251 search results - page 12 / 51 » Rewriting Aggregate Queries using Description Logic |
DLOG
2003
13 years 9 months ago
2003
We consider the problem of automated index selection for embedded control programs (ECPs). Such systems have the property that the transaction types, which can consist of queries ...
ENTCS
2010
13 years 5 months ago
2010
Testing and verification of asynchronously communicating objects in open environments are challenging due to non-determinism. We explore a formal approach for black-box testing by...
VLDB
1998
ACM
13 years 12 months ago
1998
ACM
Oracle Materialized Views (MVs) are designed for data warehousing and replication. For data warehousing, MVs based on inner/outer equijoins with optional aggregation, can be refre...
SPIESR
1996
13 years 9 months ago
1996
Many applications would benefit if media objects such as images could be selected and classified (or clustered) such that "conceptually similar" images are grouped toget...
DOLAP
2000
ACM
14 years 4 days ago
2000
ACM
A multidimensional database can be seen as a collection of multidimensional cubes, from which information is usually extracted by aggregation; aggregated data can be calculated ei...