-
Vizine-Goetz, D.: OCLC investigates using classification tools to organize Internet data (1998)
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- Imprint
- Urbana-Champaign, IL : Illinois University at Urbana-Champaign, Graduate School of Library and Information Science
- Source
- Visualizing subject access for 21st century information resources: Papers presented at the 1997 Clinic on Library Applications of Data Processing, 2-4 Mar 1997, Graduate School of Library and Information Science, University of Illinois at Urbana-Champaign. Ed.: P.A. Cochrane et al
-
Weinberg, B.H.: Library classification and information retrieval thesauri : comparison and contrasts (1995)
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- Abstract
- Thesauri-structured controlled vocabularies, designed for information retrieval-are compared with classification schemes developed for the arrangement of library materials and/or bibliographic records. The syndetic structure (BTs and NTs) within the alphabetic sequence of thesauri constitutes a hidden classification, but many thesauri include an explicit hierarchical display; some feature notation. The various structures and applications of thesauri are surveyed, with an emphasis on their increasing role in electronic information retrieval. The skills required for thesaurus construction are similar to those for the development of classification schemes. The distinction between these activities is expected to blur in the future.
-
Hauffe, H.: Sacherschließung bibliographischer Datenbanken und ihre Nutzung im Information Retrieval : Vortrag anläßlich der Tagung 'Automatisierte Sacherschließung - Status und Trends, Schloß Hofen, Lochau bei Bregenz, 17.4.-20.4.1989.
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-
Geißelmann, F.: ¬Die Online-Version der Regensburger Verbundklassifikation (1997)
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- Source
- Information und Dokumentation: Qualität und Qualifikation. Deutscher Dokumentartag 1997, Universität Regensburg, 24.-26.9.1997. Hrsg.: M. Ockenfeld u. G.J. Mantwill
-
Users Council urges continued emphasis on CORC project (1999)
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- Theme
- Information Gateway
-
Woods, E.W.; IFLA Section on classification and Indexing and Indexing and Information Technology; Joint Working Group on a Classification Format: Requirements for a format of classification data : Final report, July 1996 (1996)
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-
Gödert, W.: ¬Die Dezimalklassifikation im Online-Retrieval (1990)
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- Abstract
- Considers some structural features of UDC which may be of some importance to on-line information retrieval with synthesised UDC notations
-
Lim, E.: Southeast Asian subject gateways : an examination of their classification practices (2000)
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- Theme
- Information Gateway
-
Carlyle, A.: Exploring bibliographic classification in new environments (1997)
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- Imprint
- Medford, NJ : Information Today
-
Dumais, S.; Chen, H.: Hierarchical classification of Web content (2000)
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- Source
- Proceedings of ACM SIGIR 23rd International Conference on Research and Development in Information Retrieval. Ed. by N.J. Belkin, P. Ingwersen u. M.K. Leong
-
Chowdhury, S.; Chowdhury, G.G.: Using DDC to create a visual knowledge map as an aid to online information retrieval (2004)
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- Content
- 1. Introduction Web search engines and digital libraries usually expect the users to use search terms that most accurately represent their information needs. Finding the most appropriate search terms to represent an information need is an age old problem in information retrieval. Keyword or phrase search may produce good search results as long as the search terms or phrase(s) match those used by the authors and have been chosen for indexing by the concerned information retrieval system. Since this does not always happen, a large number of false drops are produced by information retrieval systems. The retrieval results become worse in very large systems that deal with millions of records, such as the Web search engines and digital libraries. Vocabulary control tools are used to improve the performance of text retrieval systems. Thesauri, the most common type of vocabulary control tool used in information retrieval, appeared in the late fifties, designed for use with the emerging post-coordinate indexing systems of that time. They are used to exert terminology control in indexing, and to aid in searching by allowing the searcher to select appropriate search terms. A large volume of literature exists describing the design features, and experiments with the use, of thesauri in various types of information retrieval systems (see for example, Furnas et.al., 1987; Bates, 1986, 1998; Milstead, 1997, and Shiri et al., 2002).
- Source
- Knowledge organization and the global information society: Proceedings of the 8th International ISKO Conference 13-16 July 2004, London, UK. Ed.: I.C. McIlwaine
-
Lee, H.-L.; Olson, H.A.: Hierarchical navigation : an exploration of Yahoo! directories (2005)
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- Abstract
- Although researchers have theorized the critical importance of classification in the organization of information, the classification approach seems to have given way to the alphabetical subject approach in retrieval tools widely used in libraries, and research an how users utilize classification or classification-like arrangements in information seeking has been scant. To better understand whether searchers consider classificatory structures a viable alternative to information retrieval, this article reports an a study of how 24 library and information science students used Yahoo! directories, a popular search service resembling classification, in completing an assigned simple task. Several issues emerged from the students' reporting of their search process and a comparison between hierarchical navigation and keyword searching: citation order of facets, precision vs. recall, and other factors influencing searchers' successes and preferences. The latter included search expertise, knowledge of the discipline, and time required to complete the search. Without a definitive conclusion, we suggest a number of directoons for further research.
-
Frâncu, V.; Sabo, C.-N.: Implementation of a UDC-based multilingual thesaurus in a library catalogue : the case of BiblioPhil (2010)
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- Abstract
- In order to enhance the use of Universal Decimal Classification (UDC) numbers in information retrieval, the authors have represented classification with multilingual thesaurus descriptors and implemented this solution in an automated way. The authors illustrate a solution implemented in a BiblioPhil library system. The standard formats used are UNIMARC for subject authority records (i.e. the UDC-based multilingual thesaurus) and MARC XML support for data transfer. The multilingual thesaurus was built according to existing standards, the constituent parts of the classification notations being used as the basis for search terms in the multilingual information retrieval. The verbal equivalents, descriptors and non-descriptors, are used to expand the number of concepts and are given in Romanian, English and French. This approach saves the time of the indexer and provides more user-friendly and easier access to the bibliographic information. The multilingual aspect of the thesaurus enhances information access for a greater number of online users
-
Järvelin, K.; Niemi, T.: Deductive information retrieval based on classifications (1993)
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- Abstract
- Modern fact databses contain abundant data classified through several classifications. Typically, users msut consult these classifications in separate manuals or files, thus making their effective use difficult. Contemporary database systems do little support deductive use of classifications. In this study we show how deductive data management techniques can be applied to the utilization of data value classifications. Computation of transitive class relationships is of primary importance here. We define a representation of classifications which supports transitive computation and present an operation-oriented deductive query language tailored for classification-based deductive information retrieval. The operations of this language are on the same abstraction level as relational algebra operations and can be integrated with these to form a powerful and flexible query language for deductive information retrieval. We define the integration of these operations and demonstrate the usefulness of the language in terms of several sample queries
- Source
- Journal of the American Society for Information Science. 44(1993) no.10, S.557-578
-
Svenonius, E.: Design of controlled vocabularies in the context of emerging technologies (1988)
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- Abstract
- Delineates on the changing role of vocabulary control devices such as classification, subject headings, and thesaurus. Identifies the basic issue in the design and development of these devices and their role in the changing information technology. The paper identifies the differentiations needed in the new roles of these devices in data base technology
- Source
- Library science with a slant to documentation and information studies. 25(1988), S.215-227
-
Scott, D.S.: Subject classification and natural-language processing for retrieval in large databases (1989)
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- Abstract
- New forms of man-machine interaction are becoming available that have great power for the delivery of information. But the scales of speed and capacity on which the computing machines operate demand new thoughts as to how information can be stored and retrieved. The objective of the discussion in this paper is to argue for a combination of natural-language processing and subject classification to be able to meet the demands
-
Buxton, A.B.: UDC in online systems (1991)
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- Source
- Standards for the international exchange of bibliographic information: papers presented at a course held at the School of Library, Archive and Information Studies, University College, London, 3-18 August 1990. Ed.: I.C. McIlwaine
-
Wheatley, A.: Subject trees on the Internet : a new role for bibliographic classification? (2000)
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- Abstract
- Internet information retrieval is largely the preserve of search engines and the even more popular subject trees. Subject trees have adapted principles of conventional bibliographic classification for structuring hierarchic browsing interfaces, thus providing easily used pathways to their selected resources. This combination of browsing and selectivity is especially valuable to untrained users. For the forseeable future, it appears that subject trees will remain the Internet's only practicable use of classificatory methods for information retrieval
-
Chan, L.M.: ¬The Library of Congress Classification System in an online environment (1990)
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- Footnote
- Paper presented at the 2nd Annette Lewis Phinazee Symposium on Classification as an enhancement of intellectual access to information in an online environment, held at the School of Library and Information Sciences, North Carolina Central University, Durham, North Carolina.
-
New roles for classification in libraries and information networks : presentations and reports from the 36th Allerton Institute, Oct. 23-25, 1994 (1995)
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- Content
- Enthält die Beiträge; COCHRANE, P.A.: New roles for classification in libraries and information networks; CHAN, L.M.: Classification, present and future; MOLHOLP, P.: Qualities of classification schemes for the information superhighway; DAHLBERG, I.: The future of classification in libraries and networks: a theoretical point of view; MITCHELL, J.: DDC21 and beyond: the Dewey Decimal Classification prepares for the future; McILWAINE, I.: Preparing traditional classifications for the future: Universal Decimal Classification; COATES, E.J.: BC2 and BSO: presentation at the 36th Allerton Institue, 1994 Session of preparing traditional classifications for the future; HILL, J.S.: Calssification: an administrative perspective; WYLY, B.: What lies ahead for classification in information networks? Report of a panel discussion; ZIADIE, A.M.: Classification in libraries and networks abroad: report of a panel discussion; LINCICUM, S.: Critical appraisal of the use of classification in the future - non-traditional uses of classification: report of a panel discussion; THOMAS, A.R.S.: New roles for classification in libraries and information networks: an excerpt bibliography; BROADBENT, E.: Classification access in the online catalog