One of the most rapidly evolving e-services is e-Learning, that is, the creation of advanced educational resources that are accessible on-line and, potentially, offer numerous adva...
Fotis Kokkoras, Demetrios G. Sampson, Ioannis P. V...
Spatio-temporal databases have been the focus of considerable research activity over a significant period. However, there are as of yet very few prototypes of complete systems, f...
Norman W. Paton, Alvaro A. A. Fernandes, Tony Grif...
Most operations of the relational algebra or SQL - like projection with duplicate elimination, join, ordering, group by and aggregations - are efficiently processed using a sorted...
The increase of bandwidth and streaming technology has made video on the Web the current “killer-app” of the dot-com world. However, users still face many problems. Users have...
Domain-specific control information is often essential in solving difficult planning problems efficiently. Temporal logics are a declarative and expressive representation for su...