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Micro-CT scanning of rocks significantly enhances our understanding of pore-scale physics in porous media. With advancements in pore-scale simulation methods, such as pore network models, it is now possible to accurately simulate multiphase…

图像与视频处理 · 电气工程与系统科学 2024-09-19 Zihan Ren , Sanjay Srinivasan

We introduce a generative adversarial network (GAN) model to simulate the 3-dimensional Lagrangian motion of particles trapped in the recirculation zone of a buoyancy-opposed flame. The GAN model comprises a stochastic recurrent neural…

机器学习 · 统计学 2019-01-15 Jingwei Gan , Pai Liu , Rajan K. Chakrabarty

Deep learning-based techniques have been introduced into the field of trajectory optimization in recent years. Deep Neural Networks (DNNs) are trained and used as the surrogates of conventional optimization process. They can provide low…

机器学习 · 计算机科学 2022-09-27 Ruida Xie , Andrew G. Dempster

Positron emission tomography (PET) is a widely used, highly sensitive molecular imaging in clinical diagnosis. There is interest in reducing the radiation exposure from PET but also maintaining adequate image quality. Recent methods using…

图像与视频处理 · 电气工程与系统科学 2024-10-28 Yuxin Xue , Lei Bi , Yige Peng , Michael Fulham , David Dagan Feng , Jinman Kim

The microstructure of material strongly influences its mechanical properties and the microstructure itself is influenced by the processing conditions. Thus, establishing a Process-Structure-Property relationship is a crucial task in…

材料科学 · 物理学 2021-07-21 Mohammad Safiuddin , CH Likith Reddy , Ganesh Vasantada , CHJNS Harsha , Srinu Gangolu

In this work, a new data-driven fiber channel modeling method, generative adversarial network (GAN) is investigated to learn the distribution of fiber channel transfer function. Our investigation focuses on joint channel effects of…

信息论 · 计算机科学 2022-01-19 Hang Yang , Zekun Niu , Shilin Xiao , Jiafei Fang , Zhiyang Liu , David Faninsin , Lilin Yi

We provide a bridge between generative modeling in the Machine Learning community and simulated physical processes in High Energy Particle Physics by applying a novel Generative Adversarial Network (GAN) architecture to the production of…

机器学习 · 统计学 2017-11-07 Luke de Oliveira , Michela Paganini , Benjamin Nachman

The paper proposes a data-driven approach to air-to-ground channel estimation in a millimeter-wave wireless network on an unmanned aerial vehicle. Unlike traditional centralized learning methods that are specific to certain geographical…

网络与互联网体系结构 · 计算机科学 2023-05-31 Saira Bano , Pietro Cassarà , Nicola Tonellotto , Alberto Gotta

Positron emission tomography (PET) is the most sensitive molecular imaging modality routinely applied in our modern healthcare. High radioactivity caused by the injected tracer dose is a major concern in PET imaging and limits its clinical…

图像与视频处理 · 电气工程与系统科学 2023-04-04 Yuxin Xue , Yige Peng , Lei Bi , Dagan Feng , Jinman Kim

One of the fundamental challenges for future leptonic colliders and neutrino factories as well as for high-sensitivity studies of lepton universality is to design and construct new high-intensity sources of muons and positrons. The…

高能物理 - 实验 · 物理学 2023-10-18 Armen Apyan , Mieczyslaw Witold Krasny , Wiesław Płaczek

Accurate modelling of spectra produced by X-ray sources requires the use of Monte-Carlo simulations. These simulations need to evaluate physical processes, such as those occurring in accretion processes around compact objects by sampling a…

高能天体物理现象 · 物理学 2024-02-21 Ahab Isaac , Wesley Armour , Karel Adámek

Generative adversarial networks (GANs) have shown promising results when applied on partial differential equations and financial time series generation. We investigate if GANs can also be used to approximate one-dimensional Ito stochastic…

机器学习 · 计算机科学 2021-04-06 Jorino van Rhijn , Cornelis W. Oosterlee , Lech A. Grzelak , Shuaiqiang Liu

Generating high-fidelity time series data using generative adversarial networks (GANs) remains a challenging task, as it is difficult to capture the temporal dependence of joint probability distributions induced by time-series data. Towards…

机器学习 · 计算机科学 2024-04-09 Hang Lou , Siran Li , Hao Ni

Dark matter in the universe evolves through gravity to form a complex network of halos, filaments, sheets and voids, that is known as the cosmic web. Computational models of the underlying physical processes, such as classical N-body…

Potential radioactive hazards in full-dose positron emission tomography (PET) imaging remain a concern, whereas the quality of low-dose images is never desirable for clinical use. So it is of great interest to translate low-dose PET images…

图像与视频处理 · 电气工程与系统科学 2023-06-06 Yang Zhou , Zhiwen Yang , Hui Zhang , Eric I-Chao Chang , Yubo Fan , Yan Xu

The generation of multiphase porous electrode microstructures is a critical step in the optimisation of electrochemical energy storage devices. This work implements a deep convolutional generative adversarial network (DC-GAN) for generating…

神经与进化计算 · 计算机科学 2020-05-06 Andrea Gayon-Lombardo , Lukas Mosser , Nigel P. Brandon , Samuel J. Cooper

We present a new machine learning-based Monte Carlo event generator using generative adversarial networks (GANs) that can be trained with calibrated detector simulations to construct a vertex-level event generator free of theoretical…

Positronium-based imaging requires realistic modelling of positronium (Ps) decay in matter. We introduce a modular Ps decay model implemented in GATE 9.4 and GATE 10, enabling the definition of an arbitrary number of decay channels…

Purpose: To compare the accuracy with which different hadronic inelastic physics models across ten Geant4 Monte Carlo simulation toolkit versions can predict positron-emitting fragments produced along the beam path during carbon and oxygen…

This paper proposes a novel approach for predicting the motion of pedestrians interacting with others. It uses a Generative Adversarial Network (GAN) to sample plausible predictions for any agent in the scene. As GANs are very susceptible…

计算机视觉与模式识别 · 计算机科学 2019-04-25 Javad Amirian , Jean-Bernard Hayet , Julien Pettre