483 search results - page 38 / 97 » Evaluating Top-k Selection Queries |
BNCOD
2006
13 years 9 months ago
2006
We examine the problem of producing the optimal evaluation order for queries containing joins, selections, and maps. Specifically, we look at the case where common subexpressions i...
HICSS
2003
IEEE
14 years 29 days ago
2003
IEEE
In the paper, we propose a general method for statistical performance evaluation. The method incorporates various statistical metrics and automatically selects an appropriate stat...
PPDP
2010
Springer
13 years 6 months ago
2010
Springer
Database query optimizers rely on data statistics in selecting query execution plans. Similar query optimization techniques are desirable for deductive databases and, to make this...
EUC
2007
Springer
14 years 1 months ago
2007
Springer
Cooperative caching is an important technique to support efficient data dissemination and sharing in Mobile Ad hoc Networks (MANETs). In order to ensure valid data access, the cach...
SIGMOD
2000
ACM
14 years 1 days ago
2000
ACM
Continuous queries are persistent queries that allow users to receive new results when they become available. While continuous query systems can transform a passive web into an ac...