350 search results - page 35 / 70 » An optimization framework for map-reduce queries |
92
Voted
SIGMOD
2001
ACM
16 years 19 days ago
2001
ACM
Estimating the result size of complex queries that involve selection on multiple attributes and the join of several relations is a difficult but fundamental task in database query...
184
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SIGMOD
2008
ACM
16 years 19 days ago
2008
ACM
Mobile devices equipped with positioning capabilities (e.g., GPS) can ask location-dependent queries to Location Based Services (LBS). To protect privacy, the user location must n...
117
Voted
SIGMOD
2011
ACM
14 years 3 months ago
2011
ACM
Scheduling data processing workflows (dataflows) on the cloud is a very complex and challenging task. It is essentially an optimization problem, very similar to query optimizati...
132
Voted
CIKM
2011
Springer
14 years 13 days ago
2011
Springer
A continuous top-k query retrieves the k most preferred objects in a data stream according to a given preference function. These queries are important for a broad spectrum of appl...
WWW
2007
ACM
16 years 1 months ago
2007
ACM
Most RDF query languages allow for graph structure search through a conjunction of triples which is typically processed using join operations. A key factor in optimizing joins is ...