98 search results - page 9 / 20 » Query rewriting and answering under constraints in data inte... |
PVLDB
2010
13 years 7 months ago
2010
Violations of functional dependencies (FDs) are common in practice, often arising in the context of data integration or Web data extraction. Resolving these violations is known to...
EDBT
2008
ACM
14 years 8 months ago
2008
ACM
In the paper we discuss the problem of data integration in a P2P environment. In such setting each peer stores schema of its local data, mappings between the schema and schemas of...
KRDB
1996
13 years 10 months ago
1996
Metaprogramming adds new expressive power to logic programming which can be advantageous to transfer to the field of deductive databases. We propose metaprogramming as a way to mo...
VLDB
2011
ACM
13 years 3 months ago
2011
ACM
Schema mappings are high-level specifications that describe the relationship between two database schemas. They are an important tool in several areas of database research, notab...
ICDE
2002
IEEE
14 years 10 months ago
2002
IEEE
The goal of a data integration system is to provide a uniform interface to a multitude of data sources. Given a user query formulated in this interface, the system translates it i...