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Model-based next state prediction and state value prediction are slow to converge. To address these challenges, we do the following: i) Instead of a neural network, we do model-based planning using a parallel memory retrieval system (which…

人工智能 · 计算机科学 2023-02-02 John Chong Min Tan , Mehul Motani

We present the first deep learning model to successfully learn control policies directly from high-dimensional sensory input using reinforcement learning. The model is a convolutional neural network, trained with a variant of Q-learning,…

Posterior sampling for reinforcement learning (PSRL) is an effective method for balancing exploration and exploitation in reinforcement learning. Randomised value functions (RVF) can be viewed as a promising approach to scaling PSRL.…

We design a simple reinforcement learning (RL) agent that implements an optimistic version of $Q$-learning and establish through regret analysis that this agent can operate with some level of competence in any environment. While we leverage…

机器学习 · 计算机科学 2021-07-13 Shi Dong , Benjamin Van Roy , Zhengyuan Zhou

Representation learning and exploration are among the key challenges for any deep reinforcement learning agent. In this work, we provide a singular value decomposition based method that can be used to obtain representations that preserve…

机器学习 · 计算机科学 2023-05-03 Yash Chandak , Shantanu Thakoor , Zhaohan Daniel Guo , Yunhao Tang , Remi Munos , Will Dabney , Diana L Borsa

In an unfamiliar setting, a model-based reinforcement learning agent can be limited by the accuracy of its world model. In this work, we present a novel, training-free approach to improving the performance of such agents separately from…

机器学习 · 计算机科学 2024-02-26 Martin Benfeghoul , Umais Zahid , Qinghai Guo , Zafeirios Fountas

Deep reinforcement learning has proven to be a great success in allowing agents to learn complex tasks. However, its application to actual robots can be prohibitively expensive. Furthermore, the unpredictability of human behavior in…

机器人学 · 计算机科学 2019-08-16 Mohammad Thabet , Massimiliano Patacchiola , Angelo Cangelosi

A key challenge in model-based reinforcement learning (RL) is to synthesize computationally efficient and accurate environment models. We show that carefully designed generative models that learn and operate on compact state…

Consistent and reproducible evaluation of Deep Reinforcement Learning (DRL) is not straightforward. In the Arcade Learning Environment (ALE), small changes in environment parameters such as stochasticity or the maximum allowed play time can…

人工智能 · 计算机科学 2019-11-11 Marin Toromanoff , Emilie Wirbel , Fabien Moutarde

Successful applications of reinforcement learning in real-world problems often require dealing with partially observable states. It is in general very challenging to construct and infer hidden states as they often depend on the agent's…

机器学习 · 计算机科学 2015-11-20 Xiujun Li , Lihong Li , Jianfeng Gao , Xiaodong He , Jianshu Chen , Li Deng , Ji He

Interactive reinforcement learning has allowed speeding up the learning process in autonomous agents by including a human trainer providing extra information to the agent in real-time. Current interactive reinforcement learning research has…

人工智能 · 计算机科学 2021-09-06 Adam Bignold , Francisco Cruz , Richard Dazeley , Peter Vamplew , Cameron Foale

A central problem in artificial intelligence is that of planning to maximize future reward under uncertainty in a partially observable environment. In this paper we propose and demonstrate a novel algorithm which accurately learns a model…

机器学习 · 计算机科学 2009-12-15 Byron Boots , Sajid M. Siddiqi , Geoffrey J. Gordon

Deep reinforcement learning agents have recently been successful across a variety of discrete and continuous control tasks; however, they can be slow to train and require a large number of interactions with the environment to learn a…

机器学习 · 计算机科学 2018-12-19 Thomas Carr , Maria Chli , George Vogiatzis

Reinforcement learning (RL) has shown great success in solving many challenging tasks via use of deep neural networks. Although using deep learning for RL brings immense representational power, it also causes a well-known…

机器学习 · 计算机科学 2022-04-18 Sahir , Ercüment İlhan , Srijita Das , Matthew E. Taylor

Interactive adaptive systems powered by Reinforcement Learning (RL) have many potential applications, such as intelligent tutoring systems. In such systems there is typically an external human system designer that is creating, monitoring…

人工智能 · 计算机科学 2020-04-06 Ramtin Keramati , Emma Brunskill

Self-supervised representation learning has achieved remarkable success in recent years. By subverting the need for supervised labels, such approaches are able to utilize the numerous unlabeled images that exist on the Internet and in…

计算机视觉与模式识别 · 计算机科学 2021-09-01 Yilun Du , Chuang Gan , Phillip Isola

Although deep reinforcement learning (RL) has recently enjoyed many successes, its methods are still data inefficient, which makes solving numerous problems prohibitively expensive in terms of data. We aim to remedy this by taking advantage…

机器学习 · 计算机科学 2022-08-29 Hlynur Davíð Hlynsson

Deep reinforcement learning (deep RL) is a combination of deep learning with reinforcement learning principles to create efficient methods that can learn by interacting with its environment. This has led to breakthroughs in many complex…

音频与语音处理 · 电气工程与系统科学 2020-05-25 Thejan Rajapakshe , Siddique Latif , Rajib Rana , Sara Khalifa , Björn W. Schuller

Reinforcement learning (RL) studies how an agent comes to achieve reward in an environment through interactions over time. Recent advances in machine RL have surpassed human expertise at the world's oldest board games and many classic video…

While the rapid progress of deep learning fuels end-to-end reinforcement learning (RL), direct application, especially in high-dimensional space like robotic scenarios still suffers from low sample efficiency. Therefore State Representation…