765 search results - page 11 / 153 » Query Processing over Incomplete Autonomous Databases |
166
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ICDE
2008
IEEE
15 years 11 months ago
2008
IEEE
Abstract-- Current twig join algorithms incur high memory costs on queries that involve child-axis nodes. In this paper we provide an analytical explanation for this phenomenon. In...
125
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EDBT
2009
ACM
15 years 1 months ago
2009
ACM
Range queries for querying the current and future positions of the moving objects have received growing interests in the research community. Existing methods, however, assume that...
SIGMOD
2004
ACM
15 years 10 months ago
2004
ACM
PIPES is a flexible and extensible infrastructure providing fundamental building blocks to implement a data stream management system (DSMS). It is seamlessly integrated into the J...
DBISP2P
2005
Springer
14 years 12 months ago
2005
Springer
Abstract. We study the problem of evaluating RDF queries over structured overlay networks. We consider the publish/subscribe scenario where nodes subscribe with long-standing queri...
SIGMOD
2010
ACM
14 years 10 months ago
2010
ACM
Many websites provide restrictive form-like interfaces which allow users to execute search queries on the underlying hidden databases. In this paper, we consider the problem of es...