Hu, Chenyu, Xiaotong Li, Hao Zhu, and Biao Hou. “Hierarchical Direction Perception via Atomic Dot-Product Operators for Rotation-Invariant Point Clouds Learning”. Proceedings of the AAAI Conference on Artificial Intelligence 40, no. 6 (March 14, 2026): 4807–4815. Accessed May 14, 2026. https://ojs.aaai.org/index.php/AAAI/article/view/42483.