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We analyse quantile temporal-difference learning (QTD), a distributional reinforcement learning algorithm that has proven to be a key component in several successful large-scale applications of reinforcement learning. Despite these…

Equivariant neural networks have shown great success in reinforcement learning, improving sample efficiency and generalization when there is symmetry in the task. However, in many problems, only approximate symmetry is present, which makes…

机器学习 · 计算机科学 2025-04-24 Jung Yeon Park , Sujay Bhatt , Sihan Zeng , Lawson L. S. Wong , Alec Koppel , Sumitra Ganesh , Robin Walters

Applying Q-learning to high-dimensional or continuous action spaces can be difficult due to the required maximization over the set of possible actions. Motivated by techniques from amortized inference, we replace the expensive maximization…

机器学习 · 计算机科学 2020-01-23 Tom Van de Wiele , David Warde-Farley , Andriy Mnih , Volodymyr Mnih

Reinforcement learning (RL) is a control approach that can handle nonlinear stochastic optimal control problems. However, despite the promise exhibited, RL has yet to see marked translation to industrial practice primarily due to its…

机器学习 · 计算机科学 2021-04-15 Elton Pan , Panagiotis Petsagkourakis , Max Mowbray , Dongda Zhang , Antonio del Rio-Chanona

This paper introduces Meta-Q-Learning (MQL), a new off-policy algorithm for meta-Reinforcement Learning (meta-RL). MQL builds upon three simple ideas. First, we show that Q-learning is competitive with state-of-the-art meta-RL algorithms if…

机器学习 · 计算机科学 2020-04-07 Rasool Fakoor , Pratik Chaudhari , Stefano Soatto , Alexander J. Smola

Reinforcement learning is concerned with identifying reward-maximizing behaviour policies in environments that are initially unknown. State-of-the-art reinforcement learning approaches, such as deep Q-networks, are model-free and learn to…

人工智能 · 计算机科学 2017-08-18 Felix Leibfried , Nate Kushman , Katja Hofmann

A deep learning approach to reinforcement learning led to a general learner able to train on visual input to play a variety of arcade games at the human and superhuman levels. Its creators at the Google DeepMind's team called the approach:…

机器学习 · 计算机科学 2015-12-08 Ivan Sorokin , Alexey Seleznev , Mikhail Pavlov , Aleksandr Fedorov , Anastasiia Ignateva

Sample complexity bounds are a common performance metric in the Reinforcement Learning literature. In the discounted cost, infinite horizon setting, all of the known bounds have a factor that is a polynomial in $1/(1-\gamma)$, where $\gamma…

机器学习 · 计算机科学 2020-07-09 Adithya M. Devraj , Sean P. Meyn

Popular Maximum Entropy Inverse Reinforcement Learning approaches require the computation of expected state visitation frequencies for the optimal policy under an estimate of the reward function. This usually requires intermediate value…

机器学习 · 计算机科学 2020-08-05 Gabriel Kalweit , Maria Huegle , Moritz Werling , Joschka Boedecker

Reinforcement learning has been widely used in many problems, including quantum control of qubits. However, such problems can, at the same time, be solved by traditional, non-machine-learning methods, such as stochastic gradient descent and…

量子物理 · 物理学 2021-05-06 Xiao-Ming Zhang , Zezhu Wei , Raza Asad , Xu-Chen Yang , Xin Wang

Using deep neural nets as function approximator for reinforcement learning tasks have recently been shown to be very powerful for solving problems approaching real-world complexity. Using these results as a benchmark, we discuss the role…

机器学习 · 计算机科学 2016-01-21 Vincent François-Lavet , Raphael Fonteneau , Damien Ernst

Deep Q-learning Network (DQN) is a successful way which combines reinforcement learning with deep neural networks and leads to a widespread application of reinforcement learning. One challenging problem when applying DQN or other…

机器学习 · 计算机科学 2022-09-19 Zhe Zhang , Yukun Zou , Junjie Lai , Qing Xu

This paper studies the q-learning, recently coined as the continuous time counterpart of Q-learning by Jia and Zhou (2023), for continuous time Mckean-Vlasov control problems in the setting of entropy-regularized reinforcement learning. In…

机器学习 · 计算机科学 2024-11-04 Xiaoli Wei , Xiang Yu

Reinforcement learning (RL) has seen great advancements in the past few years. Nevertheless, the consensus among the RL community is that currently used methods, despite all their benefits, suffer from extreme data inefficiency, especially…

机器学习 · 计算机科学 2020-04-01 Kacper Kielak

We study offline reinforcement learning under $Q^\star$-approximation and partial coverage, a setting that motivates practical algorithms such as Conservative $Q$-Learning (CQL; Kumar et al., 2020) but has received limited theoretical…

机器学习 · 计算机科学 2026-02-13 Haolin Liu , Braham Snyder , Chen-Yu Wei

The goal of reinforcement learning algorithms is to estimate and/or optimise the value function. However, unlike supervised learning, no teacher or oracle is available to provide the true value function. Instead, the majority of…

机器学习 · 计算机科学 2018-05-25 Zhongwen Xu , Hado van Hasselt , David Silver

We study the interplay between the data distribution and Q-learning-based algorithms with function approximation. We provide a unified theoretical and empirical analysis as to how different properties of the data distribution influence the…

机器学习 · 计算机科学 2023-02-13 Pedro P. Santos , Diogo S. Carvalho , Alberto Sardinha , Francisco S. Melo

In this paper, we formulate the adaptive learning problem---the problem of how to find an individualized learning plan (called policy) that chooses the most appropriate learning materials based on learner's latent traits---faced in adaptive…

机器学习 · 计算机科学 2020-04-21 Xiao Li , Hanchen Xu , Jinming Zhang , Hua-hua Chang

Q-learning (QL), a common reinforcement learning algorithm, suffers from over-estimation bias due to the maximization term in the optimal Bellman operator. This bias may lead to sub-optimal behavior. Double-Q-learning tackles this issue by…

机器学习 · 计算机科学 2021-04-21 Oren Peer , Chen Tessler , Nadav Merlis , Ron Meir

This paper makes one step forward towards characterizing a new family of \textit{model-free} Deep Reinforcement Learning (DRL) algorithms. The aim of these algorithms is to jointly learn an approximation of the state-value function ($V$),…

机器学习 · 计算机科学 2019-10-15 Matthia Sabatelli , Gilles Louppe , Pierre Geurts , Marco A. Wiering