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相关论文: Cosmic Voids in GAN-Generated Maps of Large-Scale …

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The massive exploitation of cosmic voids for precision cosmology in the upcoming dark energy experiments, requires a robust understanding of their internal structure, particularly of their density profile. We show that the void density…

宇宙学与河外天体物理 · 物理学 2015-06-18 E. Ricciardelli , V. Quilis , J. Varela

Generative Adversarial Networks (GANs) are very popular frameworks for generating high-quality data, and are immensely used in both the academia and industry in many domains. Arguably, their most substantial impact has been in the area of…

计算机视觉与模式识别 · 计算机科学 2022-03-02 Gilad Cohen , Raja Giryes

Generative adversarial networks (GANs) have been extensively studied in the past few years. Arguably their most significant impact has been in the area of computer vision where great advances have been made in challenges such as plausible…

机器学习 · 计算机科学 2021-01-01 Zhengwei Wang , Qi She , Tomas E. Ward

We study how the properties of cosmic voids depend on those of the tracer galaxy populations in which they are identified. We use a suite of halo occupation distribution (HOD) mocks in a simulation, identify voids in these populations using…

宇宙学与河外天体物理 · 物理学 2015-10-07 Seshadri Nadathur , Shaun Hotchkiss

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

We study the formation and evolution of voids in the dark matter distribution using various simulations of the popular $\Lambda$ Cold Dark Matter cosmogony. We identify voids by requiring them to be regions of space with a mean overdensity…

天体物理学 · 物理学 2009-11-10 Joerg M. Colberg , Ravi K. Sheth , Antonaldo Diaferio , Liang Gao , Naoki Yoshida

In this paper, we propose a novel application of Generative Adversarial Networks (GAN) to the synthesis of cells imaged by fluorescence microscopy. Compared to natural images, cells tend to have a simpler and more geometric global structure…

计算机视觉与模式识别 · 计算机科学 2017-09-13 Anton Osokin , Anatole Chessel , Rafael E. Carazo Salas , Federico Vaggi

Deep generative models learned through adversarial training have become increasingly popular for their ability to generate naturalistic image textures. However, aside from their texture, the visual appearance of objects is significantly…

计算机视觉与模式识别 · 计算机科学 2018-03-29 Jean Kossaifi , Linh Tran , Yannis Panagakis , Maja Pantic

Cosmic voids may have novel affects on the propagation of high-energy photons. We consider the fraction of the line of sight that intersect voids (termed \enquote{voidiness}). A previous study showed that active galactic nuclei (AGN)…

高能天体物理现象 · 物理学 2026-04-27 Ollie Jackson , Amy Furniss , Olivier Hervet , Megan Splettstoesser , David A. Williams

We present a study of spectral properties of galaxies in underdense large-scale structures, voids. Our void galaxy sample (75,939 galaxies) is selected from the Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7) with $\rm z < 0.107$. We…

星系天体物理 · 物理学 2015-09-23 Chenxu Liu , Danny Pan , Lei Hao , Fiona Hoyle , Anca Constantin , Micheal S. Vogeley

One of the biggest challenges in the research of generative adversarial networks (GANs) is assessing the quality of generated samples and detecting various levels of mode collapse. In this work, we construct a novel measure of performance…

机器学习 · 计算机科学 2018-06-12 Valentin Khrulkov , Ivan Oseledets

Generative Adversarial Networks (GANs) have obtained extraordinary success in the generation of realistic images, a domain where a lower pixel-level accuracy is acceptable. We study the problem, not yet tackled in the literature, of…

计算机视觉与模式识别 · 计算机科学 2019-07-01 Emanuele Ghelfi , Paolo Galeone , Michele De Simoni , Federico Di Mattia

Generative adversarial networks (GANs) have demonstrated to be successful at generating realistic real-world images. In this paper we compare various GAN techniques, both supervised and unsupervised. The effects on training stability of…

机器学习 · 计算机科学 2018-03-28 Mathijs Pieters , Marco Wiering

In the past several decades, many attempts have been made to model synthetic realistic geometric data. The goal of such models is to generate plausible 3D geometries and textures. Perhaps the best known of its kind is the linear 3D…

计算几何 · 计算机科学 2018-08-28 Ron Slossberg , Gil Shamai , Ron Kimmel

In recent years, Generative Adversarial Networks (GANs) have shown substantial progress in modeling complex distributions of data. These networks have received tremendous attention since they can generate implicit probabilistic models that…

信号处理 · 电气工程与系统科学 2018-10-25 Mehdi Ahmadi , Timothy Nest , Mostafa Abdelnaim , Thanh-Dung Le

A promise of Generative Adversarial Networks (GANs) is to provide cheap photorealistic data for training and validating AI models in autonomous driving. Despite their huge success, their performance on complex images featuring multiple…

计算机视觉与模式识别 · 计算机科学 2023-05-17 George Eskandar , Youssef Farag , Tarun Yenamandra , Daniel Cremers , Karim Guirguis , Bin Yang

Cosmic voids are underdense regions within the large-scale structure of the Universe, spanning a wide range of physical scales - from a few megaparsecs (Mpc) to the largest observable structures. Their distinctive properties make them…

Generative Adversarial Networks (GANs) produce high-quality images but are challenging to train. They need careful regularization, vast amounts of compute, and expensive hyper-parameter sweeps. We make significant headway on these issues by…

计算机视觉与模式识别 · 计算机科学 2021-11-02 Axel Sauer , Kashyap Chitta , Jens Müller , Andreas Geiger

Generative adversarial networks (GANs) are a class of unsupervised machine learning algorithms that can produce realistic images from randomly-sampled vectors in a multi-dimensional space. Until recently, it was not possible to generate…

计算机视觉与模式识别 · 计算机科学 2018-05-10 Andrew Beers , James Brown , Ken Chang , J. Peter Campbell , Susan Ostmo , Michael F. Chiang , Jayashree Kalpathy-Cramer

Recently, Generative Adversarial Networks (GANs) trained on samples of traditionally simulated collider events have been proposed as a way of generating larger simulated datasets at a reduced computational cost. In this paper we point out…

高能物理 - 唯象学 · 物理学 2022-03-30 Konstantin T. Matchev , Alexander Roman , Prasanth Shyamsundar