-
Renear, A.H.; Wickett, K.M.; Urban, R.J.; Dubin, D.; Shreeves, S.L.: Collection/item metadata relationships (2008)
0.01
0.009250606 = product of:
0.018501213 = sum of:
0.018501213 = product of:
0.037002426 = sum of:
0.037002426 = weight(_text_:22 in 2623) [ClassicSimilarity], result of:
0.037002426 = score(doc=2623,freq=2.0), product of:
0.15939656 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045518078 = queryNorm
0.23214069 = fieldWeight in 2623, 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=2623)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
-
Bittner, T.; Donnelly, M.; Winter, S.: Ontology and semantic interoperability (2006)
0.01
0.009250606 = product of:
0.018501213 = sum of:
0.018501213 = product of:
0.037002426 = sum of:
0.037002426 = weight(_text_:22 in 4820) [ClassicSimilarity], result of:
0.037002426 = score(doc=4820,freq=2.0), product of:
0.15939656 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045518078 = queryNorm
0.23214069 = fieldWeight in 4820, 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=4820)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 3.12.2016 18:39:22
-
Beppler, F.D.; Fonseca, F.T.; Pacheco, R.C.S.: Hermeneus: an architecture for an ontology-enabled information retrieval (2008)
0.01
0.009250606 = product of:
0.018501213 = sum of:
0.018501213 = product of:
0.037002426 = sum of:
0.037002426 = weight(_text_:22 in 3261) [ClassicSimilarity], result of:
0.037002426 = score(doc=3261,freq=2.0), product of:
0.15939656 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045518078 = queryNorm
0.23214069 = fieldWeight in 3261, 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=3261)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 28.11.2016 12:43:22
-
Zeng, M.L.; Fan, W.; Lin, X.: SKOS for an integrated vocabulary structure (2008)
0.01
0.0087215565 = product of:
0.017443113 = sum of:
0.017443113 = product of:
0.034886226 = sum of:
0.034886226 = weight(_text_:22 in 2654) [ClassicSimilarity], result of:
0.034886226 = score(doc=2654,freq=4.0), product of:
0.15939656 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045518078 = queryNorm
0.21886435 = fieldWeight in 2654, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03125 = fieldNorm(doc=2654)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- In order to transfer the Chinese Classified Thesaurus (CCT) into a machine-processable format and provide CCT-based Web services, a pilot study has been conducted in which a variety of selected CCT classes and mapped thesaurus entries are encoded with SKOS. OWL and RDFS are also used to encode the same contents for the purposes of feasibility and cost-benefit comparison. CCT is a collected effort led by the National Library of China. It is an integration of the national standards Chinese Library Classification (CLC) 4th edition and Chinese Thesaurus (CT). As a manually created mapping product, CCT provides for each of the classes the corresponding thesaurus terms, and vice versa. The coverage of CCT includes four major clusters: philosophy, social sciences and humanities, natural sciences and technologies, and general works. There are 22 main-classes, 52,992 sub-classes and divisions, 110,837 preferred thesaurus terms, 35,690 entry terms (non-preferred terms), and 59,738 pre-coordinated headings (Chinese Classified Thesaurus, 2005) Major challenges of encoding this large vocabulary comes from its integrated structure. CCT is a result of the combination of two structures (illustrated in Figure 1): a thesaurus that uses ISO-2788 standardized structure and a classification scheme that is basically enumerative, but provides some flexibility for several kinds of synthetic mechanisms Other challenges include the complex relationships caused by differences of granularities of two original schemes and their presentation with various levels of SKOS elements; as well as the diverse coordination of entries due to the use of auxiliary tables and pre-coordinated headings derived from combining classes, subdivisions, and thesaurus terms, which do not correspond to existing unique identifiers. The poster reports the progress, shares the sample SKOS entries, and summarizes problems identified during the SKOS encoding process. Although OWL Lite and OWL Full provide richer expressiveness, the cost-benefit issues and the final purposes of encoding CCT raise questions of using such approaches.
- Source
- Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
-
Ehrig, M.; Studer, R.: Wissensvernetzung durch Ontologien (2006)
0.01
0.007890998 = product of:
0.015781997 = sum of:
0.015781997 = product of:
0.031563994 = sum of:
0.031563994 = weight(_text_:b in 5901) [ClassicSimilarity], result of:
0.031563994 = score(doc=5901,freq=2.0), product of:
0.16126883 = queryWeight, product of:
3.542962 = idf(docFreq=3476, maxDocs=44218)
0.045518078 = queryNorm
0.19572285 = fieldWeight in 5901, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.542962 = idf(docFreq=3476, maxDocs=44218)
0.0390625 = fieldNorm(doc=5901)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- In der Informatik sind Ontologien formale Modelle eines Anwendungsbereiches, die die Kommunikation zwischen menschlichen und/oder maschinellen Akteuren unterstützen und damit den Austausch und das Teilen von Wissen in Unternehmen erleichtern. Ontologien zur strukturierten Darstellung von Wissen zu nutzen hat deshalb in den letzten Jahren zunehmende Verbreitung gefunden. Schon heute existieren weltweit tausende Ontologien. Um Interoperabilität zwischen darauf aufbauenden Softwareagenten oder Webservices zu ermöglichen, ist die semantische Integration der Ontologien eine zwingendnotwendige Vorraussetzung. Wie man sieh leicht verdeutlichen kann, ist die rein manuelle Erstellung der Abbildungen ab einer bestimmten Größe. Komplexität und Veränderungsrate der Ontologien nicht mehr ohne weiteres möglich. Automatische oder semiautomatische Technologien müssen den Nutzer darin unterstützen. Das Integrationsproblem beschäftigt Forschung und Industrie schon seit vielen Jahren z. B. im Bereich der Datenbankintegration. Neu ist jedoch die Möglichkeit komplexe semantische Informationen. wie sie in Ontologien vorhanden sind, einzubeziehen. Zur Ontologieintegration wird in diesem Kapitel ein sechsstufiger genereller Prozess basierend auf den semantischen Strukturen eingeführt. Erweiterungen beschäftigen sich mit der Effizienz oder der optimalen Nutzereinbindung in diesen Prozess. Außerdem werden zwei Anwendungen vorgestellt, in denen dieser Prozess erfolgreich umgesetzt wurde. In einem abschließenden Fazit werden neue aktuelle Trends angesprochen. Da die Ansätze prinzipiell auf jedes Schema übertragbar sind, das eine semantische Basis enthält, geht der Einsatzbereich dieser Forschung weit über reine Ontologieanwendungen hinaus.
-
Endres-Niggemeyer, B.; Jauris-Heipke, S.; Pinsky, S.M.; Ulbricht, U.: Wissen gewinnen durch Wissen : Ontologiebasierte Informationsextraktion (2006)
0.01
0.007890998 = product of:
0.015781997 = sum of:
0.015781997 = product of:
0.031563994 = sum of:
0.031563994 = weight(_text_:b in 6016) [ClassicSimilarity], result of:
0.031563994 = score(doc=6016,freq=2.0), product of:
0.16126883 = queryWeight, product of:
3.542962 = idf(docFreq=3476, maxDocs=44218)
0.045518078 = queryNorm
0.19572285 = fieldWeight in 6016, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.542962 = idf(docFreq=3476, maxDocs=44218)
0.0390625 = fieldNorm(doc=6016)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Soergel, D.: Digital libraries and knowledge organization (2009)
0.01
0.007890998 = product of:
0.015781997 = sum of:
0.015781997 = product of:
0.031563994 = sum of:
0.031563994 = weight(_text_:b in 672) [ClassicSimilarity], result of:
0.031563994 = score(doc=672,freq=2.0), product of:
0.16126883 = queryWeight, product of:
3.542962 = idf(docFreq=3476, maxDocs=44218)
0.045518078 = queryNorm
0.19572285 = fieldWeight in 672, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.542962 = idf(docFreq=3476, maxDocs=44218)
0.0390625 = fieldNorm(doc=672)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Semantic digital libraries. Eds.: S.R. Kruk, B. McDaniel
-
Hjoerland, B.: Semantics and knowledge organization (2007)
0.01
0.007890998 = product of:
0.015781997 = sum of:
0.015781997 = product of:
0.031563994 = sum of:
0.031563994 = weight(_text_:b in 1980) [ClassicSimilarity], result of:
0.031563994 = score(doc=1980,freq=2.0), product of:
0.16126883 = queryWeight, product of:
3.542962 = idf(docFreq=3476, maxDocs=44218)
0.045518078 = queryNorm
0.19572285 = fieldWeight in 1980, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.542962 = idf(docFreq=3476, maxDocs=44218)
0.0390625 = fieldNorm(doc=1980)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Breslin, J.G.: Social semantic information spaces (2009)
0.01
0.007890998 = product of:
0.015781997 = sum of:
0.015781997 = product of:
0.031563994 = sum of:
0.031563994 = weight(_text_:b in 3377) [ClassicSimilarity], result of:
0.031563994 = score(doc=3377,freq=2.0), product of:
0.16126883 = queryWeight, product of:
3.542962 = idf(docFreq=3476, maxDocs=44218)
0.045518078 = queryNorm
0.19572285 = fieldWeight in 3377, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.542962 = idf(docFreq=3476, maxDocs=44218)
0.0390625 = fieldNorm(doc=3377)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Semantic digital libraries. Eds.: S.R. Kruk, B. McDaniel
-
Dobrev, P.; Kalaydjiev, O.; Angelova, G.: From conceptual structures to semantic interoperability of content (2007)
0.01
0.0077088396 = product of:
0.015417679 = sum of:
0.015417679 = product of:
0.030835358 = sum of:
0.030835358 = weight(_text_:22 in 4607) [ClassicSimilarity], result of:
0.030835358 = score(doc=4607,freq=2.0), product of:
0.15939656 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045518078 = queryNorm
0.19345059 = fieldWeight in 4607, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=4607)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Conceptual structures: knowledge architectures for smart applications: 15th International Conference on Conceptual Structures, ICCS 2007, Sheffield, UK, July 22 - 27, 2007 ; proceedings. Eds.: U. Priss u.a
-
Klein, M.; Ding, Y.; Fensel, D.; Omelayenko, B.: Ontology management : storing, aligning and maintaining ontologies (2004)
0.01
0.0063127987 = product of:
0.012625597 = sum of:
0.012625597 = product of:
0.025251195 = sum of:
0.025251195 = weight(_text_:b in 4402) [ClassicSimilarity], result of:
0.025251195 = score(doc=4402,freq=2.0), product of:
0.16126883 = queryWeight, product of:
3.542962 = idf(docFreq=3476, maxDocs=44218)
0.045518078 = queryNorm
0.15657827 = fieldWeight in 4402, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.542962 = idf(docFreq=3476, maxDocs=44218)
0.03125 = fieldNorm(doc=4402)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Kiryakov, A.; Popov, B.; Terziev, I.; Manov, D.; Ognyanoff, D.: Semantic annotation, indexing, and retrieval (2004)
0.01
0.0063127987 = product of:
0.012625597 = sum of:
0.012625597 = product of:
0.025251195 = sum of:
0.025251195 = weight(_text_:b in 700) [ClassicSimilarity], result of:
0.025251195 = score(doc=700,freq=2.0), product of:
0.16126883 = queryWeight, product of:
3.542962 = idf(docFreq=3476, maxDocs=44218)
0.045518078 = queryNorm
0.15657827 = fieldWeight in 700, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.542962 = idf(docFreq=3476, maxDocs=44218)
0.03125 = fieldNorm(doc=700)
0.5 = coord(1/2)
0.5 = coord(1/2)
