2228 search results - page 20 / 446 » A System for Semantic Query Optimization |
ICDE
2002
IEEE
14 years 9 months ago
2002
IEEE
We study the problem of query optimization in federated relational database systems. The nature of federated databases explicitly decouples many aspects of the optimization proces...
FQAS
2004
Springer
14 years 1 months ago
2004
Springer
In: Proceedings of the Sixth International Conference On Flexible Query Answering Systems (FQAS-04), Springer-Verlag LNAI 3055, pp. 203-216. c 2004 by Springer-Verlag. To model qu...
PAKDD
2005
ACM
14 years 1 months ago
2005
ACM
Traditional multiple query optimization methods focus on identifying common subexpressions in sets of relational queries and on constructing their global execution plans. In this p...
PVLDB
2008
13 years 7 months ago
2008
Unlike traditional database queries, keyword queries do not adhere to predefined syntax and are often dirty with irrelevant words from natural languages. This makes accurate and e...
SIGECOM
2010
ACM
14 years 22 days ago
2010
ACM
Product recommendation and decision support systems must generally develop a model of user preferences by querying or otherwise interacting with a user. Recent approaches to elici...