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LPAR
2000
Springer
13 years 8 months ago
How to Decide Query Containment Under Constraints Using a Description Logic
Ian Horrocks, Ulrike Sattler, Sergio Tessaris, Ste...
TOCL
2008
86views more  TOCL 2008»
13 years 4 months ago
Conjunctive query containment and answering under description logic constraints
Diego Calvanese, Giuseppe De Giacomo, Maurizio Len...
JAPLL
2010
179views more  JAPLL 2010»
13 years 3 months ago
Tractable query answering and rewriting under description logic constraints
Answering queries over an incomplete database w.r.t. a set of constraints is an important computational task with applications in fields as diverse as information integration and ...
Héctor Pérez-Urbina, Boris Motik, Ia...
PODS
2003
ACM
142views Database» more  PODS 2003»
14 years 4 months ago
Query containment and rewriting using views for regular path queries under constraints
In this paper we consider general path constraints for semistructured databases. Our general constraints do not suffer from the limitations of the path constraints previously stud...
Gösta Grahne, Alex Thomo
DLOG
2008
13 years 7 months ago
Taming the Infinite Chase: Query Answering under Expressive Relational Constraints
Answering queries posed over knowledge bases is a central problem in knowledge representation and database theory. In databases, query containment is one of the important query op...
Andrea Calì, Georg Gottlob, Michael Kifer