293 search results - page 37 / 59 » Efficiently Querying Relational Databases Using OWL and SWRL |
200
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SIGMOD
2005
ACM
15 years 12 months ago
2005
ACM
XML documents are normally stored as plain text files. Hence, the natural and most convenient way to update XML documents is to simply edit the text files. But efficient query eva...
199
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ICDE
2006
IEEE
16 years 1 months ago
2006
IEEE
We consider the problem of creating a sample view of a database table. A sample view is an indexed, materialized view that permits efficient sampling from an arbitrary range query...
184
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ICDE
2007
IEEE
16 years 1 months ago
2007
IEEE
Elevation maps are a widely used spatial data representation in geographical information systems (GIS). Paths on elevation maps can be characterized by profiles, which describe re...
102
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SDM
2010
SIAM
15 years 1 months ago
2010
SIAM
Large graph databases are commonly collected and analyzed in numerous domains. For reasons related to either space efficiency or for privacy protection (e.g., in the case of socia...
151
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VLDB
2005
ACM
15 years 12 months ago
2005
ACM
Abstract. We propose a mediator model for providing integrated and unified access to multiple taxonomy-based sources. Each source comprises a taxonomy and a database that indexes o...