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Precipitation results from complex processes across many scales, making its accurate simulation in Earth system models (ESMs) challenging. Existing post-processing methods can improve ESM simulations locally, but cannot correct errors in…

大气与海洋物理 · 物理学 2025-01-03 Philipp Hess , Markus Drüke , Stefan Petri , Felix M. Strnad , Niklas Boers

Many existing conditional Generative Adversarial Networks (cGANs) are limited to conditioning on pre-defined and fixed class-level semantic labels or attributes. We propose an open set GAN architecture (OpenGAN) that is conditioned…

计算机视觉与模式识别 · 计算机科学 2020-03-19 Luke Ditria , Benjamin J. Meyer , Tom Drummond

Generative adversarial networks (GANs) are popular for generative tasks; however, they often require careful architecture selection, extensive empirical tuning, and are prone to mode collapse. To overcome these challenges, we propose a…

机器学习 · 计算机科学 2024-07-08 Wonjun Lee , Yifei Yang , Dongmian Zou , Gilad Lerman

Despite remarkable recent progress on both unconditional and conditional image synthesis, it remains a long-standing problem to learn generative models that are capable of synthesizing realistic and sharp images from reconfigurable spatial…

计算机视觉与模式识别 · 计算机科学 2019-08-21 Wei Sun , Tianfu Wu

Generative adversarial networks (GANs) synthesize realistic images from random latent vectors. Although manipulating the latent vectors controls the synthesized outputs, editing real images with GANs suffers from i) time-consuming…

计算机视觉与模式识别 · 计算机科学 2021-06-24 Hyunsu Kim , Yunjey Choi , Junho Kim , Sungjoo Yoo , Youngjung Uh

We tackle the challenge of disentangled representation learning in generative adversarial networks (GANs) from the perspective of regularized optimal transport (OT). Specifically, a smoothed OT loss gives rise to an implicit transportation…

机器学习 · 计算机科学 2019-12-05 Pierre Bréchet , Tao Wu , Thomas Möllenhoff , Daniel Cremers

There exists a correlation between geospatial activity temporal patterns and type of land use. A novel self-supervised approach is proposed to stratify landscape based on mobility activity time series. First, the time series signal is…

计算机视觉与模式识别 · 计算机科学 2024-01-18 Yi Cao , Swetava Ganguli , Vipul Pandey

This paper presents a deep learning-based approach for the spatio-temporal reconstruction of sound fields using Generative Adversarial Networks (GANs). The method utilises a plane wave basis and learns the underlying statistical…

音频与语音处理 · 电气工程与系统科学 2023-08-02 Xenofon Karakonstantis , Efren Fernandez-Grande

Deep learning models have achieved great success in recent years but progress in some domains like cybersecurity is stymied due to a paucity of realistic datasets. Organizations are reluctant to share such data, even internally, due to…

机器学习 · 计算机科学 2021-08-04 Shengzhe Xu , Manish Marwah , Martin Arlitt , Naren Ramakrishnan

Generative Adversarial Networks (GANs) are an unsupervised generative model that learns data distribution through adversarial training. However, recent experiments indicated that GANs are difficult to train due to the requirement of…

计算机视觉与模式识别 · 计算机科学 2022-10-11 Wenliang Qian , Yang Xu , Wangmeng Zuo , Hui Li

While recent machine learning research has revealed connections between deep generative models such as VAEs and rate-distortion losses used in learned compression, most of this work has focused on images. In a similar spirit, we view…

图像与视频处理 · 电气工程与系统科学 2024-10-28 Ruihan Yang , Yibo Yang , Joseph Marino , Stephan Mandt

This paper proposes a framework for modeling sound change that combines deep learning and iterative learning. Acquisition and transmission of speech is modeled by training generations of Generative Adversarial Networks (GANs) on unannotated…

计算与语言 · 计算机科学 2021-09-23 Gašper Beguš

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

Motion planning framed as optimisation in structured latent spaces has recently emerged as competitive with traditional methods in terms of planning success while significantly outperforming them in terms of computational speed. However,…

机器人学 · 计算机科学 2023-03-07 Jun Yamada , Chia-Man Hung , Jack Collins , Ioannis Havoutis , Ingmar Posner

In agriculture, the majority of vision systems perform still image classification. Yet, recent work has highlighted the potential of spatial and temporal cues as a rich source of information to improve the classification performance. In…

机器人学 · 计算机科学 2022-06-28 Claus Smitt , Michael Halstead , Alireza Ahmadi , Chris McCool

The latent code of the recent popular model StyleGAN has learned disentangled representations thanks to the multi-layer style-based generator. Embedding a given image back to the latent space of StyleGAN enables wide interesting semantic…

计算机视觉与模式识别 · 计算机科学 2020-07-06 Shanyan Guan , Ying Tai , Bingbing Ni , Feida Zhu , Feiyue Huang , Xiaokang Yang

Realistic hyperspectral image (HSI) super-resolution (SR) techniques aim to generate a high-resolution (HR) HSI with higher spectral and spatial fidelity from its low-resolution (LR) counterpart. The generative adversarial network (GAN) has…

图像与视频处理 · 电气工程与系统科学 2022-10-05 Yue Shi , Liangxiu Han , Lianghao Han , Sheng Chang , Tongle Hu , Darren Dancey

Generative adversarial networks (GANs) have shown remarkable success in generating realistic data from some predefined prior distribution (e.g., Gaussian noises). However, such prior distribution is often independent of real data and thus…

机器学习 · 计算机科学 2020-08-04 Jiezhang Cao , Yong Guo , Qingyao Wu , Chunhua Shen , Junzhou Huang , Mingkui Tan

Representing the nodes of continuous-time temporal graphs in a low-dimensional latent space has wide-ranging applications, from prediction to visualization. Yet, analyzing continuous-time relational data with timestamped interactions…

机器学习 · 计算机科学 2024-05-28 Raphaël Romero , Jefrey Lijffijt , Riccardo Rastelli , Marco Corneli , Tijl De Bie

In distributed and federated learning algorithms, communication overhead is often reduced by performing multiple local updates between communication rounds. However, due to data heterogeneity across nodes and the local gradient noise within…

机器学习 · 计算机科学 2025-12-02 Yan Huang , Jinming Xu , Jiming Chen , Karl Henrik Johansson