Socially Interactive Agents (SIAs) are physical or virtual embodied agents that display similar behavior as human multimodal behavior. Modeling SIAs' non-verbal behavior, such as speech and facial gestures, has always been a challenging task, given that a SIA can take the role of a speaker or a listener. A SIA must emit appropriate behavior adapted to its own speech, its previous behaviors (intra-personal), and the User's behaviors (inter-personal) for both roles. We propose AMII, a novel approach to synthesize adaptive facial gestures for SIAs while interacting with Users and acting interchangeably as a speaker or as a listener. AMII is characterized by modality memory encoding schema - where modality corresponds to either speech or facial gestures - and makes use of attention mechanisms to capture the intra-personal and inter-personal relationships. We validate our approach by conducting objective evaluations and comparing it with the state-of-the-art approaches.
@article{arxiv.2305.11310,
title = {AMII: Adaptive Multimodal Inter-personal and Intra-personal Model for Adapted Behavior Synthesis},
author = {Jieyeon Woo and Mireille Fares and Catherine Pelachaud and Catherine Achard},
journal= {arXiv preprint arXiv:2305.11310},
year = {2023}
}