GlowImp: Combining GLOW and GAN for Multivariate Time Series Imputation. - Caizheng Liu; Houquan Zhou 002; Zhi Sun; Guangfan Cui (ICA3PP (1), 2021)

CGCNImp: a causal graph convolutional network for multivariate time series imputation. - Caizheng Liu; Guangfan Cui; Shenghua Liu (PeerJ Comput. Sci., 2022)

Heterogeneous multivariate time series imputation by transformer model with missing position encoding. - Caizheng Liu; Zhengyu Zhu 001; Wanming Hao; Gangcan Sun (Expert Syst. Appl., 2025)