Cheng, M., L. Hui, J. Xie, and J. Yang. “SSPC-Net: Semi-Supervised Semantic 3D Point Cloud Segmentation Network”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 35, no. 2, May 2021, pp. 1140-7, doi:10.1609/aaai.v35i2.16200.