2228 search results - page 322 / 446 » A System for Semantic Query Optimization |
KR
2010
Springer
14 years 1 months ago
2010
Springer
Horn fragments of Description Logics (DLs) have gained popularity because they provide a beneficial trade-off between expressive power and computational complexity and, more spec...
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
We study the problem of computing query results with confidence values in ULDBs: relational databases with uncertainty and lineage. ULDBs, which subsume probabilistic databases, o...
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
Digital videos are increasingly adopted in various multimedia applications where they are usually broadcasted or transmitted as video streams. Continuously monitoring copies on the...
SIGMOD
2005
ACM
14 years 1 months ago
2005
ACM
Appropriately selected materialized views (also called indexed views) can speed up query execution by orders of magnitude. Most database systems limit support for materialized vie...
EDBTW
2006
Springer
13 years 12 months ago
2006
Springer
Abstract. Recent research efforts in the fields of data stream processing and data stream management systems (DSMSs) show the increasing importance of processing data streams, e. g...