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相关论文: Configurational entropy in $f(R,T)$ brane models

200 篇论文

The evolution of the configurational entropy of the universe relies on the growth rate of density fluctuations and on the Hubble parameter. In this work, I present the evolution of configurational entropy for the power-law $f(T)$ gravity…

广义相对论与量子宇宙学 · 物理学 2020-09-28 Snehasish Bhattacharjee

A conditional expectation function (CEF) can at best be partially identified when the conditioning variable is interval censored. When the number of bins is small, existing methods often yield minimally informative bounds. We propose three…

计量经济学 · 经济学 2018-03-01 Sam Asher , Paul Novosad , Charlie Rafkin

We investigate the cosmological implications of $f(Q,C)$ gravity with $f(Q,C)=\alpha Q+\beta C$, where $Q$ is the non-metricity scalar and $C$ encapsulates cosmological expansion terms. Three parameterizations of the EoS for dark energy,…

广义相对论与量子宇宙学 · 物理学 2024-11-28 Amit Samaddar , S. Surendra Singh

As is well known, a varying effective gravitational "constant" is one of the common features of most modified gravity theories. Of course, as a modified gravity theory, $f(T)$ theory is not an exception. Noting that the observational…

广义相对论与量子宇宙学 · 物理学 2012-08-31 Hao Wei , Hao-Yu Qi , Xiao-Peng Ma

Complex Evidence Theory (CET), an extension of the traditional D-S evidence theory, has garnered academic interest for its capacity to articulate uncertainty through Complex Basic Belief Assignment (CBBA) and to perform uncertainty…

信息论 · 计算机科学 2024-06-11 Keming Wu , Fuyuan Xiao , Yi Zhang

While significant progress has been made in specifying neural networks capable of representing uncertainty, deep networks still often suffer from overconfidence and misaligned predictive distributions. Existing approaches for measuring this…

机器学习 · 计算机科学 2025-10-24 Spencer Young , Riley Sinema , Cole Edgren , Andrew Hall , Nathan Dong , Porter Jenkins

In this work, the influence of the boundary term $B$ is analyzed in a string-like thick brane scenario in the gravity context $f(T, B)$. For that, three models of $f(T, B)$ are proposed, i.e., $f_1(T, B)=T+k{B}^{n}$, $f_2(T,…

广义相对论与量子宇宙学 · 物理学 2023-11-15 A. R. P. Moreira , C. A. S. Almeida

This is the monograph on the theory and applications of copula entropy (CE). This book first introduces the theory of CE, including its background, definition, theorems, properties, and estimation methods. The theoretical applications of CE…

统计方法学 · 统计学 2025-12-23 Jian Ma

It is shown in this paper that the symplectic form for the system consisting of $D$-dimensional bulk Palatini gravity and SO$(1,1)$ BF theory on an isolated horizon as a boundary just contains the bulk term. An alternative quantization…

广义相对论与量子宇宙学 · 物理学 2016-08-17 Chao-Guang Huang , Jingbo Wang

It has been shown that a functional dependence of the configurational entropy (CE) density exhibits a cosmological comoving behavior related to the scale parameter, $a$, of the FRW flat universe. Such a circumstantial comoving behavior…

广义相对论与量子宇宙学 · 物理学 2019-08-13 Alex E. Bernardini , Roldao da Rocha

We consider tachyonic braneworld with a bulk cosmological constant and investigate a configurational entropy of various magnitudes of scale factor. It is found that for a bulk negative/zero cosmological constant, the configurational entropy…

高能物理 - 理论 · 物理学 2019-10-30 Chong Oh Lee

In this research, we delve into the localization patterns of fermionic fields within a braneworld setting, employing a modified gravity model denoted as $f(Q)$. Our investigation revolves around two specific models, $f_1(Q)=Q+kQ^n$ and…

广义相对论与量子宇宙学 · 物理学 2024-01-05 A. R. P. Moreira , Shi-Hai Dong

This paper investigates the energy bounds in modified Gauss-Bonnet gravity with anisotropic background. Locally rotationally symmetric Bianchi type ${I}$ cosmological model in $f(R,G)$ gravity is considered to meet this aim. Primarily, a…

综合物理 · 物理学 2017-12-07 M. Farasat Shamir , Ayesha Komal

We propose the Variation Calibration Error (VCE) metric for assessing the calibration of machine learning classifiers. The metric can be viewed as an extension of the well-known Expected Calibration Error (ECE) which assesses the…

机器学习 · 计算机科学 2026-02-16 Andrew Thompson , Vivek Desai

Gravitational entropy is an elusive concept. Various theoretical proposals have been presented, initially based on Penrose's Weyl Curvature Hypothesis, and variations of it. A more recent proposal by Clifton, Ellis, and Tavakol (CET)…

广义相对论与量子宇宙学 · 物理学 2022-08-03 Fernando A. Pizaña , Roberto A. Sussman , Juan Carlos Hidalgo

Various logit-adjusted parameterizations of the cross-entropy (CE) loss have been proposed as alternatives to weighted CE for training large models on label-imbalanced data far beyond the zero train error regime. The driving force behind…

机器学习 · 计算机科学 2023-03-15 Tina Behnia , Ganesh Ramachandra Kini , Vala Vakilian , Christos Thrampoulidis

We construct a configurational entropy measure in functional space. We apply it to several nonlinear scalar field models featuring solutions with spatially-localized energy, including solitons and bounces in one spatial dimension, and…

高能物理 - 理论 · 物理学 2012-06-22 Marcelo Gleiser , Nikitas Stamatopoulos

The extended minimal geometric deformation (EMGD) is employed on the fluid membrane paradigm, to describe compact stellar objects as Bose--Einstein condensates (BEC) consisting of gravitons. The black hole quantum portrait, besides deriving…

高能物理 - 理论 · 物理学 2019-03-14 A. Fernandes-Silva , A. J. Ferreira-Martins , R. da Rocha

In this work we group three research topics apparently disconnected, namely solitons, Lorentz symmetry breaking and entropy. Following a recent work [Phys. Lett. B 713 (2012) 304], we show that it is possible to construct in the context of…

高能物理 - 理论 · 物理学 2015-05-25 R. A. C. Correa , Roldao da Rocha , A. de Souza Dutra

We study the \textit{entanglement contour} and \textit{partial entanglement entropy} (PEE) in quantum field theories in 3 and higher dimensions. The entanglement entropy is evaluated from a certain limit of the PEE with a geometric…

高能物理 - 理论 · 物理学 2022-05-17 Muxin Han , Qiang Wen