708 search results - page 98 / 142 » A Genetic Algorithm for Database Query Optimization |
SIGMOD
2002
ACM
14 years 9 months ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...
VLDB
2007
ACM
14 years 3 months ago
2007
ACM
Real-world datasets exhibit a complex dependency structure among the data attributes. Learning this structure is a key task in automatic statistics configuration for query optimi...
BMCBI
2002
13 years 8 months ago
2002
Background: Biologists are often interested in performing a simple database search to identify proteins or genes that contain a well-defined sequence pattern. Many databases do no...
PVLDB
2010
13 years 7 months ago
2010
To enable smart environments and self-tuning data centers, we are developing the Aspen system for integrating physical sensor data, as well as stream data coming from machine logi...
IPSN
2009
Springer
14 years 3 months ago
2009
Springer
As the diversity of sensornet use cases increases, the combinations of environments and applications that will coexist will make custom engineering increasingly impractical. We in...