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检索条件"主题词=Langevin algorithm"
210 条 记 录,以下是1-10 订阅
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Non-asymptotic convergence bounds for modified tamed unadjusted langevin algorithm in non-convex setting
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JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS 2025年 第1期543卷
作者: Neufeld, Ariel Ng, Matthew (Cheng En) Zhang, Ying Nanyang Technol Univ Div Math Sci 21 Nanyang Link Singapore 637371 Singapore Hong Kong Univ Sci & Technol Financial Technol Thrust Guangzhou Peoples R China
We consider the problem of sampling from a high-dimensional target distribution pi beta on R-d with density proportional to theta bar right arrow e(-beta U(theta)) using explicit numerical schemes based on discretisin... 详细信息
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Marvels and Pitfalls of the langevin algorithm in Noisy High-Dimensional Inference
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Physical Review X 2020年 第1期10卷 011057-011057页
作者: Stefano Sarao Mannelli Giulio Biroli Chiara Cammarota Florent Krzakala Pierfrancesco Urbani Lenka Zdeborová Université Paris-Saclay CNRS CEA Institut de Physique Théorique 91191 Gif-sur-Yvette France Laboratoire de Physique de l’Ecole Normale Supérieure ENS Université PSL CNRS Sorbonne Université Université Paris-Diderot Sorbonne Paris Cité Paris France Department of Mathematics King’s College London Strand London WC2R 2LS United Kingdom Laboratoire de Physique Statistique CNRS & Université Pierre & Marie Curie & Ecole Normale Supérieure & PSL Université 75005 Paris France
Gradient-descent-based algorithms and their stochastic versions have widespread applications in machine learning and statistical inference. In this work, we carry out an analytic study of the performance of the algori... 详细信息
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langevin algorithms for Markovian Neural Networks and Deep Stochastic Control
Langevin Algorithms for Markovian Neural Networks and Deep S...
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International Joint Conference on Neural Networks (IJCNN)
作者: Bras, Pierre Pages, Gilles Sorbonne Univ Lab Probabilites Stat & Modelisat Paris France
Stochastic Gradient Descent langevin Dynamics (SGLD) algorithms, which add noise to the classic gradient descent, are known to improve the training of neural networks in some cases where the neural network is very dee... 详细信息
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langevin algorithms for Very Deep Neural Networks with Application to Image Classification
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Procedia Computer Science 2023年 222卷 303-310页
作者: Pierre Bras
Training a very deep neural network is a challenging task, as the deeper a neural network is, the more non-linear it is. We compare the performances of various preconditioned langevin algorithms with their non-Langevi... 详细信息
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Multilevel langevin Pathwise Average for Gibbs Approximation
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MATHEMATICS OF OPERATIONS RESEARCH 2025年 第1期50卷 1-781 C2页
作者: Egea, Maxime Panloup, Fabien Univ Angers CNRS LAREMA SFR MATHSTIC F-49000 Angers France
We propose and study a new multilevel method for the numerical approximation of a Gibbs distribution pi on Rd, based on (overdamped) langevin diffusions. This method relies on a multilevel occupation measure, that is,... 详细信息
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(Non)-penalized multilevel methods for non-uniformly log-concave distributions
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ELECTRONIC JOURNAL OF PROBABILITY 2024年 第none期29卷 1-43页
作者: Egea, Maxime Univ Angers Angers France
We study and develop multilevel methods for the numerical approximation of a log-concave probability pi on R-d, based on (over-damped) langevin diffusion. In the continuity of [12] concentrated on the uniformly log-co... 详细信息
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Bayes analysis of the generalized gamma AFT models for left truncated and right censored data
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JOURNAL OF STATISTICAL COMPUTATION AND SIMULATION 2023年 第12期93卷 2026-2051页
作者: Shukla, Asmita Ranjan, Rakesh Upadhyay, Satyanshu K. Banaras Hindu Univ Fac Sci DST Ctr Interdisciplinary Math Sci Varanasi India Banaras Hindu Univ Fac Sci Dept Stat Varanasi India
This article considers the Bayes analysis of generalized gamma accelerated failure time model and its two components Weibull and gamma when the given observations are left truncated and right censored. In order to per... 详细信息
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Exploring noisy Jeffery orbits: A combined Fokker-Planck and langevin analysis in two and three dimensions
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Physical Review E 2024年 第4期110卷 044143页
作者: J. Talbot C. Antoine P. Claudin E. Somfai T. Börzsönyi HUN-REN
The behavior of nonspherical particles in a shear flow is of significant practical and theoretical interest. These systems have been the object of numerous investigations since the pioneering work of Jeffery a century... 详细信息
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Multimodality of Ir187 fission studied by the langevin approach
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Physical Review C 2024年 第3期109卷 034609-034609页
作者: Y. G. Huang (黄英格) F. C. Gu (顾富昌) Y. J. Feng (冯玉洁) H. Wang (王慧) E. X. Xiao (肖尔熙) X. Lei (雷昕) L. Zhu (祝龙) J. Su (苏军) Sino-French Institute of Nuclear Engineering and Technology Sun Yat-sen University Zhuhai 519082 China Key Laboratory of Nuclear Data China Institute of Atomic Energy Beijing 102413 China
Background: The fission mechanism of sub-lead nuclides remains unclear, especially the types of fission modes involved and their corresponding shell effects.
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Subconductance states in a semimicroscopic model for a tetrameric pore
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Physical Review E 2024年 第4期109卷 044402-044402页
作者: L. Ramírez-Piscina J. M. Sancho Departament de Física Aplicada EPSEB Universitat Politécnica de Catalunya Avinguda Doctor Marañón 44 E-08028 Barcelona Spain Universitat de Barcelona Departament de Física de la Matèria Condensada Martí i Franqués 1 E-08028 Barcelona Spain
A physical model for a structured tetrameric pore is studied. The pore is modeled as a device composed of four subunits, each one exhibiting two possible states (open and closed). The pore is located within a membrane... 详细信息
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