716 search results - page 22 / 144 » Optimizing Queries in Extended Relational Databases |
VLDB
1999
ACM
15 years 3 months ago
1999
ACM
The problem of nding the best answers to a query quickly, rather than nding all answers, is of increasing importance as relational databases are applied in multimedia and decision...
166
click to vote
ICDE
2008
IEEE
16 years 16 days ago
2008
IEEE
Text documents often embed data that is structured in nature, and we can expose this structured data using information extraction technology. By processing a text database with inf...
BTW
2005
Springer
15 years 4 months ago
2005
Springer
: Optimizers in modern DBMSs utilize a cost model to choose an efficient query execution plan (QEP) among all possible ones for a given query. The accuracy of the cost estimates de...
181
click to vote
ICDT
2009
ACM
15 years 12 months ago
2009
ACM
The class of unions of conjunctive queries (UCQ) has been shown to be particularly well-behaved for data exchange; its certain answers can be computed in polynomial time (in terms...
DAWAK
2010
Springer
15 years 8 days ago
2010
Springer
: Experience in Extending Query Engine for Continuous Analytics Qiming Chen, Meichun Hsu HP Laboratories HPL-2010-44 In-Database Stream Processing Combining data warehousing and s...