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20242026
most citedA Closer Look at Time Steps is Worthy of Triple Speed-Up for Diffusion Model Training

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cs.LG2026

Outperforming 1000 Euclidean Layers With Hyperbolic Goal-Conditioned RL

Timo Klein, Thomas Lang, Andrii Shkabrii +3

Scaling self-supervised contrastive reinforcement learning (CRL) to 1000-layer Euclidean neural networks has enabled state-of-the-art goal-reaching performance, yet wall-clock time…

cs.RO2026

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

Xiaojiang Peng, Kai Peng, Jie Lu +3

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 un…

cs.CV2026

OmniOPSD: Rationale-Privileged On-Policy Self-Distillation for Affective Computing

Zebang Cheng, Shuimu Chen, Boxue Yang +7

Reinforcement learning for multimodal large language models (MLLMs) is often hindered by severe reward sparsity in complex reasoning tasks. This challenge is particularly pronounce…

cs.RO2026

Unleashing More Actions via Action Compositional Training for VLA Models

Kai Peng, Jie Lu, Xiaojiang Peng

Vision-Language-Action models excel at robotic manipulation, driven by the scale and diversity of demonstration data. However, standard training paradigms often cause VLA models to…

cs.RO2026

Adaptive Action Chunking at Inference-time for Vision-Language-Action Models

Yuanchang Liang, Xiaobo Wang, Kai Wang +5

In Vision-Language-Action (VLA) models, action chunking (i.e., executing a sequence of actions without intermediate replanning) is a key technique to improve robotic manipulation a…

math.OC2026

On incremental and semi-global exponential stability of gradient flows satisfying generalized Łojasiewicz inequalities

Andreas Oliveira, Arthur C. B. de Oliveira, Mario Sznaier +1

The Łojasiewicz inequality characterizes objective-value convergence along gradient flows and, in special cases, yields exponential decay of the cost. However, such results do not…