FROM THE EDITORS OF THE SPECIAL ISSUE

摘要

Welcome to the special issue on intelligent virtual agents. Intelligent virtual agents (IVAs) are interactive characters that, in spite of being merely 2D or 3D computer graphics models, exhibit human-like qualities and communicate with humans or with each other using natural human modalities such as speech and gesture. They are capable of real-time perception, cognition, and action, allowing them to participate in a dynamic physical and social environment.