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X-ray binary systems consist of a companion star and a compact object in close orbit. Thanks to their copious X-ray emission, these objects have been studied in detail using X-ray spectroscopy and timing. The inclination of these systems is…

Matrix completion is a classical problem in data science wherein one attempts to reconstruct a low-rank matrix while only observing some subset of the entries. Previous authors have phrased this problem as a nuclear norm minimization…

机器学习 · 计算机科学 2019-04-19 Christian Parkinson , Kevin Huynh , Deanna Needell

Binary optimization is a powerful tool for modeling combinatorial problems, yet scalable and theoretically sound solution methods remain elusive. Conventional solvers often rely on heuristic strategies with weak guarantees or struggle with…

最优化与控制 · 数学 2026-05-12 Wenbo Liu , Akang Wang , Dun Ma , Hongyi Jiang , Jianghua Wu , Wenguo Yang

Matrix form data sets arise in many areas, so there are lots of works about the matrix regression models. One special model of these models is the adaptive nuclear norm regularized trace regression, which has been proven have good…

统计方法学 · 统计学 2024-04-16 Pan Shang , Lingchen Kong

We present our models of the effect of binaries on high-resolution spectroscopic surveys. We want to determine how many binary stars will be observed, whether unresolved binaries will contaminate measurements of chemical abundances, and how…

太阳与恒星天体物理 · 物理学 2018-08-22 Edita Stonkute , Ross P. Church , Sofia Feltzing , Jennifer A. Johnson

Mathematical programming is a branch of applied mathematics and has recently been used to derive new decoding approaches, challenging established but often heuristic algorithms based on iterative message passing. Concepts from mathematical…

信息论 · 计算机科学 2014-04-29 Michael Helmling , Stefan Ruzika , Akin Tanatmis

Matrix sketching is aimed at finding close approximations of a matrix by factors of much smaller dimensions, which has important applications in optimization and machine learning. Given a matrix A of size m by n, state-of-the-art randomized…

机器学习 · 计算机科学 2016-07-28 Kai Zhang , Chuanren Liu , Jie Zhang , Hui Xiong , Eric Xing , Jieping Ye

Blind ptychography is a phase retrieval method using multiple coded diffraction patterns from different, overlapping parts of the unknown extended object illuminated with an unknown window function. The window function is also known as the…

图像与视频处理 · 电气工程与系统科学 2018-12-04 Albert Fannjiang

Common imaging techniques for detecting structural defects typically require sampling at more than twice the spatial frequency to achieve a target resolution. This study introduces a novel framework for imaging structural defects using…

信号处理 · 电气工程与系统科学 2024-12-03 Wei-Chen Li , Chun-Yeon Lin

A common remark at conferences and meetings has been: "One can fit any light curve with binary lens models because of the large number of parameters!" It is especially tempting to claim that some of the possible binary events in the…

天体物理学 · 物理学 2009-10-28 Ann B. Saust

Doppler tomography is a method to compute the emissivity distribution within the co-rotating frames of binary stars from observations of their emission line profiles at multiple orbital phases. A key assumption of the method as it is…

太阳与恒星天体物理 · 物理学 2021-12-08 T. R. Marsh

Individual stars located near the caustics of galaxy clusters can undergo extreme magnification when crossing micro-caustics, rendering them observable even at cosmological distances. Though most massive stars are likely reside in binary…

星系天体物理 · 物理学 2025-03-10 Wenwen Zheng , Xiaoting Fu , Yang Chen , Xuefei Chen , Yanjun Guo , Xuechun Chen , Huanyuan Shan , Guoliang Li

The statistical properties of double main sequence (MS) binaries are very important for binary evolution and binary population synthesis. To obtain these properties, we need to identify these MS binaries. In this paper, we have developed a…

太阳与恒星天体物理 · 物理学 2025-04-04 Jia-jia Li , Jin-liang Wang , Kai-fan Ji , Chao Liu , Hai-liang Chen , Zhan-wen Han , Xue-fei Chen

Optical sections of the cornea are obtained by illumination with a collimated beam expanded in a fan shape by a small rotary cylindrical lens. The light diffused from the cornea is observed by two cameras and processed in order to yield the…

医学物理 · 物理学 2007-05-23 Jose B. Almeida , Sandra Franco

The current modelling of single microlensing light curves neglects the possibility that only a fraction of the light is due to the lensed star, the remaining being due to a close, unresolved blend, which may be related or unrelated to the…

天体物理学 · 物理学 2009-10-30 Przemyslaw Wozniak , Bohdan Paczynski

Statistics of orbital parameters of binary stars as well as statistics of their physical characteristics bear traces of star formation history. However, statistical investigations of binaries are complicated by lacking or incomplete…

太阳与恒星天体物理 · 物理学 2017-01-03 D. Kovaleva , O. Malkov , L. Yungelson , D. Chulkov

Investigation of well-motivated parameter space in the theories of Beyond the Standard Model (BSM) plays an important role in new physics discoveries. However, a large-scale exploration of models with multi-parameter or equivalent solutions…

高能物理 - 唯象学 · 物理学 2019-04-09 Jie Ren , Lei Wu , Jin Min Yang , Jun Zhao

Summary. A modified version of the two-slit experiment is proposed in which the moveable detector/counter used to obtain the fringe distribution by counting single photons at different positions on the screen plane is replaced with a mirror…

量子物理 · 物理学 2007-05-23 G. Sampath

In parallel magnetic resonance imaging (pMRI), to find a joint solution for the image and coil sensitivity functions is a nonlinear and nonconvex problem. A class of algorithms reconstruct sensitivity encoded images of the coils first…

医学物理 · 物理学 2014-08-05 Cishen Zhang , Ifat-Al Baqee

We propose a simple technique that, if combined with algorithms for computing functions of triangular matrices, can make them more efficient. Basically, such a technique consists in a specific scaling similarity transformation that reduces…

数值分析 · 数学 2021-11-18 João R. Cardoso , Amir Sadeghi