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The variational method is used widely for determining eigenstates of the QCD hamiltonian for actions with a conventional transfer matrix, e.g., actions with improved Wilson fermions. An alternative lattice fermion formalism, staggered…

高能物理 - 格点 · 物理学 2015-03-05 Carleton DeTar , Song-Haeng Lee

Low-lying $\Lambda$ baryons with spin 1/2 are analyzed in two-flavor unquenched lattice QCD. We construct $2 \times 2$ cross correlators from flavor SU(3) ``octet'' and ``singlet'' baryon operators, and diagonalize them so that we can…

高能物理 - 格点 · 物理学 2010-11-05 Toru T. Takahashi , Makoto Oka

This study presents a novel approach to quantifying uncertainties in Bayesian model updating, which is effective in sparse or single observations. Conventional uncertainty quantification metrics such as the Euclidean and Bhattacharyya…

应用统计 · 统计学 2024-10-14 Sangwon Lee , Taro Yaoyama , Yuma Matsumoto , Takenori Hida , Tatsuya Itoi

We propose a unified, yet simple to code, non-conjugate variational Bayes algorithm for posterior approximation of generic Bayesian generalized mixed effect models. Specifically, we consider regression models identified by a linear…

统计方法学 · 统计学 2025-10-14 Cristian Castiglione , Mauro Bernardi

Polynomial chaos expansions (PCE) are widely used for uncertainty quantification (UQ) tasks, particularly in the applied mathematics community. However, PCE has received comparatively less attention in the statistics literature, and fully…

统计方法学 · 统计学 2025-10-30 Kellin N. Rumsey , Devin Francom , Graham C. Gibson , J. Derek Tucker , Gabriel Huerta

We present calculations of nuclear-spin-dependent and nuclear-spin-independent parity violating amplitudes in Ba, Ra, Ac+, Th and Pa. Parity nonconservation in these systems is greatly enhanced due to the presence of very close electronic…

原子物理 · 物理学 2014-04-23 B. M. Roberts , V. A. Dzuba , V. V. Flambaum

Collider processes at the highest available partonic center-of-mass energies - 10 TeV and above - exhibit a new regime of electroweak interactions where electroweak gauge bosons mostly act as quasi-massless partons in vector boson fusion…

高能物理 - 唯象学 · 物理学 2025-11-10 Benjamin Dahlén , Maximilian Löschner , Krzysztof Mękała , Jürgen Reuter , Panagiotis Stylianou

In this paper, a systematic approach is developed to embed the dynamical description of a nonlinear system into a linear parameter-varying (LPV) system representation. Initially, the nonlinear functions in the model representation are…

系统与控制 · 电气工程与系统科学 2020-11-09 Arash Sadeghzadeh , Roland Toth

This paper presents a new variational data assimilation (VDA) approach for the formal treatment of bias in both model outputs and observations. This approach relies on the Wasserstein metric stemming from the theory of optimal mass…

统计方法学 · 统计学 2020-08-04 Sagar K. Tamang , Ardeshir Ebtehaj , Dongmian Zou , Gilad Lerman

We present a comprehensive a priori error analysis of a practical energy based atomistic/continuum coupling method (Shapeev, arXiv:1010.0512) in two dimensions, for finite-range pair-potential interactions, in the presence of vacancy…

数值分析 · 数学 2011-04-05 Christoph Ortner , Alexander V. Shapeev

In full-scale forced vibration tests, the demand often arises to capture high-spatial-resolution mode shapes with limited number of sensors and shakers. Multi-setup experimental modal analysis (EMA) addresses this challenge by roving…

计算工程、金融与科学 · 计算机科学 2024-12-03 Peixiang Wang , Binbin Li

Progress in computing the spectrum of excited baryons and mesons in lattice QCD is described. Large sets of spatially-extended hadron operators are used. The need for multi-hadron operators in addition to single-hadron operators is…

高能物理 - 格点 · 物理学 2015-05-30 Colin Morningstar , John Bulava , Justin Foley , You-Cyuan Jhang , Keisuke Juge , David Lenkner , Chik Him Wong

We present a correction method for the pair density (PD) to get close to the ground state one. The PD is corrected to be a variationally-best PD within the search region that is extended by adding the uniformly-scaled PDs to its elements.…

强关联电子 · 物理学 2011-05-04 Masahiko Higuchi , Katsuhiko Higuchi

The lack of evidence for new physics at the Large Hadron Collider so far has prompted the development of model-independent search techniques. In this study, we compare the anomaly scores of a variety of anomaly detection techniques: an…

Deep-inelastic ep scattering data, taken with the H1 detector at HERA, are used to study the event shape variables thrust, jet broadening, jet mass, C parameter and two kinds of differential two-jet rate. The data cover a large range of the…

高能物理 - 实验 · 物理学 2008-11-26 H1 Collaboration , C. Adloff

The Tweedie Compound Poisson-Gamma model is routinely used for modeling non-negative continuous data with a discrete probability mass at zero. Mixed models with random effects account for the covariance structure related to the grouping…

机器学习 · 统计学 2019-02-05 Yaodong Yang , Rui Luo , Yuanyuan Liu

Experimental data on analyzing power for inclusive meson and baryon production in hadron-proton(polarized) collisions have been analyzed. It is found that the existing data can be described by a simple function of collision energy,…

高能物理 - 唯象学 · 物理学 2014-11-17 Victor V. Abramov

Low-lying $\Lambda$ baryons with spin 1/2 are analyzed in full (unquenched) lattice QCD. We construct $2 \times 2$ cross correlators from flavor SU(3) "octet" and "singlet" baryon operators, and diagonalize them so as to extract information…

高能物理 - 格点 · 物理学 2010-04-30 Toru T. Takahashi , Makoto Oka

Variational autoencoders (VAEs) employ Bayesian inference to interpret sensory inputs, mirroring processes that occur in primate vision across both ventral (Higgins et al., 2021) and dorsal (Vafaii et al., 2023) pathways. Despite their…

机器学习 · 计算机科学 2024-12-10 Hadi Vafaii , Dekel Galor , Jacob L. Yates

The exponential moving average (EMA) is a commonly used statistic for providing stable estimates of stochastic quantities in deep learning optimization. Recently, EMA has seen considerable use in generative models, where it is computed with…

机器学习 · 计算机科学 2023-10-24 Jonathan Patsenker , Henry Li , Yuval Kluger