Abstract In this paper we present a mechanism for approximately translating Boolean query constraints across heterogeneous information sources. Achieving the best translation is ch...
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...
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...
Christopher D. Hundhausen, Ravikiran Vatrapu, Josh...
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...
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 ...