We invite researchers and students from outside CERN to attend this event. It is not necessary to inform us if you plan to come, but if you expect a large audience from your institution, we would be happy to know in advance so that we can pre-inform the CERN reception. Map of Building 503 and the surrounding area at the CERN Meyrin Site . As the scope of our information systems grows, they have to cope with increasing heterogeneity. When information comes from remote, autonomous sources, the control over consistency that is required to achieve effective production of information in traditional systems is lost.
Heterogeneity exists at many levels.
The objective of research in mediation is to improve the integration of heterogeneous data and to provide aid with the search for relevant data, combine data derived from multiple heterogeneous sources, and process the results to create real information for the user. This talk will provide an overview of the current state of the art, and point out where more research is required. Gio Wiederhold is Professor of Computer Science, Electrical Engineering, and Medicine at Stanford University and is a world-renowned expert on information intergration and among the founders of this field. He has authored over 300 scientific publications and is currently on sabbatical at EPFL, Lausanne. There are two basic approaches to the information integration problem, called procedural and declarative.