Adaptive Educational Hypermedia (AEH) and IMS Learning Design (IMS LD) are different disciplines, and at present, there is little shared knowledge between them. However, their goa...
Although Instant Messaging (IM) services are now relatively long-standing and very popular as an instant way of communication over the Internet, they have received little attention...
We propose a new random model of web graphs in which the degree of a vertex depends on its age. We characterize the degree sequence of this model and study its behaviour near the c...