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Large language models (LLMs) have achieved strong performance in language-centric tasks. However, in agentic settings, LLMs often struggle to anticipate action consequences and adapt to environment dynamics, highlighting the need for…

Computation and Language · Computer Science 2026-02-10 Xiao Yu , Baolin Peng , Ruize Xu , Yelong Shen , Pengcheng He , Suman Nath , Nikhil Singh , Jiangfeng Gao , Zhou Yu

Model-based reinforcement learning (MBRL) is believed to have much higher sample efficiency compared to model-free algorithms by learning a predictive model of the environment. However, the performance of MBRL highly relies on the quality…

Machine Learning · Computer Science 2022-11-16 Xin-Yang Liu , Jian-Xun Wang

Model-based reinforcement learning (MBRL) allows solving complex tasks in a sample-efficient manner. However, no information is reused between the tasks. In this work, we propose a meta-learned addressing model called RAMa that provides…

Machine Learning · Computer Science 2021-10-27 Artem Zholus , Aleksandr I. Panov

Recent advances in large language models (LLMs) have sparked growing interest in building generalist agents that can learn through online interactions. However, applying reinforcement learning (RL) to train LLM agents in multi-turn,…

Artificial Intelligence · Computer Science 2025-10-07 Hanchen Zhang , Xiao Liu , Bowen Lv , Xueqiao Sun , Bohao Jing , Iat Long Iong , Zhenyu Hou , Zehan Qi , Hanyu Lai , Yifan Xu , Rui Lu , Hongning Wang , Jie Tang , Yuxiao Dong

While reinforcement learning (RL) has demonstrated remarkable success in enhancing large language models (LLMs), it has primarily focused on single-turn tasks such as solving math problems. Training effective web agents for multi-turn…

Computation and Language · Computer Science 2025-10-10 Zhepei Wei , Wenlin Yao , Yao Liu , Weizhi Zhang , Qin Lu , Liang Qiu , Changlong Yu , Puyang Xu , Chao Zhang , Bing Yin , Hyokun Yun , Lihong Li

A critical bottleneck in deep reinforcement learning (DRL) is sample inefficiency, as training high-performance agents often demands extensive environmental interactions. Model-based reinforcement learning (MBRL) mitigates this by building…

Machine Learning · Computer Science 2025-09-30 Boxuan Zhang , Runqing Wang , Wei Xiao , Weipu Zhang , Jian Sun , Gao Huang , Jie Chen , Gang Wang

By planning through a learned dynamics model, model-based reinforcement learning (MBRL) offers the prospect of good performance with little environment interaction. However, it is common in practice for the learned model to be inaccurate,…

Machine Learning · Computer Science 2021-03-31 Behzad Haghgoo , Allan Zhou , Archit Sharma , Chelsea Finn

Controlling artificial agents from visual sensory data is an arduous task. Reinforcement learning (RL) algorithms can succeed but require large amounts of interactions between the agent and the environment. To alleviate the issue,…

Artificial Intelligence · Computer Science 2023-05-26 Sai Rajeswar , Pietro Mazzaglia , Tim Verbelen , Alexandre Piché , Bart Dhoedt , Aaron Courville , Alexandre Lacoste

Recent studies have uncovered the potential of Large Language Models (LLMs) in addressing complex sequential decision-making tasks through the provision of high-level instructions. However, LLM-based agents lack specialization in tackling…

Artificial Intelligence · Computer Science 2024-05-28 Zihao Zhou , Bin Hu , Chenyang Zhao , Pu Zhang , Bin Liu

Large language models (LLMs) struggle in real-world clinical consultations. Single-turn consultation systems require patients to describe all symptoms at once, which often leads to unclear complaints and vague diagnoses. Traditional…

Computation and Language · Computer Science 2026-05-01 Yichun Feng , Jiawei Wang , Lu Zhou , Yikai Zheng , Zhen Lei , Yixue Li

Adaptive beam switching is essential for mission-critical military and commercial 6G networks but faces major challenges from high carrier frequencies, user mobility, and frequent blockages. While existing machine learning (ML) solutions…

Networking and Internet Architecture · Computer Science 2025-12-04 Seyed Bagher Hashemi Natanzi , Zhicong Zhu , Bo Tang

Deep reinforcement learning (DRL) has become a powerful tool for complex decision-making in machine learning and AI. However, traditional methods often assume perfect action execution, overlooking the uncertainties and deviations between an…

Robotics · Computer Science 2025-07-02 Oren Fivel , Matan Rudman , Kobi Cohen

Reinforcement Learning is an area of Machine Learning focused on how agents can be trained to make sequential decisions, and achieve a particular goal within an arbitrary environment. While learning, they repeatedly take actions based on…

Reinforcement learning (RL) agents improve through trial-and-error, but when reward is sparse and the agent cannot discover successful action sequences, learning stagnates. This has been a notable problem in training deep RL agents to…

Artificial Intelligence · Computer Science 2018-02-27 Evan Zheran Liu , Kelvin Guu , Panupong Pasupat , Tianlin Shi , Percy Liang

The emergence of large language model (LLM)-based agents has significantly advanced the development of autonomous machine learning (ML) engineering. However, the dominant prompt-based paradigm exhibits limitations: smaller models lack the…

Computation and Language · Computer Science 2026-05-04 Zexi Liu , Jingyi Chai , Xinyu Zhu , Shuo Tang , Rui Ye , Bo Zhang , Lei Bai , Siheng Chen

Reinforcement Learning (RL) enables an intelligent agent to optimise its performance in a task by continuously taking action from an observed state and receiving a feedback from the environment in form of rewards. RL typically uses tables…

Artificial Intelligence · Computer Science 2025-01-28 Alberto Castagna

Virtual character animation control is a problem for which Reinforcement Learning (RL) is a viable approach. While current work have applied RL effectively to portray physics-based skills, social behaviours are challenging to design reward…

Machine Learning · Computer Science 2021-04-14 Vihanga Gamage , Cathy Ennis , Robert Ross

Many real-world applications can be formulated as multi-agent cooperation problems, such as network packet routing and coordination of autonomous vehicles. The emergence of deep reinforcement learning (DRL) provides a promising approach for…

Multiagent Systems · Computer Science 2022-06-28 Zhixuan Liang , Jiannong Cao , Shan Jiang , Divya Saxena , Huafeng Xu

Language model (LM) agents have gained significant attention for their ability to autonomously complete tasks through interactions with environments, tools, and APIs. LM agents are primarily built with prompt engineering or supervised…

Artificial Intelligence · Computer Science 2025-07-22 Renxi Wang , Rifo Ahmad Genadi , Bilal El Bouardi , Yongxin Wang , Fajri Koto , Zhengzhong Liu , Timothy Baldwin , Haonan Li

Deep Reinforcement Learning (DRL) has recently witnessed significant advances that have led to multiple successes in solving sequential decision-making problems in various domains, particularly in wireless communications. The future…

Machine Learning · Computer Science 2020-11-10 Amal Feriani , Ekram Hossain