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In searching for continuous gravitational waves over very many ($\approx 10^{17}$) templates , clustering is a powerful tool which increases the search sensitivity by identifying and bundling together candidates that are due to the same…

广义相对论与量子宇宙学 · 物理学 2020-03-11 Banafsheh Beheshtipour , Maria Alessandra Papa

Searches for continuous gravitational waves target nearly monochromatic gravitational wave emission from e.g. non-axysmmetric fast-spinning neutron stars. Broad surveys often require to explicitly search for a very large number of different…

广义相对论与量子宇宙学 · 物理学 2022-12-14 Benjamin Steltner , Thorben Menne , Maria Alessandra Papa , Heinz-Bernd Eggenstein

In hierarchical searches for continuous gravitational waves, clustering of candidates is an important postprocessing step because it reduces the number of noise candidates that are followed-up at successive stages [1][7][12]. Previous…

广义相对论与量子宇宙学 · 物理学 2017-11-08 Avneet Singh , Maria Alessandra Papa , Heinz-Bernd Eggenstein , Sinéad Walsh

The matched filtering paradigm is the mainstay of gravitational wave (GW) searches from astrophysical coalescing compact binaries. The compact binary coalescence (CBC) search pipelines perform the matched filter between the GW detector's…

广义相对论与量子宇宙学 · 物理学 2024-06-19 Chetan Verma , Amit Reza , Dilip Krishnaswamy , Sarah Caudill , Gurudatt Gaur

We present a first proof-of-principle study for using deep neural networks (DNNs) as a novel search method for continuous gravitational waves (CWs) from unknown spinning neutron stars. The sensitivity of current wide-parameter-space CW…

广义相对论与量子宇宙学 · 物理学 2019-09-09 Christoph Dreissigacker , Rahul Sharma , Chris Messenger , Ruining Zhao , Reinhard Prix

All scientific claims of gravitational wave discovery to date rely on the offline statistical analysis of candidate observations in order to quantify significance relative to background processes. The current foundation in such offline…

广义相对论与量子宇宙学 · 物理学 2022-07-12 Michael Andrews , Manfred Paulini , Luke Sellers , Alexey Bobrick , Gianni Martire , Haydn Vestal

Gravitational-wave bursts are observable as bright clusters of pixels in spectrograms of strain power. Clustering algorithms can be used to identify candidate gravitational-wave events. Clusters are often identified by grouping together…

天体物理仪器与方法 · 物理学 2015-06-17 Eric Thrane , Michael Coughlin

Gravitational wave detection has opened up new avenues for exploring and understanding some of the fundamental principles of the universe. The optimal method for detecting modelled gravitational-wave events involves template-based matched…

广义相对论与量子宇宙学 · 物理学 2025-01-15 Damon Beveridge , Alistair McLeod , Linqing Wen , Andreas Wicenec

We report on the construction of a deep convolutional neural network that can reproduce the sensitivity of a matched-filtering search for binary black hole gravitational-wave signals. The standard method for the detection of well modeled…

天体物理仪器与方法 · 物理学 2018-04-11 Hunter Gabbard , Michael Williams , Fergus Hayes , Chris Messenger

Compact binary systems emit gravitational radiation which is potentially detectable by current Earth bound detectors. Extracting these signals from the instruments' background noise is a complex problem and the computational cost of most…

天体物理仪器与方法 · 物理学 2022-02-11 Marlin B. Schäfer , Ondřej Zelenka , Alexander H. Nitz , Frank Ohme , Bernd Brügmann

The detection of unmodeled gravitational-wave bursts by ground-based interferometric gravitational-wave detectors is a major goal for the advanced detector era. These searches are commonly cast as pattern recognition problems, where the…

广义相对论与量子宇宙学 · 物理学 2015-08-26 Michael Coughlin , Patrick Meyers , Shivaraj Kandhasamy , Eric Thrane , Nelson Christensen

Clustering high-dimensional datasets is hard because interpoint distances become less informative in high-dimensional spaces. We present a clustering algorithm that performs nonlinear dimensionality reduction and clustering jointly. The…

机器学习 · 计算机科学 2018-03-06 Sohil Atul Shah , Vladlen Koltun

Gravitational wave science is a pioneering field with rapidly evolving data analysis methodology currently assimilating and inventing deep learning techniques. The bulk of the sophisticated flagship searches of the field rely on the…

天体物理仪器与方法 · 物理学 2022-02-23 Jingkai Yan , Mariam Avagyan , Robert E. Colgan , Doğa Veske , Imre Bartos , John Wright , Zsuzsa Márka , Szabolcs Márka

Gravitational wave searches rely on a combination of methods, including matched filtering, coherent analyses, and more recent machine learning based pipelines. For compact binary coalescences, where signals originate from the relativistic…

广义相对论与量子宇宙学 · 物理学 2026-03-11 Lorenzo Mobilia , Tito Dal Canton , Gianluca Maria Guidi

Deep neural networks (DNNs) offer a means of addressing the challenging task of clustering high-dimensional data. DNNs can extract useful features, and so produce a lower dimensional representation, which is more amenable to clustering…

机器学习 · 计算机科学 2021-07-23 Louis Mahon , Thomas Lukasiewicz

The clustering methods have recently absorbed even-increasing attention in learning and vision. Deep clustering combines embedding and clustering together to obtain optimal embedding subspace for clustering, which can be more effective…

机器学习 · 计算机科学 2019-05-01 Xu Yang , Cheng Deng , Feng Zheng , Junchi Yan , Wei Liu

Radar signals have been dramatically increasing in complexity, limiting the source separation ability of traditional approaches. In this paper we propose a Deep Learning-based clustering method, which encodes concurrent signals into images,…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Stefano Gasperini , Magdalini Paschali , Carsten Hopke , David Wittmann , Nassir Navab

The detection of gravitational waves is considered to be one of the most magnificent discoveries of the century. Due to the high computational cost of matched filtering pipeline, there is a hunt for an alternative powerful system. I…

天体物理仪器与方法 · 物理学 2021-01-05 Hrithika Dodia

Machine learning can be a powerful tool to discover new signal types in astronomical data. We here apply it to search for long-duration transient gravitational waves triggered by pulsar glitches, which could yield physical insight into the…

高能天体物理现象 · 物理学 2023-07-18 Luana M. Modafferi , Rodrigo Tenorio , David Keitel

A promising direction in deep learning research consists in learning representations and simultaneously discovering cluster structure in unlabeled data by optimizing a discriminative loss function. As opposed to supervised deep learning,…

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