Xiaofeng Sun — accepted AI-conference papers

2026

Uncovering the Gradient Geometry of Long CoT: A Spectral-guided Approach to Reasoning Distillation

Sinan Fan, Xiaofeng Sun, Chen Shen, Chenxi Huang, Shaotian Yan, Bing Wang +7

ICML 2026poster

Large reasoning models (LRMs) achieve remarkable reasoning performance by generating long chains-of-thought (CoT). However, standard supervised fine-tuning (SFT) treats all tokens uniformly, indiscriminately minimizing loss across both essential reasoning steps and those that are noisy, redundant, o…

Cited by 0 Source ↗Scholar ↗

2024

Bioinspired Soft Actuators for High Bending Stiffness and Flexible Spatial Locomotion

Jiawei Xiong, Yuchao Luo, Feng Guan, Xiaowen Zhao, Yi Zeng, Guowu Wei +2

RA-L 2024

Soft pneumatic actuators often struggle to achieve both a high degree of freedom and high bending stiffness simultaneously. In this letter, we present a bionic soft pneumatic actuator inspired by the intricate musculature of the elephant trunk, which employs a dual actuation mode of transverse-longi

Cited by 6 Source ↗Scholar ↗