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相关论文: Emulating cosmological multifields with generative…

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We demonstrate the use of deep network to learn the distribution of data from state-of-the-art hydrodynamic simulations of the CAMELS project. To this end, we train a generative adversarial network to generate images composed of three…

宇宙学与河外天体物理 · 物理学 2024-10-25 Sambatra Andrianomena , Sultan Hassan , Francisco Villaescusa-Navarro

We investigate the possibility of learning the representations of cosmological multifield dataset from the CAMELS project. We train a very deep variational encoder on images which comprise three channels, namely gas density (Mgas), neutral…

宇宙学与河外天体物理 · 物理学 2023-11-03 Sambatra Andrianomena , Sultan Hassan

Inferring model parameters from experimental data is a grand challenge in many sciences, including cosmology. This often relies critically on high fidelity numerical simulations, which are prohibitively computationally expensive. The…

天体物理仪器与方法 · 物理学 2019-05-23 Mustafa Mustafa , Deborah Bard , Wahid Bhimji , Zarija Lukić , Rami Al-Rfou , Jan M. Kratochvil

Generative Adversarial Networks (GANs) are a class of artificial neural network that can produce realistic, but artificial, images that resemble those in a training set. In typical GAN architectures these images are small, but a variant…

天体物理仪器与方法 · 物理学 2019-11-06 Michael J. Smith , James E. Geach

Weak gravitational lensing mass maps play a crucial role in understanding the evolution of structures in the universe and our ability to constrain cosmological models. The prediction of these mass maps is based on expensive N-body…

宇宙学与河外天体物理 · 物理学 2021-05-07 Nathanaël Perraudin , Sandro Marcon , Aurelien Lucchi , Tomasz Kacprzak

In this work we demonstrate that generative adversarial networks (GANs) can be used to generate realistic pervasive changes in remote sensing imagery, even in an unpaired training setting. We investigate some transformation quality metrics…

图像与视频处理 · 电气工程与系统科学 2020-05-19 Christopher X. Ren , Amanda Ziemann , James Theiler , Alice M. S. Durieux

Fast and accurate simulations of the non-linear evolution of the cosmic density field are a major component of many cosmological analyses, but the computational time and storage required to run them can be exceedingly large. For this…

宇宙学与河外天体物理 · 物理学 2020-11-17 Richard M. Feder , Philippe Berger , George Stein

Recently a type of neural networks called Generative Adversarial Networks (GANs) has been proposed as a solution for fast generation of simulation-like datasets, in an attempt to bypass heavy computations and expensive cosmological…

宇宙学与河外天体物理 · 物理学 2021-07-21 Marion Ullmo , Aurélien Decelle , Nabila Aghanim

In medical imaging, image synthesis is the estimation process of one image (sequence, modality) from another image (sequence, modality). Since images with different modalities provide diverse biomarkers and capture various features,…

图像与视频处理 · 电气工程与系统科学 2023-05-26 Firoozeh Shomal Zadeh , Sevda Molani , Maysam Orouskhani , Marziyeh Rezaei , Mehrzad Shafiei , Hossein Abbasi

Generative adversarial networks (GANs) have been recently applied as a novel emulation technique for large scale structure simulations. Recent results show that GANs can be used as a fast, efficient and computationally cheap emulator for…

宇宙学与河外天体物理 · 物理学 2021-07-06 Andrius Tamosiunas , Hans A. Winther , Kazuya Koyama , David J. Bacon , Robert C. Nichol , Ben Mawdsley

Image generation remains a fundamental problem in artificial intelligence in general and deep learning in specific. The generative adversarial network (GAN) was successful in generating high quality samples of natural images. We propose a…

人工智能 · 计算机科学 2016-11-15 Hanock Kwak , Byoung-Tak Zhang

Generative adversarial networks (GANs) are unsupervised Deep Learning approach in the computer vision community which has gained significant attention from the last few years in identifying the internal structure of multimodal medical…

图像与视频处理 · 电气工程与系统科学 2020-05-22 Nripendra Kumar Singh , Khalid Raza

Generating images via the generative adversarial network (GAN) has attracted much attention recently. However, most of the existing GAN-based methods can only produce low-resolution images of limited quality. Directly generating…

计算机视觉与模式识别 · 计算机科学 2019-04-01 Yong Guo , Qi Chen , Jian Chen , Qingyao Wu , Qinfeng Shi , Mingkui Tan

The simulation of geological facies in an unobservable volume is essential in various geoscience applications. Given the complexity of the problem, deep generative learning is a promising approach to overcome the limitations of traditional…

地球物理 · 物理学 2024-03-05 Ferdinand Bhavsar , Nicolas Desassis , Fabien Ors , Thomas Romary

Recently, generative adversarial networks (GANs) have shown promising performance in generating realistic images. However, they often struggle in learning complex underlying modalities in a given dataset, resulting in poor-quality generated…

计算机视觉与模式识别 · 计算机科学 2018-05-09 David Keetae Park , Seungjoo Yoo , Hyojin Bahng , Jaegul Choo , Noseong Park

Astronomy of the 21st century increasingly finds itself with extreme quantities of data. This growth in data is ripe for modern technologies such as deep image processing, which has the potential to allow astronomers to automatically…

天体物理仪器与方法 · 物理学 2019-03-19 Levi Fussell , Ben Moews

Astrophysical processes such as feedback from supernovae and active galactic nuclei modify the properties and spatial distribution of dark matter, gas, and galaxies in a poorly understood way. This uncertainty is one of the main theoretical…

Modern image generative models show remarkable sample quality when trained on a single domain or class of objects. In this work, we introduce a generative adversarial network that can simultaneously generate aligned image samples from…

计算机视觉与模式识别 · 计算机科学 2022-06-08 Seung Wook Kim , Karsten Kreis , Daiqing Li , Antonio Torralba , Sanja Fidler

Deep learning has a great potential to alleviate diagnosis and prognosis for various clinical procedures. However, the lack of a sufficient number of medical images is the most common obstacle in conducting image-based analysis using deep…

图像与视频处理 · 电气工程与系统科学 2022-05-23 Marija Habijan , Irena Galic

In this paper, we demonstrated a practical application of realistic river image generation using deep learning. Specifically, we explored a generative adversarial network (GAN) model capable of generating high-resolution and realistic river…

计算机视觉与模式识别 · 计算机科学 2021-07-29 Akshat Gautam , Muhammed Sit , Ibrahim Demir
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