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Pulsars have proven instrumental in exploring a wide variety of physics. Pulsars at low radio frequencies is crucial to further our understanding of spectral properties and emission mechanisms.The Murchison Widefield Array Voltage Capture…

高能天体物理现象 · 物理学 2023-01-11 S. Sett , N. D. R. Bhat , M. Sokolowski , E. Lenc

We describe a new and computationally efficient Bayesian methodology for inferring species trees and demographics from unlinked binary markers. Likelihood calculations are carried out using diffusion models of allele frequency dynamics…

种群与进化 · 定量生物学 2019-09-18 Marnus Stoltz , Boris Bauemer , Remco Bouckaert , Colin Fox , Gordon Hiscott , David Bryant

In this paper we introduce a reliable, fully automated and fast algorithm to detect extended extragalactic radio sources (cluster of galaxies, filaments) in existing and forthcoming surveys (like LOFAR and SKA). The proposed solution is…

天体物理仪器与方法 · 物理学 2018-09-11 Claudio Gheller , Franco Vazza , Annalisa Bonafede

Several rapid parameter estimation methods have recently been advanced to deal with the computational challenges of the problem of Bayesian inference of the properties of compact binary sources detected in the upcoming science runs of the…

广义相对论与量子宇宙学 · 物理学 2023-12-05 Lalit Pathak , Amit Reza , Anand S. Sengupta

Detecting objects in aerial images is challenging for at least two reasons: (1) target objects like pedestrians are very small in pixels, making them hardly distinguished from surrounding background; and (2) targets are in general sparsely…

计算机视觉与模式识别 · 计算机科学 2019-08-28 Fan Yang , Heng Fan , Peng Chu , Erik Blasch , Haibin Ling

Moving objects leave extended tracks in optical images acquired with a telescope that is tracking stars or other targets. By searching images for these tracks, one can obtain statistics on populations of space debris in Earth orbit. The…

空间物理 · 物理学 2018-11-14 P. Hickson

Object tracking is one of the fundamental problems in visual recognition tasks and has achieved significant improvements in recent years. The achievements often come with the price of enormous hardware consumption and expensive labor effort…

计算机视觉与模式识别 · 计算机科学 2022-05-06 Yan Shen , Zhanghexuan Ji , Chunwei Ma , Mingchen Gao

Object detection is a crucial task for autonomous driving. In addition to requiring high accuracy to ensure safety, object detection for autonomous driving also requires real-time inference speed to guarantee prompt vehicle control, as well…

计算机视觉与模式识别 · 计算机科学 2019-06-12 Bichen Wu , Alvin Wan , Forrest Iandola , Peter H. Jin , Kurt Keutzer

Selecting interpretable feature sets in underdetermined ($n \ll p$) and highly correlated regimes constitutes a fundamental challenge in data science, particularly when analyzing physical measurements. In such settings, multiple distinct…

机器学习 · 计算机科学 2026-02-10 Kateřina Henclová , Václav Šmídl

The analysis of high spectral resolution spectroscopic and spectropolarimetric observations constitute a very powerful way of inferring the dynamical, thermodynamical, and magnetic properties of distant objects. However, these techniques…

太阳与恒星天体物理 · 物理学 2015-06-11 A. Asensio Ramos , R. Manso Sainz

This paper proposes new methods for analyzing dynamic images registered by multichannel, highly sensitive detectors with low spatial but high temporal resolution. The principal characteristic of the approach is the absence of factorization…

天体物理仪器与方法 · 物理学 2024-10-10 S. A. Sharakin , R. E. Saraev

Despite over three hundred years of effort, no solutions exist for predicting when a general planetary configuration will become unstable. We introduce a deep learning architecture to push forward this problem for compact systems. While…

地球与行星天体物理 · 物理学 2021-10-20 Miles Cranmer , Daniel Tamayo , Hanno Rein , Peter Battaglia , Samuel Hadden , Philip J. Armitage , Shirley Ho , David N. Spergel

The low resolution of objects of interest in aerial images makes pedestrian detection and action detection extremely challenging tasks. Furthermore, using deep convolutional neural networks to process large images can be demanding in terms…

计算机视觉与模式识别 · 计算机科学 2018-07-17 Amir Soleimani , Nasser M. Nasrabadi

Frame-level micro- and macro-expression spotting methods require time-consuming frame-by-frame observation during annotation. Meanwhile, video-level spotting lacks sufficient information about the location and number of expressions during…

计算机视觉与模式识别 · 计算机科学 2024-03-22 Wang-Wang Yu , Xian-Shi Zhang , Fu-Ya Luo , Yijun Cao , Kai-Fu Yang , Hong-Mei Yan , Yong-Jie Li

Classification of an object behind a random and unknown scattering medium sets a challenging task for computational imaging and machine vision fields. Recent deep learning-based approaches demonstrated the classification of objects using…

光学 · 物理学 2023-03-10 Yi Luo , Bijie Bai , Yuhang Li , Ege Cetintas , Aydogan Ozcan

The aim of the present dissertation is to address distributed tracking over a network of heterogeneous and geographically dispersed nodes (or agents) with sensing, communication and processing capabilities. Tracking is carried out in the…

统计方法学 · 统计学 2015-08-19 Claudio Fantacci

Accurately localizing and segmenting obscured objects from faint light patterns beyond the field of view is highly challenging due to multiple scattering and medium-induced perturbations. Most existing methods, based on real-valued modeling…

计算机视觉与模式识别 · 计算机科学 2025-12-01 Zhiwen Zheng , Yiwei Ouyang , Zhao Huang , Tao Zhang , Xiaoshuai Zhang , Huiyu Zhou , Wenwen Tang , Shaowei Jiang , Jin Liu , Xingru Huang

Sparse convex clustering is to cluster observations and conduct variable selection simultaneously in the framework of convex clustering. Although a weighted $L_1$ norm is usually employed for the regularization term in sparse convex…

机器学习 · 统计学 2020-05-27 Kaito Shimamura , Shuichi Kawano

In this paper we introduce a new linear filtering technique, the so-called matrix filters, that maximizes the signal-to-interference ratio of compact sources of unknown intensity embedded in a set of images by taking into account the…

天体物理学 · 物理学 2009-11-13 D. Herranz , J. L. Sanz

Galaxy morphological classification is a fundamental aspect of galaxy formation and evolution studies. Various machine learning tools have been developed for automated pipeline analysis of large-scale surveys, enabling a fast search for…

天体物理仪器与方法 · 物理学 2022-06-15 Yash Gondhalekar , Rafael S. de Souza , Ana L. Chies-Santos