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We propose two efficient algorithms for configurational sampling of systems with rough energy landscape. The first one is a new method for the determination of the multicanonical weight factor. In this method a short replica-exchange…

统计力学 · 物理学 2009-10-31 Yuji Sugita , Yuko Okamoto

Measurement-based quantum computation (MBQC) and holonomic quantum computation (HQC) are two very different computational methods. The computation in MBQC is driven by adaptive measurements executed in a particular order on a large…

量子物理 · 物理学 2015-06-17 Bobby Antonio , Damian Markham , Janet Anders

Materials with heterogeneous structures exhibit complex physical processes such as delamination, cracks, and plasticity, which require micromechanical parameters for understanding. However, identifying these parameters is challenging due to…

偏微分方程分析 · 数学 2023-06-26 Liya Gaynutdinova , Ondřej Rokoš , Jan Havelka , Ivana Pultarová , Jan Zeman

Mamba-based models, VMamba and Vim, are a recent family of vision encoders that offer promising performance improvements in many computer vision tasks. This paper compares Mamba-based models with traditional Convolutional Neural Networks…

计算机视觉与模式识别 · 计算机科学 2024-09-18 Ali Nasiri-Sarvi , Mahdi S. Hosseini , Hassan Rivaz

Generalized-ensemble Monte Carlo simulations such as the multicanonical method and similar techniques are among the most efficient approaches for simulations of systems undergoing discontinuous phase transitions or with rugged free- energy…

计算物理 · 物理学 2018-02-06 Jonathan Gross , Johannes Zierenberg , Martin Weigel , Wolfhard Janke

This paper proposes a symbolic-numeric Bayesian filtering method for a class of discrete-time nonlinear stochastic systems to achieve high accuracy with a relatively small online computational cost. The proposed method is based on the…

数值分析 · 数学 2022-03-23 Tomoyuki Iori , Toshiyuki Ohtsuka

We present a comprehensive comparison of different Markov Chain Monte Carlo (MCMC) sampling methods, evaluating their performance on both standard test problems and cosmological parameter estimation. Our analysis includes traditional…

宇宙学与河外天体物理 · 物理学 2025-02-28 Denitsa Staicova

The Hamiltonian Monte Carlo (HMC) method has been recognized as a powerful sampling tool in computational statistics. We show that performance of HMC can be significantly improved by incorporating importance sampling and an irreversible…

统计计算 · 统计学 2019-07-26 Tijana Radivojević , Elena Akhmatskaya

The Linear Ballistic Accumulator (Brown & Heathcote, 2008) model is used as a measurement tool to answer questions about applied psychology. The analyses based on this model depend upon the model selected and its estimated parameters.…

统计方法学 · 统计学 2020-03-03 David Gunawan , Guy E. Hawkins , Minh-Ngoc Tran , Robert Kohn , Scott Brown

The sensitivity of the Statistical Multifragmentation Model to the underlying statistical assumptions is investigated. We concentrate on its micro-canonical, canonical, and isobaric formulations. As far as average values are concerned, our…

核理论 · 物理学 2009-11-11 C. E. Aguiar , R. Donangelo , S. R. Souza

Different holographic dark-energy models are studied from a unifying point of view. We compare models for which the Hubble scale, the future event horizon or a quantity proportional to the Ricci scale are taken as the infrared cutoff…

宇宙学与河外天体物理 · 物理学 2015-03-19 Sergio del Campo , Júlio. C. Fabris , Ramón Herrera , Winfried Zimdahl

In biomolecular systems (especially all-atom models) with many degrees of freedom such as proteins and nucleic acids, there exist an astronomically large number of local-minimum-energy states. Conventional simulations in the canonical…

统计力学 · 物理学 2010-12-30 Ayori Mitsutake , Yoshiharu Mori , Yuko Okamoto

We provide analysis of the convergence properties and applicability extensions of flat-histogram algorithms, with a particular focus on the Wang-Landau algorithms (exemplified by converging stochastic approximation Monte Carlo (SAMC)) and…

计算物理 · 物理学 2024-02-14 Timur Shakirov

Multimodal medical image fusion integrates complementary information from different imaging modalities to enhance diagnostic accuracy and treatment planning. While deep learning methods have advanced performance, existing approaches face…

图像与视频处理 · 电气工程与系统科学 2025-08-06 Meng Zhou , Farzad Khalvati

Bayesian Model Averaging (BMA) is an application of Bayesian inference to the problems of model selection, combined estimation and prediction that produces a straightforward model choice criteria and less risky predictions. However, the…

统计方法学 · 统计学 2017-11-08 Tiago M. Fragoso , Francisco Louzada Neto

The critique against using Boltzmann's microcanonical entropy, an "ensemble measure", as foundation of statistics is rebuffed. The confusion of the microcanonical distribution with the exponential Boltzmann-Gibbs (``BG'') distribution is…

统计力学 · 物理学 2007-05-23 D. H. E. Gross

A new approach is introduced to classify faults in rotating machinery based on the total energy signature estimated from sensor measurements. The overall goal is to go beyond using black-box models and incorporate additional physical…

机器学习 · 计算机科学 2023-01-09 Jeremy Shen , Jawad Chowdhury , Sourav Banerjee , Gabriel Terejanu

Free energy calculations based on atomistic Hamiltonians and sampling are key to a first principles understanding of biomolecular processes, material properties, and macromolecular chemistry. Here, we generalize the Free Energy Perturbation…

计算物理 · 物理学 2023-07-19 Martin Reinhardt , Helmut Grubmüller

We study a reweighting method aiming at numerical studies of QCD at finite density, in which the conventional Monte-Carlo method cannot be applied directly. One of the most important problems in the reweighting method is the overlap…

高能物理 - 格点 · 物理学 2015-01-28 Ryo Iwami , S. Ejiri , K. Kanaya , Y. Nakagawa , T. Umeda , D. Yamamoto

This work focuses on learning non-canonical Hamiltonian dynamics from data, where long-term predictions require the preservation of structure both in the learned model and in numerical schemes. Previous research focused on either facet,…

机器学习 · 计算机科学 2025-10-03 Clémentine Courtès , Emmanuel Franck , Michael Kraus , Laurent Navoret , Léopold Trémant