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Reinforcement learning agents learn by encouraging behaviours which maximize their total reward, usually provided by the environment. In many environments, however, the reward is provided after a series of actions rather than each single…

Artificial Intelligence · Computer Science 2022-01-04 Mohammad Reza Bonyadi , Rui Wang , Maryam Ziaei

This paper develops a reinforcement learning (RL)approach to solve a cooperative, multi-agent Volt-Var Control (VVC) problem for high solar penetration distribution systems. The ingenuity of our RL method lies in a novel two-stage…

Systems and Control · Electrical Eng. & Systems 2021-11-24 Si Zhang , Mingzhi Zhang , Rongxing Hu , David Lubkeman , Yunan Liu , Ning Lu

We present a decentralized reinforcement learning (RL) approach to address the multi-agent shepherding control problem, departing from the conventional assumption of cohesive target groups. Our two-layer control architecture consists of a…

Systems and Control · Electrical Eng. & Systems 2026-01-29 Italo Napolitano , Andrea Lama , Francesco De Lellis , Mario di Bernardo

The emerging field of Reinforcement Learning (RL) has led to impressive results in varied domains like strategy games, robotics, etc. This handout aims to give a simple introduction to RL from control perspective and discuss three possible…

Machine Learning · Computer Science 2021-03-09 Farnaz Adib Yaghmaie , Lennart Ljung

In this work we describe a novel deep reinforcement learning architecture that allows multiple actions to be selected at every time-step in an efficient manner. Multi-action policies allow complex behaviours to be learnt that would…

Artificial Intelligence · Computer Science 2018-09-07 Jack Harmer , Linus Gisslén , Jorge del Val , Henrik Holst , Joakim Bergdahl , Tom Olsson , Kristoffer Sjöö , Magnus Nordin

Reinforcement learning (RL) is not yet competitive for many cyber-physical systems, such as robotics, process automation, and power systems, as training on a system with physical components cannot be accelerated, and simulation models do…

Machine Learning · Computer Science 2024-11-01 Philipp Gassert , Matthias Althoff

Deep reinforcement learning has learned to play many games well, but failed on others. To better characterize the modes and reasons of failure of deep reinforcement learners, we test the widely used Asynchronous Actor-Critic (A2C) algorithm…

Machine Learning · Computer Science 2019-08-14 Philip Bontrager , Ahmed Khalifa , Damien Anderson , Matthew Stephenson , Christoph Salge , Julian Togelius

Learning to rank (LTR) plays a crucial role in various Information Retrieval (IR) tasks. Although supervised LTR methods based on fine-grained relevance labels (e.g., document-level annotations) have achieved significant success, their…

Information Retrieval · Computer Science 2025-08-21 Yiteng Tu , Zhichao Xu , Tao Yang , Weihang Su , Yujia Zhou , Yiqun Liu , Fen Lin , Qin Liu , Qingyao Ai

In games like chess, strategy evolves dramatically across distinct phases - the opening, middlegame, and endgame each demand different forms of reasoning and decision-making. Yet, many modern chess engines rely on a single neural network to…

Machine Learning · Computer Science 2025-06-18 Felix Helfenstein , Johannes Czech , Jannis Blüml , Max Eisel , Kristian Kersting

In strategy games, one of the most important aspects of game design is maintaining a sense of challenge for players. Many mobile titles feature quick gameplay loops that allow players to progress steadily, requiring an abundance of levels…

Machine Learning · Computer Science 2024-06-13 Joakim Bergdahl , Alessandro Sestini , Linus Gisslén

This paper introduces a novel framework for modeling interacting humans in a multi-stage game. This "iterated semi network-form game" framework has the following desirable characteristics: (1) Bounded rational players, (2) strategic players…

Multiagent Systems · Computer Science 2012-07-05 Ritchie Lee , David H. Wolpert , James Bono , Scott Backhaus , Russell Bent , Brendan Tracey

Reinforcement Learning (RL) agents often struggle with efficiency and performance in complex environments. We propose a novel framework that uses a Large Language Model (LLM) to dynamically generate a curriculum over available actions,…

Machine Learning · Computer Science 2026-04-03 Amirreza Alasti , Efe Erdal , Yücel Celik , Theresa Eimer

Deep reinforcement learning has demonstrated superhuman performance in complex decision-making tasks, but it struggles with generalization and knowledge reuse - key aspects of true intelligence. This article introduces a novel approach that…

Machine Learning · Computer Science 2024-11-12 Marko Ruman , Tatiana V. Guy

Reinforcement learning (RL) is a flexible and efficient method for programming micro-robots in complex environments. Here we investigate whether reinforcement learning can provide insights into biological systems when trained to perform…

Biological Physics · Physics 2024-04-03 Samuel Tovey , Christoph Lohrmann , Christian Holm

Combining reinforcement learning (RL) and molecular dynamics (MD) simulations, we propose a machine-learning approach (RL$^\ddag$) to automatically unravel chemical reaction mechanisms. In RL$^\ddag$, locating the transition state of a…

Chemical Physics · Physics 2021-03-19 Jun Zhang , Yao-Kun Lei , Zhen Zhang , Xu Han , Maodong Li , Lijiang Yang , Yi Isaac Yang , Yi Qin Gao

While Large Language Models (LLMs) excel in certain reasoning tasks, they struggle in multi-agent games where the final outcome depends on the joint strategies of all agents. In multi-agent games, the non-stationarity of other agents brings…

Artificial Intelligence · Computer Science 2026-05-26 Yidong He , Yutao Lai , Pengxu Yang , Jiarui Gan , Jiexin Wang , Yi Cai , Mengchen Zhao

Deep Reinforcement Learning (DRL) has shown its promising capabilities to learn optimal policies directly from trial and error. However, learning can be hindered if the goal of the learning, defined by the reward function, is "not optimal".…

Artificial Intelligence · Computer Science 2019-10-09 Yizheng Zhang , Andre Rosendo

Deep Reinforcement Learning (DRL) algorithms are known to be data inefficient. One reason is that a DRL agent learns both the feature and the policy tabula rasa. Integrating prior knowledge into DRL algorithms is one way to improve learning…

Machine Learning · Computer Science 2019-04-05 Gabriel V. de la Cruz , Yunshu Du , Matthew E. Taylor

Deep learning has enabled traditional reinforcement learning methods to deal with high-dimensional problems. However, one of the disadvantages of deep reinforcement learning methods is the limited exploration capacity of learning agents. In…

Machine Learning · Computer Science 2019-07-30 Thanh Nguyen , Ngoc Duy Nguyen , Saeid Nahavandi

StarCraft II is a complex and dynamic real-time strategy (RTS) game environment, which is very suitable for artificial intelligence and reinforcement learning research. To address the problem of Large Language Model(LLM) learning in complex…

Artificial Intelligence · Computer Science 2026-04-13 Xiaojie Xu , Zongyuan Li , Chang Lu , Runnan Qi , Yanan Ni , Lumin Jiang , Xiangbei Liu , Xuebo Zhang , Yongchun Fang , Kuihua Huang , Xian Guo , Zhanghua Wu , Zhenya Li