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Properties of the recently reported homogeneous Hilbert curves are deduced and reported. The nature of the affine transformations involved in the construction of the Hilbert curves is explored. The analytical representation of proper and…

代数几何 · 数学 2013-11-13 E. Estevez-Rams , I. Brito-Reyes

We consider the problem of extracting curve skeletons of three-dimensional, elongated objects given a noisy surface, which has applications in agricultural contexts such as extracting the branching structure of plants. We describe an…

计算机视觉与模式识别 · 计算机科学 2018-03-20 Amy Tabb , Henry Medeiros

E-graphs are a data structure that compactly represents equivalent expressions. They are constructed via the repeated application of rewrite rules. Often in practical applications, conditional rewrite rules are crucial, but their…

数据结构与算法 · 计算机科学 2023-08-16 Samuel Coward , George A. Constantinides , Theo Drane

An approach to calculate radiative corrections to unpolarized cross section of semi-inclusive electroproduction is developed. An explicit formulae for the lowest order QED radiative correction are presented. Detailed numerical analysis is…

高能物理 - 唯象学 · 物理学 2011-09-13 I. Akushevich , N. Shumeiko , A. Soroko

The last decade has witnessed a rapid growth of the field of exoplanet discovery and characterisation. However, several big challenges remain, many of which could be addressed using machine learning methodology. For instance, the most…

Measuring the brightness of the night sky has become an increasingly important topic in recent years, as artificial lights and their scattering by the Earths atmosphere continue spreading around the globe. Several instruments and techniques…

This paper presents a follow-up to previous work on correcting PSF-induced Doppler artifacts in observations by the SPICE spectrograph on Solar Orbiter. In a previous paper, we demonstrated correction of these artifacts in the $y-\lambda$…

太阳与恒星天体物理 · 物理学 2026-02-11 J. E. Plowman , D. M. Hassler , M. E. Molnar , A. K. Shrivastav , T. Varesano , F. Auchère , A. Fludra , T. A. Kucera , T. J. Wang , Y. Zhu

A generalization of the Gram-Schmidt procedure is achieved by providing equations for updating and downdating oblique projectors. The work is motivated by the problem of adaptive signal representation outside the orthogonal basis setting.…

泛函分析 · 数学 2009-11-11 Laura Rebollo-Neira

We introduce GMTHRASHpy, a Python-based application to do forward convolution fits of crossed molecular beams experiments. The code is designed to be easy-to-use and widely-available, so as to be of value to anyone wanting to reproduce data…

化学物理 · 物理学 2025-10-14 Kazuumi Fujioka , Rui Sun

We introduce a method to speed up training by 2x and inference by 3x in deep neural networks using structured pruning applied before training. Unlike previous works on pruning before training which prune individual weights, our work…

机器学习 · 计算机科学 2020-07-02 Joost van Amersfoort , Milad Alizadeh , Sebastian Farquhar , Nicholas Lane , Yarin Gal

Spectral lightcurves consisting of time series single-pixel spectral measurements of spacecraft are used to infer the spacecraft's attitude and rotation. Two methods are used. One based on numerical optimisation of a regularised least…

信号处理 · 电气工程与系统科学 2024-01-12 Simão da Graça Marto , Massimiliano Vasile , Andrew Campbell , Paul Murray , Stephen Marshall , Vasili Savitski

Tools for computing detailed optically thick spectral line profiles out of local thermodynamic equilibrium have always been focused on speed, due to the large computational effort involved. With the Lightweaver framework, we have produced a…

天体物理仪器与方法 · 物理学 2021-08-18 Christopher M J Osborne , Ivan Milić

This paper is to introduce an online tool for the prediction of exoplanet transit light curves. Small telescopes can readily capture exoplanet transits under good weather conditions when the combination of a bright star and a large…

地球与行星天体物理 · 物理学 2019-06-26 Peter Beck , Luke Robson , Mark Gallaway , Hugh R. A. Jones , David Campbell

This paper presents a generalized technology of extraction of explicit knowledge from data. The main ideas are 1) maximal reduction of network complexity (not only removal of neurons or synapses, but removal all the unnecessary elements and…

凝聚态物理 · 物理学 2007-05-23 A. N. Gorban , Eu. M. Mirkes , V. G. Tsaregorodtsev

Visual counterfactual explanations identify modifications to an image that would change the prediction of a classifier. We propose a set of techniques based on generative models (VAE) and a classifier ensemble directly trained in the latent…

计算机视觉与模式识别 · 计算机科学 2022-11-29 Claire Theobald , Frédéric Pennerath , Brieuc Conan-Guez , Miguel Couceiro , Amedeo Napoli

We study the set of all decompositions (clusterings) of a graph through its characterization as a set of lifted multicuts. This leads us to practically relevant insights related to the definition of a class of decompositions by must-join…

离散数学 · 计算机科学 2017-06-09 Andrea Horňáková , Jan-Hendrik Lange , Bjoern Andres

When performing radio detection of ultra-high energy astroparticles, the planar wavefront model is often used as a first step to evaluate the arrival direction of primary particles. This model estimates the direction by adjusting the…

天体物理仪器与方法 · 物理学 2025-03-28 Arsène Ferrière , Simon Prunet , Aurélien Benoit-Lévy , Marion Guelfand , Kumiko Kotera , Matías Tueros

While multislice electron ptychography can provide thermal-vibration limited resolution and 3D information, it relies on the proper selection of many intertwined experimental and computational parameters. Here, we outline a theoretical…

材料科学 · 物理学 2023-11-28 Colin Gilgenbach , Xi Chen , James M. LeBeau

Shape-based regularization has proven to be a useful method for delineating objects within noisy images where one has prior knowledge of the shape of the targeted object. When a collection of possible shapes is available, the specification…

计算机视觉与模式识别 · 计算机科学 2014-05-05 Joshua C. Chang , Tom Chou

We introduce a variational approach for extracting curves between a list of possible endpoints, based on the discretization of an energy and Smirnov's decomposition theorem for vector fields. It is used to design a bi-level minimization…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Majid Arthaud , Antonin Chambolle , Vincent Duval