Zhang, Mengfei, and Zhenglin Wang. “CATS: Category-Aware Token-Level Steering for Training-Free Redundancy Reduction in Large Reasoning Models”. Proceedings of the AAAI Conference on Artificial Intelligence 40, no. 41 (March 14, 2026): 34764–34771. Accessed May 25, 2026. https://ojs.aaai.org/index.php/AAAI/article/view/40778.