Building Proactive Voice Assistants: When and How (not) to Interact. - Ondrej Miksik; I. Munasinghe; J. Asensio-Cubero; S. Reddy Bethi; S.-T. Huang; S. Zylfo; Xuechen Liu; T. Nica; A. Mitrocsak; S. Mezza; Rory Beard; Ruibo Shi; et al. (CoRR, 2020)