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The International Liquid Mirror Telescope (ILMT) is a 4-m aperture, zenith-pointing telescope with a field-of-view of 22', situated in the foothills of the Himalayas. The telescope operates in continuous survey mode, making it a useful…

Instrumentation and Methods for Astrophysics · Physics 2025-02-04 Kumar Pranshu , Kuntal Misra , Bhavya Ailawadhi , Monalisa Dubey , Naveen Dukiya , Sara Filali , Paul Hickson , Brajesh Kumar , Vibhore Negi , Jean Surdej

The last couple of decades have seen an emergence of transient detection facilities in various avenues of time domain astronomy which has provided us with a rich dataset of transients. The rates of these transients have implications in star…

Instrumentation and Methods for Astrophysics · Physics 2019-09-04 Deep Chatterjee , Peter E. Nugent , Patrick R. Brady , Chris Cannella , David L. Kaplan , Mansi M. Kasliwal

In March 2017, the Intermediate Palomar Transient Factory (iPTF) ceased operations. I take this occasion to review the scientific returns from iPTF and its predecessor survey, the Palomar Transient Factory (PTF), and to summarize the…

Instrumentation and Methods for Astrophysics · Physics 2019-09-04 Eric C. Bellm

Integrated sensing and communication (ISAC) is a headline feature for the forthcoming IMT-2030 and 6G releases, yet a concrete solution that fits within the established orthogonal frequency division multiplexing (OFDM) family remains open.…

Signal Processing · Electrical Eng. & Systems 2025-06-23 Hyeonho Noh , Hyeonsu Lyu , Moe Z. Win , Hyun Jong Yang

Transient detection and flux measurement via image subtraction stand at the base of time domain astronomy. Due to the varying seeing conditions, the image subtraction process is non-trivial, and existing solutions suffer from a variety of…

Instrumentation and Methods for Astrophysics · Physics 2016-10-12 Barak Zackay , Eran O. Ofek , Avishay Gal-Yam

Modern astronomical surveys, such as the Zwicky Transient Facility (ZTF), are capable of detecting thousands of transient events per year, necessitating the use of automated and scalable data analysis techniques. Recent advances in machine…

Instrumentation and Methods for Astrophysics · Physics 2025-04-17 Betty X. Hu , Avi Loeb

Machine learning algorithms are widely used in the area of malware detection. With the growth of sample amounts, training of classification algorithms becomes more and more expensive. In addition, training data sets may contain redundant or…

Cryptography and Security · Computer Science 2022-06-29 Martin Jureček , Olha Jurečková

We consider the problem of reconstructing vehicle trajectories from sparse sequences of GPS points, for which the sampling interval is between 10 seconds and 2 minutes. We introduce a new class of algorithms, called altogether path…

Artificial Intelligence · Computer Science 2015-03-19 Timothy Hunter , Pieter Abbeel , Alexandre Bayen

We propose an Iterative Detection and Decoding (IDD) scheme with Low Density Parity Check (LDPC) codes for Multiple Input Multiple Output (MIMO) systems for block-fading $F = 2$ and fast fading Rayleigh channels. An IDD receiver with soft…

Information Theory · Computer Science 2014-04-09 A. G. D. Uchoa , C. T. Healy , R. C. de Lamare , P. Li

We present a comparison of several Difference Image Analysis (DIA) techniques, in combination with Machine Learning (ML) algorithms, applied to the identification of optical transients associated with gravitational wave events. Each…

This paper is concerned with dynamic system state estimation based on a series of noisy measurement with the presence of outliers. An incremental learning assisted particle filtering (ILAPF) method is presented, which can learn the value…

Methodology · Statistics 2018-02-02 Bin Liu

The iterated posterior linearization filter (IPLF) is an algorithm for Bayesian state estimation that performs the measurement update using iterative statistical regression. The main result behind IPLF is that the posterior approximation is…

Optimization and Control · Mathematics 2018-02-19 Matti Raitoharju , Lennart Svensson , Ángel F. García-Fernández , Robert Piché

Metal-insulator transition (MIT) materials are a useful platform for emerging microelectronic, optoelectronic, and neuromorphic devices, but their discovery is hindered by the high computational cost of electronic structure modeling, the…

Coming high-cadence wide-field optical telescopes will image hundreds of thousands of sources per minute. Besides inspecting the near real-time data streams for transient and variability events, the accumulated data archive is a wealthy…

Instrumentation and Methods for Astrophysics · Physics 2018-03-20 Bart Scheers , Steven Bloemen , Hannes Mühleisen , Pim Schellart , Arjen van Elteren , Martin Kersten , Paul J. Groot

High-quality panoramic images with a Field of View (FoV) of 360{\deg} are essential for contemporary panoramic computer vision tasks. However, conventional imaging systems come with sophisticated lens designs and heavy optical components.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Qi Jiang , Shaohua Gao , Yao Gao , Kailun Yang , Zhonghua Yi , Hao Shi , Lei Sun , Kaiwei Wang

The Zwicky Transient Facility (ZTF) is a next-generation optical synoptic survey that builds on the experience and infrastructure of the Palomar Transient Factory (PTF). Using a new 47 deg$^2$ survey camera, ZTF will survey more than an…

Instrumentation and Methods for Astrophysics · Physics 2014-10-31 Eric C. Bellm

Recently, progress has been made on the Intra Pattern Copy (IPC) tool for JPEG XS, an image compression standard designed for low-latency and low-complexity coding. IPC performs wavelet-domain intra compensation predictions to reduce…

Hardware Architecture · Computer Science 2026-03-12 Qiyue Chen , Yao Li , Jie Tao , Song Chen , Li Li , Dong Liu

Digital synoptic sky surveys pose several new object classification challenges. In surveys where real-time detection and classification of transient events is a science driver, there is a need for an effective elimination of…

Astrophysics · Physics 2009-11-13 C. Donalek , A. Mahabal , S. G. Djorgovski , S. Marney , A. Drake , E. Glikman , M. J. Graham , R. Williams

Photo-realistic image restoration algorithms are typically evaluated by distortion measures (e.g., PSNR, SSIM) and by perceptual quality measures (e.g., FID, NIQE), where the desire is to attain the lowest possible distortion without…

Image and Video Processing · Electrical Eng. & Systems 2025-02-05 Guy Ohayon , Tomer Michaeli , Michael Elad