289 search results - page 6 / 58 » Control of an Extensible Query Optimizer: A Planning-Based A... |
ML
2008
ACM
13 years 7 months ago
2008
ACM
Abstract We present a new margin-based approach to first-order rule learning. The approach addresses many of the prominent challenges in first-order rule learning, such as the comp...
SIGMOD
2001
ACM
14 years 7 months ago
2001
ACM
Time-referenced data are pervasive in most real-world databases. Recent advances in temporal query languages show that such database applications may benefit substantially from bu...
SIGMOD
2008
ACM
14 years 7 months ago
2008
ACM
The emergence of database languages with side effects, notably for XML, raises significant challenges for database compilers and optimizers. In this paper, we extend an algebra fo...
DASFAA
2007
IEEE
14 years 2 months ago
2007
IEEE
Today, result sets of skyline queries are unmanageable due to their exponential growth with the number of query predicates. In this paper we discuss the incremental re-computation ...
ESWS
2008
Springer
13 years 9 months ago
2008
Springer
Instant Messaging is in addition to Web and Email the most popular service on the Internet. With xOperator we demonstrate the implementation of a strategy which deeply integrates I...