In an ambient intelligence world, devices work in order to support people carrying out their everyday life activities in a natural way. Therefore, it is necessary to know the entities in the environment and to consider new ...

The Ubiquitous Computing (UC) idea envisioned by Weiser in 1991 [1] has recently evolved to a more general paradigm known as Ambient Intelligence (AmI) that represents a new generation of user-centred computing environments ...