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search_query=cat:astro-ph.*+AND+lastUpdatedDate:[202411272000+TO+202412032000]&start=0&max_results=5000
<h1>New astro-ph.* submissions cross listed on cs.LG, physics.data-an, stat.*, cs.AI staritng 202411272000 and ending 202412032000</h1>Feed last updated: 2024-12-02T00:00:00-05:00<a href="http://arxiv.org/pdf/2411.19122v1"><h2>Wavelet Scattering Transform for Gravitational Waves Analysis. An
Application to Glitch Characterization</h2></a>Authors: Alessandro Licciardi, Davide Carbone, Lamberto Rondoni, Alessandro Nagar</br>Comments: No comment found</br>Primary Category: gr-qc</br>All Categories: gr-qc, astro-ph.IM, physics.data-an</br><p>Gravitational waves, first predicted by Albert Einstein within the framework
of general relativity, were confirmed in 2015 by the LIGO/Virgo collaboration,
marking a pivotal breakthrough in astrophysics. Despite this achievement, a key
challenge remains in distinguishing true gravitational wave signals from noise
artifacts, or "glitches," which can distort data and affect the quality of
observations. Current state-of-the-art methods, such as the Q-transform, are
widely used for signal processing, but face limitations when addressing certain
types of signals. In this study, we investigate the Wavelet Scattering
Transform (WST), a recent signal analysis method, as a complementary approach.
Theoretical motivation for WST arises from its stability under signal
deformations and its equivariance properties, which make it particularly suited
for the complex nature of gravitational wave data. Our experiments on the LIGO
O1a dataset show that WST simplifies classification tasks and enables the use
of more efficient architectures compared to traditional methods. Furthermore,
we explore the potential benefits of integrating WST with the Q-transform,
demonstrating that ensemble methods exploiting both techniques can capture
complementary features of the signal and improve overall performance. This work
contributes to advancing machine learning applications in gravitational wave
analysis, introducing refined preprocessing techniques that improve signal
detection and classification.</p></br><a href="http://arxiv.org/pdf/2411.19450v1"><h2>Unsupervised Learning Approach to Anomaly Detection in Gravitational
search_query=cat:astro-ph.*+AND+lastUpdatedDate:[202411282000+TO+202412042000]&start=0&max_results=5000
<h1>New astro-ph.* submissions cross listed on physics.data-an, cs.LG, stat.*, cs.AI staritng 202411282000 and ending 202412042000</h1>Feed last updated: 2024-12-03T00:00:00-05:00<a href="http://arxiv.org/pdf/2411.19450v1"><h2>Unsupervised Learning Approach to Anomaly Detection in Gravitational
Wave Data</h2></a>Authors: Ammar Fayad</br>Comments: No comment found</br>Primary Category: gr-qc</br>All Categories: gr-qc, astro-ph.IM, cs.LG</br><p>Gravitational waves (GW), predicted by Einstein's General Theory of
Relativity, provide a powerful probe of astrophysical phenomena and fundamental
physics. In this work, we propose an unsupervised anomaly detection method
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