Graphical user interfaces rely heavily on the tool metaphor. In most drawing systems, for example, functions are organized as they might be on a workbench; buttons associated with...
We present a set of graphical user interface elements, called widgets, for 2-dimensional visual codes. The proposed widgets are suitable for printing on paper as well as showing o...
Distributed interactive systems often rely on platform information, used for example when migrating a user interface to a small-screen device, or when opportunistically recruiting...
Conversational Agents have been shown to be effective tutors in a wide range of educational domains. However, these agents are often ignored and abused in collaborative learning s...
The question addressed in this paper is which types of spatial reference human users employ in the interaction with a robot and how a cognitively adequat model of these strategies...