-
Frost, C.O.; Dede, B.A.: Subject heading compatibility between LCSH and catalog files of a large research library : a suggested model for analysis (1988)
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- Abstract
- Assigned topical and geographic subject headings from a sample of 3.814 bibliographic records in the University of Michigan Library's catalog were analyzed to determine the degree of match with LCSH, 10th edition and to idetify types of heading conflicts that lend themselves to automatic subject authority control. The findings showed a surprising degree of agreement: 44 percent of headings matched LCSH 10th completely. For headings without subdivisions, the match was 88,4 percent. Since 93,6 percent of the topical subdivisions that did not match LCSH were found on the free-floating lists, some consideration should be given to developing a machine-readable file of free-floating subdivisons for matching purposes.
-
Dewar, M.: Restructuring the Library of Congress Subject Headings : Subject access and bibliographic instruction: two sides of the OPAC problem (1988)
0.04
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-
Lester, M.A.: Coincidence of user vocabulary and Library of Congress Subject Headings : experiments to improve subject access in academic library online catalogs (1989)
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-
Carlyle, A.: Matching LCSH and user vocabulary in the library catalog (1989)
0.04
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- Abstract
- Central to subject searching is the match between user vocabulary and the headings from Library of Congress Subject-Headings (LCSH) used in a library catalog. This paper evaluates previous matching studies, proposes a detailed list of matching categories, and tests LCSH in a study using these categories. Exact and partial match categories are defined for single LCSH and multiple LCSH matches to user expressions. One no-match category is included. Transaction logs from ORION, UCLA's online Information system, were used to collect user expressions for a comparison of LCSH and user language. Results show that single LCSH headings match user expressions exactly about 47% of the time; that single subject heading matches, including exact matches, comprise 74% of the total; that partial matches, to both single and multiple headings, comprise about 21% of the total; and that no match occurs 5% of the time.
-
McCarthy, C.: ¬A reference librarian's view of the online subject catalog (1989)
0.04
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- Abstract
- This paper suggests that the cataloging community may be setting its goals too low in its approach to online subject access. Truly effective subject retrieval for online catalog users will not be possible until the Library of Congress gives a higher priority to consistency in the assignment of subject headings. In recognition of the intellectual complexity of LCSH, the paper proposes the appointment of subject specialists to monitor the assignment of subject headings at the Library of Congress.
-
Hunn, N.O.; Wright, J.A.: ¬The implementation of ACORN authority control at Vanderbilt University Library (1987)
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- Abstract
- The implementation of our online integrated catalog ACORN at Vanderbilt University Library has been a complex and time-consuming task. The authority control component represents an important portion of the effort. The authority file consists of approximately one-half million name, subject, series, and uniform title headings, the majority of which were supplied to us by a vendor, Blackwell North America (BNA). Authority work has been integrated into our cataloging routine successfully, new headings are being added to our database daily, and extant headings are being validated online. This paper will cover a description of how Vanderbilt selected the Northwestern Online Total Integrated System (NOTIS); the ongoing editing of the authority file following the BNA processing; the interrelationship of Vanderbilt University Library's three processing units, General Technical Services (GTS), Medical Library, and Law Library apropos of the authority function; and some of the policies and procedures drawn up by the Authority Control Coordinator with the assistance of the other librarians in Monograph and Serial Services.
-
Markey, K.: Alphabetical searching in an online catalog (1989)
0.03
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- Abstract
- An experimental online catalog was developed that provided searchers with several different subject searching strategies. Analyses of retrieval test data suggest that searchers expect alphabetical searches to provide lists of assigned subject headings conceptually related to their topics of interest. System designers can now respond to their expectation by incorporating LCSH-mr in online catalogs
-
Cochrane, P.A.: Improving LCSH for use in online catalogs : exercises for self-help with a selection of background readings (1986)
0.03
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- LCSH
- Subject headings, Library of Congress / Problems, exercises, etc
- Subject
- Subject headings, Library of Congress / Problems, exercises, etc
-
Broadbent, E.: ¬The online catalog : dictionary, classified, or both? (1989)
0.03
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- Abstract
- The main purpose of the study was to determine if the online catalog can function both as a dictionary and classified catalog without requiring additional time or intellectual effort on the part of the cataloger. A total of 1842 MARC bibliographic records listed in the 370-379 classified section of American Book Publishing Record were studied. These records displayed 2735 subject headings. Of these, 1491 (55%) had a Library of Congress classification number linked to them. An alphabetical and classified index was created using primary subjects and their related classification numbers. While such an index could be a useful browsing device if integrated into an online catalog, creating a bona fide classified catalog would require assigning classification numbers to the secondary subject headings.
-
Walker, S.: Improving subject access painlessly : recent work on the Okapi online catalogue projects (1988)
0.03
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- Source
- Program. 22(1988), S.21-31
-
Hug, H.; Nöthiger, R.: ETHICS: an online public access catalogue at ETH-Bibliothek, Zürich (1988)
0.03
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- Source
- Program. 22(1988), S.133-142
-
Massicotte, M.: Improved browsable displays for online subject access (1988)
0.03
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- Abstract
- A browsable display under a specific search term can often frustrate users if the display is carried over several screens. This article investigates methods of compressing headings identified by MARC subfield codes to reduce the size of browsable displays. Arguments are presented that a more efficient system design can be achieved by machine sorting of subdivisions via a conceptual, rather than alphabetical, approach. The author concludes that system architecture for browsable subject index displays must be redesigned to relieve the user of the burden of data organization
-
Jamieson, A.J.; Dolan, E.; Declerck, L.: Keyword searching vs. authority control in an online catalog (1986)
0.03
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- Abstract
- Presents the results of research carried out to discover whether or not the ability to search an online catalogue using keywords is a reasonably alternative to a built-in cross reference structure for variant forms. MARC records were checked against LoC authorities for references from non-preferred headings. All keywords in these references were then compared, and matched, when possible, with keywords in any MARC fields
-
Chan, L.M.: ¬A subject cataloging code? (1989)
0.03
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- Abstract
- Contribution to a thematic issue devoted to a subject control in on-line catalogues. Examines whether a subject cataloguing code is, at this point in time, necessary or economically feasible, as well as questioning who will develop such a code and if experiences with AACR2 should make librarians fearful or hopeful about similar work with subject headings.
-
Mitev, N.; Hildreth, C.R.: ¬Les catalogues interactifs en Grande-Bretagne et aux Etats-Unis (1989)
0.02
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- Source
- Bulletin des bibliothèques de France. 34(1989) no.1, S.22-47
-
Pulis, N.V.; Ludy, L.E.: Subject searching in an online catalog with authority control (1988)
0.02
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- Abstract
- Results of previous catalog research indicate that users want improvements in subject searching features, noting display of terms related to their topics as especially desirable. This study reports the findings of an examination of subject searchers' use of such a feature provided through online display of authority information from Library of Congress Subject Headings for terms used in the catalog. It was found that, of the terms entered by users, 78 percent were an exact or close match to catalog terms, and another 14 percent matched "see" references. Although additional information was available for nearly half of the searches performed, it was used in only 28 percent of these cases. It is suggested that improvements in subject searching features are needed to encourage use of available syndetic structures
-
Stone, A.T.: Subject searching in law library OPACs (1989)
0.02
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- Abstract
- Law libraries that introduce online catalogs to their publics often experience the same kinds of problems and benefits as other types of libraries. Nevertheless, certain issues for OPAC subject searching can be particularly challenging for law libraries. This paper addresses those issues, especially the impact on subject access of the design of shared OPACs and the special problems regarding subject searches on government agency names and titles of laws. Difficulties with law-related subject headings are also discussed. Finally, keyword and call number searching are examined from the law library perspective.
-
Klugman, S.: Failures in subject retrieval (1989)
0.02
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- Abstract
- Finding books by subject in large libraries is a difficult task at the best of times. Since users seldom think of their topic in terms of library subject headings, they encounter problems in finding matches. Online catalogs have helped somewhat by allowing keyword searching and Boolean combinations. They have also perpetuated some problems (lack of authority control and of cross references) and created new ones, namely requiring users to acquire complex skills. Libraries need to look carefully at the MARC format and at enhanced and enriched subject approaches. Machine-generated links and leads can provide more paths and wider access to subject information.
-
Riesthuis, G.J.A.; Colenbrander-Dijkman, A.-M.: Subject access to central catalogues : incompatibility issues of library classification systems and subject headings in subject cataloguing (1986)
0.02
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-
Walker, S.: ¬The Okapi online catalogue research projects (1989)
0.02
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- Date
- 16. 8.1998 11:22:08
