Biasing behavioral activation with intent for an entertainment robot |
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Authors: | Patrick D Ulam Ronald C Arkin |
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Affiliation: | (1) College of Computing, Georgia Institute of Technology, Atlanta, GA 30332, USA |
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Abstract: | Deliberate control of an entertainment robot presents a special problem in balancing the requirement for intentional behavior
with the existing mechanisms for autonomous action selection. It is proposed that the intentional biasing of activation in
lower-level reactive behaviors is the proper mechanism for realizing such deliberative action. In addition, it is suggested
that directed intentional bias can result in goal-oriented behavior without subsuming the underlying action selection used
to generate natural behavior. This objective is realized through a structure called the intentional bus. The intentional bus
serves as the interface between deliberative and reactive control by realizing high-level goals through the modulation of
intentional signals sent to the reactive layer. A deliberative architecture that uses the intentional bus to realize planned
behavior is described. In addition, it is shown how the intentional bus framework can be expanded to support the serialization
of planned behavior by shifting from direct intentional influence for plan execution to attentional triggering of a learned
action sequence. Finally, an implementation of this architecture, developed and tested on Sony’s humanoid robot QRIO, is described. |
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Keywords: | Behavior-based robotics Deliberative control Reactive-deliberative control |
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