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» Extended Query Answering Using Integrity Rules
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DKE
2010
167views more  DKE 2010»
13 years 8 months ago
The consistency extractor system: Answer set programs for consistent query answering in databases
We describe the Consistency Extractor System (ConsEx) that computes consistent answers to Datalog queries with negation posed to relational databases that may be inconsistent with...
Mónica Caniupán Marileo, Leopoldo E....
WEBDB
1999
Springer
119views Database» more  WEBDB 1999»
14 years 25 days ago
Query Answering Using Views for Data Integration over the Web
Diego Calvanese, Giuseppe De Giacomo, Maurizio Len...
ISMIS
1999
Springer
14 years 25 days ago
A Statistical Approach to Rule Selection in Semantic Query Optimisation
Semantic Query Optimisation makes use of the semantic knowledge of a database (rules) to perform query transformation. Rules are normally learned from former queries fired by the u...
Barry G. T. Lowden, Jerome Robinson
CORR
2002
Springer
187views Education» more  CORR 2002»
13 years 8 months ago
Answer Sets for Consistent Query Answering in Inconsistent Databases
A relational database is inconsistent if it does not satisfy a given set of integrity constraints. Nevertheless, it is likely that most of the data in it is consistent with the co...
Marcelo Arenas, Leopoldo E. Bertossi, Jan Chomicki