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Hyperdimensional computing (HDC) is a method to perform classification that uses binary vectors with high dimensions and the majority rule. This approach has the potential to be energy-efficient and hence deemed suitable for…

机器学习 · 计算机科学 2023-10-13 Zhanglu Yan , Shida Wang , Kaiwen Tang , Weng-Fai Wong

N-body simulations are essential tools in physical cosmology to understand the large-scale structure (LSS) formation of the Universe. Large-scale simulations with high resolution are important for exploring the substructure of universe and…

计算物理 · 物理学 2020-10-22 Shenggan Cheng , Hao-Ran Yu , Derek Inman , Qiucheng Liao , Qiaoya Wu , James Lin

Hyperdimensional Computing (HDC) is a brain-inspired computing paradigm that represents and manipulates information using high-dimensional vectors, called hypervectors (HV). Traditional HDC methods, while robust to noise and inherently…

分布式、并行与集群计算 · 计算机科学 2025-06-12 Dhruv Parikh , Viktor Prasanna

We present a review of the current state of the art of cosmological dark matter simulations, with particular emphasis on the implications for dark matter detection efforts and studies of dark energy. This review is intended both for…

宇宙学与河外天体物理 · 物理学 2012-10-29 Michael Kuhlen , Mark Vogelsberger , Raul Angulo

Understanding the large-scale structure of the universe remains a fundamental challenge in cosmology, with computational simulations providing critical insights into non-linear structure growth. Particularly, computational simulations…

宇宙学与河外天体物理 · 物理学 2026-03-12 Nitish Yadav

Quantum computing promises to provide the next step up in computational power for diverse application areas. In this review, we examine the science behind the quantum hype, and the breakthroughs required to achieve true quantum advantage in…

量子物理 · 物理学 2025-09-26 R. Au-Yeung , B. Camino , O. Rathore , V. Kendon

A timely combination of new theoretical ideas and observational discoveries has brought about significant advances in our understanding of cosmic evolution. Computer simulations have played a key role in these developments by providing the…

天体物理学 · 物理学 2010-12-09 Carlos S. Frenk

We apply and test a field-level emulator for non-linear cosmic structure formation in a volume matching next-generation surveys. Inferring the cosmological parameters and initial conditions from which the particular galaxy distribution of…

宇宙学与河外天体物理 · 物理学 2025-02-20 Matthew T. Scoggins , Matthew Ho , Francisco Villaescusa-Navarro , Drew Jamieson , Ludvig Doeser , Greg L. Bryan

We study the effect of super-sample covariance (SSC) on the power spectrum and higher-order statistics: bispectrum, halo mass function, and void size function. We also investigate the effect of SSC on the cross covariance between the…

宇宙学与河外天体物理 · 物理学 2023-08-17 Adrian E. Bayer , Jia Liu , Ryo Terasawa , Alexandre Barreira , Yici Zhong , Yu Feng

We describe the development of a scientific cloud computing (SCC) platform that offers high performance computation capability. The platform consists of a scientific virtual machine prototype containing a UNIX operating system and several…

计算物理 · 物理学 2013-12-02 Kevin Jorissen , Fernando D. Vila , John J. Rehr

Cosmological N-body simulations rank among the most computationally intensive efforts today. A key challenge is the analysis of structure, substructure, and the merger history for many billions of compact particle clusters, called halos.…

宇宙学与河外天体物理 · 物理学 2020-08-20 Esteban Rangel , Nicholas Frontiere , Salman Habib , Katrin Heitmann , Wei-keng Liao , Ankit Agrawal , Alok Choudhary

Hyperbolic geometry has been successfully applied in modeling brain cortical and subcortical surfaces with general topological structures. However such approaches, similar to other surface based brain morphology analysis methods, usually…

图像与视频处理 · 电气工程与系统科学 2021-02-23 J. Zhang , Q. Dong , J. Shi , Q. Li , C. M. Stonnington , B. A. Gutman , K. Chen , E. M. Reiman , R. J. Caselli , P. M. Thompson , J. Ye , Y. Wang

The connection and eventual integration of High-Performance Computing (HPC) with Quantum Computing (QC) represents a transformative advancement in computational technology, promising significant enhancements in solving complex, previously…

A critical step to create realistic mock catalogs that support large-scale photometric and spectroscopic sky surveys is the production of cosmological simulations that accurately model the survey observables taking into account the…

The ever increasing size and complexity of data coming from simulations of cosmic structure formation demands equally sophisticated tools for their analysis. During the past decade, the art of object finding in these simulations has hence…

Weak lensing three-point statistics are powerful probes of the structure of dark matter halos. We propose to use the correlation of the positions of galaxies with the shapes of background galaxy pairs, known as the halo-shear-shear…

宇宙学与河外天体物理 · 物理学 2018-02-07 Masato Shirasaki , Naoki Yoshida

With the upcoming generation of telescopes, cluster scale strong gravitational lenses will act as an increasingly relevant probe of cosmology and dark matter. The better resolved data produced by current and future facilities requires…

天体物理仪器与方法 · 物理学 2020-04-15 Christoph Schäfer , Gilles Fourestey , Jean-Paul Kneib

Binary spatter code (BSC)-based hyperdimensional computing (HDC) is a highly error-resilient approximate computational paradigm suited for error-prone, emerging hardware platforms. In BSC HDC, the basic datatype is a hypervector, a…

编程语言 · 计算机科学 2024-02-21 Pu , Yi , Sara Achour

By utilizing large-scale graph analytic tools implemented in the modern Big Data platform, Apache Spark, we investigate the topological structure of gravitational clustering in five different universes produced by cosmological $N$-body…

Image and video descriptors are an omnipresent tool in computer vision and its application fields like mobile robotics. Many hand-crafted and in particular learned image descriptors are numerical vectors with a potentially (very) large…

计算机视觉与模式识别 · 计算机科学 2021-01-20 Peer Neubert , Stefan Schubert