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相关论文: Increasing Fisher Information by Moving-Mesh Recon…

200 篇论文

Data from diffusion magnetic resonance imaging (dMRI) can be used to reconstruct fiber tracts, for example, in muscle and white matter. Estimation of fiber orientations (FOs) is a crucial step in the reconstruction process and these…

计算机视觉与模式识别 · 计算机科学 2016-05-17 Chuyang Ye , Jiachen Zhuo , Rao P. Gullapalli , Jerry L. Prince

Using higher-order statistics to capture cosmological information from weak lensing surveys often requires a transformation of observed shear to a measurement of the convergence signal. This inverse problem is complicated by noise and…

宇宙学与河外天体物理 · 物理学 2024-06-25 Nisha Grewal , Joe Zuntz , Tilman Tröster

The Fisher Information matrix is a widely used measure for applications ranging from statistical inference, information geometry, experiment design, to the study of criticality in biological systems. Yet there is no commonly accepted…

统计计算 · 统计学 2016-02-17 Omri Har Shemesh , Rick Quax , Borja Miñano , Alfons G. Hoekstra , Peter M. A. Sloot

Multi-view mesh reconstruction remains a core challenge in computer graphics and vision, especially for recovering high-frequency geometry from sparse observations. Recent methods such as 3D Gaussian Splatting (3DGS) and Neural Radiance…

计算机视觉与模式识别 · 计算机科学 2026-05-11 Nandhana Sunil , Abhirami R Iyer , Avirup Mandal

The aim of this paper is to establish a nonlinear variational approach to the reconstruction of moving density images from indirect dynamic measurements. Our approach is to model the dynamics as a hyperelastic deformation of an initial…

数值分析 · 数学 2015-12-01 Martin Burger , Jan Modersitzki , Sebastian Suhr

The Fisher information matrix is a quantity of fundamental importance for information geometry and asymptotic statistics. In practice, it is widely used to quickly estimate the expected information available in a data set and guide…

统计方法学 · 统计学 2023-06-06 William R. Coulton , Benjamin D. Wandelt

In this contribution, quantum Fisher information is utilized to estimate the parameters of a central qubit interacting with a single-spin qubit. The effect of the longitudinal, transverse and the rotating strengths of the magnetic field on…

量子物理 · 物理学 2018-04-04 N. Metwally

Gravitational-wave astronomy has entered a regime where it can extract information about the population properties of the observed binary black holes. The steep increase in the number of detections will offer deeper insights, but it will…

广义相对论与量子宇宙学 · 物理学 2026-01-15 Stefano Rinaldi , Alexandre Toubiana , Jonathan R. Gair

The Fisher information matrix summarizes the amount of information in a set of data relative to the quantities of interest. There are many applications of the information matrix in statistical modeling, system identification and parameter…

统计计算 · 统计学 2014-05-08 Xumeng Cao

In this work we present a nonparametric approach, which works on minimal assumptions, to reconstruct the cosmic expansion of the Universe. We propose to combine a locally weighted scatterplot smoothing method and a simulation-extrapolation…

宇宙学与河外天体物理 · 物理学 2014-02-20 Ariadna Montiel , Ruth Lazkoz , Irene Sendra , Celia Escamilla-Rivera , Vincenzo Salzano

We present an algorithm for quickly generating multiple realizations of N-body simulations to be used, for example, for cosmological parameter estimation from surveys of large-scale structure. Our algorithm uses a new method to resample the…

宇宙学与河外天体物理 · 物理学 2015-05-27 Michael D. Schneider , Shaun Cole , Carlos S. Frenk , Istvan Szapudi

The relevance of the concept of Fisher information is increasing in both statistical physics and quantum computing. From a statistical mechanical standpoint, the application of Fisher information in the kinetic theory of gases is…

量子物理 · 物理学 2018-05-09 Carlo Cafaro , Paul M. Alsing

The technical merits of weak value amplification techniques are analyzed. We consider models of several different types of technical noise in an optical context and show that weak value amplification techniques (which only use a small…

光学 · 物理学 2016-03-01 Andrew N. Jordan , Julián Martínez-Rincón , John C. Howell

We are concerned with the inverse scattering problem of extracting the geometric structures of an unknown/inaccessible inhomogeneous medium by using the corresponding acoustic far-field measurement. Using the intrinsic geometric properties…

偏微分方程分析 · 数学 2017-06-15 Jingzhi Li , Xiaofei Li , Hongyu Liu

In this paper, we report a significant recovery of the linear baryonic acoustic oscillation (BAO) signature by applying the isobaric reconstruction algorithm to the non-linear matter density field. Assuming only the longitudinal component…

宇宙学与河外天体物理 · 物理学 2017-06-14 Xin Wang , Hao-Ran Yu , Hong-Ming Zhu , Yu Yu , Qiaoyin Pan , Ue-Li Pen

Non-invasive assessment of the electrical activation pattern can significantly contribute to the diagnosis and treatment of cardiac arrhythmias, due to faster and safer diagnosis, improved surgical planning and easier follow-up. One…

医学物理 · 物理学 2024-01-09 Nathan Dermul , Hans Dierckx

We undertake the first comprehensive and quantitative real-space analysis of the cosmological information content in the environments of the cosmic web (voids, filaments, walls, and nodes) up to non-linear scales, $k = 0.5$ $h$/Mpc. Relying…

宇宙学与河外天体物理 · 物理学 2022-05-25 Tony Bonnaire , Nabila Aghanim , Joseph Kuruvilla , Aurélien Decelle

The growth rate of large-scale structure provides a powerful consistency test of the standard cosmological model and a probe of possible deviations from general relativity. We use a Fisher analysis to forecast constraints on the growth rate…

宇宙学与河外天体物理 · 物理学 2020-10-02 Jan-Albert Viljoen , José Fonseca , Roy Maartens

Combining redshift and galaxy shape information offers new exciting ways of exploiting the gravitational lensing effect for studying the large scales of the cosmos. One application is the three-dimensional reconstruction of the matter…

宇宙学与河外天体物理 · 物理学 2015-05-13 Patrick Simon , Andy Taylor , Jan Hartlap

A novel framework for designing image reconstruction algorithms for linear forward problems is proposed. The framework is based on the novel concept of conserving the information in the data during image reconstruction rather than…

数据分析、统计与概率 · 物理学 2007-05-23 Keith S Cover