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  • × theme_ss:"Preserved Context Index System (PRECIS)"
  1. DeHart, F.E.; Glazier, J.: Computer searching on PRECIS : an exploration of measuring comparative retrieval effectiveness (1984) 0.02 
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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
    Preserved Context Index System (PRECIS)
    Verbale Doksprachen im Online-Retrieval
  2. Austin, D.: PRECIS: Introduction (1987) 0.02 
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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]
    Theme
    Preserved Context Index System (PRECIS)
  3. ¬The PRECIS system for computer-generated indexes and its use in the British National Bibliography (1972) 0.02 
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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
    Theme
    Preserved Context Index System (PRECIS)
  4. Dykstra, M.: Subject indexing and retrieval: what more can technology do? (1987) 0.01 
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    Theme
    Preserved Context Index System (PRECIS)
  5. Austin, D.: ¬The role of indexing in subject retrieval (1976) 0.01 
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    Theme
    Preserved Context Index System (PRECIS)
  6. Dykstra, M.: PRECIS in the online catalog (1989) 0.01 
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    Theme
    Preserved Context Index System (PRECIS)
    Verbale Doksprachen im Online-Retrieval
  7. Michell, G.: Does PRECIS have feet of clay? : problems with the universality of the role operators (1979) 0.01 
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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
    Theme
    Preserved Context Index System (PRECIS)
  8. Peters, H.J.: User reactions to PRECIS indexes (1981) 0.01 
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    Imprint
    Liverpool : Polytechnic. School of Librarianship and Information Studies
    Theme
    Preserved Context Index System (PRECIS)
  9. Venkatachari, P.N.: Application of PRECIS to Indian languages : a case study (1982) 0.01 
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    Source
    Perspectives in library and information science (Viswanathan Festschrift). Ed.: S.N. Agawahl
    Theme
    Preserved Context Index System (PRECIS)
  10. Kuhlen, R.: Linguistische Grundlagen (1980) 0.01 
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    Source
    Grundlagen der praktischen Information und Dokumentation: eine Einführung. 2. Aufl
    Theme
    Preserved Context Index System (PRECIS)
  11. PRECIS: Recent applications (1986) 0.01 
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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
    Theme
    Preserved Context Index System (PRECIS)
  12. Bidd, D.; Chevigny, L. de; Marshall, M.: PRECIS for subject access in a national audiovisual information system (1986) 0.01 
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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
    Theme
    Preserved Context Index System (PRECIS)
  13. Richmond, P.A.: Classification from PRECIS : some possibilities (1976) 0.01 
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    Abstract
    The Preserved Context Index System (PRECIS) developed for subject indexing for the BNB is discussed as a basis for various studies relating to classification which could be made from its initial phrases, strings, entries and back-up structure. Specific possibilities include use of mehodologies such as Goffman's "indirect method", Fox's "characterization" of rules, derivation of empirical hyperbolic distributions, and lognormal distributions. The relationship of existing methods of subject analysis to each other through PRECIS is explored. Brief samples are included
    Source
    Journal of the American Society for Information Science. 27(1976), S.240-247
    Theme
    Preserved Context Index System (PRECIS)
  14. Austin, D.: PRECIS (2009) 0.01 
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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
    Theme
    Preserved Context Index System (PRECIS)
  15. 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
    Theme
    Preserved Context Index System (PRECIS)
  16. 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
    Theme
    Preserved Context Index System (PRECIS)
  17. ¬The PRECIS index systems : principles, applications, and prospects. Proc. of the Int. PRECIS workshop sponsored ... , Univ. of Maryland, 15.-17.10.1976. (1977) 0.00 
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    Content
    Enthält die Beiträge: AUSTIN, D.: The development of PRECIS, and introduction to its syntax; AUSTIN, D.: The semantics of PRECIS: vocabulary control and the RIN system; AUSTIN, D.: Management aspects of PRECIS, and current research and development; SØRENSEN, J.: Multilingual aspects of PRECIS; RICHMOND, P.A.: PRECIS compared with other indexing systems; BRUIN, V. de: PRECIS in a university library; SCHABAS, A.H.: Machine searching of UK MARC on title, LCSH, and PRECIS for selective dissemeination of information; TAYLOR, A.: Manual application of PRECIS in a high school library; ROBINSON, C.D.: Indexing nonbook materials by PRECIS; DYKSTRA, M.: The National Film Board of Canada project; COOK, C.D.: The practical possibilities of PRECIS in North America
    Theme
    Preserved Context Index System (PRECIS)
  18. Mahapatra, M.; Biswas, S.C.: Efficiency of PRECIS role operators (1984) 0.00 
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    Abstract
    The efficiency of the role operators of PRECIS may be studied from two viewpoints - quantitative as well as qualitative. The frequency of appearance of different role operators in an input string may be taken as a measure of such quantitative parameters of efficiency. The scope of this paper lies in measuring the efficiency of role operators through their frequency of appearances in input strings. Most of the earlier research on PRECIS focused either on its general descriptions or its application to various subjects, media, languages, institutions, countries and to any regional/national/international information exchange network. No work has so far been reported which makes a quantitative evaluation of the system through its role operators except some general evaluative studies against different subject fields
    Theme
    Preserved Context Index System (PRECIS)
  19. Austin, D.; Digger, J.A.: PRECIS: The Preserved Context Index System (1977) 0.00 
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    Theme
    Preserved Context Index System (PRECIS)
  20. Dykstra, M.: PRECIS: a primer (1985) 0.00 
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    LCSH
    PRECIS (Indexing system)
    Subject
    PRECIS (Indexing system)
    Theme
    Preserved Context Index System (PRECIS)

Authors

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