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Gravitational-wave data from advanced-era interferometric detectors consists of background Gaussian noise, frequent transient artefacts, and rare astrophysical signals. Multiple search algorithms exist to detect the signals from compact…

广义相对论与量子宇宙学 · 物理学 2026-01-13 Gregory Ashton , Ann-Kristin Malz , Nicolo Colombo

This article discusses a partially adapted particle filter for estimating the likelihood of a nonlinear structural econometric state space models whose state transition density cannot be expressed in closed form. The filter generates the…

统计方法学 · 统计学 2012-09-05 Jamie Hall , Michael K. Pitt , Robert Kohn

One of the most popular recent areas of machine learning predicates the use of neural networks augmented by information about the underlying process in the form of Partial Differential Equations (PDEs). These physics-informed neural…

流体动力学 · 物理学 2025-06-17 Luca Menicali , David H. Richter , Stefano Castruccio

Bayesian inversion is central to the quantification of uncertainty within problems arising from numerous applications in science and engineering. To formulate the approach, four ingredients are required: a forward model mapping the unknown…

机器学习 · 统计学 2025-05-15 O. Deniz Akyildiz , Mark Girolami , Andrew M. Stuart , Arnaud Vadeboncoeur

In inverse problems, it is widely recognized that the incorporation of a sparsity prior yields a regularization effect on the solution. This approach is grounded on the a priori assumption that the unknown can be appropriately represented…

机器学习 · 统计学 2025-06-13 Giovanni S. Alberti , Luca Ratti , Matteo Santacesaria , Silvia Sciutto

Orthogonal polynomial approximations form the foundation to a set of well-established methods for uncertainty quantification known as polynomial chaos. These approximations deliver models for emulating physical systems in a variety of…

计算工程、金融与科学 · 计算机科学 2022-03-23 Chun Yui Wong , Pranay Seshadri , Andrew B. Duncan , Ashley Scillitoe , Geoffrey Parks

Bayesian analyses require that all variable model parameters are given a prior probability distribution. This can pose a challenge for analyses where multiple experiments are combined if these experiments use different parametrisations for…

统计方法学 · 统计学 2026-03-13 Lukas Koch

Throughout the life sciences we routinely seek to interpret measurements and observations using parameterised mechanistic mathematical models. A fundamental and often overlooked choice in this approach involves relating the solution of a…

定量方法 · 定量生物学 2023-11-10 Ryan J. Murphy , Oliver J. Maclaren , Matthew J. Simpson

Next-generation gravitational wave detectors such as the Einstein Telescope and Cosmic Explorer will have increased sensitivity and observing volumes, enabling unprecedented precision in parameter estimation. However, this enhanced…

广义相对论与量子宇宙学 · 物理学 2024-05-16 Veome Kapil , Luca Reali , Roberto Cotesta , Emanuele Berti

Bayesian inference requires specification of a single, precise prior distribution, whereas frequentist inference only accommodates a vacuous prior. Since virtually every real-world application falls somewhere in between these two extremes,…

统计方法学 · 统计学 2023-09-26 Ryan Martin

The expected growth in wind energy capacity requires efficient and accurate models for wind farm layout optimization, control, and annual energy predictions. Although analytical wake models are widely used for these applications, several…

流体动力学 · 物理学 2023-02-16 Frederik Aerts , Luca Lanzilao , Johan Meyers

We present a fast Bayesian inference framework to address the growing computational cost of gravitational-wave parameter estimation. The increased cost is driven by improved broadband detector sensitivity, particularly at low frequencies…

广义相对论与量子宇宙学 · 物理学 2025-08-07 Abhishek Sharma , Lalit Pathak , Soumen Roy , Anand S. Sengupta

The recently proposed statistical finite element (statFEM) approach synthesises measurement data with finite element models and allows for making predictions about the unknown true system response. We provide a probabilistic error analysis…

统计理论 · 数学 2025-06-17 Toni Karvonen , Fehmi Cirak , Mark Girolami

We present a new Python package, gwbench, implementing the well-established Fisher information formalism as a fast and straightforward tool for the purpose of gravitational-wave benchmarking, i.e. the estimation of signal-to-noise ratios…

广义相对论与量子宇宙学 · 物理学 2021-08-31 Ssohrab Borhanian

Uncertainty quantification plays an important role in achieving trustworthy and reliable learning-based computational imaging. Recent advances in generative modeling and Bayesian neural networks have enabled the development of…

图像与视频处理 · 电气工程与系统科学 2025-10-07 Canberk Ekmekci , Mujdat Cetin

This paper presents a novel machine-learning framework for reconstructing low-order gust-encounter flow field and lift coefficients from sparse, noisy surface pressure measurements. Our study thoroughly investigates the time-varying…

机器学习 · 计算机科学 2025-06-25 Hanieh Mousavi , Jeff D. Eldredge

Wavelet shrinkage estimators are widely applied in several fields of science for denoising data in wavelet domain by reducing the magnitudes of empirical coefficients. In nonparametric regression problem, most of the shrinkage rules are…

统计方法学 · 统计学 2021-09-14 Alex Rodrigo dos Santos Sousa , Nancy Lopes Garcia

Purpose: Undersampling is used to reduce the scan time for high-resolution 3D magnetic resonance imaging. In order to achieve better image quality and avoid manual parameter tuning, we propose a probabilistic Bayesian approach to recover…

图像与视频处理 · 电气工程与系统科学 2022-10-20 Shuai Huang , James J. Lah , Jason W. Allen , Deqiang Qiu

Gravitational waveform (GW) models are a core ingredient for the analysis of compact binary mergers observed by current ground-based interferometers. We focus here on a specific class of such models known as PhenomX, which has gained…

广义相对论与量子宇宙学 · 物理学 2024-12-24 Marta Colleoni , Felip A. Ramis Vidal , Cecilio García-Quirós , Sarp Akçay , Sayantani Bera

Uncertainty quantification (UQ) over graphs arises in a number of safety-critical applications in network science. The Gaussian process (GP), as a classical Bayesian framework for UQ, has been developed to handle graph-structured data by…

机器学习 · 计算机科学 2025-10-08 Jinwen Xu , Qin Lu , Georgios B. Giannakis