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Anomaly detection describes methods of finding abnormal states, instances or data points that differ from a normal value space. Industrial processes are a domain where predicitve models are needed for finding anomalous data instances for…

Machine Learning · Computer Science 2022-09-26 Alexander Zeiser , Bas van Stein , Thomas Bäck

We investigate how strong lensing of dusty, star-forming galaxies by foreground galaxies can be used as a probe of dark matter halo substructure. We find that spatially resolved spectroscopy of lensed sources allows dramatic improvements to…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Yashar Hezaveh , Neal Dalal , Gilbert Holder , Michael Kuhlen , Daniel Marrone , Norman Murray , Joaquin Vieira

This research addresses the growing challenge of artificial satellite trail interference in ground-based astronomical observations by developing an efficient deep learning identification method. With the proliferation of satellite…

Instrumentation and Methods for Astrophysics · Physics 2025-09-05 Hua-Jian Yu , Jia-Lei Zheng , Yuan Fang

We train a generative diffusion model (DM) to simulate ultra-relativistic heavy-ion collisions from end to end. The model takes initial entropy density profiles as input and produces two-dimensional final particle spectra, successfully…

Nuclear Theory · Physics 2025-10-14 Jing-An Sun , Li Yan , Charles Gale , Sangyong Jeon

We introduce a pipeline that performs rapid image subtraction and source selection to detect transients, with a focus on identifying gravitational wave optical counterparts using the Dark Energy Camera (DECam). In this work, we present the…

Instrumentation and Methods for Astrophysics · Physics 2024-08-27 Shenming Fu , Thomas Matheson , Aaron Meisner , Yuanyuan Zhang , Sebastián Vicencio , Destry Saul

The Cherenkov Telescope Array (CTA) will be the world's first observatory for detecting gamma-rays from astrophysical phenomena and is now in its prototyping phase with construction expected to begin in 2015/16. In this work we present the…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Cameron B. Rulten , Sam J. Nolan

Identifying neutral hydrogen (\hi) galaxies from observational data is a significant challenge in \hi\ galaxy surveys. With the advancement of observational technology, especially with the advent of large-scale telescope projects such as…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Zihao Song , Huaxi Chen , Donghui Quan , Di Li , Yinghui Zheng , Shulei Ni , Yunchuan Chen , Yun Zheng

Scientists at the Berkeley SETI Research Center are Searching for Extraterrestrial Intelligence (SETI) by a new signal detection method that converts radio signals into spectrograms through Fourier transforms and classifies signals…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Zhewei Chen , Sami Ahmed Haider

In this document we consider the problem of finding the optimal layout for the array of water Cherenkov detectors proposed by the SWGO collaboration to study very-high-energy gamma rays in the southern hemisphere. We develop a continuous…

In recent years, improvements in Deep Learning (DL) techniques towards Gravitational Wave (GW) astronomy have led to a significant rise in the development of various classification algorithms that have been successfully employed to extract…

High Energy Astrophysical Phenomena · Physics 2021-08-27 Shashwat Singh , Amitesh Singh , Ankul Prajapati , Kamlesh N Pathak

Robust and accurate sensing is of critical importance for advancing autonomous automotive systems. The need to acquire situational awareness in complex urban conditions using sensors such as radar has motivated research on power and…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Madhumitha Sakthi , Ahmed Tewfik , Marius Arvinte , Haris Vikalo

Astronomical source deblending is the process of separating the contribution of individual stars or galaxies (sources) to an image comprised of multiple, possibly overlapping sources. Astronomical sources display a wide range of sizes and…

Instrumentation and Methods for Astrophysics · Physics 2022-01-14 Ryan Hausen , Brant Robertson

About a third of the $\gamma$-ray sources detected by the Fermi Large Area Telescope (Fermi-LAT) remain unidentified, and some of these could be exotic objects such as dark matter subhalos. We present a search for these sources using…

High Energy Astrophysical Phenomena · Physics 2023-08-02 Anja Butter , Michael Krämer , Silvia Manconi , Kathrin Nippel

In the context of atmospheric shower arrays designed for $\gamma$-ray astronomy and in the context of the ALTO project, we present: a study of the impact of heavier nuclei in the cosmic-ray background on the estimated $\gamma$-ray detection…

Instrumentation and Methods for Astrophysics · Physics 2023-03-28 M. Punch , M. Senniappan , Y. Becherini , G. Kukec Mezek , S. Thoudam , T. Bylund , J. -P. Ernenwein

A deep learning approach based on big data is proposed to locate broadband acoustic sources using a single hydrophone in ocean waveguides with uncertain bottom parameters. Several 50-layer residual neural networks, trained on a huge number…

Atmospheric and Oceanic Physics · Physics 2019-07-19 Haiqiang Niu , Zaixiao Gong , Emma Ozanich , Peter Gerstoft , Haibin Wang , Zhenglin Li

The project involved the development of a precision radioactive Source-Positioning System to enable the absolute characterization of a gamma-ray Detector-Development Platform at the Division of Nuclear Physics at Lund University in…

Instrumentation and Detectors · Physics 2017-06-16 Mohamad Akkawi

Landslides pose severe threats to infrastructure, economies, and human lives, necessitating accurate detection and predictive mapping across diverse geographic regions. With advancements in deep learning and remote sensing, automated…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Rahul A. Burange , Harsh K. Shinde , Omkar Mutyalwar

Due to privacy issues and limited amount of publicly available labeled datasets in the domain of medical imaging, we propose an image generation pipeline to synthesize 3D echocardiographic images with corresponding ground truth labels, to…

Image and Video Processing · Electrical Eng. & Systems 2024-03-11 Cristiana Tiago , Andrew Gilbert , Ahmed S. Beela , Svein Arne Aase , Sten Roar Snare , Jurica Sprem

With the advent of new spectroscopic surveys from ground and space, observing up to hundreds of millions of galaxies, spectra classification will become overwhelming for standard analysis techniques. To prepare for this challenge, we…

Astrophysics of Galaxies · Physics 2022-06-08 Fucheng Zhong , Rui Li , Nicola R. Napolitano

Deep Learning approaches for real, large, and complex scientific data sets can be very challenging to design. In this work, we present a complete search for a finely-tuned and efficiently scaled deep learning classifier to identify usable…

Machine Learning · Computer Science 2020-10-16 Vincent Dumont , Verónica Rodríguez Tribaldos , Jonathan Ajo-Franklin , Kesheng Wu