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CRUSH is an approach to data analysis under noise interference, developed specifically for submillimeter imaging arrays. The method uses an iterated sequence of statistical estimators to separate source and noise signals. Its filtering…

天体物理学 · 物理学 2014-11-18 A. Kovacs

We present the first public version of SImMER, an open-source Python reduction pipeline for astronomical images of point sources. Current capabilities include dark-subtraction, flat-fielding, sky-subtraction, image registration, FWHM…

天体物理仪器与方法 · 物理学 2022-12-28 Arjun B. Savel , Lea A. Hirsch , Holden Gill , Courtney D. Dressing , David R. Ciardi

LLM serving platforms are increasingly deployed as multi-model cloud systems, where user demand is often long-tailed: a few popular large models receive most requests, while many smaller tail models remain underutilized. We propose…

分布式、并行与集群计算 · 计算机科学 2026-05-13 Jincheng Xie , Yawen Ling , Qi Xiao , Feiyu Zhang , Zhongyi Huang , Wen Hu , Yu Zheng

While recent methods for motion and stereo estimation recover an unprecedented amount of details, such highly detailed structures are neither adequately reflected in the data of existing benchmarks nor their evaluation methodology. Hence,…

计算机视觉与模式识别 · 计算机科学 2023-03-06 Lukas Mehl , Jenny Schmalfuss , Azin Jahedi , Yaroslava Nalivayko , Andrés Bruhn

The new planet finder for the Very Large Telescope (VLT), the Spectro-Polarimetric High-contrast Exoplanet REsearch (SPHERE), just had its first light in Paranal. A dedicated instrument for the direct detection of planets, SPHERE, is…

For high-contrast imaging (HCI) systems, such as VLT/SPHERE, the performance of the system at small angular separations is contaminated by the wind-driven halo in the science image. This halo is a result of the servo-lag error in the…

天体物理仪器与方法 · 物理学 2020-04-22 M. A. M. van Kooten , Niek Doelman , Matthew Kenworthy

We aim at finding the value of an explanatory variable, through its expression in a large data-vector, without knowing the link function between the explanatory variable and the data-space. Sliced Inverse Regression (SIR) method allows for…

天体物理仪器与方法 · 物理学 2017-07-03 V. Watson , JF. Trouilhet , F. Paletou , M. Gebran

Due to the ubiquity of spatial data applications and the large amounts of spatial data that these applications generate and process, there is a pressing need for scalable spatial query processing. In this paper, we present new techniques…

数据库 · 计算机科学 2019-07-17 Mingjie Tang , Yongyang Yu , Walid G. Aref , Ahmed R. Mahmood , Qutaibah M. Malluhi , Mourad Ouzzani

In Multiple-Input Multiple-Output (MIMO) systems, Sphere Decoding (SD) can achieve performance equivalent to full search Maximum Likelihood (ML) decoding, with reduced complexity. Several researchers reported techniques that reduce the…

信息论 · 计算机科学 2015-03-13 Boyu Li , Ender Ayanoglu

In many real-world problems, we are dealing with collections of high-dimensional data, such as images, videos, text and web documents, DNA microarray data, and more. Often, high-dimensional data lie close to low-dimensional structures…

计算机视觉与模式识别 · 计算机科学 2013-02-06 Ehsan Elhamifar , Rene Vidal

Light field (LF) image super-resolution (SR) aims at reconstructing high-resolution LF images from their low-resolution counterparts. Although CNN-based methods have achieved remarkable performance in LF image SR, these methods cannot fully…

计算机视觉与模式识别 · 计算机科学 2022-01-31 Zhengyu Liang , Yingqian Wang , Longguang Wang , Jungang Yang , Shilin Zhou

For the accurate representation and reconstruction of band-limited signals on the sphere, an optimal-dimensionality sampling scheme has been recently proposed which requires the optimal number of samples equal to the number of degrees of…

信息论 · 计算机科学 2017-09-11 Wajeeha Nafees , Zubair Khalid , Rodney A. Kennedy , Jason D. McEwen

When inverting solar spectra, image degradation effects that are present in the data are usually approximated or not considered. We develop a data reduction method that takes these issues into account and minimizes the resulting errors. By…

天体物理仪器与方法 · 物理学 2015-06-11 M. van Noort

During the years 2000 and 2001 the HERA machine and the H1 experiment performed substantial luminosity upgrades. To cope with the increased demands on data handling an effort was made to redesign and modernize the analysis software. Main…

数据分析、统计与概率 · 物理学 2007-05-23 M. Peez

The search for extrasolar planets has driven rapid advances in instrumentation, resulting in cameras such as SPHERE at the VLT, GPI at Gemini South and SCExAO at Subaru, capable of achieving very high contrast ($\sim10^{6}$) around bright…

太阳与恒星天体物理 · 物理学 2020-03-18 P. Scicluna , F. Kemper , R. Siebenmorgen , R. Wesson , J. A. D. L. Blommaert , S. Wolf

In this paper, we propose a scalable image compression scheme, including the base layer for feature representation and enhancement layer for texture representation. More specifically, the base layer is designed as the deep learning feature…

计算机视觉与模式识别 · 计算机科学 2019-08-27 Shurun Wang , Shiqi Wang , Xinfeng Zhang , Shanshe Wang , Siwei Ma , Wen Gao

Support Vector Machines (SVM), a popular machine learning technique, has been applied to a wide range of domains such as science, finance, and social networks for supervised learning. Whether it is identifying high-risk patients by…

分布式、并行与集群计算 · 计算机科学 2014-06-20 Jeyanthi Narasimhan , Abhinav Vishnu , Lawrence Holder , Adolfy Hoisie

Myocardial perfusion imaging using SPECT is widely utilized to diagnose coronary artery diseases, but image quality can be negatively affected in low-dose and few-view acquisition settings. Although various deep learning methods have been…

In recent years, spectral clustering has become a standard method for data analysis used in a broad range of applications. In this paper we propose a new class of algorithms for multiway spectral clustering based on optimization of a…

机器学习 · 计算机科学 2016-05-05 James Voss , Mikhail Belkin , Luis Rademacher

During the past decade, state-of-the-art planet-finder instruments like SPHERE@VLT, coupling coronagraphic devices and extreme adaptive optics systems, unveiled, thanks to large surveys, around 20 planetary mass companions at semi-major…

地球与行星天体物理 · 物理学 2025-05-14 A. Chomez , P. Delorme , A. -M. Lagrange , R. Gratton , O. Flasseur , G. Chauvin , M. Langlois , J. Mazoyer , A. Zurlo , S. Desidera , D. Mesa , M. Bonnefoy , M. Feldt , J. Hagelberg , M. Meyer , A. Vigan , C. Ginski , M. Kenworthy , D. Albert , S. Bergeon , J. -L. Beuzit , B. Biller , T. Bhowmik , A. Boccaletti , M. Bonavita , W. Brandner , F. Cantalloube , A. Cheetham , V. D'Orazi , C. Dominik , C. Fontanive , R. Galicher , Th. Henning , M. Janson , Q. Kral , E. Lagadec , C. Lazzoni , H. Le Coroller , R. Ligi , A. -L. Maire , G. -D. Marleau , F. Menard , S. Messina , N. Meunier , C. Mordasini , C. Moutou , A. Müller , C. Perrot , M. Samland , H. M. Schmid , T. Schmidt , V. Squicciarini , E. Sissa , M. Turatto , S. Udry , L. Abe , J. Antichi , R. Asensio-Torres , A. Baruffolo , P. Baudoz , J. Baudrand , A. Bazzon , P. Blanchard , A. J. Bohn , S. Brown Sevilla , M. Carbillet , M. Carle , E. Cascone , J. Charton , R. Claudi , A. Costille , V. De Caprio , A. Delboulbe , K. Dohlen , N. Engler , D. Fantinel , P. Feautrier , T. Fusco , P. Gigan , J. H. Girard , E. Giro , D. Gisler , L. Gluck , C. Gry , N. Hubin , E. Hugot , M. Jaquet , M. Kasper , D. Le Mignant , M. Llored , F. Madec , Y. Magnard , P. Martinez , D. Maurel , O. Möller-Nilsson , D. Mouillet , T. Moulin , A. Origné , A. Pavlov , D. Perret , C. Petit , J. Pragt , P. Puget , P. Rabou , J. Ramos , E. L. Rickman , F. Rigal , S. Rochat , R. Roelfsema , G. Rousset , A. Roux , B. Salasnich , J. -F. Sauvage , A. Sevin , C. Soenke , E. Stadler , M. Suarez , Z. Wahhaj , L. Weber , F. Wildi