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We describe an Artificial Neural Network (ANN) approach to classification of galaxy images and spectra. ANNs can replicate the classification of galaxy images by a human expert to the same degree of agreement as that between two human…

天体物理学 · 物理学 2007-05-23 Ofer Lahav

Due to the ever-expanding volume of observed spectroscopic data from surveys such as SDSS and LAMOST, it has become important to apply artificial intelligence (AI) techniques for analysing stellar spectra to solve spectral classification…

太阳与恒星天体物理 · 物理学 2020-01-08 Kaushal Sharma , Ajit Kembhavi , Aniruddha Kembhavi , T. Sivarani , Sheelu Abraham , Kaustubh Vaghmare

Generative Adversarial Networks (GANs) can synthesize abundant photo-realistic synthetic aperture radar (SAR) images. Some recent GANs (e.g., InfoGAN), are even able to edit specific properties of the synthesized images by introducing…

计算机视觉与模式识别 · 计算机科学 2022-05-27 Zhenpeng Feng , Milos Dakovic , Hongbing Ji , Mingzhe Zhu , Ljubisa Stankovic

Generative adversarial networks (GANs) have proven to be surprisingly efficient for image editing by inverting and manipulating the latent code corresponding to an input real image. This editing property emerges from the disentangled nature…

计算机视觉与模式识别 · 计算机科学 2022-07-01 Mustafa Shukor , Xu Yao , Bharath Bushan Damodaran , Pierre Hellier

Generative Adversarial Networks (GANs) are Machine Learning (ML) algorithms that have the ability to address competitive resource allocation problems together with detection and mitigation of anomalous behavior. In this paper, we…

机器学习 · 计算机科学 2025-05-15 Ender Ayanoglu , Kemal Davaslioglu , Yalin E. Sagduyu

Generative adversarial networks (GANs)successfully generate high quality data by learning amapping from a latent vector to the data. Various studies assert that the latent space of a GAN is semanticallymeaningful and can be utilized for…

计算机视觉与模式识别 · 计算机科学 2020-03-06 Duhyeon Bang , Seoungyoon Kang , Hyunjung Shim

Synthetic medical image generation has a huge potential for improving healthcare through many applications, from data augmentation for training machine learning systems to preserving patient privacy. Conditional Adversarial Generative…

图像与视频处理 · 电气工程与系统科学 2022-05-05 Mohammad Havaei , Ximeng Mao , Yiping Wang , Qicheng Lao

Recent advances in Generative Adversarial Learning allow for new modalities of image super-resolution by learning low to high resolution mappings. In this paper we present our work using Generative Adversarial Networks (GANs) with…

计算机视觉与模式识别 · 计算机科学 2017-11-29 Marc Bosch , Christopher M. Gifford , Pedro A. Rodriguez

Auto-encoding generative adversarial networks (GANs) combine the standard GAN algorithm, which discriminates between real and model-generated data, with a reconstruction loss given by an auto-encoder. Such models aim to prevent mode…

机器学习 · 统计学 2017-10-24 Mihaela Rosca , Balaji Lakshminarayanan , David Warde-Farley , Shakir Mohamed

Disentanglement, a critical concern in interpretable machine learning, has also garnered significant attention from the computer vision community. Many existing GAN-based class disentanglement (unsupervised) approaches, such as InfoGAN and…

计算机视觉与模式识别 · 计算机科学 2024-06-03 Jiangwei Zhao , Zejia Liu , Xiaohan Guo , Lili Pan

Deep neural networks are commonly used for medical purposes such as image generation, segmentation, or classification. Besides this, they are often criticized as black boxes as their decision process is often not human interpretable.…

机器学习 · 计算机科学 2022-03-22 Jana Fragemann , Lynton Ardizzone , Jan Egger , Jens Kleesiek

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

To this day, accurately simulating local-scale precipitation and reliably reproducing its distribution remains a challenging task. The limited horizontal resolution of Global Climate Models is among the primary factors undermining their…

大气与海洋物理 · 物理学 2025-03-18 Marcello Iotti , Paolo Davini , Jost von Hardenberg , Giuseppe Zappa

The impressive success of style-based GANs (StyleGANs) in high-fidelity image synthesis has motivated research to understand the semantic properties of their latent spaces. In this paper, we approach this problem through a geometric…

计算机视觉与模式识别 · 计算机科学 2023-04-27 Jaewoong Choi , Geonho Hwang , Hyunsoo Cho , Myungjoo Kang

In this study, the fundamental stellar atmospheric parameters (Teff, log g, [Fe/H] and [{\alpha}/Fe]) were derived for low-resolution spectroscopy from LAMOST DR5 with Generative Spectrum Networks (GSN). This follows the same scheme as a…

天体物理仪器与方法 · 物理学 2019-01-23 Wang Rui , Luo A-li , Zhang Shuo , Hou Wen , Du Bing , Song Yi-Han , Wu Ke-Fei , Chen Jian-Jun , Zuo Fang , Qin Li , Chen Xiang-Lei , Lu Yan

Artificial neural networks (ANN) have different applications in Astronomy, including data reduction and data mining. In this work we propose the use ANNs in the identification of stellar model solutions. We illustrate this method, by…

太阳与恒星天体物理 · 物理学 2015-06-04 F. J. G. Pinheiro , T. Simas , J. Fernandes , R. Ribeiro

Generative Adversarial Networks (GANs) have shown impressive results in various image synthesis tasks. Vast studies have demonstrated that GANs are more powerful in feature and expression learning compared to other generative models and…

计算机视觉与模式识别 · 计算机科学 2025-04-09 Omar De Mitri , Ruyu Wang , Marco F. Huber

Generative adversarial networks (GANs) are well known for their unsupervised learning capabilities. A recent success in the field of astronomy is deblending two overlapping galaxy images via a branched GAN model. However, it remains a…

计算机视觉与模式识别 · 计算机科学 2020-01-20 Heyi Li , Yuewei Lin , Klaus Mueller , Wei Xu

In everyday life, photographs taken with a camera often suffer from motion blur due to hand vibrations or sudden movements. This phenomenon can significantly detract from the quality of the images captured, making it an interesting…

计算机视觉与模式识别 · 计算机科学 2024-12-30 Zhengdong Li

Using the technique of spectral disentangling, it is possible to determine the individual spectra of the components of a multiple star system from composite spectra observed at a range of orbital phases. This method has several advantages:…

太阳与恒星天体物理 · 物理学 2015-05-20 E. Tamajo , K. Pavlovski , J. Southworth