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CHANGE-POINT: 作品数：38被引量：81H指数：5; 导出分析报告; 相关领域：自动化与计算机技术理学更多>>; 相关作者：郭鹏许军邹长亮关毅璋更多>>; 相关机构：华北电力大学龙源(北京)风电工程技术有限公司南方医科大学南方医院南方医科大学更多>>; 相关期刊：《Wuhan University Journal of Natural Sciences》《Transactions of Nanjing University of Aeronautics and Astronautics》《电力科学与工程》《Acta Mathematicae Applicatae Sinica》更多>>; 相关基金：国家自然科学基金国家高技术研究发展计划国家教育部博士点基金国家重点基础研究发展计划更多>>

Parameter optimization of complex network based on the change-point identification: 《The Journal of China Universities of Posts and Telecommunications》2023年第6期22-29,共8页Xu Xingtao Tao Jiagui; supported by the Science and Technology Foundation of State Grid Corporation of China(SGCC)(J2022116)。; This paper proposes a novel method for the parameter optimization of complex networks established through coarsening and phase space reconstruction.Firstly,we identify the change-points of the time series based on the...; 关键词：complex network CHANGE-POINT COARSE-GRAINING embedding dimension

Study of the Impact of Climate Change on Water Resources in the Sangha Watershed at Ouesso Hydrological Station, Republic of the Congo-Brazzaville (1961-2020): 《Journal of Water Resource and Protection》2023年第11期611-630,共20页Guy Blanchard Matete Moukoko Christian Ngoma Mvoundou Joseph Mangouende Roddy Lendzea Christian Tathy; The Sangha River basin is the largest sub-basin of the Congo River basin, which drains the northern part of the Republic of the Congo-Brazzaville. It is the most important economic zone in this part of the country, wi...; 关键词：Sangha Watershed Republic of the Congo Pettitt Test Buishand Test CHANGE-POINT Recession Coefficient

Group LASSO for Change-points in Functional Time Series: 《Acta Mathematica Sinica,English Series》2023年第11期2075-2090,共16页Chang Xiong CHI Rong Mao ZHANG; NSFC(Grant No.12171427/U21A20426/11771390);Zhejiang Provincial Natural Science Foundation(Grant No.LZ21A010002);the Fundamental Research Funds for the Central Universities(Grant No.2021XZZX002)。; Multiple change-points estimation for functional time series is studied in this paper.The change-point problem is first transformed into a high-dimensional sparse estimation problem via basis functions.Group least abs...; 关键词：Basis function CHANGE-POINT functional time series information criterion group LASSO(GLASSO)

Screening-Assisted Dynamic Multiple Testing with False Discovery Rate Control: 《Journal of Systems Science & Complexity》2023年第2期716-754,共39页MUSHTAQ Iram ZHOU Qin ZI Xuemin; supported by the National Natural Science Foundation of China under Grant Nos.11771332,11771220,11671178,11925106,11971247;the National Science Foundation of Tianjin under Grant Nos.18JCJQJC46000,18ZXZNGX00140;the 111Project B20016;Mushtaq was also supported by the Fundamental Research Funds for the Central Universities。; In the era of big data,high-dimensional data always arrive in streams,making timely and accurate decision necessary.It has become particularly important to rapidly and sequentially identify individuals whose behavior ...; 关键词：CHANGE-POINT false discovery rate high-dimensional datastreams large-scale inference sequential analysis weak dependence structure

Reliability Evaluation of Two-Phase Degradation Process with a Fuzzy Change-Point: 《Journal of Shanghai Jiaotong university(Science)》2022年第6期867-872,共6页LIU Kai DANG Wei ZOU Tianji LÜCongmin LI Peng ZHANG Haitao; the National Natural Science Foundation of China(No.61703391)。; For some products,degradation mechanisms change during testing,and therefore,their degradation patterns vary at different points in time;these points are called change-points.Owing to the limitation of measurement cos...; 关键词：two-phase degradation Wiener process fuzzy change-point membership function reliability evaluation statistical analysis

Monitoring Mean and Variance Change-Points in Long-Memory Time Series被引量：2: 《Journal of Systems Science & Complexity》2022年第3期1009-1029,共21页CHEN Zhanshou LI Fuxiao ZHU Li XING Yuhong; supported by the National Natural Science Foundation of China under Grant Nos.11661067,11801438,71661028,61966030;the Natural Science Foundation of Qinghai Province under Grant No.2019-ZJ-920。; This paper proposes two ratio-type statistics to sequentially detect mean and variance change-points in the long-memory time series.The limiting distributions of monitoring statistics under the no change-point null hy...; 关键词：Change-point monitoring long-memory time series ratio-type statistic sieve bootstrap

Evaluating multiple parameters dependency of base temperature for heating degree-days in building energy prediction: 《Building Simulation》2021年第4期969-985,共17页Qinglong Meng Yuan Xi Xingxing Zhang Monjur Mourshed Yue Hui; The authors wish to thank the financial support received from various sources for conducting this research;This work was supported by the Key Research and Development Program of Shaanxi(No.2020NY-204);the Fundamental Research Funds for the Central Universities,CHD(No.300102289103).; To improve the prediction accuracy of heating demand, an appropriate base temperature should be estimated before using the heating degree-days (HDD) approach. This study collected the measured data for gas consumption...; 关键词：base temperature heating degree-days residual temperature change-point regression gas consumption

Pseudo-Maximum Likelihood Estimation in the Hazards Cure Model with a Single Change Point for Current Status Data: 《Journal of Mathematical Research with Applications》2020年第3期320-330,共11页Bing WANG Xiaoguang WANG; the National Natural Sciences Foundation of China(Grant No.11471065).; The change-point hazards model has received much attention, since it can not only display the impacts of treatments or medical breakthroughs more directly, but also provide the time point when those impacts occur. In ...; 关键词：current status data change-point hazard model cure fraction pseudo-maximum likelihood

基于Change-Point的风电数据挖掘算法研究被引量：14: 《太阳能学报》2020年第5期136-141,共6页胥佳李韶武王桂松刘瑞华朱耀春; 中国电机工程学会“青年人才托举工程”(J2B2017304)。; 风电机组运行过程中,一些故障导致设备状态发生改变,状态的改变发生在一个持续的时间序列中,找到变化点的时间对于故障回溯及根本原因分析具有重要价值。该文研究风电信号及状态时序变化的特点,引入统计学中的Change-Point算法,通过划...; 关键词：数据挖掘数据采集与监视控制(SCADA)系统风电机组 CHANGE-POINT 置信度

Adaptive Elastic Net结合加速失效时间模型在亚组识别中的应用被引量：5: 《南方医科大学学报》2019年第10期1200-1206,共7页康佩许军黄福强刘颖欣安胜利; 国家自然科学基金(71673126);大学生创新创业训练计划项目(201912121020)~~; 目的针对临床试验中的生存数据,基于加速失效时间模型提出一种亚组识别方法。方法将Adaptive Elastic Net应用于加速失效时间模型(称为惩罚模型),通过检验协变量与治疗组别的交互项来识别亚组相关协变量。采用基于极大似然的change-poin...; 关键词：加速失效时间模型适应性设计 change-point算法精准医疗 ADAPTIVE ELASTIC NET

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