Mediators – used in federated information systems – provide a homogeneous read-only access to a set of autonomous information sources. To achieve semantic integration of the h...
Geospatial information integration is not a trivial task. An integrated view must be able to describe various heterogeneous data sources and its interrelation to obtain shared con...
Miguel Torres, Serguei Levachkine, Rolando Quinter...
We present an optimization method and algorithm designed for three objectives: physical data independence, semantic optimization, and generalized tableau minimization. The method ...
: Molecular biology data are placed in different databases, repositories and flat files, usually distributed over the web. Distinct data models with schemas that are often changing...
Abstract--In the context of a project aimed at the development of a cooperative and distributed Authoring System to facilitate the production, sharing, and integration of new and e...
Giuseppe Rizzo, Biagio Meirone, Pierluigi Di Nunzi...