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Understanding and dealing with inference biases in gravitational-wave (GW) parameter estimation when a plethora of signals are present in the data is one of the key challenges for the analysis of data from future GW detectors. Working…

广义相对论与量子宇宙学 · 物理学 2021-08-25 Andrea Antonelli , Ollie Burke , Jonathan R. Gair

Radio maps reflect the spatial distribution of signal strength and are essential for applications like smart cities, IoT, and wireless network planning. However, reconstructing accurate radio maps from sparse measurements remains…

计算机视觉与模式识别 · 计算机科学 2025-07-09 Chuyun Deng , Na Liu , Wei Xie , Lianming Xu , Li Wang

We derive a method to reconstruct Gaussian signals from linear measurements with Gaussian noise. This new algorithm is intended for applications in astrophysics and other sciences. The starting point of our considerations is the principle…

天体物理仪器与方法 · 物理学 2011-10-18 Niels Oppermann , Georg Robbers , Torsten A. Ensslin

Cumulant mapping has been recently suggested [Frasinski, Phys. Chem. Chem. Phys. 24, 207767 (2022)] as an efficient approach to observing multi-particle fragmentation pathways, while bypassing the restrictions of the usual…

化学物理 · 物理学 2025-04-11 S. Patchkovskii , J. Mikosch

Optical microscopy contributes to the ever-increasing progress in biological and biomedical studies, as it allows the implementation of minimally invasive experimental pipelines to translate the data of measured samples into valuable…

定量方法 · 定量生物学 2025-04-03 Elena Corbetta , Thomas Bocklitz

Although the MUltiple SIgnal Classification (MUSIC) algorithm has demonstrated suitability as a microwave imaging technique for detecting anomalies, there is a fundamental limit that it requires a switching device to be used which permits…

数值分析 · 数学 2025-12-03 Won-Kwang Park

The Laser Interferometer Space Antenna (LISA) mission is being developed by ESA with NASA participation. As it has recently passed the Mission Adoption milestone, models of the instruments and noise performance are becoming more detailed,…

Robustness, domain adaptation, photometric/occlusion invariance, sensor drift, and alignment style are treated as separate literatures with separate method families. Under label-preserving deployment shift they share one geometric object:…

机器学习 · 计算机科学 2026-05-26 Vishal Rajput

Sensor selection refers to the problem of intelligently selecting a small subset of a collection of available sensors to reduce the sensing cost while preserving signal acquisition performance. The majority of sensor selection algorithms…

其他计算机科学 · 计算机科学 2017-02-27 Amirali Aghazadeh , Mohammad Golbabaee , Andrew S. Lan , Richard G. Baraniuk

We consider the problem of subspace estimation in situations where the number of available snapshots and the observation dimension are comparable in magnitude. In this context, traditional subspace methods tend to fail because the…

信息论 · 计算机科学 2016-11-15 Pascal Vallet , Philippe Loubaton , Xavier Mestre

Recent improvements in data collection volume from planetary and space physics missions have allowed the application of novel data science techniques. The Cassini mission for example collected over 600 gigabytes of scientific data from 2004…

空间物理 · 物理学 2023-07-17 A. R. Azari , J. W. Lockhart , M. W. Liemohn , X. Jia

Cosmic shear is regarded one of the most powerful probes to reveal the properties of dark matter and dark energy. To fully utilize its potential, one has to be able to control systematic effects down to below the level of the statistical…

宇宙学与河外天体物理 · 物理学 2010-02-03 B. Joachimi , P. Schneider

Cosmic microwave background (CMB) radiation data obtained by different experiments contain, besides the desired signal, a superposition of microwave sky contributions. We present a fast and robust method, using a wavelet decomposition on…

宇宙学与河外天体物理 · 物理学 2013-05-24 R. Fernández-Cobos , P. Vielva , R. B. Barreiro , E. Martínez-González

Representing signals with sparse vectors has a wide range of applications that range from image and video coding to shape representation and health monitoring. In many applications with real-time requirements, or that deal with…

量子物理 · 物理学 2022-08-09 Armando Bellante , Stefano Zanero

This work describes a novel data-driven latent space inference framework built on paired autoencoders to handle observational inconsistencies when solving inverse problems. Our approach uses two autoencoders, one for the parameter space and…

机器学习 · 计算机科学 2026-01-19 Emma Hart , Bas Peters , Julianne Chung , Matthias Chung

Observations of cosmic microwave background polarisation, essential for probing a potential phase of inflation in the early universe, suffer from contamination by polarised emission from the Galactic interstellar medium. This work combines…

宇宙学与河外天体物理 · 物理学 2024-09-25 Jacques Delabrouille

Sparse coding, which refers to modeling a signal as sparse linear combinations of the elements of a learned dictionary, has proven to be a successful (and interpretable) approach in applications such as signal processing, computer vision,…

机器学习 · 计算机科学 2023-06-02 Muthu Chidambaram , Chenwei Wu , Yu Cheng , Rong Ge

This work describes Cosmic Microwave Background (CMB) data analysis algorithms and their implementations, developed to produce a pixelized map of the sky and a corresponding pixel-pixel noise correlation matrix from time ordered data for a…

Matrix completion is a modern missing data problem where both the missing structure and the underlying parameter are high dimensional. Although missing structure is a key component to any missing data problems, existing matrix completion…

机器学习 · 统计学 2020-03-23 Xiaojun Mao , Raymond K. W. Wong , Song Xi Chen

The measurement of cosmic shear using weak gravitational lensing is a challenging task that involves a number of complicated procedures. We study in detail the systematic errors in the measurement of weak lensing Minkowski Functionals…

宇宙学与河外天体物理 · 物理学 2015-06-18 Masato Shirasaki , Naoki Yoshida