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We constructed a personal, spherical, multi-projector perspective-corrected rear-projected display called <i>Spheree.</i> Spheree uses multiple calibrated pico-projectors inside a spherical display with content rendered from a user-centric viewpoint. Spheree uses optical tracking for head-coupled rendering, providing parallax-based 3D depth cues. Spheree is(More)
Cultural differences play a very important role in matching computer interfaces to the expectations of users from different national and cultural backgrounds. But to date, there has been little systematic research as to the extent of such differences, and how to produce software that automatically takes into account these differences. We are studying these(More)
This paper discusses how common sense knowledge can be used by teachers for planning Learning Activities on health care. Using common sense statements which were automatically collected, we are developing software that can be used to support the teaching and learning process, in a more contextualized form. When teachers consider the knowledge that learners(More)
This paper illustrates the use of common sense knowledge, acquired from volunteers through the web, to support teachers to plan learning activities, which fit to pedagogical issues presented in renowned Learning Theories, so that effective learning can take place. It is approached in this paper how common sense knowledge is related to four Learning(More)
Good sense can be defined as the quality which someone has to make sensible decisions about what to do in specific situations. It can also be defined as good judgment. However, in order to have good sense, people have to use common sense knowledge. This is not different to computers. Nowadays, computers are still not able to make sensible decisions and one(More)
The main goal of this work was to evaluate the use of a group of Cognitive Strategies as a help in the structure and organization of the instructional material content by the interface, targeting to increase the hyper document usability and so its quality. For an effective process of distance learning it is necessary to assist teachers during the design of(More)