Research of emotion modeling for intelligent virtual agent

To make the intelligent virtual agent become more natural and believable, giving her emotion ability is very important. According to Basic Emotion Theory and Cognitive Evaluation Theory in Psychology, it proposes an emotion model based on Fuzzy Rules. Firstly, emotion factor is generated according to the emotion elicited rules based on Fuzzy IF-THEN rules. Then a nonlinear function restricted by personality, emotion factor and emotion state at the previous moment was used to compute emotion strength. The simulation result shows, this model can simulate the fuzzy and nonlinear characteristic of human emotion to a certain extent.