1588 search results - page 4 / 318 » Consistent query answering in databases |
AMW
2010
13 years 8 months ago
2010
Abstract. Consistent query answering (CQA) is about formally characterizing and computing semantically correct answers to queries posed to a database that may fail to satisfy certa...
DAGSTUHL
2003
13 years 8 months ago
2003
In this chapter, we summarize the research on querying inconsistent databases we have been conducting over the last five years. The formal framework we have used is based on two c...
CASCON
2004
13 years 8 months ago
2004
For several reasons a database may not satisfy certain integrity constraints (ICs), for example, when it is the result of integrating several independent data sources. However, mo...
GIS
2008
ACM
14 years 8 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...
PODS
2004
ACM
14 years 7 months ago
2004
ACM
Data exchange is the problem of taking data structured under a source schema and creating an instance of a target schema. Given a source instance, there may be many solutions ? ta...