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Although the existing max-value entropy search (MES) is based on the widely celebrated notion of mutual information, its empirical performance can suffer due to two misconceptions whose implications on the exploration-exploitation trade-off…

机器学习 · 计算机科学 2022-03-01 Quoc Phong Nguyen , Bryan Kian Hsiang Low , Patrick Jaillet

LISA Pathfinder (LPF), ESA's precursor mission to a gravitational wave observatory, will measure the degree to which two test-masses can be put into free-fall, aiming to demonstrate a residual relative acceleration with a power spectral…

A maximum entropy method (MEM) is presented for separating the emission due to different foreground components from simulated satellite observations of the cosmic microwave background radiation (CMBR). In particular, the method is applied…

天体物理学 · 物理学 2009-10-30 MP Hobson , AW Jones , AN Lasenby , FR Bouchet

Ultrafast multidimensional spectroscopies are powerful tools that can access charge and energy flow in complex materials, shifting chemical kinetics, and even many-body interactions in correlated matter. However, current implementations…

The maximum entropy principle (MEP) is a method for obtaining the most likely distribution functions of observables from statistical systems, by maximizing entropy under constraints. The MEP has found hundreds of applications in ergodic and…

经典物理 · 物理学 2016-10-03 Rudolf Hanel , Stefan Thurner , Murray Gell-Mann

Stellar physics and evolution calculations enable a broad range of research in astrophysics. Modules for Experiments in Stellar Astrophysics (MESA) is a suite of open source libraries for a wide range of applications in computational…

太阳与恒星天体物理 · 物理学 2010-12-17 Bill Paxton , Lars Bildsten , Aaron Dotter , Falk Herwig , Pierre Lesaffre , Frank Timmes

Advanced slot and winding designs are imperative to create future high performance electrical machines (EM). As a result, the development of methods to design and improve slot filling factor (SFF) has attracted considerable research. Recent…

信号处理 · 电气工程与系统科学 2025-03-04 Pedram Asef , Christopher Vagg

This paper proposes a two-level restricted additive Schwarz (RAS) method for multiscale PDEs, built on top of a multiscale spectral generalized finite element method (MS-GFEM). The method uses coarse spaces constructed from optimal local…

数值分析 · 数学 2024-08-30 Arne Strehlow , Chupeng Ma , Robert Scheichl

This paper addresses the generation expansion planning (GEP) problem, formulated as a mixed-integer linear programming model with intertemporal storage constraints. Being generally NP-hard, the problem's computational complexity grows…

最优化与控制 · 数学 2026-05-25 Luca Santosuosso , Sonja Wogrin

Globally, Pulsar Timing Array (PTA) experiments have revealed evidence supporting an existing gravitational wave background (GWB) signal in the PTA data set. Apart from acquiring more observations, the sensitivity of PTA experiments can be…

天体物理仪器与方法 · 物理学 2025-04-03 El Mehdi Zahraoui , Patricio Maturana-Russel , Willem van Straten , Renate Meyer , Sergei Gulyaev

The detection and estimation of gravitational wave (GW) signals belonging to a parameterized family of waveforms requires, in general, the numerical maximization of a data-dependent function of the signal parameters. Due to noise in the…

广义相对论与量子宇宙学 · 物理学 2010-04-21 Yan Wang , Soumya D. Mohanty

Quantifying the complexity and irregularity of time series data is a primary pursuit across various data-scientific disciplines. Sample entropy (SampEn) is a widely adopted metric for this purpose, but its reliability is sensitive to the…

应用统计 · 统计学 2024-05-13 Zachary Blanks , Donald E. Brown

First principle calculation of the QCD spectral functions (SPFs) based on the lattice QCD simulations is reviewed. Special emphasis is placed on the Bayesian inference theory and the Maximum Entropy Method (MEM), which is a useful tool to…

高能物理 - 格点 · 物理学 2009-10-31 M. Asakawa , T. Hatsuda , Y. Nakahara

When considering a model selection or, more generally, an aggregation approach for adaptive statistical inference, it is often necessary to compute estimators over a wide range of model complexities including unnecessarily large models even…

统计理论 · 数学 2026-04-17 Ilsang Ohn , Shitao Fan , Jungbin Jun , Lizhen Lin

The development of deep learning methods for magnetic resonance spectroscopy (MRS) is often hindered by limited availability of large, high-quality training datasets. While physics-based simulations are commonly used to mitigate this…

Power spectral density (PSD) estimation is a critical step in gravitational wave (GW) detectors data analysis. The Welch method is a typical non-parametric spectral estimation approach that estimates the PSD of stationary noise by averaging…

广义相对论与量子宇宙学 · 物理学 2025-08-19 Jin-Bao Zhu , Chao-Wan-Zhen Wang , Guo-Qing Huang , Fu-Wen Shu

By locally encoding raw data into intermediate features, collaborative inference enables end users to leverage powerful deep learning models without exposure of sensitive raw data to cloud servers. However, recent studies have revealed that…

机器学习 · 计算机科学 2025-04-04 Song Xia , Yi Yu , Wenhan Yang , Meiwen Ding , Zhuo Chen , Ling-Yu Duan , Alex C. Kot , Xudong Jiang

Consider the task of estimating a 3-order $n \times n \times n$ tensor from noisy observations of randomly chosen entries in the sparse regime. We introduce a similarity based collaborative filtering algorithm for estimating a tensor from…

机器学习 · 计算机科学 2023-01-18 Devavrat Shah , Christina Lee Yu

The Metropolis-within-Gibbs (MwG) algorithm is a widely used Markov Chain Monte Carlo method for sampling from high-dimensional distributions when exact conditional sampling is intractable. We study MwG with Random Walk Metropolis (RWM)…

机器学习 · 统计学 2025-10-01 Cecilia Secchi , Giacomo Zanella

Autoregressive (AR) time series models are widely used in parametric spectral estimation (SE), where the power spectral density (PSD) of the time series is approximated by that of the \emph{best-fit} AR model, which is available in closed…

信号处理 · 电气工程与系统科学 2021-10-06 Alejandro Cuevas , Sebastián López , Danilo Mandic , Felipe Tobar