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With the exponential growth of time-domain surveys, the volume of light curves has increased rapidly. However, many survey projects, such as Gaia, still rely on offline batch-processing workflows in which data are calibrated, merged, and…

Instrumentation and Methods for Astrophysics · Physics 2025-11-25 Xinghang Yu , Ce Yu , Zeguang Shao , Bin Yang

The laborious process of labeling data often bottlenecks projects that aim to leverage the power of supervised machine learning. Active Learning (AL) has been established as a technique to ameliorate this condition through an iterative…

Machine Learning · Computer Science 2022-03-18 Trent J. Bradberry , Christopher H. Hase , LeAnna Kent , Joel A. Góngora

In recent years, impressive performance of deep learning technology has been recognized in Synthetic Aperture Radar (SAR) Automatic Target Recognition (ATR). Since a large amount of annotated data is required in this technique, it poses a…

Computer Vision and Pattern Recognition · Computer Science 2024-08-08 Yikui Zhai , Wenlve Zhou , Bing Sun , Jingwen Li , Qirui Ke , Zilu Ying , Junying Gan , Chaoyun Mai , Ruggero Donida Labati , Vincenzo Piuri , Fabio Scotti

The ALICE experiment at CERN is preparing for a major upgrade for the third phase of data taking run (Run 3), when the high luminosity phase of the Large Hadron Collider (LHC) starts. The increase in the beam luminosity will result in high…

Instrumentation and Detectors · Physics 2019-02-20 Jubin Mitra , Erno David , Eduardo Mendez , Shuaib Ahmad Khan , Tivadar Kiss , Sophie Baron , Alex Kluge , Tapan Nayak

This study presents an advanced system for detecting blue lights on emergency vehicles, developed using ABLDataset, a curated dataset that includes images of European emergency vehicles under various climatic and geographic conditions. The…

Computer Vision and Pattern Recognition · Computer Science 2026-03-06 Francisco Vacalebri-Lloret , Lucas Banchero , Jose J. Lopez , Jose M. Mossi

(Abridged) A new method is presented to identify transient candidates in large-scale surveys based on the variability pattern in their light curves. The method is based on the Abbe value, that estimates the smoothness of a light curve, and…

Instrumentation and Methods for Astrophysics · Physics 2014-09-05 Nami Mowlavi

Context. To date, three nuclear transients have been associated with high-energy neutrino events. These transients are generally thought to be powered by tidal disruptions of stars (TDEs) by massive black holes. However, AT2019aalc, hosted…

AGILE is a space mission launched in 2007 to study X-ray and gamma-ray astronomy. The AGILE team developed real-time analysis pipelines to detect transient phenomena such as Gamma-Ray Bursts (GRBs) and to react to external science alerts…

Instrumentation and Methods for Astrophysics · Physics 2023-02-22 N. Parmiggiani , A. Bulgarelli , A. Ursi , M. Tavani , A. Macaluso , A. Di Piano , V. Fioretti , L. Baroncelli , A. Addis , C. Pittori

Tidal disruption events (TDEs) are powerful probes of supermassive black hole (SMBH) properties and accretion physics. The existing light curve fitting tools assume that the disrupted stars are on parabolic orbits, which may introduce…

High Energy Astrophysical Phenomena · Physics 2026-03-27 Shiyan Zhong , Chenxi Shang , Xiaowei Liu

In view of Run 4 at the LHC, presently scheduled from 2029 onwards, ALICE is pursuing several upgrades to further extend its physics reach. In order to improve heavy-flavor hadron and dielectron measurements which rely on secondary…

Instrumentation and Detectors · Physics 2022-10-31 A. Ferretti

The increasing data rates in modern high-energy physics experiments such as ALICE at the LHC and the upcoming ePIC experiment at the Electron-Ion Collider (EIC) present significant challenges in real-time event selection and data storage.…

High Energy Physics - Experiment · Physics 2025-06-24 Simone Ragoni , Janet Seger , Christopher Anson , David Tlusty

Tidal disruption events (TDEs) occur when a star orbiting a massive black hole is sufficiently close to be tidally ripped apart by the black hole. AT 2022cmc is the first relativistic TDE that was observed (and discovered) as an optically…

High Energy Astrophysical Phenomena · Physics 2023-02-08 Aleksandar Cikota , Giorgos Leloudas , Mattia Bulla , Lixin Dai , Justyn Maund , Igor Andreoni

The rates and properties of tidal disruption events (TDEs) provide valuable insights into their host galaxy central stellar densities and the demographics of their central supermassive black holes (SMBHs). TDEs have been observed only at…

Federated learning (FL) enables collaborative model training without exposing clients' private data, but its deployment is often constrained by the communication cost of transmitting gradients between clients and the central server,…

Machine Learning · Computer Science 2025-11-11 Zhijing Ye , Sheng Di , Jiamin Wang , Zhiqing Zhong , Zhaorui Zhang , Xiaodong Yu

There has been profound progress in visual saliency thanks to the deep learning architectures, however, there still exist three major challenges that hinder the detection performance for scenes with complex compositions, multiple salient…

Computer Vision and Pattern Recognition · Computer Science 2017-08-16 Jing Zhang , Yuchao Dai , Fatih Porikli , Mingyi He

Over the past decade wide-field optical time-domain surveys have increased the discovery rate of transients to the point that $\lesssim 10\%$ are being spectroscopically classified. Despite this, these surveys have enabled the discovery of…

High Energy Astrophysical Phenomena · Physics 2020-12-02 Sebastian Gomez , Edo Berger , Peter K. Blanchard , Griffin Hosseinzadeh , Matt Nicholl , V. Ashley Villar , Yao Yin

State-of-the-art text classification models are becoming increasingly reliant on deep neural networks (DNNs). Due to their black-box nature, faithful and robust explanation methods need to accompany classifiers for deployment in real-life…

Machine Learning · Computer Science 2022-06-08 Adam Ivankay , Ivan Girardi , Chiara Marchiori , Pascal Frossard

The ATLAS Transition Radiation Tracker (TRT) is the outermost of the three sub-systems of the ATLAS Inner Detector at the Large Hadron Collider at CERN. In addition to its tracking capabilities, the TRT provides particle identification…

Instrumentation and Detectors · Physics 2019-08-13 E. Hines

Anomaly detection underpins critical applications from network security and intrusion detection to fraud prevention, where recognizing aberrant patterns rapidly is indispensable. Progress in this area is routinely impeded by two obstacles:…

Machine Learning · Computer Science 2025-09-09 Jiaju Miao , Wei Zhu

We present and analyse a new tidal disruption event (TDE), AT2017eqx at redshift z=0.1089, discovered by Pan-STARRS and ATLAS. The position of the transient is consistent with the nucleus of its host galaxy; it peaks at a luminosity of $L…

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