143 search results - page 15 / 29 » Query Order and the Polynomial Hierarchy |
WEBDB
2000
Springer
15 years 29 days ago
2000
Springer
Rewriting queries using views is a powerful technique that has applications in data integration, data warehousing and query optimization. Query rewriting in relational databases i...
IANDC
2011
14 years 4 months ago
2011
Query answering algorithms on Xml streams check answer candidates on the fly in order to avoid the unnecessary buffering whenever possible. The delay and concurrency of a query ...
DIGITALCITIES
2003
Springer
15 years 2 months ago
2003
Springer
In order to utilize geographic web information for digital city applications, we have been developing a geographic web search system, KyotoSEARCH. When users retrieve geographic in...
VLDB
2001
ACM
15 years 1 months ago
2001
ACM
This paper investigates the problem of incremental joins of multiple ranked data sets when the join condition is a list of arbitrary user-defined predicates on the input tuples. ...
JSW
2008
14 years 9 months ago
2008
The Data Grid, like all other collaboration models, has strict rules for contributors to follow and many criteria to abide with. Namespace is one of the rules that govern the contr...