Delegation Based Multimedia Mobile Guide

We introduce a new interaction model based on delegation where the visitor can signal her preferences during the visit by means of a graphical widget (called the like-o-meter). The system takes into account such a feedback and selects/organizes the content according to users’ liking or disliking. The user model incrementally updates the information collected from users’ behaviour on the interface, and shows it to the visitor through the same widget which thus act as an output as well as an input device.