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#artificial intelligence Preprint Oct 2026

ChunkAct: Action Chunking for Agentic Robotics

Agentic robotics places a large language model (LLM) agent in the robot control loop, where it composes perception, motion, and vision-language-action (VLA) tools under the guidance of a memory and thereby generalizes to new tasks without retraining. This generality comes at a steep price in efficiency. Every primitive...

Bing-Xin Xu, Wen-Rui Bao, Xin-Xin Liu et al. · 0 citations
#artificial intelligence Preprint Oct 2026

What Matters in Quality-Aware VLA Pretraining: A Benchmark and Empirical Study

How should demonstration quality be used during vision-language-action (VLA) pretraining to improve performance after target-task fine-tuning? We compare weighting, filtering, and conditioning across reward definitions and label granularities using 5,000 naturally suboptimal human demonstrations and 24 target tasks. Wi...

Ming-Xuan Yan, Li-Tian Gong, Di Huang et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Tev: Scaling Long-Horizon Agentic Environments with Dense Progress Rewards

Long-horizon agents have drawn growing attention for their ability to work autonomously -- from hours to days -- on economically valuable tasks, a capability essential to automated discovery and recursive self-improvement (RSI). Yet open-source models still struggle on long-horizon tasks, largely for lack of both train...

Wen-Bo Hu, Shraman Pramanick, Krishna Kumar Singh et al. · 0 citations
#artificial intelligence Preprint Oct 2026

DoubtLess: Training-Free Contrastive Decoding for Efficient Reasoning

Reasoning models achieve strong performance through long chains of thought (CoT), but often spend more tokens than needed to solve a problem. Existing ways to shorten the CoT require additional training for each model, add a fixed steering vector to the model's hidden states, or use decoding heuristics such as stopping...

Minghao Luo, Liang Chen · 0 citations
#artificial intelligence Preprint Open access Oct 2026

Hybrid Reasoning Agents

How can we build an agent that thinks beyond human language, yet still acts through it in the external environment? Modern LLM agents still reason and interact through text, while latent reasoning offers an efficient internal medium but lacks native tool access and reasoning transparency. We bridge these two directions...

Jiaru Zou, Yunzhe Qi, Sirui Chen et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Two Clocks: Why Larger Rollout Batches Learn Slower but Fail on Schedule in Reinforcement Learning with Verifiable Rewards

Reinforcement learning with verifiable rewards (RLVR) relies on costly model-generated responses, motivating larger rollout batches and square-root learning-rate scaling. Reported to approximately preserve progress per sample with one optimizer step per rollout, this rule is less understood in practical multi-step trai...

Yuan-Te Li, Jun-Wei Quan, Kai Qiu et al. · 0 citations
#artificial intelligence Preprint Oct 2026

LIBERO-RIG: A Hardware-Setup Robustness Benchmark for Vision-Language-Action Models

Robot policies are expected to generalize across deployment environments, including variations in the robot itself: cameras are bumped and remounted, calibrations drift, controllers run at different rates, and end-effector pads wear down. We present LIBERO-RIG, a benchmark that perturbs only the robot's hardware and se...

Andrea Yaoyun Cui, Han-Yu Wang, Xin-Yi Wang et al. · 1 citation
#artificial intelligence Preprint Open access Oct 2026

Fast Rates for Offline Q-Learning with KL Regularization

This paper investigates offline Q-learning for finite-horizon Markov decision processes with Kullback-Leibler (KL) regularization. Recent studies have shown that KL regularization can yield fast rates in offline decision-making problems. However, it remains unclear whether Q-learning, which adopts incremental stochasti...

Yize Hao, Guangxin Jiang, Shuang Qiu · 0 citations
#artificial intelligence Preprint Open access Oct 2026

RoboSimStudio: An Interactive Toolkit for Rapid Real2Sim of Robot Manipulation Tasks

It is difficult to accurately model the physics of the interaction between a robot and the objects it manipulates, including contact mechanics, coupled contact dynamics, deformations, stiffness and friction. We present RoboSimStudio (RSS), an interactive toolkit that makes choices of solver, contact model, and physical...

Kaiyuan Chen, Shuangyu Xie, Uksang Yoo et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Back-Translation Still Matters: Leveraging Monolingual Data for Low-Resource Machine Translation with LLMs

Pre-trained Large Language Model (LLMs) are effective on many tasks in zero-shot and few-shot settings. For machine translation of low-resource languages, the obvious options are few-shot prompting and fine-tuning on a small parallel set. We ask: what if moderate amounts of low-resource monolingual data are also availa...

Divyanshu Bathla, Parag Singla, Jitin Singla · 0 citations
#artificial intelligence Preprint Oct 2026

Optimizing Team Behavior via Extremum-seeking Control in Multi-agent Reinforcement Learning

In cooperative Multi-Agent Reinforcement Learning (MARL), agents must learn to coordinate their actions to achieve shared objectives. A key indicator of effective coordination is behavioral diversity, i.e., the agents'potential to enact distinct yet complementary control policies given the same set of observations. Alt...

S. Patel, Kshitij Jerath · 0 citations
#artificial intelligence Preprint Oct 2026

SEAR: Self-Evolving Agentic Robotics

Frontier language-model agents can now improve robots on their own: they write control code, test it, and keep what works as skills and memories for the next task. We introduce SEAR (Self-Evolving Agentic Robotics), a framework and benchmark built around two questions. Is the agent really learning, or just trying more...

Xin-Yi Wang, Bang-Zheng Li, Han-Yu Wang et al. · 4 citations · ⚡1

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Hugging Face Blog Nov 10, 2026

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