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(Conditional) Generative Adversarial Networks (GANs) have found great success in recent years, due to their ability to approximate (conditional) distributions over extremely high dimensional spaces. However, they are highly unstable and…

机器学习 · 统计学 2023-01-05 Pere Díaz Lozano , Toni Lozano Bagén , Josep Vives

Neural Stochastic Differential Equations (Neural SDEs) have emerged as powerful mesh-free generative models for continuous stochastic processes, with critical applications in fields such as finance, physics, and biology. Previous…

机器学习 · 计算机科学 2025-03-28 Jianxin Zhang , Josh Viktorov , Doosan Jung , Emily Pitler

Neural Stochastic Differential Equations (Neural SDEs) provide a principled framework for modeling continuous-time stochastic processes and have been widely adopted in fields ranging from physics to finance. Recent advances suggest that…

机器学习 · 计算机科学 2026-03-17 Yuanjian Xu , Yuan Shuai , Jianing Hao , Guang Zhang

Generative adversarial networks (GANs) are designed with the help of min-max optimization problems that are solved with stochastic gradient-type algorithms which are known to be non-robust. In this work we revisit a non-adversarial method…

机器学习 · 计算机科学 2018-11-26 Kalliopi Basioti , George V. Moustakides , Emmanouil Z. Psarakis

We introduce Kernel Density Discrimination GAN (KDD GAN), a novel method for generative adversarial learning. KDD GAN formulates the training as a likelihood ratio optimization problem where the data distributions are written explicitly via…

机器学习 · 计算机科学 2021-07-14 Abdelhak Lemkhenter , Adam Bielski , Alp Eren Sari , Paolo Favaro

Stochastic differential equations (SDEs) are a staple of mathematical modelling of temporal dynamics. However, a fundamental limitation has been that such models have typically been relatively inflexible, which recent work introducing…

机器学习 · 计算机科学 2021-05-12 Patrick Kidger , James Foster , Xuechen Li , Harald Oberhauser , Terry Lyons

Stochastic differential equations (SDEs) have been widely used to model real world random phenomena. Existing works mainly focus on the case where the time series is modeled by a single SDE, which might be restrictive for modeling time…

机器学习 · 计算机科学 2024-01-23 Zhongchang Sun , Yousef El-Laham , Svitlana Vyetrenko

Due to their expressive power, neural networks (NNs) are promising templates for functional optimization problems, particularly for reach-avoid certificate generation for systems governed by stochastic differential equations (SDEs).…

系统与控制 · 电气工程与系统科学 2026-03-03 Chun-Wei Kong , Sebastian Escobar , Ibon Gracia , Jay McMahon , Morteza Lahijanian

We consider the filtering and prediction problem for a diffusion process. The signal and observation are modeled by stochastic differential equations (SDEs) driven by correlated Wiener processes. In classical estimation theory,…

机器学习 · 统计学 2022-09-16 Fabian Germ , Marc Sabate-Vidales

Simulating parameter-dependent stochastic differential equations (SDEs) presents significant computational challenges, as separate high-fidelity simulations are typically required for each parameter value of interest. Despite the success of…

机器学习 · 统计学 2026-02-03 Minglei Yang , Sicheng He

The discovery of structure from time series data is a key problem in fields of study working with complex systems. Most identifiability results and learning algorithms assume the underlying dynamics to be discrete in time. Comparatively…

机器学习 · 统计学 2022-02-04 Alexis Bellot , Kim Branson , Mihaela van der Schaar

We present a novel framework for kernel learning with sequential data of any kind, such as time series, sequences of graphs, or strings. Our approach is based on signature features which can be seen as an ordered variant of sample…

机器学习 · 统计学 2016-02-01 Franz J Király , Harald Oberhauser

The Deep Neural Networks are vulnerable toadversarial exam-ples(Figure 1), making the DNNs-based systems collapsed byadding the inconspicuous perturbations to the images. Most of the existing works for adversarial attack are gradient-based…

计算机视觉与模式识别 · 计算机科学 2021-07-21 Shaohao Lu , Yuqiao Xian , Ke Yan , Yi Hu , Xing Sun , Xiaowei Guo , Feiyue Huang , Wei-Shi Zheng

Neural SDEs combine many of the best qualities of both RNNs and SDEs: memory efficient training, high-capacity function approximation, and strong priors on model space. This makes them a natural choice for modelling many types of temporal…

机器学习 · 计算机科学 2021-10-20 Patrick Kidger , James Foster , Xuechen Li , Terry Lyons

Neuromorphic data carries information in spatio-temporal patterns encoded by spikes. Accordingly, a central problem in neuromorphic computing is training spiking neural networks (SNNs) to reproduce spatio-temporal spiking patterns in…

机器学习 · 计算机科学 2021-11-03 Bleema Rosenfeld , Osvaldo Simeone , Bipin Rajendran

Anomalous crack region detection is a typical binary semantic segmentation task, which aims to detect pixels representing cracks on pavement surface images automatically by algorithms. Although existing deep learning-based methods have…

计算机视觉与模式识别 · 计算机科学 2024-03-11 Lei Xu , Moncef Gabbouj

Generative adversarial networks (GANs) are a learning framework that rely on training a discriminator to estimate a measure of difference between a target and generated distributions. GANs, as normally formulated, rely on the generated…

机器学习 · 统计学 2018-02-23 R Devon Hjelm , Athul Paul Jacob , Tong Che , Adam Trischler , Kyunghyun Cho , Yoshua Bengio

Creating noise from data is easy; creating data from noise is generative modeling. We present a stochastic differential equation (SDE) that smoothly transforms a complex data distribution to a known prior distribution by slowly injecting…

机器学习 · 计算机科学 2021-02-11 Yang Song , Jascha Sohl-Dickstein , Diederik P. Kingma , Abhishek Kumar , Stefano Ermon , Ben Poole

This paper introduces Structured Noise Space GAN (SNS-GAN), a novel approach in the field of generative modeling specifically tailored for class-conditional generation in both image and time series data. It addresses the challenge of…

机器学习 · 计算机科学 2023-12-21 Hamidreza Gholamrezaei , Alireza Koochali , Andreas Dengel , Sheraz Ahmed

Simulating complex physical systems often involves solving partial differential equations (PDEs) with some closures due to the presence of multi-scale physics that cannot be fully resolved. Therefore, reliable and accurate closure models…

计算物理 · 物理学 2020-02-19 Jin-Long Wu , Karthik Kashinath , Adrian Albert , Dragos Chirila , Prabhat , Heng Xiao
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