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In this paper we propose a novel gradient algorithm to learn a policy from an expert's observed behavior assuming that the expert behaves optimally with respect to some unknown reward function of a Markovian Decision Problem. The…

机器学习 · 计算机科学 2012-06-26 Gergely Neu , Csaba Szepesvari

Standard deep reinforcement learning (DRL) aims to maximize expected reward, considering collected experiences equally in formulating a policy. This differs from human decision-making, where gains and losses are valued differently and…

机器学习 · 计算机科学 2023-11-17 Jared Markowitz , Ryan W. Gardner , Ashley Llorens , Raman Arora , I-Jeng Wang

We propose policy gradient algorithms for solving a risk-sensitive reinforcement learning (RL) problem in on-policy as well as off-policy settings. We consider episodic Markov decision processes, and model the risk using the broad class of…

机器学习 · 计算机科学 2024-06-25 Nithia Vijayan , Prashanth L. A

Modern navigation algorithms based on deep reinforcement learning (RL) show promising efficiency and robustness. However, most deep RL algorithms operate in a risk-neutral manner, making no special attempt to shield users from relatively…

机器学习 · 计算机科学 2021-04-12 Jinyoung Choi , Christopher R. Dance , Jung-eun Kim , Seulbin Hwang , Kyung-sik Park

Policy gradient methods, which have been extensively studied in the last decade, offer an effective and efficient framework for reinforcement learning problems. However, their performances can often be unsatisfactory, suffering from…

机器学习 · 计算机科学 2026-01-27 Shihab Ahmed , El Houcine Bergou , Aritra Dutta , Yue Wang

Deep Reinforcement Learning (DRL) algorithms often require a large amount of data and struggle in sparse-reward domains with long planning horizons and multiple sub-goals. In this paper, we propose a neuro-symbolic extension of Proximal…

人工智能 · 计算机科学 2026-04-29 Simone Murari , Celeste Veronese , Daniele Meli

Game-theoretic resource allocation on graphs (GRAG) involves two players competing over multiple steps to control nodes of interest on a graph, a problem modeled as a multi-step Colonel Blotto Game (MCBG). Finding optimal strategies is…

机器学习 · 计算机科学 2025-05-13 Zijian An , Lifeng Zhou

Most deep reinforcement learning (RL) algorithms distill experience into parametric behavior policies or value functions via gradient updates. While effective, this approach has several disadvantages: (1) it is computationally expensive,…

Option-critic learning is a general-purpose reinforcement learning (RL) framework that aims to address the issue of long term credit assignment by leveraging temporal abstractions. However, when dealing with extended timescales, discounting…

机器学习 · 计算机科学 2019-11-21 Akshay Dharmavaram , Matthew Riemer , Shalabh Bhatnagar

We introduce a distributional method for learning the optimal policy in risk averse Markov decision process with finite state action spaces, latent costs, and stationary dynamics. We assume sequential observations of states, actions, and…

机器学习 · 计算机科学 2023-03-01 Ziteng Cheng , Sebastian Jaimungal , Nick Martin

Reinforcement learning has been widely applied to diffusion and flow models for visual tasks such as text-to-image generation. However, these tasks remain challenging because diffusion models have intractable likelihoods, which creates a…

机器学习 · 计算机科学 2026-05-20 Jaemoo Choi , Yuchen Zhu , Wei Guo , Petr Molodyk , Bo Yuan , Jinbin Bai , Yi Xin , Molei Tao , Yongxin Chen

We consider reinforcement learning (RL) methods in offline domains without additional online data collection, such as mobile health applications. Most of existing policy optimization algorithms in the computer science literature are…

机器学习 · 统计学 2022-07-28 Chengchun Shi , Shikai Luo , Yuan Le , Hongtu Zhu , Rui Song

Policy gradient methods have become one of the most popular classes of algorithms for multi-agent reinforcement learning. A key challenge, however, that is not addressed by many of these methods is multi-agent credit assignment: assessing…

多智能体系统 · 计算机科学 2024-12-20 Jacopo Castellini , Sam Devlin , Frans A. Oliehoek , Rahul Savani

This work adopts the very successful distributional perspective on reinforcement learning and adapts it to the continuous control setting. We combine this within a distributed framework for off-policy learning in order to develop what we…

We introduce Recurrent Predictive State Policy (RPSP) networks, a recurrent architecture that brings insights from predictive state representations to reinforcement learning in partially observable environments. Predictive state policy…

机器学习 · 统计学 2018-03-06 Ahmed Hefny , Zita Marinho , Wen Sun , Siddhartha Srinivasa , Geoffrey Gordon

Deep reinforcement learning includes a broad family of algorithms that parameterise an internal representation, such as a value function or policy, by a deep neural network. Each algorithm optimises its parameters with respect to an…

机器学习 · 计算机科学 2020-07-17 Zhongwen Xu , Hado van Hasselt , Matteo Hessel , Junhyuk Oh , Satinder Singh , David Silver

Action-constrained reinforcement learning (RL) is a widely-used approach in various real-world applications, such as scheduling in networked systems with resource constraints and control of a robot with kinematic constraints. While the…

机器学习 · 计算机科学 2021-08-03 Jyun-Li Lin , Wei Hung , Shang-Hsuan Yang , Ping-Chun Hsieh , Xi Liu

The increase of renewable energy generation towards the zero-emission target is making the problem of controlling power grids more and more challenging. The recent series of competitions Learning To Run a Power Network (L2RPN) have…

系统与控制 · 电气工程与系统科学 2024-09-10 Gianvito Losapio , Davide Beretta , Marco Mussi , Alberto Maria Metelli , Marcello Restelli

In this paper, we consider jointly optimizing cell load balance and network throughput via a reinforcement learning (RL) approach, where inter-cell handover (i.e., user association assignment) and massive MIMO antenna tilting are configured…

机器学习 · 计算机科学 2020-12-03 Zhou Zhou , Yan Xin , Hao Chen , Charlie Zhang , Lingjia Liu

Latent diffusion models are the state-of-the-art for synthetic image generation. To align these models with human preferences, training the models using reinforcement learning on human feedback is crucial. Black et. al 2024 introduced…

机器学习 · 计算机科学 2024-04-09 Mo Kordzanganeh , Danial Keshvary , Nariman Arian