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We propose an approach based on function evaluations and Bayesian inference to extract higher-order differential information of objective functions {from a given ensemble of particles}. Pointwise evaluation $\{V(x^i)\}_i$ of some potential…

机器学习 · 统计学 2023-03-02 Claudia Schillings , Claudia Totzeck , Philipp Wacker

Extreme-mass-ratio inspirals (EMRIs) carry valuable information about their surrounding astrophysical environments. Over the course of their long-term evolution, interactions between the secondary object and the accretion disk can produce…

广义相对论与量子宇宙学 · 物理学 2026-04-14 Jian-Dong Liu , Wen-Biao Han , Hiromichi Tagawa

We examine extreme mass-ratio inspirals (EMRIs) as probes of beyond-vacuum general relativistic effects, accounting for both astrophysical environments and scalar Gauss-Bonnet (sGB) gravity. In beyond-vacuum scenarios, the evolution of an…

广义相对论与量子宇宙学 · 物理学 2026-01-08 Tieguang Zi , Mostafizur Rahman , Shailesh Kumar

In this paper, we investigate the impact of loop quantum gravity (LQG) on extreme mass-ratio inspirals (EMRIs), and the results indicate that LQG effects cause the orbital decay to occur faster compared to the Schwarzschild case.…

广义相对论与量子宇宙学 · 物理学 2024-09-20 Guoyang Fu , Yunqi Liu , Bin Wang , Jian-Pin Wu , Chao Zhang

Even if globally neutral, in various scenarios compact objects can have a nonvanishing dipole moment. Examples include neutron stars with magnetic dipoles, black-hole microstates in the string-theory fuzzball scenario, and classical black…

广义相对论与量子宇宙学 · 物理学 2023-10-13 Jacopo Lestingi , Enrico Cannizzaro , Paolo Pani

Using an analytic, static, and spherically symmetric metric for a Schwarzschild black hole immersed in a dark matter (DM) halo with the Hernquist-type profile, we derive analytic expressions for the orbital period and precession of…

广义相对论与量子宇宙学 · 物理学 2024-11-01 Ning Dai , Yungui Gong , Yang Zhao , Tong Jiang

The Gaussian splatting methods are getting popular. However, their loss function only contains the $\ell_1$ norm and the structural similarity between the rendered and input images, without considering the edges in these images. It is…

计算机视觉与模式识别 · 计算机科学 2024-04-23 Yuanhao Gong

Upcoming Large Scale Structure surveys aim to achieve an unprecedented level of precision in measuring galaxy clustering. However, accurately modeling these statistics may require theoretical templates that go beyond second-order…

宇宙学与河外天体物理 · 物理学 2023-11-21 M. Icaza-Lizaola , Yong-Seon Song , Minji Oh , Yi Zheng

Lagrangian particle tracking is essential for characterizing turbulent flows, but inferring particle acceleration from inherently noisy position data remains a significant challenge. Fluid particles in turbulence experience extreme,…

数据分析、统计与概率 · 物理学 2026-02-27 Griffin M Kearney , Kasey M Laurent , Makan Fardad

We describe a new class of resonances for extreme mass-ratio inspirals (EMRIs): tidal resonances, induced by the tidal field of nearby stars or stellar-mass black holes. A tidal resonance can be viewed as a general relativistic extension of…

广义相对论与量子宇宙学 · 物理学 2019-09-24 Béatrice Bonga , Huan Yang , Scott A. Hughes

The exact properties of dark matter remain largely unknown despite the accumulating evidence. If dark matter is composed of weakly interacting massive particles, it would be accreted by the black hole in the galactic center and form a…

宇宙学与河外天体物理 · 物理学 2022-09-07 Gen-Liang Li , Yong Tang , Yue-Liang Wu

The future space-based gravitational wave observatory, the Laser Interferometer Space Antenna, is expected to observe between 1-1000s extreme mass-ratio inspirals (EMRIs) per year. Due to the simultaneous presence of other gravitational…

广义相对论与量子宇宙学 · 物理学 2025-12-30 Sviatoslav Khukhlaev , Stanislav Babak

Extreme-mass-ratio inspirals (EMRIs), consisting of a massive black hole and a stellar compact object, are one of the most important sources for space-borne gravitational wave detectors like TianQin. Their population study can be used to…

高能天体物理现象 · 物理学 2025-05-08 Hui-Min Fan , Xiang-Yu Lyu , Jian-dong Zhang , Yi-Ming Hu , Rong-Jia Yang , Tai-Fu Feng

This paper presents a probabilistic surrogate model for the accelerated design of electric vehicle battery enclosures with a focus on crash performance. The study integrates high-throughput finite element simulations and Gaussian Process…

机器学习 · 计算机科学 2024-08-08 Shadab Anwar Shaikh , Harish Cherukuri , Kranthi Balusu , Ram Devanathan , Ayoub Soulami

Magnetic Resonance Imaging (MRI) is one of the fields that the compressed sensing theory is well utilized to reduce the scan time significantly leading to faster imaging or higher resolution images. It has been shown that a small fraction…

信息论 · 计算机科学 2014-06-03 Cagdas Bilen , Yao Wang , Ivan Selesnick

We propose a novel exponentially-modified Gaussian (EMG) mixture residual model. The EMG mixture is well suited to model residuals that are contaminated by a distribution with positive support. This is in contrast to commonly used robust…

机器学习 · 统计学 2019-02-18 Sebastian Ament , John Gregoire , Carla Gomes

We propose to use gravitational waves from extreme mass ratio inspirals (EMRI), composed of a boson star and a supermassive black hole in the center of galaxies, as a new method to search for boson stars. Gravitational waves from EMRI have…

高能物理 - 唯象学 · 物理学 2019-09-25 Huai-Ke Guo , Kuver Sinha , Chen Sun

Studies regarding extra-dimensions have been of great interest in modern theoretical physics, including their observational consequences from future gravitational wave (GW) observatories. In this direction, extreme-mass-ratio inspirals…

广义相对论与量子宇宙学 · 物理学 2025-07-17 Shailesh Kumar , Tieguang Zi , Arpan Bhattacharyya

Accurate assessment of systematic uncertainties is an increasingly vital task in physics studies, where large, high-dimensional datasets, like those collected at the Large Hadron Collider, hold the key to new discoveries. Common approaches…

统计方法学 · 统计学 2025-10-02 Alexis Romero , Kyle Cranmer , Daniel Whiteson

Latent Gaussian models have a rich history in statistics and machine learning, with applications ranging from factor analysis to compressed sensing to time series analysis. The classical method for maximizing the likelihood of these models…

机器学习 · 计算机科学 2023-06-07 Alexander Lin , Bahareh Tolooshams , Yves Atchadé , Demba Ba