CORTEXA
← Browse

Liming Chen

3 papers indexed

arxivcs.ROcs.AI2026-07-10

More Structure, Not More Capacity: Object-Centric Representations for Visuomotor Imitation Learning

Yi Li, Alexandre Chapin, Liming Chen, Jan Peters, Alap Kshirsagar

Robotic manipulation policies rely on pre-trained vision models that give either a global scene embedding or a dense patch grid. Both mix task-relevant and task-irrelevant features. Object-centric slot representations are a structured alternative: they group features into a few p…

View free PDFSource page
arxivcs.RO2026-07-08

PriGo: Test-Time Primitive Guidance to Diffusion and Flow Policies for Adaptive Robotic Manipulation

Zezeng Li, Enda Xiang, Thuy Tran, Di Huang, Momath Thiam, Liming Chen

Imitation learning has enabled remarkable progress in robotic manipulation, especially with diffusion and flow-based policies that generate complex visuomotor behaviors directly from demonstrations. Yet, despite their strong performance, these policies often fail to generalize ac…

View free PDFSource page
arxivcs.RO2026-06-28

CORE Planner: Contextual-memory Oriented Reinforcement-learning in Unknown Environments for Robot Navigation

Jintao Kong, Zhihao Zhang, Weihuang Chen, Liming Chen, Zhongyu Guo, Shuaiyu Liu, et al.

Autonomous navigation in unknown environments requires a robot to efficiently reach a predefined goal while exploring without prior maps. Although progress has been made in this area, most existing works still rely on traditional planning methods with hand-crafted rules, while le…

View free PDFSource page