Search engines are among the most important applications or services on the web. Most existing successful search engines use global ranking algorithms to generate the ranking of do...
Multicasting, as an operational paradigm, has not been widely adopted until now, in spite of the advantages of its lower resource utilization and bandwidth conservation. This is d...
In this paper we propose an access control model for the Resource Description Framework (RDF). We argue that existing access control models, like the ones developed for securing e...
This paper describes our experience in developing a software system for use in the environmental modeling community. The primary user of this software is intended to be a scientis...
Advanced object-oriented applications require the management of schema versions, in order to cope with changes in the structure of the stored data. Two types of versioning have be...
Fabio Grandi, Federica Mandreoli, Maria Rita Scala...