78 search results - page 6 / 16 » Progressive Query Optimization for Federated Queries |
EDBT
2006
ACM
15 years 9 months ago
2006
ACM
Skyline queries help users make intelligent decisions over complex data, where different and often conflicting criteria are considered. Current skyline computation methods are rest...
SIGMOD
2004
ACM
15 years 9 months ago
2004
ACM
Ranking is an important property that needs to be fully supported by current relational query engines. Recently, several rank-join query operators have been proposed based on rank...
87
Voted
DLOG
2007
14 years 12 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 ...
ICWN
2008
14 years 11 months ago
2008
: Problem statement: For a sensor network comprising autonomous and self-organizing data sources, efficient similarity-based search for semantic-rich resources (such as video data)...
83
Voted
SIGMOD
2003
ACM
15 years 9 months ago
2003
ACM
A query optimizer compares alternative plans in its search space to find the best plan for a given query. Depending on the search space and the enumeration algorithm, optimizers v...