OpenFWI: Large-scale Multi-structural Benchmark Datasets for Full Waveform Inversion - Deng, Chengyuan; Feng, Shihang; Wang, Hanchen; Zhang, Xitong; Jin, Peng; Feng, Yinan; Zeng, Qili; Chen, Yinpeng; Lin, Youzuo (Advances in Neural Information Processing Systems, 2022)