427 search results - page 3 / 86 » Conjunctive Query Answering in EL using a Database System |
VLDB
2003
ACM
14 years 5 months ago
2003
ACM
In data applications such as information integration, there can be limited access patterns to relations, i.e., binding patterns require values to be specified for certain attribut...
VLDB
2006
ACM
14 years 5 months ago
2006
ACM
In this paper we study the following problem. Given a database and a set of queries, we want to find a set of views that can compute the answers to the queries, such that the amoun...
SIGMOD
2004
ACM
14 years 5 months ago
2004
ACM
We define a framework for static optimization of sliding window conjunctive queries over infinite streams. When computational resources are sufficient, we propose that the goal of...
DBISP2P
2005
Springer
13 years 7 months ago
2005
Springer
Abstract. We study the problem of evaluating RDF queries over structured overlay networks. We consider the publish/subscribe scenario where nodes subscribe with long-standing queri...
VLDB
2001
ACM
14 years 5 months ago
2001
ACM
The problem of answering queries using views is to find efficient methods of answering a query using a set of previously materialized views over the database, rather than accessing...