27 search results - page 1 / 6 » Approximate query mapping: Accounting for translation closen... |
VLDB
2001
ACM
14 years 4 months ago
2001
ACM
Abstract In this paper we present a mechanism for approximately translating Boolean query constraints across heterogeneous information sources. Achieving the best translation is ch...
PODS
2008
ACM
14 years 4 months ago
2008
ACM
In the study of data exchange one usually assumes an openworld semantics, making it possible to extend instances of target schemas. An alternative closed-world semantics only move...
VL
2003
IEEE
13 years 9 months ago
2003
IEEE
One of the reputed advantages of end-user programming languages is that they support a given problem doh a set of programming abstractions that are “just right” for the end-us...
ER
2006
Springer
13 years 8 months ago
2006
Springer
One of the main drawbacks of the Semantic Web is the lack of semantically rich data, since most of the information is still stored in relational databases. In this paper, we presen...
ICDT
2010
ACM
13 years 8 months ago
2010
ACM
Relational data exchange deals with translating a relational database instance over some source schema into a relational database instance over some target schema, according to a ...