142 search results - page 10 / 29 » On Conjunctive Query Answering in EL |
FQAS
2009
Springer
14 years 4 months ago
2009
Springer
We consider the problem of finding and ranking paths in semistructured data without necessarily knowing its full structure. The query language we adopt comprises conjunctions of r...
VLDB
2006
ACM
14 years 10 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...
PODS
2006
ACM
14 years 10 months ago
2006
ACM
Privacy-preserving query-answering systems answer queries while provably guaranteeing that sensitive information is kept secret. One very attractive notion of privacy is perfect p...
VLDB
2001
ACM
14 years 10 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...
SEMWEB
2009
Springer
14 years 4 months ago
2009
Springer
Abstract. Query answering for the QL profile of OWL 2 and a substantial fragment of the EL profile can be implemented via query rewriting. In our previous work, we presented RQR...