The use of educational datamining techniques to elicit patterns in student behavior and learning outcomes can be a useful for the analysis of the effectiveness of teaching strategies and the coordination of study programs. However, results from those techniques are, often, large sets of symbolic...

In this work, the authors present a video navigation interface optimized for smartphones. The design is inspired by the 'Click Wheel' interface originally used by Apple iPod TM devices: it utilizes a dedicated touch-enabled circular area that can be used with wipe gestures for content navigation...