness relies upon empirical rather than upon semantic proximity. Some practical propositions are amde for the choice and display of relationships in thesauri
  5. Rada, R.: Connecting and evaluating thesauri : issues and cases (1987) 0.00 
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    Abstract
    Connecting and evaluating thesauri is an important task for the systematic development of better information retrieval systems. Connecting thesauri includes not only determining when terms in different thesauri are the same but also determining what kinds of relationships can be transferred from one thesaurus to another. This paper first presents issues in connecting and evaluating thesauri. Various experiments in connecting a particular thesaurus, the Medical Subject Headings, with other medical thesauri are described. In these experiments, similar terms in two thesauri are recognized and then differences in two thesauri are exploited to create more powerful thesauri. Part of the evaluation requires the thesaurus to support automatic indexing and retrieving of documents
  6. Krumholz, W.: Use and mis-use of thesauri : Bericht über eine Konferenz (1986) 0.00 
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    Abstract
    Bericht über die Ergebnisse einer von der Kommission der Europäischen Gemeinschaften in Brüssel vom 11.12.3.86 organisierten Konferenz. Als Ausgangspunkte dienten Folgerungen aus einer umfassenden Analyse von fast 1.000 Thesauri, dahingehemd, daß 'too many thesauri hampered by inadequate design, inappropriate exploitation, sometimes even non-use, insufficient maintenance, and inadequate development and updating software'. Die Ziele der Konferenz waren: (1) Set up an inventory of problems encountered in compiling, using, and managing a thesaurus; (2) Measure the impact of these problems on the effectiveness of information retrieval; (3) Make recommendations in order to solve these problems or avoid their occurrence
  7. Lerch, I.: ¬Das Dokumentationshilfsmittel Thesaurus (1982) 0.00 
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    Source
    Bibliothek: Forschung und Praxis. 6(1982), S.47-73
  8. Kohl, E.: ¬Der Thesaurus Polianthes der Bibliothek des Deutschen Bundestages in Beziehung zu den Normen DIN 1463, ISO 2788 und ISO 5964 (1985) 0.00 
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    Abstract
    Im Zuge des Aufbaus des DV-gestützten Verbundes der Bibliotheken der obersten Bundesbehörden in Bonn wurde auch der Thesaurus des Bibliothek des Deutschen Bundestages auf DV übernommen. Diese Automatisierung wurde zum Anlaß genommen, den Thesaurus im Lichte des neuesten Standes der nationalen und internationalen Normung zu überarbeiten. Dabei zeigte es sich, daß die Thesaurusnormung, wie sie in den genannten Normen zum Ausdruck kommt, Lücken in bezug auf die Bedürfnisse eines sozialwissenschaftlichen Thesaurus aufweist. Diese bilden den Schwerpunkt der Ausführungen
  9. Eastman, C.M.: Overlaps in postings to thesaurus terms : a preliminary study (1988) 0.00 
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    Date
    25.12.1995 22:52:34
    Imprint
    Medford, New Jersey : Learned Information Inc.
    Source
    ASIS'88. Information technology: planning for the next fifty years. Proceedings of the 51st Annual Meeting of the Americal Society for Information Science, Atlanta, Georgia, 23.-27.10.1988. Vol.25. Ed. by C.L. Borgman and E.Y.H. Pai
  10. Dahlberg, I.: ¬Die Pilotstudie "DB-Thesaurus" : Allgemeiner Thesaurus für Bibliotheken (1982) 0.00 
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    Abstract
    Im Jahre 1978/79 wurde bei der Deutschen Bibliothek eine Pilotstudie durchgeführt, in der die zur Indexierung der in der Reihe A der Deutschen Bibliographie ("Wöchentliches Verzeichnis") verwendeten Schlagwörter auf ihre Brauchbarkeit als Deskriptoren eines Allgemeinen Thesaurus für Bibliotheken untersucht werden. Es sollten die Grundprinzipien eines solchen Thesaurus darsgestellt, und seine Struktur (Fachgebiete, Anzahl der Hauptgruppen, Erschließungstiefe), die Möglichkeiten der Wortschatzbegrenzung, die Behandlung der Eigennamen und die Möglichkeiten der Terminologiekontrolle untersucht werden. Es zeigte sich, daß sich die Schlagwörter der DB sehr wohl als Thesauruselemente eignen, daß sie aber um viele Begriffe ergänzt werden müssen, um den Zusammenhang der Hierarchieebenen herzustellen
  11. Dahlberg, I.: ¬Die Pilotstudie DB-Thesaurus (1980) 0.00 
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    Abstract
    Bei der Pilotstudie DB-Thesaurus ging es um die Untersuchung der Art und Form der von der Deutschen Bibliothek für ihre Inhaltserschließung verwendeten Schlagwörter und ihre Eignung als Elemente eines allgemeinen Thesaurus für Bibliotheken. Der Abschlußbericht (Arbeits- und Ergebnisbericht) beantwortet die in der Ausschreibung ausgesprochenen Fragen bezgl. der Möglichkeiten und Grundprinzipien eines solchen Thesaurus der DB-Schlagwörter, insbesondere auch seiner Struktur (Umfassung der Fachgebeiete, Anzahl der Hauptgruppen, Erschließungstiefe), seiner Relationsarten (begriffliche und terminologische), der Möglichkeiten der Wortschatzbegrenzung, der Behandlung von Eigennamen und der Möglichkeiten der Terminologiekontrolle. Die Untersuchung ergab, daß sich die SW der DB als Thesauruselemente eignen, daß diese aber um viele Begriffe ergänzt werden müssen, die teilweise aus dem Schatz der DB-Verweisungen gewonnen werden könnten, wenn man einen systematisch angelegten, allgemeinen Thesaurus auf dieser Basis erstellen will. Unter den Anlagen befindet sich als Beispiel dafür, daß DB-Schlag- und Verweisungswörter zur Thesauruserstellung herangezogen werden können, ein sog. Sportthesaurus, der nur durch einige fehlende Oberbegriffe ergänzt wurde. Der gesamte systematische Teil ist im alphabetischen Teil enthalten. Auf die Unterscheidung der Abstraktionsrelation von der Bestandsrelation wurde auch im alphabetischen Teil besonderer Wert gelegt
  12. Röttsches, H.: Thesauruspflege im Verbund der Bibliotheken der obersten Bundesbehörden (1989) 0.00 
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    Source
    Mitteilungen der Arbeitsgemeinschaft der Parlaments- und Behördenbibliotheken. 1989, H.67, S.1-22
  13. Pott, B.: ¬Das Thesaurus Maintenance System (TMS) : Erfahrungen mit einer Dienstleistung des Berliner Arbeitskreises Information für die Fachinformation (1988) 0.00 
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    Source
    Von der Information zum Wissen - vom Wissen zur Information: traditionelle und moderne Informationssysteme für Wissenschaft und Praxis, Deutscher Dokumentartag 1987, Bad Dürkheim, vom 23.-25.9.1987. Hrsg.: H. Strohl-Goebel
  14. Haendler, H.: ¬Der Thesaurus als Grundlage sachgerechten Indexierens und Voraussetzung selektiver Literaturdatenbanken (1988) 0.00 
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    Source
    Von der Information zum Wissen - vom Wissen zur Information: traditionelle und moderne Informationssysteme für Wissenschaft und Praxis, Deutscher Dokumentartag 1987, Bad Dürkheim, vom 23.-25.9.1987. Hrsg.: H. Strohl-Goebel
  15. Foskett, D.J.: Thesaurus (1980) 0.00 
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    Source
    Encyclopedia of library and information science. Vol.30
  16. Buchan, R.L.: Intertwining thesauri and dictionaries (1989) 0.00 
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    Information services and use. 9(1989), S.171-175
  17. Sager, J.C.: Terminological thesaurus : a more appropriate designation or a deprecated synonym? (1982) 0.00 
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    Social science information studies. 2(1982), S.211-214
  18. Lee, W.G.; Ishikawa, Y.; Yamagishi, T.; Nishioka, A.; Hatada, K.; Ohbo, N.; Fujiwara, S.: ¬A dynamic thesaurus for intelligent access to research databases (1989) 0.00 
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    Information, knowledge, evolution. Proceedings of the 44th FID Congress, Helsinki, 28.8.-1.9.1988. Ed. by Sinikka Koshiala and Ritva Launo
  19. Bellamy, L.M.; Bickham, L.: Thesaurus development for subject cataloging (1989) 0.00 
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    Abstract
    The biomedical book collection in the Genetech Library and Information Services was first inventoried and cataloged in 1983 when it totaled about 2000 titles. Cataloging records were retrieved from the OCLC system and used as a basis for cataloging. A year of cataloging produced a list of 1900 subject terms. More than one term describing the same concept often appears on the list, and no hierarchical structure related the terms to one another. As the collection grew, the subject catalog became increasingly inconsistent. To bring consistency to subject cataloging, a thesaurus of biomedical terms was constructed using the list of subject headings as a basis. This thesaurus follows the broad categories of the National Library of Medicine's Medical Subject Headings and, with some exceptions, the Guidelines for the Establishment and Development of Monolingual Thesauri. It has enabled the cataloger in providing greater in-depth subject analysis of materials added to the collection and in consistently assigning subject headings to cataloging record.

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  • e 11
  • d 8

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