A Unified Cascaded Encoder ASR Model for Dynamic Model Sizes. - Ding, Shaojin; Wang, Weiran; Zhao, Ding; Sainath, Tara N.; He, Yanzhang; David, Robert; Botros, Rami; Wang, Xin; Panigrahy, Rina; Liang, Qiao; Hwang, Dongseong; McGraw, Ian; et al. (CoRR, 2022)