Xiaobo Wang

AC-VLA: Robust Out-of-Distribution Action Execution via Compositional Learning

Xiaojiang Peng, Kai Peng, Jie Lu, Zheng Lian, Zitong YU, Xiaobo Wang

Vision-Language-Action (VLA) models excel at end-to-end robotic manipulation but struggle with out-of-distribution (OOD) generalization when familiar sub-tasks are recombined in unseen configurations. We identify two mutually reinforcing failure modes: \emph{trajectory overfittin…Read more

Dive Into the Implicit Biases of Low-rank Vision-language Alignment

Mingjia Shi, Shuo Wang, Xiaobo Wang, Sifan Zhou, Kai Wang, Tianyu Fu, et al.

Vision-language alignment, the stage that bridges pretrained vision encoders and large language models, is widely treated as a form of pretraining requiring full-parameter updates. We challenge this view and investigate what happens when low-rank adaptation is applied to the LLM…Read more

AlphaGo-driven generative machine learning framework for inverse topology synthesis and optimization of planar antennas

Xiaobo Wang, Suomin Cui, Moein Nazari, Gang Kang, Jian Liu