297 search results - page 11 / 60 » On the Decidability of Consistent Query Answering |
ICDT
2001
ACM
14 years 26 days ago
2001
ACM
Abstract. The problem of answering queries using views has been studied extensively due to its relevance in a wide variety of data-management applications. In these applications, w...
PODS
2009
ACM
14 years 9 months ago
2009
ACM
The paper investigates the question of whether a partially closed database has complete information to answer a query. In practice an enterprise often maintains master data Dm, a ...
SEMWEB
2004
Springer
14 years 1 months ago
2004
Springer
The Semantic Web is bound to be untrustworthy and inconsistent. In this paper, we present an initial approach for obtaining useful information in such an environment. In particular...
GIS
2008
ACM
14 years 9 months ago
2008
ACM
In order to deal with inconsistent databases, a repair semantics defines a set of admissible database instances that restore consistency, while staying close to the original insta...
CL
2000
Springer
14 years 23 days ago
2000
Springer
Abstract. We consider the problem of specifying and computing consistent answers to queries against databases that do not satisfy given integrity constraints. This is done by simul...