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We present results from a preregistered and crowdsourced user study where we asked members of the general population to determine whether two samples represented using different forms of data visualizations are drawn from the same or…

人机交互 · 计算机科学 2023-09-25 Eric Newburger , Niklas Elmqvist

Observations of millisecond pulsars (MSPs) at low radio frequencies play an important role in understanding the Galactic pulsar population and characterising both their emission properties and the effects of the ionised interstellar medium…

X-ray polarization observations of pulsar wind nebulae (PWNe) provide crucial insights into magnetic field structures and particle acceleration mechanisms. While the Imaging X-ray Polarimetry Explorer (IXPE) has made significant…

高能天体物理现象 · 物理学 2026-03-24 Kuan Liu , Fei Xie , Ming-Yu Ge , Wei Deng , En-Wei Liang

A large body of work has been devoted to defining and identifying clusters or communities in social and information networks. We explore from a novel perspective several questions related to identifying meaningful communities in large…

数据结构与算法 · 计算机科学 2008-10-13 Jure Leskovec , Kevin J. Lang , Anirban Dasgupta , Michael W. Mahoney

Understanding pattern formation in crossing pedestrian flows is essential for analyzing and managing high-density crowd dynamics in urban environments. This study presents two complementary methodological approaches to detect and…

物理与社会 · 物理学 2025-04-24 Piotr Nyczka , Pratik Mullick

Pulsars have long been studied in the electromagnetic spectrum. Their environments are rich in high-energy cosmic-ray electrons and positrons likely enriching the interstellar medium with such particles. In this work we use recent…

高能天体物理现象 · 物理学 2022-01-26 Ilias Cholis , Iason Krommydas

Persistence diagrams (PD)s play a central role in topological data analysis. This analysis requires computing distances among such diagrams such as the $1$-Wasserstein distance. Accurate computation of these PD distances for large data sets…

计算几何 · 计算机科学 2025-05-13 Tamal K. Dey , Simon Zhang

Trajectory prediction is a fundamental and challenging task for numerous applications, such as autonomous driving and intelligent robots. Currently, most of existing work treat the pedestrian trajectory as a series of fixed two-dimensional…

计算机视觉与模式识别 · 计算机科学 2021-03-17 Pei Lv , Hui Wei , Tianxin Gu , Yuzhen Zhang , Xiaoheng Jiang , Bing Zhou , Mingliang Xu

In this paper, which is the second in a series of papers, we analyse what parameters can determine the width of the radio pulsar 'death valley' in the $P$-${\dot P}$ diagram. Using exact expression for the maximum potential drop, which can…

高能天体物理现象 · 物理学 2022-10-05 V. S. Beskin , A. Yu. Istomin

Linear diagrams are an effective way to visualize set-based data by representing elements as columns and sets as rows with one or more horizontal line segments, whose vertical overlaps with other rows indicate set intersections and their…

计算几何 · 计算机科学 2022-08-18 Alexander Dobler , Martin Nöllenburg

Graphs are often used to model relationships between entities. The identification and visualization of clusters in graphs enable insight discovery in many application areas, such as life sciences and social sciences. Force-directed graph…

人机交互 · 计算机科学 2024-08-22 Nora Al-Naami , Nicolas Médoc , Matteo Magnani , Mohammad Ghoniem

Effectively showing the relationships between objects in a dataset is one of the main tasks in information visualization. Typically there is a well-defined notion of distance between pairs of objects, and traditional approaches such as…

人机交互 · 计算机科学 2014-04-09 Bahador Saket , Paolo Simonetto , Stephen Kobourov , Katy Borner

High-precision pulsar timing is central to a wide range of astrophysics and fundamental physics applications. When timing an ensemble of millisecond pulsars in different sky positions, known as a pulsar timing array (PTA), one can search…

天体物理仪器与方法 · 物理学 2018-10-09 R. N. Caballero

Our understanding of the neutron star population is informed to a great degree by large-scale surveys that have been carried out by radio facilities during the past fifty years. We summarize some of the recent breakthroughs in our…

高能天体物理现象 · 物理学 2019-03-20 D. R. Lorimer , N. Pol , K. Rajwade , K. Aggarwal , D. Agarwal , J. Strader , N. Lewandowska , D. Kaplan , T. Cohen , P. Demorest , E. Fonseca , S. Chatterjee

We present radio intensity and polarisation profiles of 28 $\gamma$-ray-detected pulsars with the aim of putting constraints on their viewing geometries using data from the Parkes telescope. Constraints are formed both from the…

高能天体物理现象 · 物理学 2015-06-23 S. C. Rookyard , P. Weltevrede , S. Johnston

In this paper we have used the data of 1315 pulsars (Guseinov et al. 2002) for statistical analysis and showed the changes in pulsar parameters since the appearance of Taylor et al. (1996) catalog. Here we present the space distribution of…

天体物理学 · 物理学 2009-11-07 O. H. Guseinov , E. Yazgan , S. Ozkan , A. Sezer , S. Tagieva

Traditional pulsar surveys have primarily employed time-domain periodicity searches. However, these methods are susceptible to effects like scattering, eclipses and orbital motion. At lower radio frequencies (<= 300 MHz), factors such as…

高能天体物理现象 · 物理学 2024-11-20 S. Sett , M. Sokolowski , E. Lenc , N. D. R. Bhat

Periodic orbits are important objects of discrete dynamical systems, but finding them is not always easy. We present a self-contained introductory account, aimed at non-experts, to prove their existence and study their stability using the…

动力系统 · 数学 2025-10-09 Lucía Alonso Mozo , Olivier Hénot , Phillipo Lappicy

How can we find a good graph clustering of a real-world network, that allows insight into its underlying structure and also potential functions? In this paper, we introduce a new graph clustering algorithm Dcut from a density point of view.…

社会与信息网络 · 计算机科学 2016-06-06 Junming Shao , Qinli Yang , Jinhu Liu , Stefan Kramer

[ABRIDGED] We present the discovery and follow-up observations of 142 pulsars found in the Parkes 20-cm multibeam pulsar survey of the Galactic plane. These new discoveries bring the total number of pulsars found by the survey to 742. In…