The evolution of learning systems brought improvements to the functionality of their components by offering support and mediating learning, communication and collaboration. However...
We propose a novel approach for de ning and querying a super-peer within a schema-based super-peer network organized into a two-level architecture: the low level, called the peer l...
Providing an integrated access to multiple heterogeneous sources is a challenging issue in global information systems for cooperation and interoperability. In the past, companies h...
In this paper we describe techniques for the discovery and construction of user profiles. Leveraging from the emergent data web, our system addresses the problem of sparseness of ...
The large amount of information that is spread over the Internet is an important resource for all people but also introduces some issues that must be faced. The dynamism and the un...
Sonia Bergamaschi, Giacomo Cabri, Francesco Guerra...