332 search results - page 57 / 67 » Query Evaluation and Optimization in the Semantic Web |
162
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KRDB
1998
15 years 7 months ago
1998
We present a semantic caching approach for optimizing the performance of information mediators. A critical problem with information mediators, particularly those gathering and int...
170
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DLOG
2006
15 years 7 months ago
2006
On the Semantic Web, there has been increasing demand for a ruleslike expressivity that goes beyond OWL-DL. Efforts of combining rules languages and description logics usually pro...
162
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DASFAA
2007
IEEE
15 years 9 months ago
2007
IEEE
Abstract. OWL is a recommended language for publishing and sharing ontologies on the Semantic Web. To manage the ontologies, several OWL data management systems have been proposed....
182
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ICMCS
2010
IEEE
15 years 6 months ago
2010
IEEE
This paper compares the efficacy and efficiency of different clustering approaches for selecting a set of exemplar images, to present in the context of a semantic concept. We eval...
174
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MMS
2008
15 years 5 months ago
2008
We address the challenge of semantic gap reduction for image retrieval through an improved SVM-based active relevance feedback framework, together with a hybrid visual and concept...