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In order to alleviate the notorious mode collapse phenomenon in generative adversarial networks (GANs), we propose a novel training method of GANs in which certain fake samples are considered as real ones during the training process. This…

机器学习 · 计算机科学 2020-03-17 Song Tao , Jia Wang

Numerical simulation plays an important role in the study of structure formation of the universe. However, the mass resolution in current simulations is still poor. Due to technical difficulties, it is necessary to use both greatly reduced…

天体物理学 · 物理学 2009-11-10 Weike Xiao , Zhengfan Sun , Heng Hao

It is known that the inconsistent distribution and representation of different modalities, such as image and text, cause the heterogeneity gap that makes it challenging to correlate such heterogeneous data. Generative adversarial networks…

多媒体 · 计算机科学 2018-04-27 Yuxin Peng , Jinwei Qi , Yuxin Yuan

In this paper, we propose CKGAN, a novel generative adversarial network (GAN) variant based on an integral probability metrics framework with characteristic kernel (CKIPM). CKIPM, as a distance between two probability distributions, is…

机器学习 · 计算机科学 2025-04-09 Kuntian Zhang , Simin Yu , Yaoshu Wang , Makoto Onizuka , Chuan Xiao

Herein, we present a deep-learning technique for reconstructing the dark-matter density field from the redshift-space distribution of dark-matter halos. We built a UNet-architecture neural network and trained it using the COmoving…

宇宙学与河外天体物理 · 物理学 2023-12-21 Zitong Wang , Feng Shi , Xiaohu Yang , Qingyang Li , Yanming Liu , Xiaoping Li

Cosmological simulations play an important role in the interpretation of astronomical data, in particular in comparing observed data to our theoretical expectations. However, to compare data with these simulations, the simulations in…

Machine learning-based data-driven modeling can allow computationally efficient time-dependent solutions of PDEs, such as those that describe subsurface multiphysical problems. In this work, our previous approach of conditional generative…

计算工程、金融与科学 · 计算机科学 2022-08-31 T. Kadeethum , D. O'Malley , Y. Choi , H. S. Viswanathan , N. Bouklas , H. Yoon

In islanded systems with droop-controlled sources, the droop coefficients need to be tuned in real-time using supervisory control to maintain asymptotic stability. In contrast to offline tuning methods, online domain-of-stability estimation…

系统与控制 · 电气工程与系统科学 2024-12-20 Xilei Cao , Gurupraanesh Raman , Gururaghav Raman , Jimmy Chih-Hsien Peng

Unsupervised domain mapping has attracted substantial attention in recent years due to the success of models based on the cycle-consistency assumption. These models map between two domains by fooling a probabilistic discriminator, thereby…

机器学习 · 计算机科学 2019-01-25 Matthew Amodio , Smita Krishnaswamy

We present the first generative adversarial network (GAN) for natural image matting. Our novel generator network is trained to predict visually appealing alphas with the addition of the adversarial loss from the discriminator that is…

计算机视觉与模式识别 · 计算机科学 2018-07-27 Sebastian Lutz , Konstantinos Amplianitis , Aljosa Smolic

Weak gravitational lensing is a powerful probe of the large-scale cosmic matter distribution. Wide-field galaxy surveys allow us to generate the so-called weak lensing maps, but actual observations suffer from noise due to imperfect…

宇宙学与河外天体物理 · 物理学 2019-08-21 Masato Shirasaki , Naoki Yoshida , Shiro Ikeda

In biomedical image analysis, the applicability of deep learning methods is directly impacted by the quantity of image data available. This is due to deep learning models requiring large image datasets to provide high-level performance.…

机器学习 · 计算机科学 2023-08-14 Muhammad Muneeb Saad , Ruairi O'Reilly , Mubashir Husain Rehmani

Using cosmological dark matter only simulations of a $(1.6$ Gpc$/h)^3$ volume from the Legacy simulation project, we calculate Cosmic Mach Numbers (CMN) and perform a theoretical investigation of their relation with halo properties and…

宇宙学与河外天体物理 · 物理学 2022-03-09 Romain Meriot , Sadegh Khochfar , Jose Onorbe , Britton Smith

Generative Adversarial Networks (GANs) have emerged as a significant player in generative modeling by mapping lower-dimensional random noise to higher-dimensional spaces. These networks have been used to generate high-resolution images and…

计算机视觉与模式识别 · 计算机科学 2023-04-11 Satya Pratheek Tata , Subhankar Mishra

One of the most significant challenges in statistical signal processing and machine learning is how to obtain a generative model that can produce samples of large-scale data distribution, such as images and speeches. Generative Adversarial…

计算机视觉与模式识别 · 计算机科学 2020-05-28 Pegah Salehi , Abdolah Chalechale , Maryam Taghizadeh

The ability of the Generative Adversarial Networks (GANs) framework to learn generative models mapping from simple latent distributions to arbitrarily complex data distributions has been demonstrated empirically, with compelling results…

机器学习 · 计算机科学 2017-04-05 Jeff Donahue , Philipp Krähenbühl , Trevor Darrell

Integrated sensing and communication (ISAC) technology has been explored as a potential advancement for future wireless networks, striving to effectively use spectral resources for both communication and sensing. The integration of…

信号处理 · 电气工程与系统科学 2025-02-25 Alice Faisal , Ibrahim Al-Nahhal , Kyesan Lee , Octavia A. Dobre , Hyundong Shin

Conditional generative adversarial networks (cGANs) have been widely researched to generate class conditional images using a single generator. However, in the conventional cGANs techniques, it is still challenging for the generator to learn…

计算机视觉与模式识别 · 计算机科学 2020-04-09 Min-Cheol Sagong , Yong-Goo Shin , Yoon-Jae Yeo , Seung Park , Sung-Jea Ko

In recent years, research on image generation methods has been developing fast. The auto-encoding variational Bayes method (VAEs) was proposed in 2013, which uses variational inference to learn a latent space from the image database and…

计算机视觉与模式识别 · 计算机科学 2018-07-12 Guoqiang Zhong , Wei Gao , Yongbin Liu , Youzhao Yang

Deep neural networks have been shown to perform well in many classical machine learning problems, especially in image classification tasks. However, researchers have found that neural networks can be easily fooled, and they are surprisingly…

计算机视觉与模式识别 · 计算机科学 2019-05-24 Huaxia Wang , Chun-Nam Yu