486 search results - page 15 / 98 » Evaluating Top-k Queries over Web-Accessible Databases |
209
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ICDE
2008
IEEE
16 years 2 months ago
2008
IEEE
Self-managing solutions have recently attracted a lot of interest from the database community. The need for self-* properties is more evident in distributed applications comprising...
145
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SIGMOD
2011
ACM
14 years 4 months ago
2011
ACM
Probabilistic database systems have successfully established themselves as a tool for managing uncertain data. However, much of the research in this area has focused on efficient...
193
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SIGMOD
2006
ACM
16 years 1 months ago
2006
ACM
Integration systems typically support only a restricted set of queries over the schema they export. The reason is that the participating information sources contribute limited con...
128
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ICDE
2010
IEEE
16 years 1 months ago
2010
IEEE
Many online or local data sources provide powerful querying mechanisms but limited ranking capabilities. For instance, PubMed allows users to submit highly expressive Boolean keywo...
209
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ICDE
2008
IEEE
16 years 2 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...