Search (4522 results, page 2 of 227)

  • × year_i:[1990 TO 2000}
  1. Nuckolls, K.A.: Subject access to diversity materials : the Library of Congress subject heading shortfall (1994) 0.07 
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    Abstract
    In the past, there has seemed to be a stubbornness on the part of the Library of Congress to update ethnic and racial, as well as sexual and medical subject headings. Delaying change can frustrate users of today's online and card catalogues. Reviews changes that have occured over the last 20 years and shows how library catalogues can be updated, or at least rendered more useful. Shows how automation can enhance, as well as prevent, subject heading updating
  2. Duncan, D.: IFLA Core Programme for Universal Bibliographic Control and International MARC (UBCIM) and Division of Bibliographic Control reports on activities 1994-1995 : Section on Classification and Indexing (1996) 0.07 
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    Abstract
    Discusses the work of the Section on Classification and Indexing, covering the working group on principles underlying subject heading languages; a state of the art survey of subject heading systems; requirements for a format for classification data; DDC edition 20; open programs at the Istanbul conference; the section newsletter; and cooperative projects
  3. O'Neill, E.T.: OCLC authority control (1994) 0.07 
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    Abstract
    A system based authority control system was essential to support OCLC's large database and the number and diversity of its users. The authority control system had to be able to (1) identify nonidentical heading entries in bibliographic records of the same name, geographic place, or subject, and (2) maintain a link from the erroneous form of the heading to the valid form (i.e. cross reference). Over 3.6 million headings have been corrected as part of these efforts
  4. Tartaglia, S.: ¬La sintassi delle stringhe di soggetto : metodo e principi (1997) 0.07 
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    Abstract
    Gives an account of the theoretical work underpinning the development of subject heading schemes for Italian libraries, as developed by the GRIS collaborative project of Italian research and academic libraries. Discusses semantic categories and principles of citation, rules for the syntax of subject headings, and logica syntactic principles for citation order
    Object
    GRIS subject heading scheme
  5. Wozniak, J.: Jezyk hasel przedmiotowych KABA : wybrane problemy realizacji projektu (1997) 0.07 
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    Abstract
    Addresses problems connected with designing the KABA subject heading scheme. 2 objectives have been set for the scheme: compatibility with RAMEAU and LCSH; and a high level of term specifity. Discusses potential advantages and disadvantages of KABA
    Footnote
    Übers. d. Titels: KABA subject heading system: selected issues of the project implementation
  6. Marner, J.C.: Measuring the success of keyword search strategy in an online catalog (1993) 0.06 
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    Abstract
    In the present environment of database searching, the research library user who is familiar with the concept of keyword searching with Boolean logic capabilities very often uses this same strategy in the online catalog rather than looking up the established form of the heading listed in 'Library of Congress Subject Headings' and 'Library of Congress Name Authorities'. Questions that needed to be addressed were: does keyword searching provide a satisfactory substitute for searching by the authorized heading, and what kind of service or disservice do libraries to their users when keyword searching is the only strategy tried? This study determined how many of of the nonauthorized headings listed as cross references in an authority system could be found in the bibliographic record. It also examined the necessity for truncation of the keyword terms derived from the nonauthorized heading. A weighted system measured the frequency with which individual MARC fields provided matches for the keywords. The results of this study lead to recommendations for maximizing search strategies
  7. Kierans, K.: Do we have this book? : askSam (1991) 0.06 
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    Abstract
    Describes the experience of 6 Cariboo-Thompson Nicoly Library system branches in implementing the askSam PC software package. This free text datavase program allows library brabches to gain access to their local holdings, system wide subject heading lists and titles held, using keyword, wildcard and Boolean searches
  8. Burger, J.: Schlagwortverzeichnis mit Komfort : das Programmsystem zur Arbeit mit dem Schlagwortverzeichnis des Saarländischen Rundfunks (1992) 0.06 
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    Abstract
    Describes the introduction of software which facilitates use of the subject heading index at the Saarland radio station. The system was programmed using DBase 3 plus data management system. It is used by a blind documentalist in the radio archive
  9. Mookerjee, B.P.; Neogi, D.; Banerjee, R.: AACR2: main entry vs. alternative heading (1990) 0.06 
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  10. Ranklin, K.L.; Nelson, L.: Gambling with subject headings (1993) 0.06 
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    Abstract
    Describes the collection of gambling held at the University of Nevada-Las Vegas James Dickinson Library. Gives a brief history of gambling in Nevada and describes the library's collection development policy. Examines how the collection has been catalogued discussing cataloguing policies, subject heading, and classification
  11. Baydur, G.: Subject indexing practices in Turkey (1996) 0.06 
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    Abstract
    Describes the process of subject indexing in Turkey using Library of Congress Subject Headings. Explains the criticisms for using foreign subject heading lists or classification systems in Turkish libraries. Covers criticisms regarding terminology; structural criticisms; and criticisms concerning the translations of headings
  12. Chan, L.M.; Vizine-Goetz, D.: Towards a computer-generated subject validation file : feasibility and usefulness (1998) 0.06 
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    Abstract
    Recognition, by libraries, of the need for improved efficiency and reliability in subject authority control in catalogues led to a study of the feasibility of automatically creating a subject heading validation file by scanning the OLUC. The premises were: that although the file would not be axhaustive, it would contain the majority of frequently used headings; and that the predicted level of accurary in the file would be high. A sample file of Library of Congress assigned subject headings, from the OCLC Subject Headings Corrections database was analyzed. Results showed that: the frequency of use varies inversely with the number of headings at a given rrate of use; a small number of headings with high frequencies of use accounts for the majority of total use, while a large proportion shows very low frequency of use; topical headings account for 2/3 of assigned headings; and error and obsolescence rates are both low and are in inverse relationship to the frequency of heading use. Concludes that an automatically generated subject heading validation file is feasible and could serve various purposes, including: verification of subject heading strings constructed by cataloguers; updating of subject headings in catalogue maintenance; and validation of subject headings during retrospective catalogue conversion
  13. Bourdon, F.: Qu'est-ce qu'un format d'autorité? (1997) 0.06 
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    Abstract
    Authority records complement bibliographic records, providing cataloguers with essential subject heading and related information. At present there is no international format standard comparable to ISBD for bibliographic records, though IFLA and the International Archives Council have set up working groups. The essential data form comprises of subject heading, structure, homonyms, with supplementary supporting information. In France MARC formats are most widely used, e.g. UNIMARC(A) for authority records and (B) for bibliographic. The National Library (BNF) is introducing new cataloguing software based on the reorganisation of its authotity files, using integrated INTERMARC. As an experiments, readers will for the first time have access to authority files, thus enriching, completing and clarifying the bibliographic records
  14. Maltese, D.: ¬Sul controllo dei termini di indicizzazione per soggetti : contributo al testo definitivo della Guida GRIS (1997) 0.06 
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    Abstract
    The 'Guida all'indicizzazione per soggetto', the outcome of the work of the GRIS collaborative project of Italian research and academic libraries on subject heading schemes for Italian libraries, was published in 1996, though not in a definitive form. Presents some notes as a contribution to the definitive version, particularly section 3. The latter is concerned with the control of terms, including the analysis of categories, the morphology of terms and the structure of vocabulary
    Object
    GRIS subject heading scheme
  15. Mikacic, M.: Teorijski osnove sustava za predmetno oznacivanje (1996) 0.06 
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    Abstract
    The book comprises the following chapters: Introduction; Basic concepts and data, definitions and terms; Codes for compilation of subject catalogues and subject heading lists in European and North American countries; codes for compilation of subject catalogues in Yoguslavia 1950-1990; Standards for the establishment of monolingual thesauri and standards for subject cataloguing; Theoretical bases of principles and of fundamental rules for subject cataloguing displayed in contemporary scientific works; Theory of classified and alphabetical subject catalogues; Syntactical systems for subject designation
    Content
    Übers. des Titels: Theoretical foundations of a system for subject heading assignments
  16. Lopes, M.I.: Principles underlying subject heading languages : an international approach (1996) 0.06 
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    Abstract
    Discusses the problems in establishing commonly accepted principles for subject retrieval between different bibliographic systems. The Working Group on Principles Underlying Subject Heading Languages was established to devise general principles for any subject retrieval system and to review existing real systems in the light of such principles and compare them in order to evaluate the extent of their coverage and their application in current practices. Provides a background and history of the Working Group. Discusses the principles underlying subject headings and their purposes and the state of the work and major findings
  17. Rolland-Thomas, P.: Thesaural codes : an appraisal of their use in the Library of Congress Subject Headings (1993) 0.06 
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    Abstract
    LCSH is known as such since 1975. It always has created headings to serve the LC collections instead of a theoretical basis. It started to replace cross reference codes by thesaural codes in 1986, in a mechanical fashion. It was in no way transformed into a thesaurus. Its encyclopedic coverage, its pre-coordinate concepts make it substantially distinct, considering that thesauri usually map a restricted field of knowledge and use uniterms. The questions raised are whether the new symbols comply with thesaurus standards and if they are true to one or to several models. Explanations and definitions from other lists of subject headings and thesauri, literature in the field of classification and subject indexing will provide some answers. For instance, see refers from a subject heading not used to another or others used. Exceptionally it will lead from a specific term to a more general one. Some equate a see reference with the equivalence relationship. Such relationships are pointed by USE in LCSH. See also references are made from the broader subject to narrower parts of it and also between associated subjects. They suggest lateral or vertical connexions as well as reciprocal relationships. They serve a coordination purpose for some, lay down a methodical search itinerary for others. Since their inception in the 1950's thesauri have been devised for indexing and retrieving information in the fields of science and technology. Eventually they attended to a number of social sciences and humanities. Research derived from thesauri was voluminous. Numerous guidelines are designed. They did not discriminate between the "hard" sciences and the social sciences. RT relationships are widely but diversely used in numerous controlled vocabularies. LCSH's aim is to achieve a list almost free of RT and SA references. It thus restricts relationships to BT/NT, USE and UF. This raises the question as to whether all fields of knowledge can "fit" in the Procrustean bed of RT/NT, i.e., genus/species relationships. Standard codes were devised. It was soon realized that BT/NT, well suited to the genus/species couple could not signal a whole-part relationship. In LCSH, BT and NT function as reciprocals, the whole-part relationship is taken into account by ISO. It is amply elaborated upon by authors. The part-whole connexion is sometimes studied apart. The decision to replace cross reference codes was an improvement. Relations can now be distinguished through the distinct needs of numerous fields of knowledge are not attended to. Topic inclusion, and topic-subtopic, could provide the missing link where genus/species or whole/part are inadequate. Distinct codes, BT/NT and whole/part, should be provided. Sorting relationships with mechanical means can only lead to confusion.
    Theme
    Konzeption und Anwendung des Prinzips Thesaurus
  18. Tibbo, H.R.: ¬The epic struggle : subject retrieval from large bibliographic databases (1994) 0.05 
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    Abstract
    Discusses a retrieval study that focused on collection level archival records in the OCLC OLUC, made accessible through the EPIC online search system. Data were also collected from the local OPAC at North Carolina University at Chapel Hill (UNC-CH) in which UNC-CH produced OCLC records are loaded. The chief objective was to explore the retrieval environments in which a random sample of USMARC AMC records produced at UNC-CH were found: specifically to obtain a picture of the density of these databases in regard to each subject heading applied and, more generally, for each records. Key questions were: how many records would be retrieved for each subject heading attached to each of the records; and what was the nature of these subject headings vis a vis the numer of hits associated with them. Results show that large retrieval sets are a potential problem with national bibliographic utilities and that the local and national retrieval environments can vary greatly. The need for specifity in indexing is emphasized
  19. Drabenstott, K.M.; Dede, B.A.R.; Leavit, M.: ¬The changes of meaning in subdivided subject headings (1999) 0.05 
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    Abstract
    The impetus for a large-scale study on subject heading understanding was a recommendation of the Library of Congress (LC) Subject Subdivisions Conference that suggested standardizing the order of subject subdivisions for the purpose of simplifying subject cataloging. This paper focuses on unexpected large-scale study findings about multiple meanings for subdivided subject headings and the effects that changes of meaning for different orders of subdivisions had on the meanings that end users and librarians provided to subdivided subject headings. Findings about changes of meaning in subdivided subject headings did not dissuade the authors regarding their recommendation that the library community adopt a standard order of subdivisions. The authors also give suggestions for additional studies of subject heading understanding that build on this one.
  20. Drabenstott, K.M.: Period subdivisions in the Library of Congress Subject Headings system : some thoughts and recommendations for the future (1992) 0.05 
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    Abstract
    This paper recognizes the limitations of the existing file of Library of Congress (LC) subject authority records for subject heading assignment and validation. it makes recommendations for a new file of machine readable authority records for period subdivisions and for enhancements to the existings file of subject authority records. Recommended changes would enable online systems to assist in subject heading formulations and verify, with limited assistance by human intermediaries, the individual components of subdivided headings. The recommendations are timely in view of changes to the forms of period subdivisions that the Library of Congress is studying to facilitate the display of period subdivisions in chronological order. The availability of machine-readable authority records for most period subdivisions would enable online systems to automatically make changes to the forms of period subdivisions in bibliographic records using cross references for previously-used forms in the autority records for the new forms. The paper also discusses issues arising from an enhancement of the existing controlled system of period subdivision. A study of subdivided subject headings in a large bibliographic database forms the basis of the recommendations

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