: Access control is an important aspect in guaranteeing data privacy within XML data sources which are accessed by users with different access rights. The goal of predicative acces...
Abstract. As personalization and device independence become prominent issues in Web development, tools to adapt existing Web Information Systems (WISs) are required. Still, current...
This paper describes the development of a question answering system for monolingual and cross-lingual tasks for the languages English and German. We developed the question answeri...
Abstract. In this paper the methodology followed to build a questionanswering system for the Portuguese language is described. The system modules are built using computational ling...
Abstract. A vision based head tracking approach is presented, combining foreground information with an elliptical head model based on the integration of gradient and skin-color inf...