98 search results - page 19 / 20 » Query rewriting and answering under constraints in data inte... |
HPDC
2010
IEEE
13 years 5 months ago
2010
IEEE
Data is routinely created, disseminated, and processed in distributed systems that span multiple administrative domains. To maintain accountability while the data is transformed b...
ICDE
2006
IEEE
14 years 5 months ago
2006
IEEE
Web-database systems are nowadays an integral part of everybody's life, with applications ranging from monitoring/trading stock portfolios, to personalized blog aggregation a...
SIGMOD
1998
ACM
13 years 8 months ago
1998
ACM
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
FQAS
1998
Springer
13 years 8 months ago
1998
Springer
Abstract. With more and more electronic information sources becoming widely available, the issue of the quality of these often-competing sources has become germane. We propose a st...
VLDB
2007
ACM
14 years 4 months ago
2007
ACM
We present STAR, a self-tuning algorithm that adaptively sets numeric precision constraints to accurately and efficiently answer continuous aggregate queries over distributed data...