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On the Data Complexity of Consistent Query Answering
(Springer, 2015)
The framework of database repairs is a principled approach to managing inconsistency in databases. In particular, the consistent answers of a query on an inconsistent database provide sound semantics and the guarantee that ...
SPECIFYING ACTIVE RULES FOR DATABASE MAINTENANCE
(SPRINGER, 2000)
In this article we extend previous work on the development of logical foundations for the specification of the dynamics of databases. In particular, we deal with two problems. Firstly, the derivation of active rules that ...
Consistency and trust in peer data exchange systems
(2016)
We propose and investigate a semantics for peer data exchange systems where different peers are related by data exchange constraints and trust relationships. These two elements plus the data at the peers' sites and their ...
Query evaluation in almost consistent databases using residues
(IEEE, 1998)
The authors consider the problem of logical characterization of the notion of correct answers in a relational database that may violate given integrity constraints. This notion is captured in terms of the possible repaired ...
On the data complexity of consistent query answering over graph databases
(Elsevier, 2017)
Applications of graph databases are prone to inconsistency due to interoperability issues. This raises the need for studying query answering over inconsistent graph databases in a simple but general framework. We follow ...
SPECIFYING AND QUERYING DATABASE REPAIRS USING LOGIC PROGRAMS WITH EXCEPTIONS
(PHYSICA-VERLAG HEIDELBERG, 2001)
Databases may be inconsistent with respect to a given set of integrity constraints. Nevertheless, most of the data may be consistent. In this paper we show how to specify consistent data and how to query a relational ...
SPECIFYING AND QUERYING DATABASE REPAIRS USING LOGIC PROGRAMS WITH EXCEPTIONSFLEXIBLE QUERY ANSWERING SYSTEMS. RECENT ADVANCES
(PHYSICA-VERLAG HEIDELBERG, 2016)
Uso del método de compresión Re-Pair para disminuir el espacio requerido por los índices utilizados en espacios métricos basados en permutaciones
(Universidad de Talca (Chile). Escuela de Ingeniería Civil en Computación., 2016)