Emergent Model of Emotion Mei Yii Lim, Ruth Aylett, Christian Martyn Jones Heriot-Watt University
Existing Emotion Models Inspired by appraisal theory Focus on agent’s cognitive behavior Most of these models simulate a limited picture of the links between lower-level and higher-level functionalities Trigger expressions according to one emotion
High-cognitive level models OCC taxonomy – key reference in the domain of ECA OZ Project Affective Reasoner VICTEC, etc Appraisal Model by Scherer
Low-level models Cathexis model by Velásquez Cañamero etc.
An Emergent Emotion Model ‘PSI’ model of emotion, by psychologist Dietrich Dörner Framework for agents Emotional modulation, perception, action-selection, planning and memory access Integrated level-bridging model of emotion
Continued … Emotions emerge from modulation of information processing and action selection Become apparent when agents reflect their interaction with the environment
Modulators Each modulators lie within a range of intensity Resolution level Selection threshold Activation Rate of updating
Built-in motivators Together with the modulators produce complex behavior Level of competence Knowledge Urgency of motives Importance of motive Uncertainty level
Internal Structure of ‘PSI’
Possible advantages Adaptive agent Reflect mixture of emotions For example, gradual change of emotional expression More colour and variation to the type of emotions that can be experienced
Sample Implementation The Island Game
Questions???