Long Chen 0016 Yuhang Zheng 0003 Yulei Niu Hanwang Zhang Jun Xiao 0001 Counterfactual Samples Synthesizing and Training for Robust Visual Question Answering. 13218-13234 2023 November 45 IEEE Trans. Pattern Anal. Mach. Intell. 11 https://doi.org/10.1109/TPAMI.2023.3290012 db/journals/pami/pami45.html#ChenZNZX23