Practical reasoning (PR), which is concerned with the generic question of what to do, is generally seen as a two steps process: (1) deliberation, in which an agent decides what state of affairs it wants to reach -- that is, its desires; and (2) means-...

A rational agent adopts (or changes) its goals when new information (beliefs) becomes available or its desires (e.g., tasks it is supposed to carry out) change. In conventional approaches to goal generation in which a goal is considered as a "particular"...

We present ERIC, an affective embodied agent for realtime commentary in many domains. The underlying architecture is rule-based, generic, and lightweight - based on Java/Jess modules. Apart from reasoning about dynamically changing events, the system ...

Recent research has shown that virtual agents expressing empathic emotions toward users have the potentiality to enhance human-machine interaction. To identify under which circumstances a virtual agent should express empathic emotions, we have analyzed ...