Search (22 results, page 1 of 2)

  • × theme_ss:"Preserved Context Index System (PRECIS)"
  1. Madelung, H.-O.: Subject searching in the social sciences : a comparison of PRECIS and KWIC indexes indexes to newspaper articles (1982) 0.01 
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    Abstract
    89 articles from a small, Danish left-wing newspaper were indexed by PRECIS and KWIC. The articles cover a wide range of social science subjects. Controlled test searches in both indexes were carried out by 20 students of library science. The results obtained from this small-scale retrieval test were evaluated by a chi-square test. The PRECIS index led to more correct answers and fewer wrong answers than the KWIC index, i.e. it had both better recall and greater precision. Furthermore, the students were more confident in their judgement of the relevance of retrieved articles in the PRECIS index than in the KWIC index; and they generally favoured the PRECIS index in the subjective judgement they were asked to make
  2. Austin, D.: Automatisierung in der Sacherschließung der British Library (1984) 0.01 
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    Abstract
    Dieser Aufsatz beschäftigt sich mit Management-Aspekten der Sacherschließung in der British Library, Bibliographic Services Division, wo computergestützte, nicht völlig "automatische" Verfahren angewendet werden. In einer ausführlichen Darstellung des Arbeitsablaufes im Subject Systems Office wird der Weg eines Dokumentes durch die verschiedenen Sektionen verfolgt, und die betriebswirtschaftlichen Folgen der besonderen Rolle von PRECIS in diesem Arbeitsablauf werden erörtert. Das Mehrdateiensystem der British-Library-Datenbank wird beschrieben; es wird gezeigt, wie diese Struktur den effektiven Wiedergebrauch von Daten ermöglicht. Weiterhin wird die Verbesserung des on-line Retrieval durch den Einbau von präkoordinierten Themenangaben in den Suchablauf behandelt; abschließend wird die Rolle des Computers in der Sacherschließung einer IuD-Einrichtung wie der British Library diskutiert
    Source
    Bibliothek: Forschung und Praxis. 8(1984), S.45-57
  3. DeHart, F.E.; Glazier, J.: Computer searching on PRECIS : an exploration of measuring comparative retrieval effectiveness (1984) 0.01 
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    Abstract
    Designing research on the retrieval effectiveness of computer searches on PRECIS compared with retrieval effectiveness of searches on other types of subject analysis used in computer-based information sources is a complex process. This paper explores the complexity of measuring comparative retrieval effectiveness through a comparison of the subject analysis provided by the PRECIS system for fifty articles with the subject analysis provided for the same articles by three computer-based information sources: ERIC/CIJE, LLBA/Online and PsycINFO. Objectives are: (1) to discover factors that should be taken into account when designing this type of research; and (2) to identify extraneous variables that work against internal validity in research design .
    Theme
    Verbale Doksprachen im Online-Retrieval
  4. Austin, D.: PRECIS: Introduction (1987) 0.01 
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    Footnote
    Zusammenfassende kompakte Darstellung des Systems PRECIS, seiner Geschichte, Eigenschaften und Möglichkeiten bis hin zum Online-Retrieval. - Als Einführung zu empfehlen
    Source
    Encyclopedia of library and information science. Vol.42, [=Suppl.7]
  5. ¬The PRECIS system for computer-generated indexes and its use in the British National Bibliography (1972) 0.01 
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    Series
    Contributions in librarianship and information science; no.3
    Source
    Subject retrieval in the seventies: new directions. Proc. of an Int. Symp. ... College Park, May 14-15, 1971. Ed.: H.H. Wellisch et al
  6. Krömmelbein, U.: linguistische und fachwissenschaftliche Gesichtspunkte. Eine vergleichende Untersuchung der Regeln für die Schlagwortvergabe der Deutschen Bibliothek, RSWK, Voll-PRECIS und Kurz-PRECIS : Schlagwort-Syntax (1983) 0.01 
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    Footnote
    Examensarbeit Höherer Dienst an der FHBD in Köln. - Auch veröffentlicht in: Bibliothek: Forschung und Praxis 8(1984) S.159-203
  7. Maassen, B.: ¬The PRECIS project of the Deutsche Bibliothek (1984) 0.00 
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  8. Krömmelbein, U.: Linguistische und fachwissenschaftliche Gesichtspunkte der Schlagwortsyntax : Eine vergleichende Untersuchung der Regeln für die Schlagwortvergabe der Deutschen Bibliothek, der RSWK und der Indexierungsverfahren Voll-PRECIS und Kurz-PRECIS (1984) 0.00 
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    Abstract
    Die deutsche Bibliothek in Frankfurt bietet seit einigen Jahren zentrale Dienste im Bereich der verbalen Sacherschließung an, Um deren Akzeptanz zu verbessern, will die Deutsche Bibliothek ab 1986 von der augenblicklichen gleichordnenden Indexierung zu einem syntaktischen Verfahren übergehen. Als Alternativen standen die RSWK und eine verkürzte Version des britischen Indexierungsverfahrens PRECIS zur Diskussion. Die Anforderungen einer Fachwissenschaft an die Schlagwort-Syntax einer adäquaten Dokumentationssprache werden exemplarisch entwickelt, die vier Alternativen - augenblickliche verbale Sacherschließunf der DB, RSWK, PRECIS (britische Version) und Kurz-PRECIS (DB-Version) - an ihnen gemessen. Die Kriterien basiern auf Grammatiktheorien der modernen Linguistik und gehen von einer Analogie zwischen Dokumentationssprachen und natürlicher Sprache aus.
    Source
    Bibliothek: Forschung und Praxis. 8(1984), S.159-202
  9. Detemple, S.: PRECIS : ein computerunterstütztes System zur Herstellung alphabetischer Sachregister und Schlagwortkataloge (1982) 0.00 
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    Source
    Bibliothek: Forschung und Praxis. 6(1982), S.4-46
  10. Michell, G.: Does PRECIS have feet of clay? : problems with the universality of the role operators (1979) 0.00 
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    Abstract
    One current trend in information retrieval that can facilitate resource sharing and cost reduction is the sread of common indexing languages. Of the more sophisticated languages available, clearly the best known and widely adopted is PRECIS. One of the claims made for PRECIS by its designer is that the role operators it uses correspond to linguistic universals, making PRECIS eminently suitable for multilingual indexing. This strong claim, if justified, could make PRECIS the common indexing language of choice where translation problems have high priority, as they do in Canada. This paper shows there is little support for this claim to universality because the role operators are defined in terms of superficial characteristics of language that are far from universal
    Source
    Sharing resources, sharing costs. Proc. of the 7th Annual Canadian Conf. on Information Science, Banff, 12.-15.5.1979
  11. Dykstra, M.: Subject indexing and retrieval: what more can technology do? (1987) 0.00 
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  12. Austin, D.: ¬The role of indexing in subject retrieval (1976) 0.00 
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  13. Dykstra, M.: PRECIS in the online catalog (1989) 0.00 
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    Theme
    Verbale Doksprachen im Online-Retrieval
  14. Peters, H.J.: User reactions to PRECIS indexes (1981) 0.00 
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    Imprint
    Liverpool : Polytechnic. School of Librarianship and Information Studies
  15. Venkatachari, P.N.: Application of PRECIS to Indian languages : a case study (1982) 0.00 
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    Source
    Perspectives in library and information science (Viswanathan Festschrift). Ed.: S.N. Agawahl
  16. Kuhlen, R.: Linguistische Grundlagen (1980) 0.00 
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    Source
    Grundlagen der praktischen Information und Dokumentation: eine Einführung. 2. Aufl
  17. Austin, D.: PRECIS (2009) 0.00 
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    Abstract
    Derek Austin's PRECIS, or PREserved Context Index System, was one of the most sophisticated indexing systems ever developed for text. Austin noted that there are many ways that the meaning of index entries may be misread and misunderstood, if the original context from which the concept came was not present. Drawing on a good understanding of linguistics, Austin and his colleagues developed a highly rigorous, yet not impossibly difficult, set of principles to use in indexing with the help of PRECIS. The system was particularly valuable for generating multiple word orderings of entries that still retained their proper contextual meaning. Much of the need for this feature was obviated by the development of powerful full text searching in information systems, however, and PRECIS receded from view in information science. The final sections of the article that address the details of coding and indexing management are deleted from the text below.
    Source
    Encyclopedia of library and information sciences. 3rd ed. Ed.: M.J. Bates
  18. PRECIS: Recent applications (1986) 0.00 
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    Content
    Enthält die Beiträge: CAIN, J.: PRECIS at UTLAS; CHOR, L.: PRECIS: report on chinese entries; DYKSTRA, M.: FORMAT; Connecting Canada's audiovisual information; SMITH, F.: An in-house PRECIS system for support in education; CHIPMAN, A.: Access to picture collections using PRECIS
  19. Bidd, D.; Chevigny, L. de; Marshall, M.: PRECIS for subject access in a national audiovisual information system (1986) 0.00 
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    Abstract
    The first opportunity to assess a largescale application of the PRECIS indexing system in North America came with its adoption by the National Film Board of Canada as the method of subject access to a national information system for Canadian audiovisual materials. The authors provide an overview of PRECIS use by this automated bibliographic service - the reasons for its choice, the challenge involved in the subject analysis and indexing of audiovisual documents, the methodology and software used to process PRECIS records, the resulting catalogue subject indexes and user reaction
  20. Richmond, P.A.: Classification from PRECIS : some possibilities (1976) 0.00 
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    Source
    Journal of the American Society for Information Science. 27(1976), S.240-247

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  • e 17
  • d 5

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