429 search results - page 26 / 86 » A SAT approach to query optimization in mediator systems |
PODS
2001
ACM
14 years 8 months ago
2001
ACM
Database systems frequently have to execute a set of related queries, which share several common subexpressions. Multi-query optimization exploits this, by finding evaluation plan...
CSL
2004
Springer
13 years 8 months ago
2004
Springer
Recent approaches to large vocabulary decoding with finite state graphs have focused on the use of state minimization algorithms to produce relatively compact graphs. This paper e...
ADBIS
2004
Springer
14 years 2 months ago
2004
Springer
Abstract. Query reformulation techniques based on semantic knowledge have been used in two ways in database management systems, namely for query optimization and for data integrati...
ICDE
1998
IEEE
14 years 10 months ago
1998
IEEE
We have developed a MultiMedia Visual Information Seeking (MMVIS) Environment that is the first system to support an integrated approach to the direct manipulation specification o...
SIGMOD
2003
ACM
14 years 8 months ago
2003
ACM
A query optimizer compares alternative plans in its search space to find the best plan for a given query. Depending on the search space and the enumeration algorithm, optimizers v...