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We present a pipeline for geomorphological analysis that uses structure from motion (SfM) and deep learning on close-range aerial imagery to estimate spatial distributions of rock traits (size, roundness, and orientation) along a tectonic…

Global ambient air pollution, a transboundary challenge, is typically addressed through interventions relying on data from spatially sparse and heterogeneously placed monitoring stations. These stations often encounter temporal data gaps…

Machine Learning · Computer Science 2024-02-19 Liam J Berrisford , Hugo Barbosa , Ronaldo Menezes

The rate of image acquisition in modern synoptic imaging surveys has already begun to outpace the feasibility of keeping astronomers in the real-time discovery and classification loop. Here we present the inner workings of a framework,…

Instrumentation and Methods for Astrophysics · Physics 2015-05-28 J. S. Bloom , J. W. Richards , P. E. Nugent , R. M. Quimby , M. M. Kasliwal , D. L. Starr , D. Poznanski , E. O. Ofek , S. B. Cenko , N. R. Butler , S. R. Kulkarni , A. Gal-Yam , N. Law

We have searched for anomalous events using 2,520 hours of archival observations from Murriyang, CSIRO's Parkes radio telescope. These observations were originally undertaken to search for pulsars. We used a machine-learning algorithm based…

Instrumentation and Methods for Astrophysics · Physics 2025-01-10 X. Yang , G. Hobbs , S. -B. Zhang , A. Zic , Lawrence Toomey , Y. Li , J. -S. Wang , S. Dai , X. -F. Wu

I present here a review of past and present multi-disciplinary research of the Pittsburgh Computational AstroStatistics (PiCA) group. This group is dedicated to developing fast and efficient statistical algorithms for analysing huge…

Microwave telescopes require an ever-increasing control of experimental systematics in their quest to measure the Cosmic Microwave Background (CMB) to exquisite levels of precision. One important systematic for ground and balloon-borne…

Instrumentation and Methods for Astrophysics · Physics 2022-07-13 Alexandre E. Adler , Adriaan J. Duivenvoorden , Jon E. Gudmundsson

As the frontline data for cancer diagnosis, microscopic pathology images are fundamental for providing patients with rapid and accurate treatment. However, despite their practical value, the deep learning community has largely overlooked…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Sungrae Hong , Hyeongmin Park , Youngsin Ko , Sol Lee , Bryan Wong , Mun Yong Yi

Current synoptic sky surveys monitor large areas of the sky to find variable and transient astronomical sources. As the number of detections per night at a single telescope easily exceeds several thousand, current detection pipelines make…

We use the Atacama Large sub/Millimetre Array (ALMA) to efficiently observe spectral lines across Bands 3, 4, 5, 6, 7, and 8 at high-resolution (0.5" - 0.1") for 16 bright southern Herschel sources at $1.5 < z < 4.2$. With only six and a…

Organizations leverage anomaly and changepoint detection algorithms to detect changes in user behavior or service availability and performance. Many off-the-shelf detection algorithms, though effective, cannot readily be used in large…

Machine Learning · Computer Science 2022-05-25 Sourav Chatterjee , Rohan Bopardikar , Marius Guerard , Uttam Thakore , Xiaodong Jiang

The wealth of smartphone data collected by the Cosmic Ray Extremely Distributed Observatory(CREDO) greatly surpasses the capabilities of manual analysis. So, efficient means of rejectingthe non-cosmic-ray noise and identification of signals…

Aims. Traditional star-galaxy classification techniques often rely on feature estimation from catalogues, a process susceptible to introducing inaccuracies, thereby potentially jeopardizing the classification's reliability. Certain…

Instrumentation and Methods for Astrophysics · Physics 2023-12-20 F. Stoppa , S. Bhattacharyya , R. Ruiz de Austri , P. Vreeswijk , S. Caron , G. Zaharijas , S. Bloemen , G. Principe , D. Malyshev , V. Vodeb , P. J. Groot , E. Cator , G. Nelemans

Objective: Breathing pattern variability (BPV), as a universal physiological feature, encodes rich health information. We aim to show that, a high-quality automatic sleep stage scoring based on a proper quantification of BPV extracting from…

Applications · Statistics 2023-06-06 Yu-Min Chung , Whitney K. Huang , Hau-Tieng Wu

The production of science-ready data from major solar telescopes requires expertise beyond that of the typical observer. This is a consequence of the increasing complexity of instruments and observing sequences, which require calibrations…

Solar and Stellar Astrophysics · Physics 2014-12-17 J. de la Cruz Rodríguez , M. Löfdahl , P. Sütterlin , T. Hillberg , L. Rouppe van der Voort

The 21 cm spectral line emission of atomic neutral hydrogen (HI) is one of the primary wavelengths observed in radio astronomy. However, the signal is intrinsically faint and the HI content of galaxies depends on the cosmic environment,…

Instrumentation and Methods for Astrophysics · Physics 2023-02-08 J. A. Barkai , M. A. W. Verheijen , E. T. Martínez , M. H. F. Wilkinson

This paper presents an automated machine learning framework designed to assist hydrologists in detecting anomalies in time series data generated by sensors in a research watershed in the northeastern United States critical zone. The…

Machine Learning · Computer Science 2023-12-07 Ijaz Ul Haq , Byung Suk Lee , Donna M. Rizzo , Julia N Perdrial

In order to study transient phenomena in the Universe, existing and forthcoming imaging surveys are covering wide areas of sky repeatedly over time, with a range of cadences, point spread functions, and depths. We describe here a framework…

Instrumentation and Methods for Astrophysics · Physics 2023-08-11 D. L. Shupe , F. J. Masci , R. Chary , G. Helou , A. L. Faisst , R. M. Cutri , T. Y. Brooke , J. A. Surace , K. A. Marsh

The data produced by the future space-based millihertz gravitational-wave detector LISA will require nontrivial pre-processing, which might affect the science results. It is crucial to demonstrate the feasibility of such processing…

Instrumentation and Methods for Astrophysics · Physics 2023-05-22 Jean-Baptiste Bayle , Olaf Hartwig , Marc Lilley , Aurélien Hees , Christian Chapman-Bird , Graham Woan , Peter Wolf

We present a 3-dimensional matched filtering approach for the blind search of faint emission-line sources in integral-field spectroscopic datasets. The filter is designed to account for the spectrally rapidly varying background noise due to…

Instrumentation and Methods for Astrophysics · Physics 2023-03-21 Edmund Christian Herenz

The number of main-sequence stars for which we can observe solar-like oscillations is expected to increase considerably with the short-cadence high-precision photometric observations from the NASA Kepler satellite. Because of this increase…

Solar and Stellar Astrophysics · Physics 2015-05-14 S. Hekker , A. -M Broomhall , W. J. Chaplin , Y. P. Elsworth , S. T. Fletcher , R. New , T. Arentoft , P. -O. Quirion , H. Kjeldsen