CR-CTC: Consistency regularization on CTC for improved speech recognition - Yao, Zengwei; Kang, Wei; Yang, Xiaoyu; Kuang, Fangjun; Guo, Liyong; Zhu, Han; Jin, Zengrui; Li, Zhaoqing; Lin, Long; Povey, Daniel (International Conference on Learning Representations, 2025)