Won-hyong LEE, Myung-jin CHUNG
Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
Abstract-This study is to introduce concepts of energy and entropy to describe a robot′s emotion decision.
It chooses the dimensional approach based on factors of pleasure and arousal for the merit of the interpolation between emotions. Especially, Circumplex mo del which has also two axes: pleasure and arousal is used. Besides, the model indicates ho w emotions are distributed in the two-dimensional plane. Then by the definition of psychodynamicsthe energy states (mental energy and physical energy) are matc hed to pleasure and arousal respectively that are the basis of Circumplex model. The mental energy is updated by the result o f Prospect theory which measures the value of gain and loss as pleasure factor. And the physical energy is updated by the result of hedonic scaling which measur es levels of arousal from pleasure computed by Prospect theory, and the result o f intensity of stimuli. Then the energy states are fed by entropy. The feedback loop by entropy satisfies the 2nd law of thermodynamics. The energy states gener ated by stimuli and fed by entropy take a position in the plane of Circumplex mo del. Then distances between the current position and other emotions are computed to get a level of each emotion, proportional to the inverse of the distance.
Key words-robot′s emotion； emotion generation； emoti on decision; energy and entropy
Manuscript Number: 1674-8042(2010)04-0368-04
dio: 10.3969/j.issn.1674-8042.2010.04.15
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