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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Barron Type Spaces in Neural Network Approximation
神经网络 巴伦类型空间 经典函数空间
2023/4/13
We shall discuss various Barron type spaces arising from neural networks. The relations among these spaces will be clarified, and we shall also establish the relationship between Barron type spaces an...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Deep neural network approximation to inverse conductivity problems for elliptic equations
椭圆方程 反电导率 深度神经网络
2023/4/14
The focus of this talk is on the numerical methods used to identify parameters in partial differential equations. Typically, an optimization approach is used to solve this class of inverse problems, w...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Sequential Network Design
顺序 网络设计 局部互补性 博弈
2023/4/24
We study the problem of designing efficient network sequentially. In each period, the planner connects two unlinked agents in the network formed in previous periods, then the agents play a game with l...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Dynamic Learning and Modelling of Nonlinear Spatio-Temporal Network Data: theory with an application to the EU energy markets
非线性 时空网络数据 动态学习 建模
2023/4/28
Nonlinear modelling of dynamic spatio-temporal network data is often a challenge with various issues, in particular due to irregularly observed locations and location-wide non-stationarity. In this pa...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：A two-stage physics-informed neural network method based on conserved quantities and applications in localized wave solutions
守恒量 两阶段物理信息 神经网络方法 局部波解
2023/5/5
With the advantages of fast calculating speed and high precision, the physics-informed neural network method opens up a new approach for numerically solving nonlinear partial differential equations. B...
上海中医药大学交叉科学研究院郑青山和李禄金团队在JAMA子刊JAMA Network Open发表骨关节炎安慰剂效应模型研究成果（图）
骨关节炎 上海中医药大学 JAMA 更年期综合征
2023/7/3
近日，上海中医药大学交叉科学研究院郑青山和李禄金团队与南方医科大学珠江医院合作开展的骨关节炎安慰剂效应建模研究成果Placebo Response to Oral Administration in Osteoarthritis Clinical Trials and Its Associated Factors: AModel-Based Meta-analysis以Articles形式在JAM...
心血管疾病是全球死亡的主要原因，多域性动脉粥样硬化与较高的心血管疾病风险有关。研究表明，亚临床颈动脉粥样硬化和冠状动脉钙化增加血管事件的风险。此外，亚洲人群中颅内动脉粥样硬化患病率可能较白人高，约有三分之一的老年社区人群患有颅内动脉粥样硬化，导致缺血性卒中发生率更高。因此，需要对多域性动脉粥样硬化病变进行综合评价，以充分了解动脉粥样硬化的分布和负担，准确评估未来心脑血管事件的风险。然而，关于社区人...
2022年6月15日《JAMANetworkOpen》杂志接收了由首都医科大学附属北京天坛医院、国家神经系统疾病临床医学研究中心-脂代谢与动脉粥样硬化中心王拥军教授团队的研究文章“TrendsandriskfactorsassociatedwithstrokerecurrenceinChina,2007-2018”。《JAMANetworkOpen》杂志针对本文在在线当天给出了同期述评
Artificial intelligence and machine learning have become crucial tools for medical imaging, autonomous vehicles and many other applications, but engineers warn that the exponential increase in compute...
硬膜外分娩镇痛是现有分娩镇痛技术中，效果最为确切的方法，也是近20年来临床上最为常用的分娩镇痛方法之一。这项技术能有效缓解产妇的分娩疼痛，已被越来越多产妇和家庭认可。2020年的统计数据显示，上海地区的分娩镇痛率已从2017年的不足30%提升到56%，可见分娩镇痛是舒适化医疗和医学人文发展的必然趋势。但是，作为一项新医疗技术，硬膜外分娩镇痛潜在的缺点也值得关注，如分娩镇痛引起的特殊现象——硬膜外镇...
A universal system for decoding any type of data sent across a network（图）
解码 计算机网络 芯片 半导体技术
2023/6/9
Every piece of data that travels over the internet — from paragraphs in an email to 3D graphics in a virtual reality environment — can be altered by the noise it encounters along the way, such as elec...
Neural network model shows why people with autism read facial expressions differently
infantile autism neural network model expression
2021/8/10
People with autism spectrum disorder interpret facial expressions differently. Researchers have revealed more about how this comes to be. They induced abnormalities into a neural network model to expl...
Researchers develop speedier network analysis for a range of computer hardware（图）
Researchers develop speedier network analysis range computer hardware
2021/3/12
Graphs -- data structures that show relationships among objects -- are highly versatile. It's easy to imagine a graph depicting a social media network's web of connections.But graphs are also used in ...
山东大学计算机网络课件 Network Security
山东大学 计算机网络 课件 Network Security
2020/12/25
山东大学计算机网络课件 Network Security。
山东大学计算机网络课件 Network Layer
山东大学 计算机网络 课件 Network Layer
2020/12/25
山东大学计算机网络课件 Network Layer。