Search (91 results, page 1 of 5)

Kinsella, J.: Classification and the OPAC (1992) 0.04

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Content: Subject searching in the OPAC: success or failure? // Searching by numbers: the use of classification schemes in currently available OPACs // The wider picture: the role of classification in the future of subject searching

Walker, S.: Views on classification as a search tool on a computer (1991) 0.04
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Abstract

Classification numbers and shelf marks may be useful in online searching. Ways of using classification in online searching include: direct classification searching; use of classification as linking devices or pivots; and direct or indirect searching of classification schedules and indexes. Discusses each of these techniques, mainly in the context of library OPAC searching although they may be applied to other types of online retrieval systems. The use of classification numbers as pivots enabling online searchers to retrieve related references by means of automation searching of identical or related classification numbers is reviewed with reference to the OKAPI project; BLCMP project and the DDC online project

Markey, K.: Class number searching in an experimental online catalog (1986) 0.04

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Chan, L.M.: Library of Congress class numbers in online catalog searching (1989) 0.04

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Abstract: In addition to using title keywords and subject headings for searching in the online catalog, the searcher may also use class numbers as access points. Library of Congress class or call numbers are particular effective in certain kinds of specific-item subject searching and serve as supplements to keywords and descriptors, improving precision and recall. Class number searching in the database can produce unique results because these numbers collect citations in ways that differ from those of keywords and descriptors

Markey, K.: Subject searching in library catalogs : Before and after the introduction of online catalogs (1984) 0.04

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Markey, K.: Dewey Decimal Classification online project: integration of a library schedule and index into the subject searching capabilities of an online catalog (1985) 0.03

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Drabenstott, K.M.: Experiences with online catalogs in the USA using a classification system as a subject searching tool (1990) 0.03

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Abstract: Traces the development of online catalogs in the USA that feature subject searching and browsing through the machine-readable text of library classifications. Covers the author's experiences from 1983-86 developing and testing subject searching and browsing capabilities in an experimental online catalogue using the machine-readable 19th edition of the DDC. Suggests improvements to the original subject searching and browsing capabilities in the experimental online that would enable users to search and browse the DDC tables

Buxton, A.: Computer searching of UDC numbers (1993) 0.03

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Markey, K.; Demeyer, A.N.: ¬The concept of common subject headings in subject outline searching (1989) 0.03

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Buxton, A.B.: Computer searching of UDC numbers (1990) 0.03

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Slavic, A.: Interface to classification : some objectives and options (2006) 0.03
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Abstract

This is a preprint to be published in the Extensions & Corrections to the UDC. The paper explains the basic functions of browsing and searching that need to be supported in relation to analytico-synthetic classifications such as Universal Decimal Classification (UDC), irrespective of any specific, real-life implementation. UDC is an example of a semi-faceted system that can be used, for instance, for both post-coordinate searching and hierarchical/facet browsing. The advantages of using a classification for IR, however, depend on the strength of the GUI, which should provide a user-friendly interface to classification browsing and searching. The power of this interface is in supporting visualisation that will 'convert' what is potentially a user-unfriendly indexing language based on symbols, to a subject presentation that is easy to understand, search and navigate. A summary of the basic functions of searching and browsing a classification that may be provided on a user-friendly interface is given and examples of classification browsing interfaces are provided.

Huisman, F.: Anders zoeken met een classificatie (1999) 0.03

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Footnote: Übers. d. Titels: An alternative method of searching with the aid of classification

Ellis, D.; Vasconcelos, A.: Ranganathan and the Net : using facet analysis to search and organise the World Wide Web (1999) 0.03
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Abstract

This paper documents the continuing relevance of facet analysis as a technique for searching and organising WWW based materials. The 2 approaches underlying WWW searching and indexing - word and concept based indexing - are outlined. It is argued that facet analysis as an a posteriori approach to classification using words from the subject field as the concept terms in the classification derived represents an excellent approach to searching and organising the results of WWW searches using either search engines or search directories. Finally it is argued that the underlying philosophy of facet analysis is better suited to the disparate nature of WWW resources and searchers than the assumptions of contemporaray IR research.
This article gives a cheerfully brief and undetailed account of how to make a faceted classification system, then describes information retrieval and searching on the web. It concludes by saying that facets would be excellent in helping users search and browse the web, but offers no real clues as to how this can be done.

Hill, J.S.: Online classification number access : some practical considerations (1984) 0.03

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Source: Journal of academic librarianship. 10(1984), S.17-22

Koh, G.S.: Options in classification available through modern technology (1995) 0.03

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Abstract: System design options and user searching options are discussed. The problems of electronic union catalogs, including a 'virtual union catalog' in particular are considered and enhancements made possible through classification are explored. The combined system of subject headings and classification is presented as the model of the integrated subject searching tool which will meet individualized learning styles and user responsive vocabulary

Chan, L.M.: ¬The Library of Congress Classification System in an online environment (1990) 0.03

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Abstract: Advantages and disadvantages of on-line classification access are presented with special attention to Library of Congress Classification (LCC) features for subject browsing, known item-searching, enhancement of keyword and controlled vocabulary searching, and other unique retrieval capabilities.

Pasanen-Tuomainen, I.: Analysis of subject searching in the TENTTU books database (1992) 0.02
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Abstract

Presents a pilot study for an Internordic project to monitor the use of online catalogues in the Nordic technological university libraries. Focuses on the use of classification in subject searching, how the UDC is used and the extent of its use. Studies user interaction with the OPACs and improvements to information retrieval in the catalogues using the transaction log method to gather data. The pilot study examnines the TENTTU Books database which is the online union catalogue of the Helsinki Univ. of Technology Library, a multilingual database with true information retrieval. The Internordic study itself will make comparisons between the TENTTU system and the new Virginia Tech Library System. Discusses the users monitored, method of analysis, subject searching in the database, results and how the UDC codes were used. Compares this to other studies conducted in Finland and evaluates the project
Pollitt, A.S.: ¬The key role of classification and indexing in view-based searching (1998) 0.02
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Abstract

The application of classification schemes and thesauri to improve online information retrieval can be traced back to the beginnings of online searching itself, but the true potential for using knowledge structures in the user interface has yet to be realized. View-based searching seeks to exploit the classified arrangements in thesauri and existing classification schemes to improve the performance of such systems. HIBROWSE for EMBASE is a system which demonstrates the power of applying an approach to information retrieval which is strongly related to faceted classification. It does this by employing a point a click user interface with mutually constraining views utilising knowledge structure hierarchies for both query specification and the presentation of results. The relevance of this approach to library OPACs is discussed in the context of the digital library, concluding that out legacy of research in classification and indexing is more relevant than ever in the design of systems to cope with the problems of information access
Poynder, R.: Web research engines? (1996) 0.02
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Abstract

Describes the shortcomings of search engines for the WWW comparing their current capabilities to those of the first generation CD-ROM products. Some allow phrase searching and most are improving their Boolean searching. Few allow truncation, wild cards or nested logic. They are stateless, losing previous search criteria. Unlike the indexing and classification systems for today's CD-ROMs, those for Web pages are random, unstructured and of variable quality. Considers that at best Web search engines can only offer free text searching. Discusses whether automatic data classification systems such as Infoseek Ultra can overcome the haphazard nature of the Web with neural network technology, and whether Boolean search techniques may be redundant when replaced by technology such as the Euroferret search engine. However, artificial intelligence is rarely successful on huge, varied databases. Relevance ranking and automatic query expansion still use the same simple inverted indexes. Most Web search engines do nothing more than word counting. Further complications arise with foreign languages

Saye, J.D.: ¬"The Library of Congress Classification System in an online environment" : a reaction (1990) 0.02

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Abstract: This response to the paper by Dr. Chan, while accepting the merits of call number searching in the theoretical sense, raises questions about its usefulness in typical library situations. Compares searching on-line with call numbers and the use of classified catalogues and shelflists. Asks who is expected to do call number searching. Considers the availability of indexes to the classification scheme, problems created by the provision of only 1 class number per document, and the use of multiple cutter numbers to express the subject of a document.

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