8 search results - page 2 / 2 » First-Order Query Rewriting for Inconsistent Databases |
ICDE
2006
IEEE
14 years 6 months ago
2006
IEEE
The detection of duplicate tuples, corresponding to the same real-world entity, is an important task in data integration and cleaning. While many techniques exist to identify such...
VLDB
2004
ACM
14 years 5 months ago
2004
ACM
Abstract. In dynamic environments like the Web, data sources may change not only their data but also their schemas, their semantics, and their query capabilities.When a mapping is ...
ICDE
2007
IEEE
14 years 6 months ago
2007
IEEE
Logical constraints, (e.g., 'phone numbers in toronto can have prefixes 416, 647, 905 only'), are ubiquitous in relational databases. Traditional integrity constraints, ...