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Imaging the 6D phase space of a beam in a particle accelerator in a single shot is currently impossible. Single shot beam measurements only exist for certain 2D beam projections and these methods are destructive. A virtual diagnostic that…

加速器物理 · 物理学 2024-08-06 Alexander Scheinker

Variational autoencoder (VAE) is a very popular and well-investigated generative model in neural learning research. To leverage VAE in practical tasks dealing with a massive dataset of large dimensions, it is required to deal with the…

机器学习 · 统计学 2021-05-28 Zihao Wang , Hervé Delingette

Variational autoencoders (VAEs) are fundamental for generative modeling and image reconstruction, yet their performance often struggles to maintain high fidelity in reconstructions. This study introduces a hybrid model, quantum variational…

计算机视觉与模式识别 · 计算机科学 2025-03-10 Farina Riaz , Fakhar Zaman , Hajime Suzuki , Sharif Abuadbba , David Nguyen

We present a data-driven generative framework for synthesizing blood vessel 3D geometry. This is a challenging task due to the complexity of vascular systems, which are highly variating in shape, size, and structure. Existing model-based…

计算机视觉与模式识别 · 计算机科学 2025-05-20 Paula Feldman , Miguel Fainstein , Viviana Siless , Claudio Delrieux , Emmanuel Iarussi

Variational autoencoder (VAE) is one of the most common techniques in the field of medical image generation, where this architecture has shown advanced researchers in recent years and has developed into various architectures. VAE has…

机器学习 · 计算机科学 2024-11-13 Khadija Rais , Mohamed Amroune , Abdelmadjid Benmachiche , Mohamed Yassine Haouam

Deep generative models applied to audio have improved by a large margin the state-of-the-art in many speech and music related tasks. However, as raw waveform modelling remains an inherently difficult task, audio generative models are either…

机器学习 · 计算机科学 2021-12-16 Antoine Caillon , Philippe Esling

Full waveform inversion (FWI) can be expressed in a Bayesian framework, where the associated uncertainties are captured by the posterior probability distribution (PPD). In practice, solving Bayesian FWI with sampling-based methods such as…

地球物理 · 物理学 2025-11-05 Shuhua Hu , Mrinal K Sen , Zeyu Zhao , Abdelrahman Elmeliegy , Shuo Zhang

A variational autoencoder (VAE) is a probabilistic machine learning framework for posterior inference that projects an input set of high-dimensional data to a lower-dimensional, latent space. The latent space learned with a VAE offers…

机器学习 · 计算机科学 2022-11-16 Rafael Pastrana

Learning latent representations that are simultaneously expressive, geometrically well-structured, and reliably calibrated remains a central challenge for Variational Autoencoders (VAEs). Standard VAEs typically assume a diagonal Gaussian…

机器学习 · 计算机科学 2025-12-02 Mehmet Can Yavuz

Gastrointestinal (GI) imaging via Wireless Capsule Endoscopy (WCE) generates a large number of images requiring manual screening. Deep learning-based Clinical Decision Support (CDS) systems can assist screening, yet their performance relies…

计算机视觉与模式识别 · 计算机科学 2026-02-13 Dimitrios E. Diamantis , Dimitris K. Iakovidis

Recent advances in generative AI offer promising solutions for synthetic data generation but often rely on large datasets for effective training. To address this limitation, we propose a novel generative model that learns from limited data…

机器学习 · 统计学 2025-05-27 Michail Spitieris , Massimiliano Ruocco , Abdulmajid Murad , Alessandro Nocente

Integrating physics models within machine learning models holds considerable promise toward learning robust models with improved interpretability and abilities to extrapolate. In this work, we focus on the integration of incomplete physics…

机器学习 · 计算机科学 2021-10-28 Naoya Takeishi , Alexandros Kalousis

Layout design with complex constraints is a challenging problem to solve due to the non-uniqueness of the solution and the difficulties in incorporating the constraints into the conventional optimization-based methods. In this paper, we…

信号处理 · 电气工程与系统科学 2018-06-11 Yujie Zhang , Wenjing Ye

We present a novel method for constructing Variational Autoencoder (VAE). Instead of using pixel-by-pixel loss, we enforce deep feature consistency between the input and the output of a VAE, which ensures the VAE's output to preserve the…

计算机视觉与模式识别 · 计算机科学 2024-03-21 Xianxu Hou , Linlin Shen , Ke Sun , Guoping Qiu

Generative modeling of 3D brain MRIs presents difficulties in achieving high visual fidelity while ensuring sufficient coverage of the data distribution. In this work, we propose to address this challenge with composable, multiscale…

图像与视频处理 · 电气工程与系统科学 2023-01-12 Jaivardhan Kapoor , Jakob H. Macke , Christian F. Baumgartner

Simulating and predicting dynamics of quantum many-body systems is extremely challenging, even for state-of-the-art computational methods, due to the spread of entanglement across the system. However, in the long-wavelength limit, quantum…

Considering the high computation cost produced in conventional computation fluid dynamic simulations, machine learning methods have been introduced to flow dynamic simulations in recent years. However, most of studies focus mainly on…

流体动力学 · 物理学 2020-10-13 M. Cheng , F. Fang , C. C. Pain , I. M. Navon

Longitudinal datasets measured repeatedly over time from individual subjects, arise in many biomedical, psychological, social, and other studies. A common approach to analyse high-dimensional data that contains missing values is to learn a…

Variational auto-encoders (VAEs) provide an attractive solution to image generation problem. However, they tend to produce blurred and over-smoothed images due to their dependence on pixel-wise reconstruction loss. This paper introduces a…

计算机视觉与模式识别 · 计算机科学 2018-04-30 Salman H. Khan , Munawar Hayat , Nick Barnes

Cosmological field-level inference requires differentiable forward models that solve the challenging dynamics of gas and dark matter under hydrodynamics and gravity. We propose a hybrid approach where gravitational forces are computed using…

宇宙学与河外天体物理 · 物理学 2025-10-31 Arne Thomsen , Tilman Tröster , François Lanusse