The LAIX Systems in the BEA-2019 GEC Shared Task. - Ruobing Li; Chuan Wang; Yefei Zha; Yonghong Yu; Shiman Guo; Qiang Wang; Yang Liu; Hui Lin (BEA@ACL, 2019)

Gated Convolutional Bidirectional Attention-based Model for Off-topic Spoken Response Detection. - Yefei Zha; Ruobing Li; Hui Lin (ACL, 2020)