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Gravitational wave (GW) transient searches rely on signal-noise discriminators to distinguish astrophysical signals from noise artefacts. These discriminators are typically tuned towards expected signal morphologies, which may limit their…

广义相对论与量子宇宙学 · 物理学 2025-05-14 Johann Fernandes , Archana Pai , Koustav Chandra

We introduce pyGSL, a Python library that provides efficient implementations of state-of-the-art graph structure learning models along with diverse datasets to evaluate them on. The implementations are written in GPU-friendly ways, allowing…

机器学习 · 计算机科学 2022-11-08 Max Wasserman , Gonzalo Mateos

Convolutional layers are a major driving force behind the successes of deep learning. Pointwise convolution (PWC) is a 1x1 convolutional filter that is primarily used for parameter reduction. However, the PWC ignores the spatial information…

计算机视觉与模式识别 · 计算机科学 2020-02-07 Pratik Mazumder , Pravendra Singh , Vinay Namboodiri

The next generation of gravitational-wave observatories will reach low frequency limits on the orders of a few Hz, thus enabling the detection of gravitational wave signals of very long duration. The run time of standard parameter…

广义相对论与量子宇宙学 · 物理学 2021-09-22 Hong Qi , Vivien Raymond

Gravitational Waves (GWs) from the early universe and unresolved astrophysical sources are expected to create a stochastic GW background (SGWB). The GW radiometer algorithm is well suited to probe such a background using data from ground…

广义相对论与量子宇宙学 · 物理学 2015-09-23 Anirban Ain , Prathamesh Dalvi , Sanjit Mitra

We present a new method which accounts for changes in the properties of gravitational-wave detector noise over time in the PyCBC search for gravitational waves from compact binary coalescences. We use information from LIGO data quality…

广义相对论与量子宇宙学 · 物理学 2022-12-07 Derek Davis , Max Trevor , Simone Mozzon , Laura K. Nuttall

As we move into an era of more sensitive pulsar timing array data sets, we may be able to resolve individual gravitational wave sources from the stochastic gravitational wave background. While some of these sources, like orbiting massive…

广义相对论与量子宇宙学 · 物理学 2024-12-02 Jacob A. Taylor , Rand Burnette , Bence Bécsy , Neil J. Cornish

A stochastic gravitational wave background (SGWB), created by the superposition of signals from unresolved astrophysical sources, may be detected in the next few years. Estimating the variation of intensity across the sky can, therefore,…

广义相对论与量子宇宙学 · 物理学 2021-04-29 Jishnu Suresh , Anirban Ain , Sanjit Mitra

Recent discoveries of gravitational wave (GW) signals from astrophysical compact binary systems of neutron stars and black holes have firmly established them as prime sources for advanced GW detectors. Theoretical templates of expected…

广义相对论与量子宇宙学 · 物理学 2019-02-04 Soumen Roy , Anand S. Sengupta , Parameswaran Ajith

The promise of multi-messenger astronomy relies on the rapid detection of gravitational waves at very low latencies ($\mathcal{O}$(1\,s)) in order to maximize the amount of time available for follow-up observations. In recent years,…

Within the next several years pulsar timing arrays (PTAs) are positioned to detect the stochastic gravitational-wave background (GWB) likely produced by the collection of inspiralling super-massive black holes binaries, and potentially…

广义相对论与量子宇宙学 · 物理学 2021-02-24 Yacine Ali-Haïmoud , Tristan L. Smith , Chiara M. F. Mingarelli

pySLAM is an open-source Python framework for Visual SLAM that supports monocular, stereo, and RGB-D camera inputs. It offers a flexible and modular interface, integrating a broad range of both classical and learning-based local features.…

机器人学 · 计算机科学 2025-08-05 Luigi Freda

We introduce a Python framework designed to automate the most common tasks associated with the extraction and upscaling of the statistics of single-impact crater functions to inform coefficients of continuum equations describing surface…

计算物理 · 物理学 2014-10-31 Scott A. Norris

The stochastic gravitational-wave background (SGWB) is expected to arise from the superposition of many independent and unresolved gravitational-wave signals of either cosmological or astrophysical origin. The spectral content of the SGWB…

宇宙学与河外天体物理 · 物理学 2013-08-27 Vuk Mandic , Eric Thrane , Stefanos Giampanis , Tania Regimbau

We introduce $\texttt{GWFAST}$, a Fisher information matrix $\texttt{Python}$ code that allows easy and efficient estimation of signal-to-noise ratios and parameter measurement errors for large catalogs of resolved sources observed by…

天体物理仪器与方法 · 物理学 2022-10-25 Francesco Iacovelli , Michele Mancarella , Stefano Foffa , Michele Maggiore

The detection of stochastic gravitational wave background (SGWB) is among the leading scientific goals of the space-borne gravitational wave observatory, which would have significant impact on astrophysics and fundamental physics. In this…

广义相对论与量子宇宙学 · 物理学 2023-01-04 Jun Cheng , En-Kun Li , Yi-Ming Hu , Zheng-Cheng Liang , Jian-dong Zhang , Jianwei Mei

The yaglm package aims to make the broader ecosystem of modern generalized linear models accessible to data analysts and researchers. This ecosystem encompasses a range of loss functions (e.g. linear, logistic, quantile regression),…

统计计算 · 统计学 2021-10-13 Iain Carmichael , Thomas Keefe , Naomi Giertych , Jonathan P Williams

We present an automatic approach to discover analytic population models for gravitational-wave (GW) events from data. As more gravitational-wave (GW) events are detected, flexible models such as Gaussian Mixture Models have become more…

天体物理仪器与方法 · 物理学 2022-07-27 Kaze W. K Wong , Miles Cranmer

Fully coherent searches (over realistic ranges of parameter space and year-long observation times) for unknown sources of continuous gravitational waves are computationally prohibitive. Less expensive hierarchical searches divide the data…

广义相对论与量子宇宙学 · 物理学 2009-10-27 Holger J. Pletsch , Bruce Allen