298 search results - page 43 / 60 » Query Rewriting in DL-Lite_^(HN)_horn |
SIGMOD
1997
ACM
15 years 3 months ago
1997
ACM
Data warehouses store materialized views over base data from external sources. Clients typically perform complex read-only queries on the views. The views are refreshed periodical...
SIGMOD
2003
ACM
15 years 11 months ago
2003
ACM
To truly meet the requirements of multimedia database (MMDB) management, an integrated framework for modeling, managing and retrieving various kinds of media data in a uniform way...
OTM
2005
Springer
15 years 4 months ago
2005
Springer
Abstract. Caching can highly improve performance of query processing in distributed databases. In this paper we show how this technique can be used in grid architecture where data ...
DOLAP
2004
ACM
15 years 4 months ago
2004
ACM
A peer-to-peer (P2P) data management system consists essentially of a network of peer systems, each maintaining full autonomy over its own data resources. Data exchange between pe...
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DBPL
2001
Springer
15 years 3 months ago
2001
Springer
Abstract. We are interested in the theoretical foundations of the optimization of conjunctive regular path queries (CRPQs). The basic problem here is deciding query containment bot...