One of the most powerful features of SQL is the use of nested queries. Most research work on the optimization of nested queries focuses on aggregate subqueries. However, the solut...
The increasing popularity of music recommendation systems and the recent growth of online music communities further emphasizes the need for effective playlist management tools able...
This paper describes the Array Manipulation Language (AML), an algebra for multidimensional array data. AML is generic, in the sense that it can be customized to support a wide va...
In this paper, we present a new framework for the definition of various data structures (including trees and arrays) together with a generic language of filters enabling a rule-ba...
Process algebras are a set of mathematically rigourous languages with well defined semantics that permit modelling behaviour of concurrent and communicating systems. Verification o...