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FQAS
2006
Springer
186views Database» more  FQAS 2006»
13 years 8 months ago
Project-Join-Repair: An Approach to Consistent Query Answering Under Functional Dependencies
Consistent query answering is the term commonly used for the problem of answering queries on databases that violate certain integrity constraints. We address this problem for univ...
Jef Wijsen
IAJIT
2010
133views more  IAJIT 2010»
13 years 3 months ago
Mediation Queries Adaptation After the Removal of a Data Source
: A broad variety of data is available in distinct heterogeneous sources, stored under different formats: database formats (in relational and object-oriented models), document form...
Latifa Baba-hamed
DKE
2010
167views more  DKE 2010»
13 years 5 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....
ICDT
2009
ACM
198views Database» more  ICDT 2009»
14 years 5 months ago
Consistent query answering under primary keys: a characterization of tractable queries
This article deals with consistent query answering to conjunctive queries under primary key constraints. The repairs of an inconsistent database db are obtained by selecting a max...
Jef Wijsen
IJAR
2008
91views more  IJAR 2008»
13 years 5 months ago
Distance-based paraconsistent logics
We introduce a general framework that is based on distance semantics and investigate the main properties of the entailment relations that it induces. It is shown that such entailm...
Ofer Arieli