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Deep Reinforcement Learning (RL) methods rely on experience replay to approximate the minibatched supervised learning setting; however, unlike supervised learning where access to lots of training data is crucial to generalization,…

机器学习 · 计算机科学 2021-02-24 Brett Daley , Cameron Hickert , Christopher Amato

Training chatbots using the reinforcement learning paradigm is challenging due to high-dimensional states, infinite action spaces and the difficulty in specifying the reward function. We address such problems using clustered actions instead…

人工智能 · 计算机科学 2019-08-28 Heriberto Cuayáhuitl , Donghyeon Lee , Seonghan Ryu , Sungja Choi , Inchul Hwang , Jihie Kim

Deep Reinforcement Learning (DRL) has become a powerful strategy to solve complex decision making problems based on Deep Neural Networks (DNNs). However, it is highly data demanding, so unfeasible in physical systems for most applications.…

机器学习 · 计算机科学 2018-10-02 Rodrigo Pérez-Dattari , Carlos Celemin , Javier Ruiz-del-Solar , Jens Kober

Owe to the recent advancements in Artificial Intelligence especially deep learning, many data-driven decision support systems have been implemented to facilitate medical doctors in delivering personalized care. We focus on the deep…

机器学习 · 计算机科学 2019-07-24 Siqi Liu , Kee Yuan Ngiam , Mengling Feng

Deep learning has revolutionized many areas of machine learning, from computer vision to natural language processing, but these high-performance models are generally "black box." Explaining such models would improve transparency and trust…

机器学习 · 计算机科学 2023-05-18 Daniel Lundstrom , Meisam Razaviyayn

The widespread use of knowledge graphs in various fields has brought about a challenge in effectively integrating and updating information within them. When it comes to incorporating contexts, conventional methods often rely on rules or…

人工智能 · 计算机科学 2024-04-22 Ngoc Quach , Qi Wang , Zijun Gao , Qifeng Sun , Bo Guan , Lillian Floyd

With the development of deep representation learning, the domain of reinforcement learning (RL) has become a powerful learning framework now capable of learning complex policies in high dimensional environments. This review summarises deep…

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

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…

Deep reinforcement learning (DeepRL) agents surpass human-level performance in many tasks. However, the direct mapping from states to actions makes it hard to interpret the rationale behind the decision-making of the agents. In contrast to…

机器学习 · 计算机科学 2023-04-07 Zhao Yang , Song Bai , Li Zhang , Philip H. S. Torr

Deep reinforcement learning (DRL) has shown incredible performance in learning various tasks to the human level. However, unlike human perception, current DRL models connect the entire low-level sensory input to the state-action values…

机器学习 · 计算机科学 2017-12-14 Jinyoung Choi , Beom-Jin Lee , Byoung-Tak Zhang

Reinforcement learning (RL) has increasingly become a pivotal technique in the post-training of large language models (LLMs). The effective exploration of the output space is essential for the success of RL. We observe that for complex…

机器学习 · 计算机科学 2025-07-08 Shihan Dou , Muling Wu , Jingwen Xu , Rui Zheng , Tao Gui , Qi Zhang , Xuanjing Huang

Deep reinforcement learning, applied to vision-based problems like Atari games, maps pixels directly to actions; internally, the deep neural network bears the responsibility of both extracting useful information and making decisions based…

机器学习 · 计算机科学 2019-03-05 Giuseppe Cuccu , Julian Togelius , Philippe Cudre-Mauroux

Reinforcement learning (RL) research focuses on general solutions that can be applied across different domains. This results in methods that RL practitioners can use in almost any domain. However, recent studies often lack the engineering…

机器学习 · 计算机科学 2021-07-05 Anssi Kanervisto , Christian Scheller , Yanick Schraner , Ville Hautamäki

Experience replay (ER) is a fundamental component of off-policy deep reinforcement learning (RL). ER recalls experiences from past iterations to compute gradient estimates for the current policy, increasing data-efficiency. However, the…

机器学习 · 计算机科学 2019-05-21 Guido Novati , Petros Koumoutsakos

In the last decade, Deep Reinforcement Learning has evolved into a powerful tool for complex sequential decision-making problems. It combines deep learning's proficiency in processing rich input signals with reinforcement learning's…

机器学习 · 计算机科学 2024-12-11 Julien Roy

In natural language processing (NLP), deep neural networks (DNNs) could model complex interactions between context and have achieved impressive results on a range of NLP tasks. Prior works on feature interaction attribution mainly focus on…

计算与语言 · 计算机科学 2023-10-27 Xiaolei Lu , Jianghong Ma , Haode Zhang

Typical person re-identification (re-ID) methods train a deep CNN to extract deep features and combine them with a distance metric for the final evaluation. In this work, we focus on exploiting the full information encoded in the deep…

计算机视觉与模式识别 · 计算机科学 2018-11-22 Yong Liu , Lin Shang , Andy Song

Reinforcement learning is a machine learning approach based on behavioral psychology. It is focused on learning agents that can acquire knowledge and learn to carry out new tasks by interacting with the environment. However, a problem…

人工智能 · 计算机科学 2022-12-15 Hugo Muñoz , Ernesto Portugal , Angel Ayala , Bruno Fernandes , Francisco Cruz

Deep learning classifiers achieve state-of-the-art performance in various risk detection applications. They explore rich semantic representations and are supposed to automatically discover risk behaviors. However, due to the lack of…

密码学与安全 · 计算机科学 2025-05-15 Yiling He , Jian Lou , Zhan Qin , Kui Ren