-
Quick Guide to Publishing a Classification Scheme on the Semantic Web (2008)
0.12
0.11679555 = product of:
0.19465923 = sum of:
0.032756116 = weight(_text_:retrieval in 3061) [ClassicSimilarity], result of:
0.032756116 = score(doc=3061,freq=2.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.23394634 = fieldWeight in 3061, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0546875 = fieldNorm(doc=3061)
0.12377582 = weight(_text_:semantic in 3061) [ClassicSimilarity], result of:
0.12377582 = score(doc=3061,freq=8.0), product of:
0.19245663 = queryWeight, product of:
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.04628742 = queryNorm
0.64313614 = fieldWeight in 3061, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.0546875 = fieldNorm(doc=3061)
0.038127303 = product of:
0.076254606 = sum of:
0.076254606 = weight(_text_:web in 3061) [ClassicSimilarity], result of:
0.076254606 = score(doc=3061,freq=8.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.50479853 = fieldWeight in 3061, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.0546875 = fieldNorm(doc=3061)
0.5 = coord(1/2)
0.6 = coord(3/5)
- Abstract
- This document describes in brief how to express the content and structure of a classification scheme, and metadata about a classification scheme, in RDF using the SKOS vocabulary. RDF allows data to be linked to and/or merged with other RDF data by semantic web applications. The Semantic Web, which is based on the Resource Description Framework (RDF), provides a common framework that allows data to be shared and reused across application, enterprise, and community boundaries. Publishing classifications schemes in SKOS will unify the great many of existing classification efforts in the framework of the Semantic Web.
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Hanke, M.: Bibliothekarische Klassifikationssysteme im semantischen Web : zu Chancen und Problemen von Linked-data-Repräsentationen ausgewählter Klassifikationssysteme (2014)
0.07
0.07059685 = product of:
0.11766142 = sum of:
0.028076671 = weight(_text_:retrieval in 2463) [ClassicSimilarity], result of:
0.028076671 = score(doc=2463,freq=2.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.20052543 = fieldWeight in 2463, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.046875 = fieldNorm(doc=2463)
0.05304678 = weight(_text_:semantic in 2463) [ClassicSimilarity], result of:
0.05304678 = score(doc=2463,freq=2.0), product of:
0.19245663 = queryWeight, product of:
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.04628742 = queryNorm
0.2756298 = fieldWeight in 2463, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.046875 = fieldNorm(doc=2463)
0.03653796 = product of:
0.07307592 = sum of:
0.07307592 = weight(_text_:web in 2463) [ClassicSimilarity], result of:
0.07307592 = score(doc=2463,freq=10.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.48375595 = fieldWeight in 2463, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.046875 = fieldNorm(doc=2463)
0.5 = coord(1/2)
0.6 = coord(3/5)
- Abstract
- Pflege und Anwendung von Klassifikationssystemen für Informationsressourcen sind traditionell eine Kernkompetenz von Bibliotheken. Diese Systeme sind häufig historisch gewachsen und die Veröffentlichung verschiedener Systeme ist in der Vergangenheit typischerweise durch gedruckte Regelwerke oder proprietäre Datenbanken erfolgt. Die Technologien des semantischen Web erlauben es, Klassifikationssysteme in einer standardisierten und maschinenlesbaren Weise zu repräsentieren, sowie als Linked (Open) Data für die Nachnutzung zugänglich zu machen. Anhand ausgewählter Beispiele von Klassifikationssystemen, die bereits als Linked (Open) Data publiziert wurden, werden in diesem Artikel zentrale semantische und technische Fragen erörtert, sowie mögliche Einsatzgebiete und Chancen dargestellt. So kann beispielsweise die für die Maschinenlesbarkeit erforderliche starke Strukturierung von Daten im semantischen Web zum besseren Verständnis der Klassifikationssysteme beitragen und möglicherweise positive Impulse für ihre Weiterentwicklung liefern. Für das semantische Web aufbereitete Repräsentationen von Klassifikationssystemen können unter anderem zur Kataloganreicherung oder für die anwendungsbezogene Erstellung von Konkordanzen zwischen verschiedenen Klassifikations- bzw. Begriffssystemen genutzt werden..
- Theme
- Klassifikationssysteme im Online-Retrieval
Semantic Web
-
Slavic, A.: Classification revisited : a web of knowledge (2011)
0.06
0.06464557 = product of:
0.10774262 = sum of:
0.033088673 = weight(_text_:retrieval in 12) [ClassicSimilarity], result of:
0.033088673 = score(doc=12,freq=4.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.23632148 = fieldWeight in 12, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0390625 = fieldNorm(doc=12)
0.04420565 = weight(_text_:semantic in 12) [ClassicSimilarity], result of:
0.04420565 = score(doc=12,freq=2.0), product of:
0.19245663 = queryWeight, product of:
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.04628742 = queryNorm
0.22969149 = fieldWeight in 12, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.0390625 = fieldNorm(doc=12)
0.030448299 = product of:
0.060896598 = sum of:
0.060896598 = weight(_text_:web in 12) [ClassicSimilarity], result of:
0.060896598 = score(doc=12,freq=10.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.40312994 = fieldWeight in 12, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.0390625 = fieldNorm(doc=12)
0.5 = coord(1/2)
0.6 = coord(3/5)
- Abstract
- The vision of the semantic web is gradually unfolding and taking shape through a web of linked data, a part of which is built by capturing semantics stored in existing knowledge organization systems (KOS), subject metadata and resource metadata. The content of vast bibliographic collections is currently categorized by some widely used bibliographic classification and we may soon see them being mined for information and linked in a meaningful way across the web. Bibliographic classifications are designed for knowledge mediation, which offers both a rich terminology and different ways in which concepts can be categorized and related to each other in the universe of knowledge. From 1990 to 2010 they have been used in various resource discovery services on the web, and they continue to be used to support information integration in a number of international digital library projects. In this chapter we will revisit some of the ways in which universal classifications, as language-independent concept schemes, can assist humans and computers in structuring and presenting information and formulating queries. Most importantly, we will highlight issues important to understanding bibliographic classifications, identifying both their unused potential and their technical limitations.
- Source
- Innovations in information retrieval: perspectives for theory and practice. Eds.: A. Foster, u. P. Rafferty
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Slavic-Overfield, A.: Classification management and use in a networked environment : the case of the Universal Decimal Classification (2005)
0.06
0.06171259 = product of:
0.10285431 = sum of:
0.03743556 = weight(_text_:retrieval in 2191) [ClassicSimilarity], result of:
0.03743556 = score(doc=2191,freq=8.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.26736724 = fieldWeight in 2191, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.03125 = fieldNorm(doc=2191)
0.050012987 = weight(_text_:semantic in 2191) [ClassicSimilarity], result of:
0.050012987 = score(doc=2191,freq=4.0), product of:
0.19245663 = queryWeight, product of:
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.04628742 = queryNorm
0.25986627 = fieldWeight in 2191, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.03125 = fieldNorm(doc=2191)
0.0154057555 = product of:
0.030811511 = sum of:
0.030811511 = weight(_text_:web in 2191) [ClassicSimilarity], result of:
0.030811511 = score(doc=2191,freq=4.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.2039694 = fieldWeight in 2191, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.03125 = fieldNorm(doc=2191)
0.5 = coord(1/2)
0.6 = coord(3/5)
- Abstract
- In the Internet information space, advanced information retrieval (IR) methods and automatic text processing are used in conjunction with traditional knowledge organization systems (KOS). New information technology provides a platform for better KOS publishing, exploitation and sharing both for human and machine use. Networked KOS services are now being planned and developed as powerful tools for resource discovery. They will enable automatic contextualisation, interpretation and query matching to different indexing languages. The Semantic Web promises to be an environment in which the quality of semantic relationships in bibliographic classification systems can be fully exploited. Their use in the networked environment is, however, limited by the fact that they are not prepared or made available for advanced machine processing. The UDC was chosen for this research because of its widespread use and its long-term presence in online information retrieval systems. It was also the first system to be used for the automatic classification of Internet resources, and the first to be made available as a classification tool on the Web. The objective of this research is to establish the advantages of using UDC for information retrieval in a networked environment, to highlight the problems of automation and classification exchange, and to offer possible solutions. The first research question was is there enough evidence of the use of classification on the Internet to justify further development with this particular environment in mind? The second question is what are the automation requirements for the full exploitation of UDC and its exchange? The third question is which areas are in need of improvement and what specific recommendations can be made for implementing the UDC in a networked environment? A summary of changes required in the management and development of the UDC to facilitate its full adaptation for future use is drawn from this analysis.
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Ferris, A.M.: If you buy it, will they use it? : a case study on the use of Classification web (2006)
0.06
0.06116395 = product of:
0.15290987 = sum of:
0.032756116 = weight(_text_:retrieval in 88) [ClassicSimilarity], result of:
0.032756116 = score(doc=88,freq=2.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.23394634 = fieldWeight in 88, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0546875 = fieldNorm(doc=88)
0.120153755 = sum of:
0.076254606 = weight(_text_:web in 88) [ClassicSimilarity], result of:
0.076254606 = score(doc=88,freq=8.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.50479853 = fieldWeight in 88, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.0546875 = fieldNorm(doc=88)
0.043899145 = weight(_text_:22 in 88) [ClassicSimilarity], result of:
0.043899145 = score(doc=88,freq=2.0), product of:
0.16209066 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04628742 = queryNorm
0.2708308 = fieldWeight in 88, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=88)
0.4 = coord(2/5)
- Abstract
- This paper presents a study conducted at the University of Colorado at Boulder (CU-Boulder) to assess the extent to which its catalogers were using Classification Web (Class Web), the subscription-based, online cataloging documentation resource provided by the Library of Congress. In addition, this paper will explore assumptions made by management regarding CU-Boulder catalogers' use of the product, possible reasons for the lower-than-expected use, and recommendations for promoting a more efficient and cost-effective use of Class Web at other institutions similar to CU-Boulder.
- Date
- 10. 9.2000 17:38:22
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Doyle, B.: ¬The classification and evaluation of Content Management Systems (2003)
0.06
0.059691615 = product of:
0.14922903 = sum of:
0.03743556 = weight(_text_:retrieval in 2871) [ClassicSimilarity], result of:
0.03743556 = score(doc=2871,freq=2.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.26736724 = fieldWeight in 2871, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=2871)
0.11179347 = sum of:
0.061623022 = weight(_text_:web in 2871) [ClassicSimilarity], result of:
0.061623022 = score(doc=2871,freq=4.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.4079388 = fieldWeight in 2871, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.0625 = fieldNorm(doc=2871)
0.05017045 = weight(_text_:22 in 2871) [ClassicSimilarity], result of:
0.05017045 = score(doc=2871,freq=2.0), product of:
0.16209066 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04628742 = queryNorm
0.30952093 = fieldWeight in 2871, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=2871)
0.4 = coord(2/5)
- Abstract
- This is a report on how Doyle and others made a faceted classification scheme for content management systems and made it browsable on the web (see CMS Review in Example Web Sites, below). They discuss why they did it, how, their use of OPML and XFML, how they did research to find terms and categories, and they also include their taxonomy. It is interesting to see facets used in a business environment.
- Date
- 30. 7.2004 12:22:52
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Jenkins, C.: Automatic classification of Web resources using Java and Dewey Decimal Classification (1998)
0.06
0.057077475 = product of:
0.14269368 = sum of:
0.032756116 = weight(_text_:retrieval in 1673) [ClassicSimilarity], result of:
0.032756116 = score(doc=1673,freq=2.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.23394634 = fieldWeight in 1673, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0546875 = fieldNorm(doc=1673)
0.10993756 = sum of:
0.06603842 = weight(_text_:web in 1673) [ClassicSimilarity], result of:
0.06603842 = score(doc=1673,freq=6.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.43716836 = fieldWeight in 1673, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.0546875 = fieldNorm(doc=1673)
0.043899145 = weight(_text_:22 in 1673) [ClassicSimilarity], result of:
0.043899145 = score(doc=1673,freq=2.0), product of:
0.16209066 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04628742 = queryNorm
0.2708308 = fieldWeight in 1673, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=1673)
0.4 = coord(2/5)
- Abstract
- The Wolverhampton Web Library (WWLib) is a WWW search engine that provides access to UK based information. The experimental version developed in 1995, was a success but highlighted the need for a much higher degree of automation. An interesting feature of the experimental WWLib was that it organised information according to DDC. Discusses the advantages of classification and describes the automatic classifier that is being developed in Java as part of the new, fully automated WWLib
- Date
- 1. 8.1996 22:08:06
- Footnote
- Contribution to a special issue devoted to the Proceedings of the 7th International World Wide Web Conference, held 14-18 April 1998, Brisbane, Australia; vgl. auch: http://www7.scu.edu.au/programme/posters/1846/com1846.htm.
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Ardo, A.; Lundberg, S.: ¬A regional distributed WWW search and indexing service : the DESIRE way (1998)
0.05
0.052426238 = product of:
0.13106559 = sum of:
0.028076671 = weight(_text_:retrieval in 4190) [ClassicSimilarity], result of:
0.028076671 = score(doc=4190,freq=2.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.20052543 = fieldWeight in 4190, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.046875 = fieldNorm(doc=4190)
0.10298892 = sum of:
0.06536108 = weight(_text_:web in 4190) [ClassicSimilarity], result of:
0.06536108 = score(doc=4190,freq=8.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.43268442 = fieldWeight in 4190, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.046875 = fieldNorm(doc=4190)
0.03762784 = weight(_text_:22 in 4190) [ClassicSimilarity], result of:
0.03762784 = score(doc=4190,freq=2.0), product of:
0.16209066 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04628742 = queryNorm
0.23214069 = fieldWeight in 4190, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=4190)
0.4 = coord(2/5)
- Abstract
- Creates an open, metadata aware system for distributed, collaborative WWW indexing. The system has 3 main components: a harvester (for collecting information), a database (for making the collection searchable), and a user interface (for making the information available). all components can be distributed across networked computers, thus supporting scalability. The system is metadata aware and thus allows searches on several fields including title, document author and URL. Nordic Web Index (NWI) is an application using this system to create a regional Nordic Web-indexing service. NWI is built using 5 collaborating service points within the Nordic countries. The NWI databases can be used to build additional services
- Date
- 1. 8.1996 22:08:06
- Footnote
- Contribution to a special issue devoted to the Proceedings of the 7th International World Wide Web Conference, held 14-18 April 1998, Brisbane, Australia
- Object
- Nordic Web Index
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Hill, J.S.: Online classification number access : some practical considerations (1984)
0.05
0.05001663 = product of:
0.12504157 = sum of:
0.07487112 = weight(_text_:retrieval in 7684) [ClassicSimilarity], result of:
0.07487112 = score(doc=7684,freq=2.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.5347345 = fieldWeight in 7684, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.125 = fieldNorm(doc=7684)
0.05017045 = product of:
0.1003409 = sum of:
0.1003409 = weight(_text_:22 in 7684) [ClassicSimilarity], result of:
0.1003409 = score(doc=7684,freq=2.0), product of:
0.16209066 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04628742 = queryNorm
0.61904186 = fieldWeight in 7684, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.125 = fieldNorm(doc=7684)
0.5 = coord(1/2)
0.4 = coord(2/5)
- Source
- Journal of academic librarianship. 10(1984), S.17-22
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Devadason, F.J.; Intaraksa, N.; Patamawongjariya, P.; Desai, K.: Faceted indexing based system for organizing and accessing Internet resources (2002)
0.05
0.048639663 = product of:
0.0810661 = sum of:
0.02316207 = weight(_text_:retrieval in 97) [ClassicSimilarity], result of:
0.02316207 = score(doc=97,freq=4.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.16542503 = fieldWeight in 97, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.02734375 = fieldNorm(doc=97)
0.030943954 = weight(_text_:semantic in 97) [ClassicSimilarity], result of:
0.030943954 = score(doc=97,freq=2.0), product of:
0.19245663 = queryWeight, product of:
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.04628742 = queryNorm
0.16078404 = fieldWeight in 97, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.02734375 = fieldNorm(doc=97)
0.026960073 = product of:
0.053920146 = sum of:
0.053920146 = weight(_text_:web in 97) [ClassicSimilarity], result of:
0.053920146 = score(doc=97,freq=16.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.35694647 = fieldWeight in 97, product of:
4.0 = tf(freq=16.0), with freq of:
16.0 = termFreq=16.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.02734375 = fieldNorm(doc=97)
0.5 = coord(1/2)
0.6 = coord(3/5)
- Abstract
- Organizing and providing access to the resources an the Internet has been a problem area in spite of the availability of sophisticated search engines and other Software tools. There have been several attempts to organize the resources an the World Wide Web. Some of them have tried to use traditional library classification schemes such as the Library of Congress Classification, the Dewey Decimal Classification and others. However there is a need to assign proper subject headings to them and present them in a logical or hierarchical sequence to cater to the need for browsing. This paper attempts to describe an experimental system designed to organize and provide access to web documents using a faceted pre-coordinate indexing system based an the Deep Structure Indexing System (DSIS) derived from POPSI (Postulate based Permuted Subject Indexing) of Bhattacharyya, and the facet analysis and chain indexing system of Ranganathan. A prototype Software System has been designed to create a database of records specifying Web documents according to the Dublin Core and to input a faceted subject heading according to DSIS. Synonymous terms are added to the Standard terms in the heading using appropriate symbols. Once the data are entered along with a description and the URL of the web document, the record is stored in the System. More than one faceted subject heading can be assigned to a record depending an the content of the original document. The System stores the Surrogates and keeps the faceted subject headings separately after establishing a link. The search is carried out an index entries derived from the faceted subject heading using the chain indexing technique. If a single term is Input, the System searches for its presence in the faceted subject headings and displays the subject headings in a sorted sequence reflecting an organizing sequence. If the number of retrieved Keadings is too large (running into more than a page) the user has the option of entering another search term to be searched in combination. The System searches subject headings already retrieved and looks for those containing the second term. The retrieved faceted subject headings can be displayed and browsed. When the relevant subject heading is selected the system displays the records with their URLs. Using the URL, the original document an the web can be accessed. The prototype system developed in a Windows NT environment using ASP and a web server is under rigorous testing. The database and Index management routines need further development.
An interesting but somewhat confusing article telling how the writers described web pages with Dublin Core metadata, including a faceted classification, and built a system that lets users browse the collection through the facets. They seem to want to cover too much in a short article, and unnecessary space is given over to screen shots showing how Dublin Core metadata was entered. The screen shots of the resulting browsable system are, unfortunately, not as enlightening as one would hope, and there is no discussion of how the system was actually written or the technology behind it. Still, it could be worth reading as an example of such a system and how it is treated in journals.
- Footnote
- Vgl. auch: Devadason, F.J.: Facet analysis and Semantic Web: musings of a student of Ranganathan. Unter: http://www.geocities.com/devadason.geo/FASEMWEB.html#FacetedIndex.
- Theme
- Klassifikationssysteme im Online-Retrieval
Verbale Doksprachen im Online-Retrieval
-
Lösse, M.; Svensson, L.: "Classification at a Crossroad" : Internationales UDC-Seminar 2009 in Den Haag, Niederlande (2010)
0.05
0.045588408 = product of:
0.11397102 = sum of:
0.028076671 = weight(_text_:retrieval in 4379) [ClassicSimilarity], result of:
0.028076671 = score(doc=4379,freq=2.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.20052543 = fieldWeight in 4379, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.046875 = fieldNorm(doc=4379)
0.085894346 = sum of:
0.03268054 = weight(_text_:web in 4379) [ClassicSimilarity], result of:
0.03268054 = score(doc=4379,freq=2.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.21634221 = fieldWeight in 4379, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.046875 = fieldNorm(doc=4379)
0.0532138 = weight(_text_:22 in 4379) [ClassicSimilarity], result of:
0.0532138 = score(doc=4379,freq=4.0), product of:
0.16209066 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04628742 = queryNorm
0.32829654 = fieldWeight in 4379, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=4379)
0.4 = coord(2/5)
- Abstract
- Am 29. und 30. Oktober 2009 fand in der Königlichen Bibliothek in Den Haag das zweite internationale UDC-Seminar zum Thema "Classification at a Crossroad" statt. Organisiert wurde diese Konferenz - wie auch die erste Konferenz dieser Art im Jahr 2007 - vom UDC-Konsortium (UDCC). Im Mittelpunkt der diesjährigen Veranstaltung stand die Erschließung des World Wide Web unter besserer Nutzung von Klassifikationen (im Besonderen natürlich der UDC), einschließlich benutzerfreundlicher Repräsentationen von Informationen und Wissen. Standards, neue Technologien und Dienste, semantische Suche und der multilinguale Zugriff spielten ebenfalls eine Rolle. 135 Teilnehmer aus 35 Ländern waren dazu nach Den Haag gekommen. Das Programm umfasste mit 22 Vorträgen aus 14 verschiedenen Ländern eine breite Palette, wobei Großbritannien mit fünf Beiträgen am stärksten vertreten war. Die Tagesschwerpunkte wurden an beiden Konferenztagen durch die Eröffnungsvorträge gesetzt, die dann in insgesamt sechs thematischen Sitzungen weiter vertieft wurden.
- Date
- 22. 1.2010 15:06:54
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Dumais, S.; Chen, H.: Hierarchical classification of Web content (2000)
0.04
0.044837344 = product of:
0.11209336 = sum of:
0.07941282 = weight(_text_:retrieval in 492) [ClassicSimilarity], result of:
0.07941282 = score(doc=492,freq=4.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.5671716 = fieldWeight in 492, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.09375 = fieldNorm(doc=492)
0.03268054 = product of:
0.06536108 = sum of:
0.06536108 = weight(_text_:web in 492) [ClassicSimilarity], result of:
0.06536108 = score(doc=492,freq=2.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.43268442 = fieldWeight in 492, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.09375 = fieldNorm(doc=492)
0.5 = coord(1/2)
0.4 = coord(2/5)
- 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
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Tudhope, D.; Binding, C.; Blocks, D.; Cuncliffe, D.: Representation and retrieval in faceted systems (2003)
0.04
0.043724276 = product of:
0.10931069 = sum of:
0.04679445 = weight(_text_:retrieval in 2703) [ClassicSimilarity], result of:
0.04679445 = score(doc=2703,freq=8.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.33420905 = fieldWeight in 2703, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0390625 = fieldNorm(doc=2703)
0.062516235 = weight(_text_:semantic in 2703) [ClassicSimilarity], result of:
0.062516235 = score(doc=2703,freq=4.0), product of:
0.19245663 = queryWeight, product of:
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.04628742 = queryNorm
0.32483283 = fieldWeight in 2703, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.0390625 = fieldNorm(doc=2703)
0.4 = coord(2/5)
- Abstract
- This paper discusses two inter-related themes: the retrieval potential of faceted thesauri and XML representations of fundamental facets. Initial findings are discussed from the ongoing 'FACET' project, in collaboration with the National Museum of Science and Industry. The work discussed seeks to take advantage of the structure afforded by faceted systems for multi-term queries and flexible matching, focusing in this paper an the Art and Architecture Thesaurus. A multi-term matching function yields ranked results with partial matches via semantic term expansion, based an a measure of distance over the semantic index space formed by thesaurus relationships. Our intention is to drive the system from general representations and a common query structure and interface. To this end, we are developing an XML representation based an work by the Classification Research Group an fundamental facets or categories. The XML representation maps categories to particular thesauri and hierarchies. The system interface, which is configured by the mapping, incorporates a thesaurus browser with navigation history together with a term search facility and drag and drop query builder.
- Theme
- Klassifikationssysteme im Online-Retrieval
Verbale Doksprachen im Online-Retrieval
-
Kwasnik, B.H.: ¬The role of classification in knowledge representation (1999)
0.04
0.039354023 = product of:
0.09838505 = sum of:
0.028076671 = weight(_text_:retrieval in 2464) [ClassicSimilarity], result of:
0.028076671 = score(doc=2464,freq=2.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.20052543 = fieldWeight in 2464, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.046875 = fieldNorm(doc=2464)
0.07030838 = sum of:
0.03268054 = weight(_text_:web in 2464) [ClassicSimilarity], result of:
0.03268054 = score(doc=2464,freq=2.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.21634221 = fieldWeight in 2464, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.046875 = fieldNorm(doc=2464)
0.03762784 = weight(_text_:22 in 2464) [ClassicSimilarity], result of:
0.03762784 = score(doc=2464,freq=2.0), product of:
0.16209066 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04628742 = queryNorm
0.23214069 = fieldWeight in 2464, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2464)
0.4 = coord(2/5)
- Abstract
- A fascinating, broad-ranging article about classification, knowledge, and how they relate. Hierarchies, trees, paradigms (a two-dimensional classification that can look something like a spreadsheet), and facets are covered, with descriptions of how they work and how they can be used for knowledge discovery and creation. Kwasnick outlines how to make a faceted classification: choose facets, develop facets, analyze entities using the facets, and make a citation order. Facets are useful for many reasons: they do not require complete knowledge of the entire body of material; they are hospitable, flexible, and expressive; they do not require a rigid background theory; they can mix theoretical structures and models; and they allow users to view things from many perspectives. Facets do have faults: it can be hard to pick the right ones; it is hard to show relations between them; and it is difficult to visualize them. The coverage of the other methods is equally thorough and there is much to consider for anyone putting a classification on the web.
- Source
- Library trends. 48(1999) no.1, S.22-47
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Heiser, W.J.: Zoeken in de bibliografische ruimte : de bijzondere rol van de hierarchische classificaties bij geautomatiseerde onderwerpsontsluiting (1993)
0.04
0.03785761 = product of:
0.094644025 = sum of:
0.032756116 = weight(_text_:retrieval in 3121) [ClassicSimilarity], result of:
0.032756116 = score(doc=3121,freq=2.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.23394634 = fieldWeight in 3121, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0546875 = fieldNorm(doc=3121)
0.06188791 = weight(_text_:semantic in 3121) [ClassicSimilarity], result of:
0.06188791 = score(doc=3121,freq=2.0), product of:
0.19245663 = queryWeight, product of:
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.04628742 = queryNorm
0.32156807 = fieldWeight in 3121, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.0546875 = fieldNorm(doc=3121)
0.4 = coord(2/5)
- Abstract
- The universal classification schemes developed in the 19th century are a direct response to the social changes of that era. However, the increasing use of automation in libraries has highlighted the need fir greater precision in hierarchical structures. A thesaurus of used and related headings can be employed to show the spatial relationship of semantic terms. The resulting search profile can be further enhanced by the addition of citation weighting. To assist users to define searches more accurately libraries using large general classification schemes should consider adding supplementary classification data to records
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Lim, E.: Southeast Asian subject gateways : an examination of their classification practices (2000)
0.04
0.037512474 = product of:
0.09378118 = sum of:
0.056153342 = weight(_text_:retrieval in 6040) [ClassicSimilarity], result of:
0.056153342 = score(doc=6040,freq=2.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.40105087 = fieldWeight in 6040, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.09375 = fieldNorm(doc=6040)
0.03762784 = product of:
0.07525568 = sum of:
0.07525568 = weight(_text_:22 in 6040) [ClassicSimilarity], result of:
0.07525568 = score(doc=6040,freq=2.0), product of:
0.16209066 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04628742 = queryNorm
0.46428138 = fieldWeight in 6040, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=6040)
0.5 = coord(1/2)
0.4 = coord(2/5)
- Date
- 22. 6.2002 19:42:47
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Lin, Z.Y.: Classification practice and implications for subject directories of the Chinese language Web-based digital library (2000)
0.04
0.035533555 = product of:
0.08883388 = sum of:
0.056153342 = weight(_text_:retrieval in 3438) [ClassicSimilarity], result of:
0.056153342 = score(doc=3438,freq=2.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.40105087 = fieldWeight in 3438, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.09375 = fieldNorm(doc=3438)
0.03268054 = product of:
0.06536108 = sum of:
0.06536108 = weight(_text_:web in 3438) [ClassicSimilarity], result of:
0.06536108 = score(doc=3438,freq=2.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.43268442 = fieldWeight in 3438, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.09375 = fieldNorm(doc=3438)
0.5 = coord(1/2)
0.4 = coord(2/5)
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Robbins, F.: ¬An exploration of the application of classification systems as a method for resource delivery on the World Wide Web (1999)
0.04
0.035533555 = product of:
0.08883388 = sum of:
0.056153342 = weight(_text_:retrieval in 400) [ClassicSimilarity], result of:
0.056153342 = score(doc=400,freq=2.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.40105087 = fieldWeight in 400, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.09375 = fieldNorm(doc=400)
0.03268054 = product of:
0.06536108 = sum of:
0.06536108 = weight(_text_:web in 400) [ClassicSimilarity], result of:
0.06536108 = score(doc=400,freq=2.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.43268442 = fieldWeight in 400, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.09375 = fieldNorm(doc=400)
0.5 = coord(1/2)
0.4 = coord(2/5)
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Poynder, R.: Web research engines? (1996)
0.03
0.034067273 = product of:
0.08516818 = sum of:
0.048630223 = weight(_text_:retrieval in 5698) [ClassicSimilarity], result of:
0.048630223 = score(doc=5698,freq=6.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.34732026 = fieldWeight in 5698, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.046875 = fieldNorm(doc=5698)
0.03653796 = product of:
0.07307592 = sum of:
0.07307592 = weight(_text_:web in 5698) [ClassicSimilarity], result of:
0.07307592 = score(doc=5698,freq=10.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.48375595 = fieldWeight in 5698, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.046875 = fieldNorm(doc=5698)
0.5 = coord(1/2)
0.4 = coord(2/5)
- 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
- Theme
- Verbale Doksprachen im Online-Retrieval
Klassifikationssysteme im Online-Retrieval
Semantisches Umfeld in Indexierung u. Retrieval
-
Gödert, W.: Facet classification in online retrieval (1991)
0.03
0.032464173 = product of:
0.08116043 = sum of:
0.06190324 = weight(_text_:retrieval in 5825) [ClassicSimilarity], result of:
0.06190324 = score(doc=5825,freq=14.0), product of:
0.14001551 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.04628742 = queryNorm
0.442117 = fieldWeight in 5825, product of:
3.7416575 = tf(freq=14.0), with freq of:
14.0 = termFreq=14.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0390625 = fieldNorm(doc=5825)
0.019257195 = product of:
0.03851439 = sum of:
0.03851439 = weight(_text_:web in 5825) [ClassicSimilarity], result of:
0.03851439 = score(doc=5825,freq=4.0), product of:
0.15105948 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.04628742 = queryNorm
0.25496176 = fieldWeight in 5825, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.0390625 = fieldNorm(doc=5825)
0.5 = coord(1/2)
0.4 = coord(2/5)
- Abstract
- The study of faceted classification systems has primarily been directed towards application for precombined catalogues or bibliographies, not so much for use in post coordinated retrieval systems. Argues that faceted classification systems in some respects are superior to other techniques of on-line retrieval as far as facet and concept analysis is combined with an expressive notational system in order to guide a form of retrieval which will use Boolean operators (for combining the facets regardless of one special citation order) and truncation for retrieving hierarchically different sets of documents. This point of view is demonstrated by 2 examples. The 1st one uses a short classification system derived from B. Buchanan and the 2nd is built upon the classification system used by Library and Information Science Abstracts (LISA). Further discussion is concerned with some possible consequences which could be derived from a retrieval with PRECIS strings
"Online retrieval" conjures up a very different mental image now than in 1991, the year this article was written, and the year Tim Berners-Lee first revealed the new hypertext system he called the World Wide Web. Gödert shows that truncation and Boolean logic, combined with notation from a faceted classification system, will be a powerful way of searching for information. It undoubtedly is, but no system built now would require a user searching for material on "nervous systems of bone fish" to enter "Fdd$ and Leaa$". This is worth reading for someone interested in seeing how searching and facets can go together, but the web has made this article quite out of date.
- Theme
- Klassifikationssysteme im Online-Retrieval
