-
Robbio, A. de; Maguolo, D.; Marini, A.: Scientific and general subject classifications in the digital world (2001)
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- Field
- Mathematik
-
Louie, A.J.; Maddox, E.L.; Washington, W.: Using faceted classification to provide structure for information architecture (2003)
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- Footnote
- Paper presented at the ASIS&T 2003 Information Architecture Summit, Portland, OR, 21-23 March 2003.
-
Gnoli, C.; Pusterla, L.; Bendiscioli, A.; Recinella, C.: Classification for collections mapping and query expansion (2016)
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- Pages
- S.23-31
-
Rocha, R.; Cobo, A.: Automatización de procesos de categorización jerárquica documental en las organizaciones (2010)
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- Source
- Rev. Aporte Santiaguino. 3(2010) no.1, S.93-100
-
Liu, S.: Decomposing DDC synthesized numbers (1996)
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- Abstract
- Much literature has been written speculating upon how classification can be used in online catalogs to improve information retrieval. While some empirical studies have been done exploring whether the direct use of traditional classification schemes designed for a manual environment is effective and efficient in the online environment, none has manipulated these manual classifications in such a w ay as to take full advantage of the power of both the classification and computer. It has been suggested by some authors, such as Wajenberg and Drabenstott, that this power could be realized if the individual components of synthesized DDC numbers could be identified and indexed. This paper looks at the feasibility of automatically decomposing DDC synthesized numbers and the implications of such decomposition for information retrieval. Based on an analysis of the instructions for synthesizing numbers in the main class Arts (700) and all DDC Tables, 17 decomposition rules were defined, 13 covering the Add Notes and four the Standard Subdivisions. 1,701 DDC synthesized numbers were decomposed by a computer system called DND (Dewey Number Decomposer), developed by the author. From the 1,701 numbers, 600 were randomly selected fo r examination by three judges, each evaluating 200 numbers. The decomposition success rate was 100% and it was concluded that synthesized DDC numbers can be accurately decomposed automatically. The study has implications for information retrieval, expert systems for assigning DDC numbers, automatic indexing, switching language development, enhancing classifiers' work, teaching library school students, and providing quality control for DDC number assignments. These implications were explored using a prototype retrieval system.
-
Beagle, D.: Visualizing keyword distribution across multidisciplinary c-space (2003)
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- Abstract
- But what happens to this awareness in a digital library? Can discursive formations be represented in cyberspace, perhaps through diagrams in a visualization interface? And would such a schema be helpful to a digital library user? To approach this question, it is worth taking a moment to reconsider what Radford is looking at. First, he looks at titles to see how the books cluster. To illustrate, I scanned one hundred books on the shelves of a college library under subclass HT 101-395, defined by the LCC subclass caption as Urban groups. The City. Urban sociology. Of the first 100 titles in this sequence, fifty included the word "urban" or variants (e.g. "urbanization"). Another thirty-five used the word "city" or variants. These keywords appear to mark their titles as the heart of this discursive formation. The scattering of titles not using "urban" or "city" used related terms such as "town," "community," or in one case "skyscrapers." So we immediately see some empirical correlation between keywords and classification. But we also see a problem with the commonly used search technique of title-keyword. A student interested in urban studies will want to know about this entire subclass, and may wish to browse every title available therein. A title-keyword search on "urban" will retrieve only half of the titles, while a search on "city" will retrieve just over a third. There will be no overlap, since no titles in this sample contain both words. The only place where both words appear in a common string is in the LCC subclass caption, but captions are not typically indexed in library Online Public Access Catalogs (OPACs). In a traditional library, this problem is mitigated when the student goes to the shelf looking for any one of the books and suddenly discovers a much wider selection than the keyword search had led him to expect. But in a digital library, the issue of non-retrieval can be more problematic, as studies have indicated. Micco and Popp reported that, in a study funded partly by the U.S. Department of Education, 65 of 73 unskilled users searching for material on U.S./Soviet foreign relations found some material but never realized they had missed a large percentage of what was in the database.
-
Geißelmann, F.: ¬Die Online-Version der Regensburger Verbundklassifikation (1997)
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Fast, K.; Leise, F.; Steckel, M.: Facets and controlled vocabularies : an annotated bibliography (2003)
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Fast, K.; Leise, F.; Steckel, M.: All about facets and controlled vocabularies (2002)
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Fast, K.; Leise, F.; Steckel, M.: What is a controlled vocabulary? (2002)
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Fast, K.; Leise, F.; Steckel, M.: Creating a controlled vocabulary (2003)
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Fast, K.; Leise, F.; Steckel, M.: Synonym rings and authority files (2003)
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Fast, K.; Leise, F.; Steckel, M.: Controlled vocabularies : a glosso-thesaurus (2003)
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-
Reiner, U.: Automatische DDC-Klassifizierung von bibliografischen Titeldatensätzen (2009)
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- Date
- 22. 8.2009 12:54:24
-
Van Dijck, P.: Introduction to XFML (2003)
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- Source
- http://www.xml.com/lpt/a/2003/01/22/xfml.html
-
Place, E.: Internationale Zusammenarbeit bei Internet Subject Gateways (1999)
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- Date
- 22. 6.2002 19:35:09
