1168 search results - page 53 / 234 » Optimization strategies for complex queries |
VLDB
1990
ACM
14 years 2 months ago
1990
ACM
Even though the large body of knowledge of relational query optimization techniques can be utilized as a starting point for object-oriented query optimization the full exploitatio...
SIGMOD
2004
ACM
14 years 11 months ago
2004
ACM
Virtually every commercial query optimizer chooses the best plan for a query using a cost model that relies heavily on accurate cardinality estimation. Cardinality estimation erro...
PVLDB
2010
13 years 9 months ago
2010
The need to improve a suboptimal execution plan picked by the query optimizer for a repeatedly run SQL query arises routinely. Complex expressions, skewed or correlated data, and ...
SIGMOD
2003
ACM
14 years 11 months ago
2003
ACM
Modern database systems provide not only powerful data models but also complex query languages supporting powerful features such as the ability to create new database objects and ...
LWA
2007
14 years 5 days ago
2007
Typical conversational recommender systems support interactive strategies that are hard-coded in advance and followed rigidly during a recommendation session. In fact, Reinforceme...