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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Futaki invariants and Yau’s conjecture on the Hull-Strominger system
Futaki invariants 丘成桐 赫尔-斯特罗明格系统 猜想
2023/4/23
In this talk, we will talk about Fernandez-Molina’s paper”Futaki invariants and Yau’s conjecture on the Hull-Strominger system”. We will introduce a new obstruction to the existence of solutions of th...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Robust Formation Control for Heterogeneous Multi-Agent Systems
异构 多智能体系统 稳健化成控制
2023/4/21
The coordination control problems for heterogeneous multi-agent systems (MASs) have received considerable interests such as consensus, synchronization, distributed formation control. In this presentat...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：差分隐私分布式控制
差分隐私 分布式 控制
2023/4/21
本文研究了符号网络上的差分隐私二部一致性问题。针对这一问题，提出了一种在合作竞争交互信息中加入时变方差噪声的新算法。为了实现隐私保护，允许增加附加噪声的方差，这与现有的文献有本质的不同。此外，添加噪声的方差可以是衰减的或恒定的。通过使用基于随机逼近方法的时变步长，我们证明了该算法均方意义下收敛，并且即使在隐私噪声增加的情况下也几乎处处收敛。我们进一步提出了了一种设计步长和噪声参数的方法，使得算法在...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：On a two dimensional nonlocal shallow-water model
二维 非局部 浅水模型 三维欧拉系统
2023/4/14
In this talk, we first review some related progresses on one dimensional shallow water models. Then we introduce the derivation of a new nonlocal shallow water model from the 3D Euler system with free...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Bank loan information and information asymmetry
银行贷款信息 信息 不对称
2023/4/21
In this study, we examine whether these measures reflect information asymmetry in the stock market. Our analysis is based on a novel dataset of stock transactions and bank loans of all publicly listed...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：装甲装备健康管理系统研制现状、总体架构及关键技术
装甲装备 健康管理系统 PHM技术
2023/4/28
PHM技术是装甲车辆及作战编队提高作战效能、降低全寿命周期成本、实现视情维修的重要手段，同时对作战决策提供辅助支撑。我国装甲装备健康系统处于起步阶段，首先，本报告对国内外装甲装备健康管理系统的研制现状进行了对比分析，其次，对我国目前装甲装备健康管理系统研制的功能要求和总体架构进行了阐述，最后对目前我国装甲装备健康管理系统研制过程中所需的关键技术进行了需求分析。
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：复杂系统GO法可靠性关键技术
复杂系统 GO法 可靠性关键技术
2023/4/28
针对具有多故障模式、复杂相关性、多输入闭环反馈、多状态性能稳定单元等特性的多功能可修系统,系统性地完善了基于GO法的复杂系统可靠性建模与分析方法,并在此基础上首次提出了基于GO法的复杂系统可靠性优化分配方法和基于GO法的复杂系统可靠性评估方法,形成了复杂系统GO法可靠性一体化技术的雏形,开发了相应的GO法可靠性一体化技术软件。所获成果极大地改进了GO法理论,而且拓宽了GO法理论与技术的应用范围。
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：自抗扰控制研究的一些新进展
自抗扰控制 控制学 实时估计 消除系统
2023/5/5
自抗扰控制方法由我国控制学者韩京清先生提出，其特点为实时估计和消除系统中总扰动，具有通用性的控制结构，目前已实现了多个行业的工业级应用。本报告首先介绍自抗扰控制方法的基本思想，并针对最常见的积分串联型的不确定系统，说明自抗扰控制系统的动态性能。进一步，针对更一般的不确定系统，讨论系统的强可观性含义以及相应的自抗扰控制设计方法。最后，针对自抗扰控制核心部分——扩张状态观测器，汇报相关学习优化调参方面...
东北石油大学经济管理学院市场营销学课件Chapter 5 Global Information Systems
东北石油大学经济管理学院 市场营销学 课件 Chapter 5 Global Information Systems
2018/10/24
东北石油大学经济管理学院市场营销学课件Chapter 5 Global Information Systems。
DETECTING FLU OUTBREAKS BASED ON SPATIOTEMPORAL INFORMATION FROM URBAN SYSTEMS – DESIGNING A NOVEL STUDY
GIS epidemiology spatial epidemiology urban information systems seasonal influenza infectious disease surveillance and control
2018/4/18
This paper explores the application of real-time spatial information from urban transport systems to understand the outbreak, severity and spread of seasonal flu epidemics from a spatial perspective. ...
Associate Professor Peter A. Beling，Department of Systems and Information Engineering，University of Virginia（图）
Associate Professor Peter A. Beling Department of Systems and Information Engineering，University of Virginia
2014/11/14
Peter A. Beling is an Associate Professor in the Department of Systems and Information Engineering at the University of Virginia. Dr. Beling’s research focuses on coordination of decision making, part...
Associate Professor Gregory J. Gerling，Department of Systems and Information Engineering，University of Virginia（图）
Associate Professor Gregory J. Gerling Department of Systems and Information Engineering，University of Virginia
2014/11/14
Dr. Gerling joined the faculty in 2005. Before leaving to further pursue academia, Dr. Gerling was a software engineer with Motorola and had held short-term positions with Rockwell-Collins and NASA Am...
Associate Professor Stephen D. Patek，Department of Systems and Information Engineering，University of Virginia（图）
Associate Professor Stephen D. Patek Department of Systems and Information Engineering，University of Virginia
2014/11/14
Stephen Patek is an Associate Professor of Systems and Information Engineering at the University of Virginia. He has over tens years of experience in the theory and practice of stochastic optimization...
Professor Alfredo Garcia，Department of Systems and Information Engineering，University of Virginia（图）
Professor Alfredo Garcia Department of Systems and Information Engineering，University of Virginia
2014/11/14
Alfredo Garcia received a B.Sc. degree in Electrical Engineering from Universidad de los Andes (Colombia) in 1991, a Diplome d'Etudes Approfondies DEA in Control Systems in 1992 from Universite Paul S...
Professor Yacov Y. Haimes，Department of Systems and Information Engineering，University of Virginia（图）
Professor Yacov Y. Haimes Department of Systems and Information Engineering，University of Virginia
2014/11/14
Yacov Y. Haimes holds the Lawrence R. Quarles Professorship at the School of Engineering and Applied Science, University of Virginia, Charlottesville, and is a member of the Systems and Information En...