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Offline reinforcement learning (RL) is a variant of RL where the policy is learned from a previously collected dataset of trajectories and rewards. In our work, we propose a practical approach to offline RL with large language models…

Pre-training has been a useful method for learning implicit transferable knowledge and it shows the benefit of offering complementary features across different modalities. Recent work mainly focuses on the modalities such as image and text,…

计算与语言 · 计算机科学 2022-12-09 Ziqi Zhang , Yile Wang , Yue Zhang , Donglin Wang

Data selection for finetuning Large Language Models (LLMs) can be framed as a budget-constrained optimization problem: maximizing a model's downstream performance under a strict training data budget. Solving this problem is generally…

机器学习 · 计算机科学 2025-10-01 Animesh Jha , Harshit Gupta , Ananjan Nandi

Developing effective quantitative trading strategies using reinforcement learning (RL) is challenging due to the high risks associated with online interaction with live financial markets. Consequently, offline RL, which leverages historical…

计算金融 · 定量金融 2024-11-28 Suyeol Yun

Offline Reinforcement Learning (RL) is structured to derive policies from static trajectory data without requiring real-time environment interactions. Recent studies have shown the feasibility of framing offline RL as a sequence modeling…

机器学习 · 计算机科学 2023-09-01 Abdelghani Ghanem , Philippe Ciblat , Mounir Ghogho

Reinforcement Learning (RL) has shown great potential for autonomous decision-making in the cybersecurity domain, enabling agents to learn through direct environment interaction. However, RL agents in Autonomous Cyber Operations (ACO)…

密码学与安全 · 计算机科学 2026-02-17 Konur Tholl , François Rivest , Mariam El Mezouar , Adrian Taylor , Ranwa Al Mallah

Offline reinforcement learning (RL) refers to the problem of learning policies entirely from a large batch of previously collected data. This problem setting offers the promise of utilizing such datasets to acquire policies without any…

机器学习 · 计算机科学 2020-11-24 Tianhe Yu , Garrett Thomas , Lantao Yu , Stefano Ermon , James Zou , Sergey Levine , Chelsea Finn , Tengyu Ma

Offline reinforcement learning (RL) refers to the problem of learning policies from a static dataset of environment interactions. Offline RL enables extensive use and re-use of historical datasets, while also alleviating safety concerns…

机器学习 · 计算机科学 2020-12-22 Rafael Rafailov , Tianhe Yu , Aravind Rajeswaran , Chelsea Finn

Reinforcement Learning (RL) is notoriously data-inefficient, which makes training on a real robot difficult. While model-based RL algorithms (world models) improve data-efficiency to some extent, they still require hours or days of…

机器学习 · 计算机科学 2023-10-25 Yunhai Feng , Nicklas Hansen , Ziyan Xiong , Chandramouli Rajagopalan , Xiaolong Wang

In sequential decision-making (SDM) tasks, methods like reinforcement learning (RL) and heuristic search have made notable advances in specific cases. However, they often require extensive exploration and face challenges in generalizing…

机器学习 · 计算机科学 2024-10-11 Xue Yan , Yan Song , Xidong Feng , Mengyue Yang , Haifeng Zhang , Haitham Bou Ammar , Jun Wang

Pretraining reinforcement learning (RL) models on offline datasets is a promising way to improve their training efficiency in online tasks, but challenging due to the inherent mismatch in dynamics and behaviors across various tasks. We…

机器学习 · 计算机科学 2024-06-06 Minting Pan , Yitao Zheng , Yunbo Wang , Xiaokang Yang

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.…

机器学习 · 计算机科学 2024-11-28 Joey Hong , Anca Dragan , Sergey Levine

The pretrain-finetuning paradigm in large-scale sequence models has made significant progress in natural language processing and computer vision tasks. However, such a paradigm is still hindered by several challenges in Reinforcement…

机器学习 · 计算机科学 2022-11-16 Runji Lin , Ye Li , Xidong Feng , Zhaowei Zhang , Xian Hong Wu Fung , Haifeng Zhang , Jun Wang , Yali Du , Yaodong Yang

Recent studies have successfully integrated large vision-language models (VLMs) into low-level robotic control by supervised fine-tuning (SFT) with expert robotic datasets, resulting in what we term vision-language-action (VLA) models.…

机器人学 · 计算机科学 2025-01-29 Yanjiang Guo , Jianke Zhang , Xiaoyu Chen , Xiang Ji , Yen-Jen Wang , Yucheng Hu , Jianyu Chen

We investigate the usage of Large Language Model (LLM) in collecting high-quality data to warm-start Reinforcement Learning (RL) algorithms for learning in some classical Markov Decision Process (MDP) environments. In this work, we focus on…

机器学习 · 计算机科学 2025-05-19 Thang Duong , Minglai Yang , Chicheng Zhang

Decision Transformer (DT) has emerged as a promising class of algorithms in offline reinforcement learning (RL) tasks, leveraging pre-collected datasets and Transformer's capability to model long sequences. Recent works have demonstrated…

机器学习 · 计算机科学 2025-12-03 Yu Yang , Pan Xu

Recent work has shown that offline reinforcement learning (RL) can be formulated as a sequence modeling problem (Chen et al., 2021; Janner et al., 2021) and solved via approaches similar to large-scale language modeling. However, any…

机器学习 · 计算机科学 2022-07-14 Qinqing Zheng , Amy Zhang , Aditya Grover

Offline reinforcement learning (RL) enables learning control policies by utilizing only prior experience, without any online interaction. This can allow robots to acquire generalizable skills from large and diverse datasets, without any…

机器学习 · 计算机科学 2021-09-24 Aviral Kumar , Anikait Singh , Stephen Tian , Chelsea Finn , Sergey Levine

Large pretrained models are showing increasingly better performance in reasoning and planning tasks across different modalities, opening the possibility to leverage them for complex sequential decision making problems. In this paper, we…

人工智能 · 计算机科学 2024-10-10 Martin Klissarov , Devon Hjelm , Alexander Toshev , Bogdan Mazoure

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…

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