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Value-based reinforcement learning (RL) can in principle learn effective policies for a wide range of multi-turn problems, from games to dialogue to robotic control, including via offline RL from static previously collected datasets.…

Machine Learning · Computer Science 2024-11-28 Joey Hong , Anca Dragan , Sergey Levine

Recent vision-language-action models (VLAs) build upon pretrained vision-language models and leverage diverse robot datasets to demonstrate strong task execution, language following ability, and semantic generalization. Despite these…

Robotics · Computer Science 2025-04-29 Moo Jin Kim , Chelsea Finn , Percy Liang

Reinforcement learning (RL) has recently shown strong potential in improving the reasoning capabilities of large language models and is now being actively extended to vision-language models (VLMs). However, existing RL applications in VLMs…

Machine Learning · Computer Science 2025-04-07 Yan Ma , Steffi Chern , Xuyang Shen , Yiran Zhong , Pengfei Liu

Reinforcement learning (RL) has emerged as a critical paradigm for post-training Vision-Language-Action (VLA) models, enabling embodied agents to adapt and improve through environmental interaction. However, existing RL frameworks for VLAs…

Current vision-language models (VLMs) still exhibit inferior performance on knowledge-intensive tasks, primarily due to the challenge of accurately encoding all the associations between visual objects and scenes to their corresponding…

Computation and Language · Computer Science 2024-10-16 Jingyuan Qi , Zhiyang Xu , Rulin Shao , Yang Chen , Jin Di , Yu Cheng , Qifan Wang , Lifu Huang

Recent progress in Reinforcement Learning (RL) provides a principled approach to optimizing Vision-Language-Action (VLA) models, facilitating a shift from trajectory imitation to active learning in the task environment. Despite improvements…

Robotics · Computer Science 2026-05-19 Sixu Lin , Yunpeng Qing , Litao Liu , Ming Zhou , Ruixing Jin , Xiaoyi Fan , Guiliang Liu

In recent years, training methods centered on Reinforcement Learning (RL) have markedly enhanced the reasoning and alignment performance of Large Language Models (LLMs), particularly in understanding human intents, following user…

Computation and Language · Computer Science 2025-09-23 Keliang Liu , Dingkang Yang , Ziyun Qian , Weijie Yin , Yuchi Wang , Hongsheng Li , Jun Liu , Peng Zhai , Yang Liu , Lihua Zhang

Recent advances at the intersection of reinforcement learning (RL) and visual intelligence have enabled agents that not only perceive complex visual scenes but also reason, generate, and act within them. This survey offers a critical and…

Computer Vision and Pattern Recognition · Computer Science 2025-12-24 Weijia Wu , Chen Gao , Joya Chen , Kevin Qinghong Lin , Qingwei Meng , Yiming Zhang , Yuke Qiu , Hong Zhou , Mike Zheng Shou

Vision-Language-Action (VLA) models have demonstrated strong performance across a wide range of robotic manipulation tasks. Despite the success, extending large pretrained Vision-Language Models (VLMs) to the action space can induce…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Yiye Chen , Yanan Jian , Xiaoyi Dong , Shuxin Cao , Jing Wu , Patricio Vela , Benjamin E. Lundell , Dongdong Chen

The growing success of Vision-Language-Action (VLA) models stems from the promise that pretrained Vision-Language Models (VLMs) can endow agents with transferable world knowledge and vision-language (VL) grounding, laying a foundation for…

Machine Learning · Computer Science 2025-10-30 Nikita Kachaev , Mikhail Kolosov , Daniil Zelezetsky , Alexey K. Kovalev , Aleksandr I. Panov

Robotic manipulation, a key frontier in robotics and embodied AI, requires precise motor control and multimodal understanding, yet traditional rule-based methods fail to scale or generalize in unstructured, novel environments. In recent…

Robotics · Computer Science 2025-09-04 Rui Shao , Wei Li , Lingsen Zhang , Renshan Zhang , Zhiyang Liu , Ran Chen , Liqiang Nie

Vision-Language-Action (VLA) models are formulated to ground instructions in visual context and generate action sequences for robotic manipulation. Despite recent progress, VLA models still face challenges in learning related and reusable…

Robotics · Computer Science 2026-03-11 Ziyue Zhu , Shangyang Wu , Shuai Zhao , Zhiqiu Zhao , Shengjie Li , Yi Wang , Fang Li , Haoran Luo

Vision-Language-Action (VLA) models have demonstrated potential in autonomous driving. However, two critical challenges hinder their development: (1) Existing VLA architectures are typically based on imitation learning in open-loop setup…

Artificial Intelligence · Computer Science 2025-08-18 Anqing Jiang , Yu Gao , Yiru Wang , Zhigang Sun , Shuo Wang , Yuwen Heng , Hao Sun , Shichen Tang , Lijuan Zhu , Jinhao Chai , Jijun Wang , Zichong Gu , Hao Jiang , Li Sun

Vision-Language-Action (VLA) models based on flow matching have shown excellent performance in general-purpose robotic manipulation tasks. However, the action accuracy of these models on complex downstream tasks is unsatisfactory. One…

Robotics · Computer Science 2025-09-05 Hongyin Zhang , Shiyuan Zhang , Junxi Jin , Qixin Zeng , Yifan Qiao , Hongchao Lu , Donglin Wang

Offline reinforcement learning (RL) aims to find a near-optimal policy using pre-collected datasets. In real-world scenarios, data collection could be costly and risky; therefore, offline RL becomes particularly challenging when the…

Machine Learning · Computer Science 2024-12-18 Ruizhe Shi , Yuyao Liu , Yanjie Ze , Simon S. Du , Huazhe Xu

Reinforcement learning (RL) is a promising approach for aligning large language models (LLMs) knowledge with sequential decision-making tasks. However, few studies have thoroughly investigated the impact on LLM agents capabilities of…

While state-of-the-art vision-language models (VLMs) have demonstrated remarkable capabilities in complex visual-text tasks, their success heavily relies on massive model scaling, limiting their practical deployment. Small-scale VLMs offer…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Huilin Deng , Ding Zou , Rui Ma , Hongchen Luo , Yang Cao , Yu Kang

Recently, reinforcement learning (RL)-based tuning has shifted the trajectory of Multimodal Large Language Models (MLLMs), particularly following the introduction of Group Relative Policy Optimization (GRPO). However, directly applying it…

Computation and Language · Computer Science 2025-05-21 Wenhui Zhu , Xuanzhao Dong , Xin Li , Peijie Qiu , Xiwen Chen , Abolfazl Razi , Aris Sotiras , Yi Su , Yalin Wang

Vision-Language-Action (VLA) models have emerged as a powerful paradigm for robotic manipulation. However, existing post-training methods face a dilemma between stability and exploration: Supervised Fine-Tuning (SFT) is constrained by…

Robotics · Computer Science 2026-03-17 Jiashun Li , Xiaoyu Shi , Hong Xie , Mingsheng Shang , Yun Lu

Reinforcement Learning (RL)-based recommender systems have demonstrated promising performance in meeting user expectations by learning to make accurate next-item recommendations from historical user-item interactions. However, existing…

Information Retrieval · Computer Science 2024-03-26 Jie Wang , Alexandros Karatzoglou , Ioannis Arapakis , Joemon M. Jose