Retrieving relevant information in Data and Knowledge Bases containing a large number of di erent types of information is a non trivial problem. That is the reason why, in areas l...
The Gamma model is a minimal programming language based on local multiset rewriting (with an elegant chemical reaction metaphor); Hankin et al derived a calculus of Gamma programs...
Interactions between agents in an open system such as the Internet require a significant degree of flexibility. A crucial aspect of the development of such methods is the notion o...
Concurrency is inherent in today’s software. Unexpected interactions between concurrently executing threads often cause subtle bugs in concurrent programs. Such bugs are hard to...
Traditionally, infinite databases were studied as a data model for queries that may contain function symbols (since functions may be expressed as infinite relations). Recently, th...