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Asymptotic distributions in the projection pursuit based canonical correlation analysis

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Science China mathematics 2010年第2期53卷 485-498页

作者： jin jiao & cui {3..Department of Statistics and Financial mathematics, school of {3..sciences, beijing normal university, laboratory of mathematics and complex systems ({13..normal university), ministry of education, beijing 100875, China 1. Department of Statistics and Financial mathematics School of Mathematical Sciences Beijing Normal University Beijing 100875 China2. Ministry of Education Laboratory of Mathematics and Complex Systems (Beijing Normal University) Beijing 100875 China

In this paper, associations between two sets of random variables based on the projection pursuit (PP) method are studied. The asymptotic normal distributions of estimators of the PP based canonical correlations and we... 详细信息

关键词： asymptotic distribution canonical correlation analysis influence function robust statistics

Sieve M-estimation for semiparametric varying-coefficient partially linear regression model

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Science China mathematics 2010年第8期53卷 1995-2010页

作者： HU Tao 1,2 & cui hengjian 1,2 1 school of {3..{3..beijing normal university,laboratory of mathematics and complex systems,ministry of education,{13..China 2 school of {3..{3..Capital normal university,beijing 100048,China 1. school of mathematical sciences Beijing Normal University Laboratory of Mathematics and Complex Systems Ministry of Education Beijing 100875 China2. School of Mathematical Sciences Capital Normal University Beijing 100048 China

This article considers a semiparametric varying-coefficient partially linear regression *** semiparametric varying-coefficient partially linear regression model which is a generalization of the partially linear regression model and varying-coefficient regression model that allows one to explore the possibly nonlinear effect of a certain covariate on the response variable.A sieve M-estimation method is proposed and the asymptotic properties of the proposed estimators are *** main object is to estimate the nonparametric component and the unknown parameters *** is easier to compute and the required computation burden is much less than the existing two-stage estimation ***,the sieve M-estimation is robust in the presence of outliers if we choose appropriate ρ(·).Under some mild conditions,the estimators are shown to be strongly consistent;the convergence rate of the estimator for the unknown nonparametric component is obtained and the estimator for the unknown parameter is shown to be asymptotically normally *** experiments are carried out to investigate the performance of the proposed method.

关键词： partly linear model varying-coefficient robustness optimal convergence rate asymptotic normality

Martingale Musielak-Orlicz Hardy spaces

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Science China mathematics 2019年第8期62卷 1567-1584页

作者： Guangheng Xie Yong jiao Dachun Yang laboratory of mathematics and complex {3..ministry of education of China) School of Mathematical Sciences Beijing Normal University Beijing 100875 China school of mathematics and Statistics Central South University Changsha 410075 China

In this article,we introduce the martingale Musielak-Orlicz Hardy spaces H_φ^*(■),Pφ(?),H_φ^S(■),Qφ(?)and H_φ^s(■),respectively,via the maximal function,the quadratic variation and the conditional quadratic variation of *** then establish the atomic characterizations of H_φ^s(■),Pφ(■)and Qφ(■).As applications,we obtain the dual space of H_φ^s(■)and several martingale inequalities which further clarify the relations among H_φ^*(■),Pφ(■),H_φ^S(■),Qφ(■)and H_φ^s(■).Especially,as special cases,the results on atomic characterizations of H_φ^s(■),Pφ(?)and Qφ(■)as well as on the dual space of H_φ^s(■)in the weighted case are also new.

关键词： martingale Musielak-Orlicz Hardy space maximal function quadratic variation conditional quadratic variation atom duality

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贫穷对脑智发育的影响

教育生物学杂志 2024年第1期12卷 70-75页

作者：王亚鹏崔悦北京师范大学认知神经科学与学习国家重点实验室北京100875

儿童青少年的大脑可塑性较强,也意味着其较脆弱,容易受成长环境的影响。认知神经科学研究发现,贫穷不仅会影响儿童青少年的认知、情绪、行为、入学准备性、学业表现等,而且会影响其大脑结构和功能;而扶贫和扶智则可以减少贫穷对脑智发... 详细信息

儿童青少年的大脑可塑性较强,也意味着其较脆弱,容易受成长环境的影响。认知神经科学研究发现,贫穷不仅会影响儿童青少年的认知、情绪、行为、入学准备性、学业表现等,而且会影响其大脑结构和功能;而扶贫和扶智则可以减少贫穷对脑智发育所产生的负面影响。尽管贫穷对脑智发育具有诸多负面的影响,但其产生影响的作用机制目前尚不清楚。因此,未来的研究要通过复杂的建模和模型验证来考察贫穷影响脑智发育的作用机制,并在此基础上设计基于证据的一系列干预方案。

关键词：贫穷认知学业表现脑结构脑功能

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技术对教育影响的系统性剖析框架研究

现代教育技术 2021年第12期31卷 27-34页

作者：吕巾娇刘美凤康翠北京师范大学教育技术学院北京100875 江苏大学教师教育学院江苏镇江212013

技术发展引发了社会巨变,然而技术对学校教育的影响却比较缓慢且争议颇多。文章从技术角度出发,首先分析了技术的定义及其发展对教育领域的冲击,说明技术对教育具有必然的显性化影响。之后,文章探讨了技术对教育的复杂性影响,指出教育... 详细信息

技术发展引发了社会巨变,然而技术对学校教育的影响却比较缓慢且争议颇多。文章从技术角度出发,首先分析了技术的定义及其发展对教育领域的冲击,说明技术对教育具有必然的显性化影响。之后,文章探讨了技术对教育的复杂性影响,指出教育具有复杂性、技术的价值和技术的教育价值具有多重体现,且频繁出现的新技术让教育领域应接不暇。最后,文章借鉴系统理论和创新扩散理论,构建了技术对教育影响的系统性剖析框架,并从组成要素、社会环境、层级与阶段、影响结果、传播通道等五个维度对此框架进行了阐释。技术对教育影响的系统性剖析框架的提出,有助于教育工作者理性认识技术与教育的关系从而理性使用技术,并为当前教育技术领域的研究与实践提供理论参考。

关键词：技术学校教育教育技术系统理论创新扩散理论

Efficient Estimation for Semiparametric Varying-Coefficient Partially Linear Regression Models with Current Status Data

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Acta Mathematicae Applicatae Sinica 2009年第2期25卷 195-204页

作者： Tao Hu Heng-jian cui Xing-wei Tong school of mathematical sciences Beijing Normal University Laboratory of Mathematics and Complex Systems Ministry of Education Beijing 100875 China

This article considers a semiparametric varying-coefficient partially linear regression model with current status data. The semiparametric varying-coefficient partially linear regression model which is a generalization of the partially linear regression model and varying-coefficient regression model that allows one to explore the possibly nonlinear effect of a certain covariate on the response variable. A Sieve maximum likelihood estimation method is proposed and the asymptotic properties of the proposed estimators are discussed. Under some mild conditions, the estimators are shown to be strongly consistent. The convergence rate of the estimator for the unknown smooth function is obtained and the estimator for the unknown parameter is shown to be asymptotically efficient and normally distributed. Simulation studies are conducted to examine the small-sample properties of the proposed estimates and a real dataset is used to illustrate our approach.

关键词： Partly linear model varying-coefficient current status data asymptotically efficient estimator sieve MLE

Rebels Lead to the Doctrine of the Mean: A Heterogeneous DeGroot Model

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Journal of systems Science & complexity 2018年第6期31卷 1498-1509页

作者： CAO Zhigang jiao Fengliang QU Xinglong WANG Wen-Xu YANG Mingmin YANG Xiaoguang ZHANG Boyu Department of Economics School of Economics and ManagementBeijing Jiaotong UniversityBeijing 100044China Department of Information Engineering Weifang Business Vocational CollegeZhucheng 262234China The Research Center of Information Technology &Economic and Social Development Hangzhou Dianzi UniversityHangzhou 310018China school of systems Science Beijing Normal UniversityBeijing 100088China MADIS Academy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190China laboratory of mathematics and complex systems Ministry of EducationSchool of Mathematical SciencesBeijing Normal UniversityBeijing 100875China

The DeGroot model is one of the most classical models in the field of opinion dynamics. The standard DeGroot model assumes that agents are homogeneous and update their opinions in the direction of a weighted average of their neighbors'*** natural question is whether a second type of agents could significantly change the main properties of the *** authors address this question by introducing rebels,who update their opinions toward the opposite of their neighbors' weighted *** authors find that the existence of rebels remarkably affects the opinion dynamics. Under certain mild conditions,the existence of a few rebels will lead the group opinion to the golden mean,regardless of the initial opinions of the agents and the structure of the learning *** result is completely different from that of the standard DeGroot model,where the final consensus opinion is determined by both the initial opinions and the learning *** study then provides new insights into understanding how heterogeneous individuals in a group reach consensus and why the golden mean is so common in human society.

关键词： Golden mean network opinion dynamics rebel

Plant multiscale networks:charting plant connectivity by multi-level analysis and imaging techniques

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Science China(Life sciences) 2021年第9期64卷 1392-1422页

作者： Xi Zhang Yi Man Xiaohong Zhuang jinbo Shen Yi Zhang Yaning cui Meng Yu jingjing Xing Guangchao Wang Na Lian Zijian Hu Lingyu Ma Weiwei Shen Shunyao Yang Huimin Xu Jiahui Bian Yanping jing Xiaojuan Li Ruili Li Tonglin Mao Yuling jiao Sodmergen Haiyun Ren jinxing Lin beijing Advanced Innovation Center for Tree Breeding by Molecular Design Beijing Forestry UniversityBeijing 100083China College of Biological sciences and Biotechnology Beijing Forestry UniversityBeijing 100083China school of Life sciences Centre for Cell&Developmental Biology and State Key Laboratory of AgrobiotechnologyThe Chinese University of Hong KongHong Kong 999077China State key laboratory of Subtropical Silviculture Zhejiang A&F UniversityHangzhou 311300China key laboratory of Cell Proliferation and Regulation Biology Ministry of EducationCollege of Life ScienceBeijing Normal UniversityBeijing 100875China key laboratory of Plant Stress Biology School of Life SciencesHenan UniversityKaifeng 457004China College of Biological sciences China Agricultural UniversityBeijing 100193China State key laboratory of Plant Physiology and Biochemistry Department of Plant SciencesCollege of Biological SciencesChina Agricultural UniversityBeijing 100193China State key laboratory of Plant Genomics Institute of Genetics and Developmental BiologyChinese Academy of Sciencesand National Center for Plant Gene ResearchBeijing 100101China key laboratory of ministry of education for Cell Proliferation and Differentiation College of Life SciencesPeking UniversityBeijing 100871China

In multicellular and even single-celled organisms,individual components are interconnected at multiscale levels to produce enormously complex biological networks that help these systems maintain homeostasis for development and environmental *** biology studies initially adopted network analysis to explore how relationships between individual components give rise to complex biological *** analysis has been applied to dissect the complex connectivity of mammalian brains across different scales in time and space in The Human Brain *** plant science,network analysis has similarly been applied to study the connectivity of plant components at the molecular,subcellular,cellular,organic,and organism *** of these multiscale networks contributes to our understanding of how genotype determines *** this review,we summarized the theoretical framework of plant multiscale networks and introduced studies investigating plant networks by various experimental and computational *** next discussed the currently available analytic methodologies and multi-level imaging techniques used to map multiscale networks in ***,we highlighted some of the technical challenges and key questions remaining to be addressed in this emerging field.

关键词： multiscale network connectivity cytoskeleton membrane contact site organelle interaction multicellularity connectome cytoarchitecture topological analysis multi-level imaging techniques

CEPC Technical Design Report

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Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed Xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai Yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci Xiao-Jun Bi Yuanjie Bi Tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert Maarten Boonekamp Marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia Hua Cai Wenyong Cai Wujun Cai Yijian Cai Yizhou Cai Yuchen Cai Haiying Cai Huacheng Cai Lorenzo Calibbi Junsong Cang Guofu Cao Jianshe Cao Antoine Chance Xuejun Chang Yue Chang Zhe Chang Xinyuan Chang Wei Chao Auttakit Chatrabhuti Yimin Che Yuzhi Che Bin Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen Guoming Chen Hua-Xing Chen Huirun Chen jinhui Chen Ji-Yuan Chen Kai Chen Mali Chen Mingjun Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen Tianlu Chen Wei Chen Xiang Chen Xiaoyu Chen Xin Chen Xun Chen Xurong Chen Ye Chen Ying Chen Yukai Chen Zelin Chen Zilin Chen Gang Chen Boping Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng Tongguang Cheng Yunlong Chi Pietro Chimenti Wen Han Chiu Guk Cho Ming-Chung Chu Xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin Hanhua cui Xiaohao cui Zhaoyuan cui Brunella D'Anzi Ling-Yun Dai Xinchen Dai Xuwen Dai Antonio De Maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi Dong Jianin AGH university of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui university HefeiAnhui Applied Physics Department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu university Institute of ScienceVaranasi Bandirma Onyedi Eylul university Bandirma Beihang university Beijing beijing Computational Science Research Center Beijing beijing Conveyi LTD Beijing beijing Glass Research Institute Co. LtdBeijing beijing Institute of Technology Beijing beijing normal university Beijing Brown university ProvidenceRI Budker Institute of Nuclear Physics Novosibirsk Cadi Ayyad university Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo university Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central China normal university WuhanHubei Central South university ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan China academy of engineering physics MianyangSichuan China building materials academy Beijing China Center of Advanced Science and Technology Beijing China Institute of Atomic Energy Beijing China Jiliang university HangzhouZhejiang China Nuclear Instrument CO. LTDBeijing China university of Geosciences Beijing China university of Geosciences WuhanHubei China university of Mining and Technology XuzhouJiangsu China West normal university NanchongSichuan Chongqing university Department of PhysicsChongqing Chulalongkorn university Bangkok City university of Hong Kong Department of PhysicsHong Kong Cockcroft Institute Daresbury Cornell university IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille Dalian Minzu university DalianLiaoning Dalian university of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov laboratory of Nuclear Problems of Joint Institute for Nuclear Research(DLNP jinR) Dubna East China university Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by China,fostered through extensive collaboration with international *** complex comprises four accelerators:a 3..GeV Linac,a 1.1 GeV Damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The Linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 3..MW per beam,it can achieve a luminosity of 5×10^(3..cm^(-2)s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13..b^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3..illion Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2015)and the Conceptual Design Report(CDR,2018),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2027-2028,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-203...

关键词： initiated exceeding precise