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Offline reinforcement learning (RL) has emerged as a prevalent and effective methodology for real-world recommender systems, enabling learning policies from historical data and capturing user preferences. In offline RL, reward shaping…

信息检索 · 计算机科学 2025-07-01 Wenzheng Shu , Yanxiang Zeng , Yongxiang Tang , Teng Sha , Ning Luo , Yanhua Cheng , Xialong Liu , Fan Zhou , Peng Jiang

Offline reinforcement learning (RL) aims to find an optimal policy for Markov decision processes (MDPs) using a pre-collected dataset. In this work, we revisit the linear programming (LP) reformulation of Markov decision processes for…

机器学习 · 计算机科学 2024-12-11 Asuman Ozdaglar , Sarath Pattathil , Jiawei Zhang , Kaiqing Zhang

Offline reinforcement learning (RL) allows for the training of competent agents from offline datasets without any interaction with the environment. Online finetuning of such offline models can further improve performance. But how should we…

机器学习 · 计算机科学 2023-03-31 Yicheng Luo , Jackie Kay , Edward Grefenstette , Marc Peter Deisenroth

Online reinforcement learning (RL) methods are often data-inefficient or unreliable, making them difficult to train on real robotic hardware, especially quadruped robots. Learning robotic tasks from pre-collected data is a promising…

机器人学 · 计算机科学 2024-10-28 Hongyin Zhang , Shuyu Yang , Donglin Wang

Offline reinforcement learning (ORL) holds great promise for robot learning due to its ability to learn from arbitrary pre-generated experience. However, current ORL benchmarks are almost entirely in simulation and utilize contrived…

机器人学 · 计算机科学 2022-10-14 Gaoyue Zhou , Liyiming Ke , Siddhartha Srinivasa , Abhinav Gupta , Aravind Rajeswaran , Vikash Kumar

Link adaptation (LA) is an essential function in modern wireless communication systems that dynamically adjusts the transmission rate of a communication link to match time- and frequency-varying radio link conditions. However, factors such…

机器学习 · 计算机科学 2024-12-02 Samuele Peri , Alessio Russo , Gabor Fodor , Pablo Soldati

In reinforcement learning (RL), there are two major settings for interacting with the environment: online and offline. Online methods explore the environment at significant time cost, and offline methods efficiently obtain reward signals by…

机器学习 · 计算机科学 2023-06-19 Changyu Chen , Xiting Wang , Yiqiao Jin , Victor Ye Dong , Li Dong , Jie Cao , Yi Liu , Rui Yan

Offline reinforcement learning (RL) holds promise as a means to learn high-reward policies from a static dataset, without the need for further environment interactions. However, a key challenge in offline RL lies in effectively stitching…

机器学习 · 计算机科学 2023-09-14 Siddarth Venkatraman , Shivesh Khaitan , Ravi Tej Akella , John Dolan , Jeff Schneider , Glen Berseth

Offline reinforcement learning requires reconciling two conflicting aims: learning a policy that improves over the behavior policy that collected the dataset, while at the same time minimizing the deviation from the behavior policy so as to…

机器学习 · 计算机科学 2021-10-13 Ilya Kostrikov , Ashvin Nair , Sergey Levine

In a recent study, Reinforcement Learning (RL) used in combination with many-objective search, has been shown to outperform alternative techniques (random search and many-objective search) for online testing of Deep Neural Network-enabled…

软件工程 · 计算机科学 2024-03-21 Luca Giamattei , Matteo Biagiola , Roberto Pietrantuono , Stefano Russo , Paolo Tonella

In this work we revisit the Mobility Robustness Optimisation (MRO) algorithm and study the possibility of learning the optimal Cell Individual Offset tuning using offline Reinforcement Learning. Such methods make use of collected offline…

网络与互联网体系结构 · 计算机科学 2025-07-01 Pegah Alizadeh , Anastasios Giovanidis , Pradeepa Ramachandra , Vasileios Koutsoukis , Osama Arouk

This paper presents a risk-aware safe reinforcement learning (RL) control design for stochastic discrete-time linear systems. Rather than using a safety certifier to myopically intervene with the RL controller, a risk-informed safe…

系统与控制 · 电气工程与系统科学 2025-05-16 Babak Esmaeili , Nariman Niknejad , Hamidreza Modares

Reinforcement learning (RL) has shown promise for decision-making tasks in real-world applications. One practical framework involves training parameterized policy models from an offline dataset and subsequently deploying them in an online…

机器学习 · 计算机科学 2023-03-14 Ziniu Li , Ke Xu , Liu Liu , Lanqing Li , Deheng Ye , Peilin Zhao

Offline Reinforcement Learning (RL), which operates solely on static datasets without further interactions with the environment, provides an appealing alternative to learning a safe and promising control policy. The prevailing methods…

机器学习 · 计算机科学 2025-03-18 Kun Wu , Yinuo Zhao , Zhiyuan Xu , Zhengping Che , Chengxiang Yin , Chi Harold Liu , Feiferi Feng , Jian Tang

Offline reinforcement learning (RL) aims to learn an effective policy from a static dataset. To alleviate extrapolation errors, existing studies often uniformly regularize the value function or policy updates across all states. However, due…

机器学习 · 计算机科学 2025-05-27 Qin-Wen Luo , Ming-Kun Xie , Ye-Wen Wang , Sheng-Jun Huang

Offline reinforcement learning (RL) defines the task of learning from a static logged dataset without continually interacting with the environment. The distribution shift between the learned policy and the behavior policy makes it necessary…

机器学习 · 计算机科学 2024-02-22 Jiafei Lyu , Xiaoteng Ma , Xiu Li , Zongqing Lu

In recommender systems (RecSys) and real-time bidding (RTB) for online advertisements, we often try to optimize sequential decision making using bandit and reinforcement learning (RL) techniques. In these applications, offline reinforcement…

机器学习 · 计算机科学 2021-09-20 Haruka Kiyohara , Kosuke Kawakami , Yuta Saito

The ability to discover optimal behaviour from fixed data sets has the potential to transfer the successes of reinforcement learning (RL) to domains where data collection is acutely problematic. In this offline setting, a key challenge is…

机器学习 · 计算机科学 2022-11-23 Alex Beeson , Giovanni Montana

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

Dental disease is one of the most common chronic diseases despite being largely preventable. However, professional advice on optimal oral hygiene practices is often forgotten or abandoned by patients. Therefore patients may benefit from…

人工智能 · 计算机科学 2022-09-15 Anna L. Trella , Kelly W. Zhang , Inbal Nahum-Shani , Vivek Shetty , Finale Doshi-Velez , Susan A. Murphy