学术报告
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25
2024-04
The Grothendieck-Serre conjecture in the mixed characteristic case题目: The Grothendieck-Serre conjecture in the mixed characteristic case 报告人：郭宁（圣彼得堡Steklov数学研究所） Abstract： The long-standing conjecture proposed by Serre and Grothendieck in 1958 predicts that over a regular local ring, there ...
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25
2024-04
Weak approximation of symmetric products and norm varieties题目：Weak approximation of symmetric products and norm varieties 报告人：张子扬（中国科学技术大学） Abstract： Let k be a number field. For a variety X over k that satisfies weak approximation with Brauer--Manin obstruction, we study the same pr...
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24
2024-04
On Linear Convergence of ADMM for Decentralized Quantile Regression题目: On Linear Convergence of ADMM for Decentralized Quantile Regression 报告人：练恒 教授(香港城市大学) Abstract：The alternating direction method of multipliers (ADMM) is a natural method of choice for distributed parameter learning. For smooth an...
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24
2024-04
Rank-based indices for testing independence between two high-dimensional vectors题目：Rank-based indices for testing independence between two high-dimensional vectors 报告人：许凯 摘要：To test independence between two high-dimensional random vectors, we propose three tests based on the rank-based indices derived...
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23
2024-04
格基自举型全同态加密算法简介报告题目：格基自举型全同态加密算法简介 报告人：王晗 博士（中国科学院信息工程研究所） 报告摘要：全同态加密作为隐私计算的重要底层技术，受到人们的广泛关注。自举算法作为全同态加密算法的重要组成部分，已经称为近几年来的研究热点。本报告将聚焦基于GSW的自举算法的设计于应用。我们先简单的回顾现有GSW型自举算法的发展历程，总结其特点。然后介绍我们最新提出的适于GSW型自举算法的新型批处理计算框架。该框架与AP14/FHEW/TFHE等现有自举技术兼容。在与这些技术结...
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23
2024-04
Model-free Variable Selection in High Dimension via Constrained Kernel Regression题目: Model-free Variable Selection in High Dimension via Constrained Kernel Regression 报告人：李长城 教授(大连理工大学) Abstract： We propose a model-free variable selection approach, namely constrained kernel regression. Instead of relying on model-bas...
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23
2024-04
格基自举型全同态加密算法简介报告题目：格基自举型全同态加密算法简介 报告人：王晗 博士（中国科学院信息工程研究所） 报告摘要：全同态加密作为隐私计算的重要底层技术，受到人们的广泛关注。自举算法作为全同态加密算法的重要组成部分，已经称为近几年来的研究热点。本报告将聚焦基于GSW的自举算法的设计于应用。我们先简单的回顾现有GSW型自举算法的发展历程，总结其特点。然后介绍我们最新提出的适于GSW型自举算法的新型批处理计算框架。该框架与AP14/FHEW/TFHE等现有自举技术兼容。在与这些技术结...
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23
2024-04
On p-adic Minkowski's Theorems报告题目：On p-adic Minkowski's Theorems 报告人：邓映蒲 研究员（中国科学院数学与系统科学研究院） 报告摘要：Dual lattice is an important concept of Euclidean lattices. We first give the right definition of the concept of the dual lattice of a p-adic lattice from the dual...
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19
2024-04
Explicit evaluation of Stokes matrices via the isomonodromic approach动力系统讨论班 题目：Explicit evaluation of Stokes matrices via the isomonodromic approach 报告人：徐晓濛教授（北京大学） 摘要：The Stokes matrices of linear systems and the associated isomonodromy equation play important roles in the study of Frobenius manifold...
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17
2024-04
Selection principle of Generalized Hamilton-Jacobi equations动力系统讨论班 题目：Selection principle of Generalized Hamilton-Jacobi equations 报告人：张建路教授（中科院数学所） 摘要：In 1987, Lions firstly proposed the homogenization for Hamilton-Jacobi equations, which revealed the significance of effective Hamiltonian in ...