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We present a novel probabilistic deep learning approach, the 'Stochastic Latent Transformer' (SLT), designed for the efficient reduced-order modelling of stochastic partial differential equations. Stochastically driven flow models are…

Machine Learning · Computer Science 2024-06-21 Ira J. S. Shokar , Rich R. Kerswell , Peter H. Haynes

Early-time spectroscopy of supernovae (SNe), acquired within days of explosion, yields crucial insights into their outermost ejecta layers, facilitating the study of their environments, progenitor systems, and explosion mechanisms. Recent…

High Energy Astrophysical Phenomena · Physics 2026-01-28 Harry Addison , Chris Frohmaier , Kate Maguire , Robert C. Nichol , Isobel Hook , Stephen J. Smartt

In this work we explore the applicability of unsupervised machine learning algorithms to finding radio transients. Facilities such as the Square Kilometre Array (SKA) will provide huge volumes of data in which to detect rare transients; the…

Deep learning models have been shown to be a powerful solution for Time Series Classification (TSC). State-of-the-art architectures, while producing promising results on the UCR and the UEA archives , present a high number of trainable…

Machine Learning · Computer Science 2025-01-24 Ali Ismail-Fawaz , Maxime Devanne , Stefano Berretti , Jonathan Weber , Germain Forestier

Due to their short timescale, stellar flares are a challenging target for the most modern synoptic sky surveys. The upcoming Vera C. Rubin Legacy Survey of Space and Time (LSST), a project designed to collect more data than any precursor…

Observations of astrophysical transients have brought many novel discoveries and provided new insights into physical processes at work under extreme conditions in the Universe. Multi-wavelength and multi-messenger observations of variable…

Instrumentation and Methods for Astrophysics · Physics 2022-10-19 C. Hoischen , M. Füßling , S. Ohm , A. Balzer , H. Ashkar , K. Bernlöhr , P. Hofverberg , T. L. Holch , T. Murach , H. Prokoph , F. Schüssler , S. J. Zhu , D. Berge , K. Egberts , C. Stegmann

When performing data classification over a stream of continuously occurring instances, a key challenge is to develop an open-world classifier that anticipates instances from an unknown class. Studies addressing this problem, typically…

Computer Vision and Pattern Recognition · Computer Science 2018-10-10 Yang Gao , Swarup Chandra , Zhuoyi Wang , Latifur Khan

Employing large intelligent surfaces (LISs) is a promising solution for improving the coverage and rate of future wireless systems. These surfaces comprise a massive number of nearly-passive elements that interact with the incident signals,…

Information Theory · Computer Science 2019-05-01 Abdelrahman Taha , Muhammad Alrabeiah , Ahmed Alkhateeb

The Laser Interferometer Gravitational wave Observatory (LIGO) and Virgo, advanced ground-based gravitational-wave detectors, will begin collecting science data in 2015. With first detections expected to follow, it is important to quantify…

High Energy Astrophysical Phenomena · Physics 2015-05-11 Reed Essick , Salvatore Vitale , Erik Katsavounidis , Gabriele Vedovato , Sergey Klimenko

We present the Living Swift-XRT Point Source catalogue (LSXPS) and real-time transient detector. This system allows us for the first time to carry out low-latency searches for new transient X-ray events fainter than those available to the…

High Energy Astrophysical Phenomena · Physics 2022-10-26 P. A. Evans , K. L. Page , A. P. Bearmore , R. A. J. Eyles-Ferris , J. P. Osborne , S. Campana , J. A. Kennea , S. B. Cenko

Traffic forecasting, a crucial application of spatio-temporal graph (STG) learning, has traditionally relied on deterministic models for accurate point estimations. Yet, these models fall short of quantifying future uncertainties. Recently,…

Machine Learning · Computer Science 2024-08-08 Lequan Lin , Dai Shi , Andi Han , Junbin Gao

Long Short-Term Memory Networks (LSTMs) have been applied to daily discharge prediction with remarkable success. Many practical scenarios, however, require predictions at more granular timescales. For instance, accurate prediction of short…

Machine Learning · Computer Science 2021-04-20 Martin Gauch , Frederik Kratzert , Daniel Klotz , Grey Nearing , Jimmy Lin , Sepp Hochreiter

An imaging technique with sensitivity to short duration optical transients is described. The technique is based on the use of wide-field cameras operating in a drift scanning mode, whereby persistent objects produce trails on the sensor and…

Instrumentation and Methods for Astrophysics · Physics 2020-04-15 Steven Tingay

We propose the Transformer-based Tidal disruption events (TDE) Classifier (\texttt{TTC}), specifically designed to operate effectively with both real-time alert streams and archival data of the Wide Field Survey Telescope (WFST). It aims to…

The need to recognise long-term dependencies in sequential data such as video streams has made Long Short-Term Memory (LSTM) networks a prominent Artificial Intelligence model for many emerging applications. However, the high computational…

Signal Processing · Electrical Eng. & Systems 2019-10-31 Alexandros Kouris , Stylianos I. Venieris , Michail Rizakis , Christos-Savvas Bouganis

Peculiar velocities introduce correlations between supernova magnitudes, which implies that the supernova Hubble diagram residual carries information on both the matter power spectrum at the present time and its growth rate. By a…

Cosmology and Nongalactic Astrophysics · Physics 2020-05-01 Karolina Garcia , Miguel Quartin , Beatriz B. Siffert

The data taken by the advanced LIGO and Virgo gravitational-wave detectors contains short duration noise transients that limit the significance of astrophysical detections and reduce the duty cycle of the instruments. As the advanced…

Instrumentation and Methods for Astrophysics · Physics 2017-01-25 Jade Powell , Alejandro Torres-Forné , Ryan Lynch , Daniele Trifirò , Elena Cuoco , Marco Cavaglià , Ik Siong Heng , José A. Font

Previous work has demonstrated that the Large Synoptic Survey Telescope (LSST) has the capability to detect transiting planets around main sequence stars in relatively short ($<$ 20 days) periods and using standard algorithms for transit…

Earth and Planetary Astrophysics · Physics 2018-10-01 Michael B. Lund , Joshua A. Pepper , Avi Shporer , Keivan G. Stassun

There is an increasing number of large, digital, synoptic sky surveys, in which repeated observations are obtained over large areas of the sky in multiple epochs. Likewise, there is a growth in the number of (often automated or robotic)…

We present the first version of the ALeRCE (Automatic Learning for the Rapid Classification of Events) broker light curve classifier. ALeRCE is currently processing the Zwicky Transient Facility (ZTF) alert stream, in preparation for the…