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We present predictions for neutron star tidal deformabilities obtained from a Bayesian analysis of the nuclear equation of state, assuming a minimal model at high-density that neglects the possibility of phase transitions. The Bayesian…

核理论 · 物理学 2019-12-17 Y. Lim , J. W. Holt

Three different inferential problems related to a two dimensional categorical data from a Bayesian perspective have been discussed in this article. Conjugate prior distribution with symmetric and asymmetric hyper parameters are considered.…

统计理论 · 数学 2024-09-05 Samyajoy Pal , Christian Heumann , M. Subbiah

A central open problem in nuclear physics is the determination of a physically robust equation of state (EoS) for dense nuclear matter, which directly informs our understanding of the internal composition and macroscopic properties of…

核理论 · 物理学 2025-12-08 I. Stergakis , Th. Diakonidis , Ch. C. Moustakidis

We propose a general method to carry out a valid Bayesian analysis of a finite-dimensional `targeted' parameter in the presence of a finite-dimensional nuisance parameter. We apply our methods to causal inference based on estimating…

统计方法学 · 统计学 2026-02-03 Magid Sabbagh , David A. Stephens

We explore probability modelling of discretization uncertainty for system states defined implicitly by ordinary or partial differential equations. Accounting for this uncertainty can avoid posterior under-coverage when likelihoods are…

统计方法学 · 统计学 2016-10-25 Oksana A. Chkrebtii , David A. Campbell , Ben Calderhead , Mark A. Girolami

There are several assumptions made in a standard $\chi^2$ analysis of data, including the frequent assumption that the likelihood function is well approximated by a multivariate Gaussian distribution. This article briefly reviews the…

核理论 · 物理学 2015-02-09 Andrew W. Steiner

A fundamental class of inferential problems are those characterised by there having been a substantial degree of pre-data (or prior) belief that the value of a model parameter was equal or lay close to a specified value, which may, for…

其他统计学 · 统计学 2021-01-26 Russell J. Bowater

The equation of state (EOS) of cold dense matter is a central open problem in nuclear astrophysics. Its inference is hindered by the lack of \textit{ab initio} control above about twice nuclear saturation density, requiring extrapolation.…

高能天体物理现象 · 物理学 2026-05-18 Bhaskar Biswas

Using a Bayesian approach, we combine measurements of neutron star macroscopic observables obtained by astrophysical and gravitational observations, to derive joint constraints on the equation of state (EoS) of matter at supranuclear…

高能天体物理现象 · 物理学 2019-10-09 Margherita Fasano , Tiziano Abdelsalhin , Andrea Maselli , Valeria Ferrari

Bayesian inference is used to estimate continuous parameter values given measured data in many fields of science. The method relies on conditional probability densities to describe information about both data and parameters, yet the notion…

统计方法学 · 统计学 2025-03-25 Klaus Mosegaard , Andrew Curtis

Bayesian inference provides a rigorous methodology for estimation and uncertainty quantification of parameters in geophysical forward models. Badlands (basin and landscape dynamics model) is a landscape evolution model that simulates…

地球物理 · 物理学 2021-07-06 Rohitash Chandra , Danial Azam , R. Dietmar Müller , Tristan Salles , Sally Cripps

Bayesian analyses require that all variable model parameters are given a prior probability distribution. This can pose a challenge for analyses where multiple experiments are combined if these experiments use different parametrisations for…

统计方法学 · 统计学 2026-03-13 Lukas Koch

Constraints are a natural choice for prior information in Bayesian inference. In various applications, the parameters of interest lie on the boundary of the constraint set. In this paper, we use a method that implicitly defines a…

统计理论 · 数学 2022-09-27 Jasper Marijn Everink , Yiqiu Dong , Martin Skovgaard Andersen

Measuring neutron star radii with spectroscopic and timing techniques relies on the combination of multiple observables to break the degeneracies between the mass and radius introduced by general relativistic effects. Here, we explore a…

高能天体物理现象 · 物理学 2015-10-21 Feryal Ozel , Dimitrios Psaltis

We consider the problem of state estimation from limited discrete and noisy measurements. In particular, we focus on modal state estimation, which approximates the unknown state of the system within a prescribed basis. We estimate the…

数值分析 · 数学 2025-05-08 Lev Kakasenko , Alen Alexanderian , Mohammad Farazmand , Arvind K. Saibaba

We develop a Bayesian approach to estimate weight matrices in spatial autoregressive (or spatial lag) models. Datasets in regional economic literature are typically characterized by a limited number of time periods T relative to spatial…

计量经济学 · 经济学 2022-08-03 Tamás Krisztin , Philipp Piribauer

Two major bottlenecks to the solution of large-scale Bayesian inverse problems are the scaling of posterior sampling algorithms to high-dimensional parameter spaces and the computational cost of forward model evaluations. Yet incomplete or…

统计计算 · 统计学 2016-05-03 Tiangang Cui , Youssef M. Marzouk , Karen E. Willcox

Bayesian hierarchical inference of phenomenological parameterized neutron star equations of state (EoS) from multiple gravitational wave observations of binary neutron star mergers is of fundamental importance in improving our understanding…

广义相对论与量子宇宙学 · 物理学 2023-03-08 Anarya Ray , Michael Camilo , Jolien Creighton , Shaon Ghosh , Soichiro Morisaki

As an alternative to the popular parametrisations of the dark energy equation of state, we construct a quintessence model where the scalar field has a linear dependence on the number of e-folds. Constraints on more complex models are…

宇宙学与河外天体物理 · 物理学 2021-12-17 Vitor da Fonseca , Tiago Barreiro , Nelson J. Nunes

In Bayesian statistics, one's prior beliefs about underlying model parameters are revised with the information content of observed data from which, using Bayes' rule, a posterior belief is obtained. A non-trivial example taken from the…

高能物理 - 唯象学 · 物理学 2007-05-23 J. Charles , A. Hocker , H. Lacker , F. R. Le Diberder , S. T'Jampens