Zhang, J. et al. 2026. xMHashSeg: Cross-modal Hash Learning for Training-free Unsupervised LiDAR Semantic Segmentation. Proceedings of the AAAI Conference on Artificial Intelligence. 40, 15 (Mar. 2026), 12538–12546. DOI:https://doi.org/10.1609/aaai.v40i15.38248.