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In offline model-based reinforcement learning (offline MBRL), we learn a dynamic model from historically collected data, and subsequently utilize the learned model and fixed datasets for policy learning, without further interacting with the…

机器学习 · 计算机科学 2022-10-13 Shentao Yang , Shujian Zhang , Yihao Feng , Mingyuan Zhou

While reinforcement learning (RL) methods that learn an internal model of the environment have the potential to be more sample efficient than their model-free counterparts, learning to model raw observations from high dimensional sensors…

机器学习 · 计算机科学 2023-06-27 Raj Ghugare , Homanga Bharadhwaj , Benjamin Eysenbach , Sergey Levine , Ruslan Salakhutdinov

Model-based Reinforcement Learning (MBRL) aims to make agents more sample-efficient, adaptive, and explainable by learning an explicit model of the environment. While the capabilities of MBRL agents have significantly improved in recent…

机器学习 · 计算机科学 2024-04-09 Ran Wei , Nathan Lambert , Anthony McDonald , Alfredo Garcia , Roberto Calandra

Model-Based Reinforcement Learning (MBRL) offers a promising direction for sample efficient learning, often achieving state of the art results for continuous control tasks. However, many existing MBRL methods rely on combining greedy…

机器学习 · 计算机科学 2020-02-10 Philip Ball , Jack Parker-Holder , Aldo Pacchiano , Krzysztof Choromanski , Stephen Roberts

Many model-based reinforcement learning (RL) methods follow a similar template: fit a model to previously observed data, and then use data from that model for RL or planning. However, models that achieve better training performance (e.g.,…

机器学习 · 计算机科学 2023-02-21 Benjamin Eysenbach , Alexander Khazatsky , Sergey Levine , Ruslan Salakhutdinov

Offline reinforcement learning (RL) offers a powerful paradigm for data-driven control. Compared to model-free approaches, offline model-based RL (MBRL) explicitly learns a world model from a static dataset and uses it as a surrogate…

机器学习 · 计算机科学 2026-02-02 Jiayu Chen , Le Xu , Aravind Venugopal , Jeff Schneider

Model-based reinforcement learning (MBRL) is a promising route to sample-efficient policy optimization. However, a known vulnerability of reconstruction-based MBRL consists of scenarios in which detailed aspects of the world are highly…

机器学习 · 计算机科学 2024-12-10 Miles Hutson , Isaac Kauvar , Nick Haber

In model-based reinforcement learning (MBRL), most algorithms rely on simulating trajectories from one-step dynamics models learned on data. A critical challenge of this approach is the compounding of one-step prediction errors as length of…

机器学习 · 计算机科学 2023-10-12 Abdelhakim Benechehab , Giuseppe Paolo , Albert Thomas , Maurizio Filippone , Balázs Kégl

Model-based reinforcement learning (MBRL) has demonstrated superior sample efficiency compared to model-free reinforcement learning (MFRL). However, the presence of inaccurate models can introduce biases during policy learning, resulting in…

机器学习 · 计算机科学 2025-03-27 Yongshuai Liu , Xin Liu

Model-based Reinforcement Learning (MBRL) allows data-efficient learning which is required in real world applications such as robotics. However, despite the impressive data-efficiency, MBRL does not achieve the final performance of…

机器学习 · 计算机科学 2019-08-19 Zhang-Wei Hong , Joni Pajarinen , Jan Peters

Designing and deriving effective model-based reinforcement learning (MBRL) algorithms with a performance improvement guarantee is challenging, mainly attributed to the high coupling between model learning and policy optimization. Many prior…

机器学习 · 计算机科学 2023-10-25 Hai Zhang , Hang Yu , Junqiao Zhao , Di Zhang , Chang Huang , Hongtu Zhou , Xiao Zhang , Chen Ye

Reinforcement learning (RL) solves sequential decision-making problems via a trial-and-error process interacting with the environment. While RL achieves outstanding success in playing complex video games that allow huge trial-and-error,…

机器学习 · 计算机科学 2022-06-22 Fan-Ming Luo , Tian Xu , Hang Lai , Xiong-Hui Chen , Weinan Zhang , Yang Yu

Model-based reinforcement learning (MBRL) agents typically learn world models by minimizing predictive loss. However, powerful RL optimizers inevitably exploit minor model inaccuracies, leading to simulator exploitation and a reality gap…

机器学习 · 计算机科学 2026-05-29 Christoph Dann , Yishay Mansour , Mehryar Mohri

Model-based reinforcement learning (RL) algorithms allow us to combine model-generated data with those collected from interaction with the real system in order to alleviate the data efficiency problem in RL. However, designing such…

机器学习 · 计算机科学 2020-06-25 Yinlam Chow , Brandon Cui , MoonKyung Ryu , Mohammad Ghavamzadeh

Model-based reinforcement learning (MBRL) has been shown to be a powerful framework for data-efficiently learning control of continuous tasks. Recent work in MBRL has mostly focused on using more advanced function approximators and planning…

机器学习 · 计算机科学 2021-04-20 Nathan Lambert , Brandon Amos , Omry Yadan , Roberto Calandra

By planning through a learned dynamics model, model-based reinforcement learning (MBRL) offers the prospect of good performance with little environment interaction. However, it is common in practice for the learned model to be inaccurate,…

机器学习 · 计算机科学 2021-03-31 Behzad Haghgoo , Allan Zhou , Archit Sharma , Chelsea Finn

We present an algorithm for local, regularized, policy improvement in reinforcement learning (RL) that allows us to formulate model-based and model-free variants in a single framework. Our algorithm can be interpreted as a natural extension…

A major challenge of reinforcement learning (RL) in real-world applications is the variation between environments, tasks or clients. Meta-RL (MRL) addresses this issue by learning a meta-policy that adapts to new tasks. Standard MRL methods…

机器学习 · 计算机科学 2023-10-03 Ido Greenberg , Shie Mannor , Gal Chechik , Eli Meirom

In reinforcement learning (RL), an autonomous agent learns to perform complex tasks by maximizing an exogenous reward signal while interacting with its environment. In real-world applications, test conditions may differ substantially from…

机器人学 · 计算机科学 2019-10-30 Matteo Turchetta , Andreas Krause , Sebastian Trimpe

Learning efficiently from small amounts of data has long been the focus of model-based reinforcement learning, both for the online case when interacting with the environment and the offline case when learning from a fixed dataset. However,…

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