350 search results - page 13 / 70 » An optimization framework for map-reduce queries |
PVLDB
2008
14 years 12 months ago
2008
Past work has suggested that query execution feedback can be useful in improving the quality of plans by correcting cardinality estimation errors in the query optimizer. The state...
117
click to vote
ICDE
2006
IEEE
15 years 6 months ago
2006
IEEE
The window query model is widely used in data stream management systems where the focus of a continuous query is limited to a set of the most recent tuples. In this dissertation, ...
108
Voted
DLOG
2007
15 years 2 months ago
2007
Abstract. There has been an increased interest in recent years to incorporate uncertainty in Description Logics (DLs), and a number of proposals have been put forward for modeling ...
107
click to vote
CLOUDCOM
2010
Springer
14 years 10 months ago
2010
Springer
The Semantic Web is gaining immense popularity-and with it, the Resource Description Framework (RDF) broadly used to model Semantic Web content. However, access control on RDF sto...
ICDE
2008
IEEE
15 years 6 months ago
2008
IEEE
— If we consider a query involving multiple domains, such as “find all database conferences held within six months in locations whose seasonal average temperature is 28◦ C a...