Search (4533 results, page 3 of 227)

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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.

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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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Abstract

identifies indexing features of the National Library of Medicine's Medical Subject Headings (MeSH) that pose challenges to end users of MEDLINE. These problematic features include the use of Explodes, Tree structures, subheadings, Text Word versus subject heading searching, and central concept searching. As end user search software becomes more sophisticated, so much methods of instruction to orient the end user to theses systems

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Abstract

The disciplines of human-computer interaction, computer-supported collaborative work, information storage and retrieval, and artificial intelligence should complement one another in the new discipline of hypertext. This holistic view of hypertext focuses on links: links within a document (microtext), links among documents (macrotext), links among people (grouptext), and dynamic links (expertext). The principles and systems which are relevant to creating and accessing hypertext can be usefully presented under the heading of text, microtext, macrotext, grouptext and expertext. From text to expertext, people consistently use hierarchical structures, particularly hierarchical semantic nets, to organize information

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Abstract

Recounts the efforts throughout the 1980s to promote the idea of a subject heading code and revisions to LC subject haedings. Describes the current situation of stasis. The Library of Congress has announced no comprehensive plan for LC Subject Headings, and it is unclear whether the concept of standardisation will be embraced

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Abstract

Investigates the inadequacy of the 10th ed. of LCSH regarding Islamic subject headings and compares it with some of the schemes available in Arabic. Whilst LCSH is not entirely inadequate, in some subjects related to Islam there is room for improvement and expansion. The following subjects are covered in the comparison: Islam as a general heading, Quran, the Prophet Muhammad, Hadith, islamic law, prayer, and Muslim pilgrims and pilgrimages

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Abstract

Evaluates the available subject-heading lists and critically examines 100 monographs recently catalogues by the Services documentaires multimedia asserting that French-language subject access tools do not meet the needs of users in public and school libraries. Reviews the development of subject catalogues in North America and suggests recommendations aimed at creating a vocabulary better adapted to the needs of users

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Abstract

Reviews the movement for change in the patterns and usage of LCSH and suggests improvements to the headings in the social sciences. Covers: confusion between disciplines and topics; confusion over the first element in a heading; insufficient number of headings; the problem of conditional subjects; controversial terminology; and insufficient See References

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Abstract

Locating notes about MeSH subheadings can be one of the most difficult aspects of MEDLINE searching. When used with MeSH, subheadings serve to limit or define the focus of a heading. NLM indexers, staff members who enter the MeSH indexing into the database, use subheadings freely. They do follow indexing conventions and searchers need to be aware of how to obtain basic subheading information to assist in search formulation. There are a number of methods which may be used in order to view subheading use notes

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Abstract

Integration of archival materials catalogued in the USMARC AMC format into online catalogues has given a new urgency to the need for direct subject access. Offers a broad definition of the concepts to be considered under the subject access heading, including not only topical subjects but also proper names, forms of material, time periods, geographic places, occupations, and functions. It is both necessary and possible to provide more consistent subject access to archives and manuscripts than currently is being achieved. Describes current efforts that are under way in the profession to address this need

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Abstract

The Zeitschriftendienst (ZD), a topical periodical analysis service, began publication in 1965 and now covers 200 periodicals. The Deutsche Bibliotheksinstitut has used electronic data processing for publishing since 1974. The editorial board processes and coordinates all incoming periodicals analysis. A committee advises on cataloguing problems, selects new entries and old material for discarding. In 1990 it was decided to use the Schlagwortnormdatei, a standardised subject heading system used in many libraries...The service is available in printed form on microfiche and disc. It may be possible to store ZD in in-house systems.