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检索条件"机构=Mathematical Modelling and Data Analytics Center"
12 条 记 录,以下是1-10 订阅
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Approximations of Euler-Maxwell systems by drift-diffusion equations through zero-relaxation limits near the non-constant equilibrium
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Science China Mathematics 2025年 第5期68卷 1051-1078页
作者: Rui Jin Yachun Li Liang Zhao School of Mathematical Sciences Shanghai Jiao Tong UniversityShanghai200240China CMA-Shanghai MOE-LSCand SHL-MACShanghai Jiao Tong UniversityShanghai200240China Mathematical Modelling&Data Analytics Center Oxford Suzhou Centre for Advanced ResearchSuzhou215123China
Due to extreme difficulties in numerical simulations of Euler-Maxwell equations,which are caused by the highly complicated structures of the equations,this paper concerns the simplification of the Euler-Maxwell system... 详细信息
来源: 评论
XNet-Enhanced Deep BSDE Method and Numerical Analysis
arXiv
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arXiv 2025年
作者: Zheng, Xiaotao Xia, Zhihong Li, Xin Yue, Xingye Center for Financial Engineering Soochow University Jiangsu Suzhou215008 China School of Natural Science Great Bay University Guangdong Dongguan523808 China Department of Mathematics Northwestern University EvanstonIL60208 United States Department of Computer Science Northwestern University EvanstonIL60208 United States Mathematical Modelling and Data Analytics Center Oxford Suzhou Centre for Advanced Research Jiangsu Suzhou215123 China
Solving high-dimensional semilinear parabolic partial differential equations (PDEs) challenges traditional numerical methods due to the"curse of dimensionality." Deep learning, particularly through the Deep ... 详细信息
来源: 评论
Compositional data analysis for modeling and forecasting mortality with the α-transformation
arXiv
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arXiv 2025年
作者: Lim, Han Ying Pathmanathan, Dharini Dabo-Niang, Sophie Institute of Mathematical Sciences Faculty of Science Universiti Malaya Kuala Lumpur50603 Malaysia Universiti Malaya Centre for Data Analytics Universiti Malaya Kuala Lumpur50603 Malaysia Center of Research for Statistical Modelling and Methodology Faculty of Science Universiti Malaya Kuala Lumpur50603 Malaysia UMR8524-Laboratoire Paul Painlevé Inria-MODAL University of Lille CNRS Lille59000 France CNRS-Université de Montréal CRM-CNRS Montréal Canada
Mortality forecasting is crucial for demographic planning and actuarial studies, particularly for predicting population ageing rates and future longevity risks. Traditional approaches largely rely on extrapolative met... 详细信息
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Approximations to Isentropic Planar Magneto-Hydrodynamics Equations by Relaxed Euler-Type Systems
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Chinese Annals of Mathematics,Series B 2024年 第3期45卷 413-440页
作者: Yachun LI Zhaoyang SHANG Chenmu WANG Liang ZHAO School of Mathematical Sciences CMA-ShanghaiMOE-LSC and SHL-MACShanghai Jiao Tong UniversityShanghai 200240China School of Finance Shanghai Lixin University of Accounting and FinanceShanghai 201209China School of Mathematical Sciences Shanghai Jiao Tong UniversityShanghai 200240China School of Mathematical Sciences Harbin Engineering UniversityHarbin 150001China Mathematical Modelling&Data Analytics Center Oxford Suzhou Centre for Advanced ResearchSuzhou 215123JiangsuChina
In this paper, the authors consider an approximation to the isentropic planar Magneto-hydrodynamics(MHD for short) equations by a kind of relaxed Euler-type system. The approximation is based on the generalization of ... 详细信息
来源: 评论
APPROXIMATIONS OF EULER-MAXWELL SYSTEMS BY DRIFT-DIFFUSION EQUATIONS THROUGH ZERO-RELAXATION LIMITS NEAR NON-CONSTANT EQUILIBRIUM
arXiv
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arXiv 2023年
作者: Jin, Rui Li, Yachun Zhao, Liang School of Mathematical Sciences Shanghai Jiao Tong University Shanghai200240 China School of Mathematical Sciences CMA-Shanghai MOE-LSC SHL-MAC Shanghai Jiao Tong University Shanghai200240 China Mathematical Modelling & Data Analytics Center Oxford Suzhou Centre for Advanced Research Suzhou215123 China
Due to extreme difficulties in numerical simulations of Euler-Maxwell equations, which are caused by the highly complicated structures of the equations, this paper concerns the simplification of Euler-Maxwell system t... 详细信息
来源: 评论
Global Convergence and Error Estimates in Infinity-ion-mass Limits for Bipolar Euler-Poisson System
arXiv
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arXiv 2022年
作者: Li, Yachun Wang, Shihao Zhao, Liang School of Mathematical Sciences CMA-Shanghai MOE-LSC SHL-MAC Shanghai Jiao Tong University Shanghai200240 China School of Mathematical Sciences Shanghai Jiao Tong University Shanghai200240 China Department of Mathematics University of Wisconsin-Madison Madison 53706 United States Mathematical Modelling & Data Analytics Center Oxford Suzhou Centre for Advanced Research Suzhou215123 China
This paper is concerned with the global-in-time convergence from bipolar Euler–Poisson system (BEP) to unipolar one (UEP) through the infinity-ion-mass limit by letting the ratio of the mass of ion mi over that of el... 详细信息
来源: 评论
Model Comparisons: XNet Outperforms KAN
arXiv
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arXiv 2024年
作者: Li, Xin Xia, Zhihong Zheng, Xiaotao Department of Computer Science Northwestern University EvanstonIL United States Mathematical Modelling and Data Analytics Center Oxford Suzhou Centre for Advanced Research Suzhou China School of Natural Science Great Bay University Guangdong China Department of Mathematics Northwestern University EvanstonIL United States Department of Mathematics Soochow University Suzhou China
In the fields of computational mathematics and artificial intelligence, the need for precise data modeling is crucial, especially for predictive machine learning tasks. This paper explores further XNet, a novel algori... 详细信息
来源: 评论
Cauchy activation function and XNet
arXiv
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arXiv 2024年
作者: Li, Xin Xia, Zhihong Zhang, Hongkun Department of Computer Science Northwestern University EvanstonIL United States Mathematical Modelling and Data Analytics Center Oxford Suzhou Centre for Advanced Research Suzhou China School of Natural Science Great Bay University Guangdong China Department of Mathematics Northwestern University EvanstonIL United States Department of Mathematics and Statistics University of Massachusetts Amherst AmherstMA United States
We have developed a novel activation function, named the Cauchy Activation Function. This function is derived from the Cauchy Integral Theorem in complex analysis and is specifically tailored for problems requiring hi... 详细信息
来源: 评论
Forecasting mortality rates with functional signatures
arXiv
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arXiv 2024年
作者: Jing, Yap Zhong Pathmanathan, Dharini Dabo-Niang, Sophie Institute of Mathematical Sciences Faculty of Science Universiti Malaya Kuala Lumpur50603 Malaysia Universiti Malaya Centre for Data Analytics Universiti Malaya Kuala Lumpur50603 Malaysia Center of Research for Statistical Modelling and Methodology Faculty of Science Universiti Malaya Kuala Lumpur50603 Malaysia CNRS UMR 8524-Laboratoire Paul Painlevé INRIA-MODAL Université Lille LilleF-59000 France CNRS Université de Montréal CRM—CNRS Montréal Canada
This study introduces an innovative methodology for mortality forecasting, which integrates signature-based methods within the functional data framework of the Hyndman-Ullah (HU) model. This new approach, termed the H... 详细信息
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Best practices for estimating and reporting epidemiological delay distributions of infectious diseases using public health surveillance and healthcare data
arXiv
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arXiv 2024年
作者: Charniga, Kelly Park, Sang Woo Akhmetzhanov, Andrei R. Cori, Anne Dushoff, Jonathan Funk, Sebastian Gostic, Katelyn M. Linton, Natalie M. Lison, Adrian Overton, Christopher E. Pulliam, Juliet R.C. Ward, Thomas Cauchemez, Simon Abbott, Sam Mathematical Modelling of Infectious Diseases Unit Institut Pasteur Université Paris Cité CNRS UMR 2000 Paris France Department of Ecology and Evolutionary Biology Princeton University PrincetonNJ United States College of Public Health National Taiwan University Taipei Taiwan MRC Centre for Global Infectious Disease Analysis School of Public Health Imperial College London London United Kingdom Departments of Mathematics & Statistics and Biology McMaster University HamiltonON Canada Department of Biology McMaster University HamiltonON Canada M. G. DeGroote Institute for Infectious Disease Research McMaster University HamiltonON Canada Department of Infectious Disease Epidemiology and Dynamics London School of Hygiene & Tropical Medicine London United Kingdom Centre for Mathematical Modelling of Infectious Diseases London School of Hygiene & Tropical Medicine London United Kingdom Center for Forecasting and Outbreak Analytics U.S. Centers for Disease Control and Prevention AtlantaGA United States Graduate School of Medicine Hokkaido University Sapporo-shi Hokkaido Japan Department of Biosystems Science and Engineering ETH Zurich Zurich Switzerland Department of Mathematical Sciences University of Liverpool Liverpool United Kingdom All Hazards Intelligence Infectious Disease Modelling Team Data Analytics and Surveillance UK Health Security Agency United Kingdom Department of Mathematics University of Manchester Manchester United Kingdom
Epidemiological delays, such as incubation periods, serial intervals, and hospital lengths of stay, are among key quantities in infectious disease epidemiology that inform public health policy and clinical practice. T... 详细信息
来源: 评论