8763 search results - page 336 / 1753 » Querying Database Knowledge |
198
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VLDB
2002
ACM
15 years 6 months ago
2002
ACM
Our experimental analysis of several popular XPath processors reveals a striking fact: Query evaluation in each of the systems requires time exponential in the size of queries in ...
148
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OTM
2005
Springer
16 years 7 days ago
2005
Springer
The relational algebra and calculus do not take the semantics of terms into account when answering queries. As a consequence, not all tuples that should be returned in response to ...
215
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ESWS
2010
Springer
15 years 5 months ago
2010
Springer
Abstract. RDF will often be the metadata model of choice in the Semantic Sensor Web. However, RDF can only represent thematic metadata and needs to be extended if we want to model ...
273
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ICDE
2005
IEEE
16 years 8 months ago
2005
IEEE
In this demonstration, we present a database over complex documents, which, in addition to a structured text content, also has update information, annotations, and embedded object...
189
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WISE
2003
Springer
16 years 8 hour ago
2003
Springer
In this paper, we further develop a proposed layered approach for the Semantic Web. Our objective is to build a specific solution to the problem of providing data interoperability...