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Rotating detonation engines (RDEs) are a promising propulsion concept that may offer higher thermodynamic efficiency and specific impulse than conventional systems, but nonlinear phenomena, including transitions to oscillatory or chaotic…

流体动力学 · 物理学 2026-04-17 Kristian Holme , Jean Rabault , Ricardo Vinuesa , Mikael Mortensen

Continuous neural representations have recently emerged as a powerful and flexible alternative to classical discretized representations of signals. However, training them to capture fine details in multi-scale signals is difficult and…

机器学习 · 计算机科学 2022-10-06 Sifan Wang , Hanwen Wang , Jacob H. Seidman , Paris Perdikaris

Reinforcement learning (RL) in Markov decision processes (MDPs) with large state spaces is a challenging problem. The performance of standard RL algorithms degrades drastically with the dimensionality of state space. However, in practice,…

人工智能 · 计算机科学 2018-06-21 Kamyar Azizzadenesheli , Alessandro Lazaric , Animashree Anandkumar

Meta-reinforcement learning (meta-RL) aims to learn from multiple training tasks the ability to adapt efficiently to unseen test tasks. Despite the success, existing meta-RL algorithms are known to be sensitive to the task distribution…

机器学习 · 计算机科学 2021-03-02 Zichuan Lin , Garrett Thomas , Guangwen Yang , Tengyu Ma

Control theory provides engineers with a multitude of tools to design controllers that manipulate the closed-loop behavior and stability of dynamical systems. These methods rely heavily on insights about the mathematical model governing the…

机器人学 · 计算机科学 2020-06-18 Simen Theie Havenstrøm , Adil Rasheed , Omer San

Deep reinforcement learning (DRL) has been proven to be a powerful paradigm for learning complex control policy autonomously. Numerous recent applications of DRL in robotic grasping have successfully trained DRL robotic agents end-to-end,…

机器人学 · 计算机科学 2020-07-03 Zhixin Chen , Mengxiang Lin , Zhixin Jia , Shibo Jian

We show that neural networks trained by evolutionary reinforcement learning can enact efficient molecular self-assembly protocols. Presented with molecular simulation trajectories, networks learn to change temperature and chemical potential…

统计力学 · 物理学 2020-06-01 Stephen Whitelam , Isaac Tamblyn

Purpose : Because functional MRI (fMRI) data sets are in general small, we sought a data efficient approach to resting state fMRI classification of autism spectrum disorder (ASD) versus neurotypical (NT) controls. We hypothesized that a…

神经元与认知 · 定量生物学 2022-06-23 Joseph Stember , Danielle Stember , Luca Pasquini , Jenabi Merhnaz , Andrei Holodny , Hrithwik Shalu

Traffic optimization challenges, such as load balancing, flow scheduling, and improving packet delivery time, are difficult online decision-making problems in wide area networks (WAN). Complex heuristics are needed for instance to find…

网络与互联网体系结构 · 计算机科学 2021-12-01 Shan Sun , Mariam Kiran , Wei Ren

In the field of legged robot motion control, reinforcement learning (RL) holds great promise but faces two major challenges: high computational cost for training individual robots and poor generalization of trained models. To address these…

机器人学 · 计算机科学 2025-04-09 Haodong Huang , Shilong Sun , Zida Zhao , Hailin Huang , Changqing Shen , Wenfu Xu

We present a new adaptive resolution technique for efficient particle-based multiscale molecular dynamics (MD) simulations. The presented approach is tailor-made for molecular systems where atomistic resolution is required only in spatially…

软凝聚态物质 · 物理学 2007-05-23 Matej Praprotnik , Luigi Delle Site , Kurt Kremer

This research gauges the ability of deep reinforcement learning (DRL) techniques to assist the control of conjugate heat transfer systems governed by the coupled Navier--Stokes and heat equations. It uses a novel, "degenerate" version of…

流体动力学 · 物理学 2021-03-25 Elie Hachem , Hassan Ghraieb , Jonathan Viquerat , Aurélien Larcher , Philippe Meliga

Understanding the performance of machine learning algorithms is essential for designing more accurate and efficient statistical models. It is not always possible to unravel the reasoning of neural networks. Here we propose a method for…

化学物理 · 物理学 2018-07-30 Mykhaylo Krykunov , Tom K. Woo

Recent advances in scanning transmission electron and scanning probe microscopies have opened exciting opportunities in probing the materials structural parameters and various functional properties in real space with angstrom-level…

Process optimization for metal additive manufacturing (AM) is crucial to ensure repeatability, control microstructure, and minimize defects. Despite efforts to address this via the traditional design of experiments and statistical process…

机器学习 · 计算机科学 2022-11-18 Susheel Dharmadhikari , Nandana Menon , Amrita Basak

In this paper, we propose a principled deep reinforcement learning (RL) approach that is able to accelerate the convergence rate of general deep neural networks (DNNs). With our approach, a deep RL agent (synonym for optimizer in this work)…

机器学习 · 计算机科学 2017-07-14 Jie Fu

Deep Reinforcement Learning (DRL) is a trending field of research, showing great promise in many challenging problems such as playing Atari, solving Go and controlling robots. While DRL agents perform well in practice we are still missing…

机器学习 · 统计学 2016-06-24 Nir Ben Zrihem , Tom Zahavy , Shie Mannor

In heterogeneous networks (HetNets), the overlap of small cells and the macro cell causes severe cross-tier interference. Although there exist some approaches to address this problem, they usually require global channel state information,…

系统与控制 · 电气工程与系统科学 2022-12-16 Kaidi Xu , Nguyen Van Huynh , Geoffrey Ye Li

This research explores the application of Deep Reinforcement Learning (DRL) to optimize the design of a nuclear fusion reactor. DRL can efficiently address the challenging issues attributed to multiple physics and engineering constraints…

等离子体物理 · 物理学 2024-09-13 Jinsu Kim , Jaemin Seo

We propose a novel algorithmic framework for distributional reinforcement learning, based on learning finite-dimensional mean embeddings of return distributions. We derive several new algorithms for dynamic programming and…