Adding animated presentation agents to the interface

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Abstract
A growing,number,of research projects both in academia and industries have started to investigate the use of animated agents in the interface. Such agents, either based on real video, cartoon-style drawings or even model-based 3D graphics, are likely to become integral parts of future user interfaces. To be useful, however, interface agents have to be intelligent in the sense that they exhibit a reasonable behavior. In this paper, we present a system that uses a lifelike character, the so-called PPP Persona, to present multimedia material to the user. This material has been either automatically generated or fetched from the web and modified if necessary. The underlying approach is based on our previous work on multimedia,presentation planning. This core approach is complemented by additional concepts, namely the temporal coordination of presentation acts and the consideration of the human-factors dimension,of the added visual metaphor. Keywords Animated user interface agents, presentation techniques for web applications, automated multimedia authoring

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