101 search results - page 6 / 21 » Consistent query answering under inclusion dependencies |
LPNMR
2009
Springer
14 years 4 months ago
2009
Springer
Abstract. We study the complexity of consistency checking and query answering on incomplete databases for languages ranging from non-recursive Datalog to disjunctive Datalog with n...
DLOG
2011
13 years 1 months ago
2011
Query answering in Ontology Based Data Access (OBDA) exploits the knowledge of an ontology’s TBox to deal with incompleteness of the ABox (or data source). Current query-answerin...
EDBTW
2004
Springer
14 years 3 months ago
2004
Springer
The problem of answering queries posed to a peer who is a member of a peer-to-peerdataexchangesystemisstudied.Theanswershavetobeconsistentwrt to both the local semantic constraints...
ICAIL
1997
ACM
14 years 2 months ago
1997
ACM
The capacity for self-explanation can makecomputer-drafted documents more credible, assist in the retrieval and adaptation of archival documents, and permit comparison of document...
PODS
1998
ACM
14 years 2 months ago
1998
ACM
We study the complexity of the problem of answering queries using materialized views. This problem has attracted a lot of attention recently because of its relevance in data integ...