We develop and propose an approach modeled with multi-attribute utility theory for sensor fusion in context-aware environments. Our approach is distinguished from existing general purpose fusion techniques by a number of factors including a general underlying context model it is built upon and a set of intuitions it covers. The technique is developed for context-aware applications and we argue ...

Future ubiquitous computing has accelerated the need of context-awareness that leverages information about surrounding situation so as to adapt applications. There is considerable interest in contextawareness, and many prototypes have been proposed, which have demonstrated the potential of context-aware applications. That notwithstanding, these kinds of systems are known to be difficult to desi...

Open social learner modelling (OSLM) approaches are promoted in order to assist learners in self-directed and self-determined learning in a social context. Still, most approaches only focus on visualising learners’ performance, or providing complex tools for social navigation. Our proposal, additionally, emphasises the importance of visualising both learners’ performance and their contribution ...

Make more knowledge even in less time every day. You may not always spend your time and money to go abroad and get the experience and knowledge by yourself. Reading is a good alternative to do in getting this desirable knowledge and experience. You may gain many things from experiencing directly, but of course it will spend much money. So here, by reading location and context awareness third in...

The activity of Control Center operators is important to guarantee the effective performance of Power Systems. Operators’ actions are crucial to deal with incidents, especially severe faults, like blackouts. In this paper we present an Intelligent Tutoring approach for training Portuguese Control Centre operators in tasks like incident analysis and diagnosis, and service restoration of Power Sy...

Traditional cardiac rehabilitation is strongly based on supervised exercise therapy. However, studies show that after leaving a rehabilitative care facility it is difficult for cardiac patients to continue with exercise therapy and overall to conduct the necessary behavioral changes for a healthier life. The novel approach for cardiac rehabilitation presented in this paper is based on including...

Internet Protocol (IP) Bouncer is a novel Information Technology (IT) artifact that exposes unexpected and unwanted network communication initiated by trusted “insider” applications. It closely follows design science guidelines illustrated in the five design principles of the artifact. One of the novel aspects of the design is the key-pair approach used for assessing appropriate or inappropriat...

Context sensitivity is particularly useful, if we want to give mobile users an experience of responsive and attentive services depending on their current contexts. In this paper, we discuss some of the issues, usefulness, and a means of adding context awareness to an existing application, especially a VNC traditional application. In order to exploit the benefits of context sensitivity in the mo...