Yichen Guo, Tinghao Wang, Qizhe Zhang, Lingbei Meng, Yuan Zhang, Jiajun Cao, Hao Jiang, Chenwei Wu, Jixian Wu, Sixiang Chen, Tao Luo, Hongyang Cheng, Kai Tang, Chenxi Li, Renyuan Li, Xiande Huang, Wenya Wang, Shanghang Zhang

Training-free visual token reduction that preserves feature coverage, then progressively refines retained tokens as language and vision interact.

Co-first author

As a co-first author, I contributed to the design of adaptive-to-progressive token pruning and its evaluation across vision-language architectures.

Sixiang Chen, Jiaming Liu, Jixian Wu, Yichen Guo, Tinghao Wang, Siyuan Qian, Hao Chen, Jiajun Cao, Jian Tang, Shanghang Zhang

WorldEcho diagnoses action-following failures; WorldSync aligns generation with robot dynamics to support policy learning.

Core contributor

As a core contributor, I work on understanding and improving action following in robotic world models.

Paper CodeComing soon Project page Hugging FacePrivate dataset

Dataset access is currently restricted; data upload is pending.

Kai Tang, Peidong Jia, Zhong Chu, Jixian Wu, Rui Ma, Jiajun Cao, Fangyuan Zhao, Sixiang Chen, Yichen Guo, Xiaowei Chi, Chun-Kai Fan, Kevin Zhang, Jinchang Xu, Fubing Yang, Weishi Mi, Xiaozhu Ju, Jian Tang, Shanghang Zhang

Safe reinforcement learning for VLA policies through imagined rollouts in an interactive world model, balancing task progress and safety.

Co-author

Jinhao You, Shuo Lyu, Zhuohang Lyu, Tanxuan Li, Zibo Zhao, Jiaxiang Hu, Kai Tang, Yichen Guo

Training-free acceleration of visual geometry transformers with layer-wise token merging and spatially preserving K/V downsampling.

Co-author