In this paper we describe the first stand-alone Augmented Reality (AR) system with self-tracking running on an unmodified personal digital assistant (PDA) with a commercial camera...
A common way of storing spatio-temporal information about mobile devices is in the form of a 3D (2D geography + time) trajectory. We argue that when cellular phones and Personal D...
With the growing popularity of personal digital assistants and smart phones, people have become enthusiastic to watch videos through these mobile devices. However, a crucial chall...
Mathematical notations around the world are diverse. Not as much as requiring computing machines’ makers to adapt to each culture, but as much as to disorient a person landing on...
Privacy-Enhancing Identity Management (PIM) enables users to control which personal information they provide to their communication partner(s) by partitioning their personal infor...
Katrin Borcea-Pfitzmann, Elke Franz, Andreas Pfitz...