The problem of answering queries using views is to find efficient methods of answering a
query using a set of previously defined materialized views over the database, rather than …

The problem of answering queries using views is to find efficient methods of answering a
query using a set of previously materialized views over the database, rather than accessing …

We propose a new family of description logics (DLs), called DL-Lite, specifically tailored to
capture basic ontology languages, while keeping low complexity of reasoning. Reasoning …

Data exchange is the problem of taking data structured under a source schema and creating
an instance of a target schema that reflects the source data as accurately as possible. In this …

We address the problem of minimal-change integrity maintenance in the context of integrity
constraints in relational databases. We assume that integrity-restoration actions are limited …

The formidable problem of automatic or semi-automatic composition of existing Web
services is the subject of much current attention. We address a particular subset of this …

Data exchange is the problem of taking data structured under a source schema and creating
an instance of a target schema that reflects the source data as accurately as possible. In this …

We propose a new Description Logic, called DL-Lite, specifically tailored to capture basic
ontology languages, while keeping low complexity of reasoning. Reasoning here means not …

We consider the problem of building data integration systems when the data sources are
webs of data, rather than sets of relations. Previous approaches to modeling data sources …

The data integration problem is to provide uniform access to multiple heterogeneous
information sources available online (eg, databases on the WWW). This problem has …