220 Geographical Information Systems: Trends and Technologies
When dealing with offl ine services in mobile environments, it is very
important to fi lter, in advance, the information of interest by the users in
order to minimize the storage of the required information and to maximize
the users’ satisfaction with the provided information. To perform such
personalization it is necessary to be aware of the context in which the user
is placed. In our particular case, the context may be defi ned by the user
preferences, the user-traveling confi guration (how the user is traveling,
whether the user travels with friends or family, the time of the route, the
place where the route will be done, etc.). By using semantic information it
is possible to defi ...