This is an overview of the end-to-end data cleaning process. Data quality is one of the most
important problems in data management, since dirty data often leads to inaccurate data …

We consider systems for data sharing among heterogeneous peers related by a network of
schema map**s. Each peer has a locally controlled and edited database instance, but …

The problem of exchanging data between different databases with different schemas is an
area of immense importance. Consequently data exchange has been one of the most active …

The initial and basic role of the chase procedure was to test logical implication between sets
of dependencies in order to determine equivalence of database instances known to satisfy a …

A lot of research activity has recently taken place around the chase procedure, due to its
usefulness in data integration, data exchange, query optimization, peer data exchange and …

Recent work [Ives et al. 2005] proposed a new class of systems for supporting data sharing
among scientific and other collaborations: this new collaborative data sharing system …

We show that all–instances termination of chase is undecidable. More precisely, there is no
algorithm deciding, for a given set \calT consisting of Tuple Generating Dependencies (aka …

Data exchange, also known as data translation, has been extensively investigated in recent
years. One main direction of research has focused on the semantics and the complexity of …

The chase procedure is considered as one of the most fundamental algorithmic tools in
database theory. It has been successfully applied to different database problems such as …

The framework of database repairs is a principled approach to managing inconsistency in
databases. In particular, the consistent answers of a query on an inconsistent database …