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APPROXIMATION: 作品数：1231被引量：1216H指数：13; 导出分析报告; 相关领域：理学更多>>; 相关作者：曹飞龙吴嘎日迪谢庭藩沈燮昌周颂平更多>>; 相关机构：北京大学宁夏大学西北工业大学中国计量学院更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家教育部博士点基金中国博士后科学基金更多>>

Variability Analysis for a Two-station Queueing Network in Heavy Traffic with Arrival Processes Driven by Queues: 《Acta Mathematicae Applicatae Sinica》2024年第2期445-466,共22页Jian CAO Yong-jiang GUO Kai-ming YANG; supported by the National Natural Science Foundation of China(No.11871116 and No.11971074).; The law of the iterated logarithm(LIL)for the performance measures of a two-station queueing network with arrivals modulated by independent queues is developed by a strong approximation method.For convenience,two arri...; 关键词：two-station queueing network the law of the iterated logarithm(LIL) strong approximation fluid approximation

Distribution Approximation of Shrinkage Estimate in Censored Regression Model via Randomly Weighting Method: 《Acta Mathematicae Applicatae Sinica》2019年第2期421-434,共14页Xian-hui LIU Zhan-feng WANG Yao-hua WU; partially supported by National Natural Science Foundation of China(Grant No.11101396);Anhui Provincial Natural Science Foundation(Grant No.1908085MA06); Censored regression("Tobit") model is a special case of limited dependent variable regression model, and plays an important role in econometrics. Based on this model, all kinds of methods for variable or group variabl...; 关键词：Censored regression model VARIABLE SELECTION ASYMPTOTIC properties randomly weighting

Scheduling Reclaimer Operations in the Stockyard to Minimize Makespan被引量：1: 《Acta Mathematicae Applicatae Sinica》2018年第3期597-609,共13页Chao WANG Xi-wen LU René SITTERS; Supported by the National Natural Science Foundation of China(No.11371137 and No.71431004); This paper considers a reclaimer scheduling problem in which one has to collect bulk material from stockpiles in the quay in such a way that the time used is minimized. When reclaimers are allowed to work on the same ...; 关键词：scheduling approximation algorithm performance ratio numerical simulation

On the Irrotational Approximation to Adiabatic Chaplygin Gas Dynamic System: 《Acta Mathematicae Applicatae Sinica》2018年第2期416-429,共14页LI WANG; Supported by the TianYuan Special Funds of the National Natural Science Foundation of China(Grant No.11226171);Discipline construction of equipment manufacturing system optimization calculation(Grant No.13XKJC01); In this paper we mainly study the difference of the weak solutions generated by a wave front tracking algorithm for the steady adiabatic Chaplygin gas dynamic system and the steady irrotational system. Under the hypot...; 关键词：irrotational approximation adiabatic Chaplygin gas dynamic system SEMIGROUP

Two-stage Local Walsh Average Estimation of Generalized Varying Coefficient Models: 《Acta Mathematicae Applicatae Sinica》2015年第3期623-642,共20页Neng-Hui ZHU; Supported by the National Natural Science Foundation of China(NSFC)(No.11471203);the Graduate Innovation Fund of Shanghai University of Finance and Economics(CXJJ-2013-459); In this paper we investigate the robust estimation of generalized varying coefficient models in which the unknown regression coefficients may change with different explanatory variables. Based on the B-spline series a...; 关键词：generalized varying coefficient regression Walsh-average B-spline approximation local polynomial two-stage method

Approximation by Complex q-Durrmeyer Polynomials in Compact Disks: 《Acta Mathematicae Applicatae Sinica》2014年第1期65-74,共10页N.I.Mahmudov Vijay Gupta; In this paper, the order of approximation and Voronovskaja type results with quantitative estimate for complex q-Durrmeyer polynomials attached to analytic functions on compact disks are obtained.; 关键词：q-complex Durrmeyer polynomials q-integers q-derivatives Voronovskaja-type asymptotic for-mula

Efcient Estimation of Varying Coefcient Seemly Unrelated Regression Model: 《Acta Mathematicae Applicatae Sinica》2014年第1期119-144,共26页Qun-fang XU Yang BAI; Xu’s research was supported by Key Academic Project from Bureau of Statistics of Zhejiang Province(201325);Research Project of the National Statistics(2013LY119);Bai’s work was partially supported by National Natural Science Funds for Young Scholar(No.11001162);Shanghai University of Finance and Economics through Project 211 Phase IV and Shanghai Leading Academic Discipline Project(No.B804); In this paper, we propose a class of varying coefficient seemingly unrelated regression models, in which the errors are correlated across the equations. By applying the series approximation and taking the contemporane...; 关键词：series approximation varying coefficient seemingly unrelated regression contemporaneous correlation asymptotic normality

On the Isentropic Approximation to Two-dimension Isothermal Euler System: 《Acta Mathematicae Applicatae Sinica》2014年第1期245-256,共12页Li WANG; Supported by the TianYuan Special Funds of the National Natural Science Foundation of China(Grant No.11226171);Research Award Fund for Young Teachers in Shanghai Higher Education Institutions(No.shdj008);the Fundamental Research Funds for Shanghai Dianji University(Grant No.11C417); In this paper we mainly study the difference between the weak solutions generated by a wave front tracking algorithm to isentropic and non-isentropic isothermal Euler system of steady supersonic flow. Under the hypoth...; 关键词：isentropic approximation isothermal Euler system SEMIGROUP

Approximation to the Distribution of the Least Squares Estimators in Two Dimensional Cosine Models by Randomly Weighted Bootstrap: 《Acta Mathematicae Applicatae Sinica》2013年第4期765-776,共12页Yuan-yuan ZHAO Rui-xing MING Yao-hua WU; Supported by the National Natural Science Foundations of China(No.11271193);Humanities and Social Sciences Planning Foundation of Chinese Ministry of Education(11YJA910004);Natural Science Foundation of the Jiangsu Higher Education Institutions of China(11KJB110005);Key Research Base for Humanities and Social Sciences of Zhejiang Provincial High Education Talents(Statistics of Zhejiang Gongshang University); Recently, Kundu and Gupta （Metrika, 48：83 C 97, 1998） established the asymptotic normality of the least squares estimators in the two dimensional cosine model. In this paper, we give the approximation to the genera...; 关键词：two dimensional model least squares estimator Bayesian bootstrap random weighting method

Bayesian Estimation for Generalized Exponential Distribution Based on Progressive Type-I Interval Censoring被引量：4: 《Acta Mathematicae Applicatae Sinica》2013年第2期391-402,共12页Xiu-yun PENG Zai-zai YAN; Supported by the National Natural Science Foundation of China (No. 11161031);Natural Science Foundation of Inner Mongolia (2010MS0116);Higher school science and technology research project of Inner Mongolia (NJ10085); In this study, we consider the Bayesian estimation of unknown parameters and reliability function of the generalized exponential distribution based on progressive type-I interval censoring. The Bayesian estimates of p...; 关键词：Bayesian inference Lindley＇s approximation Monte Carlo method

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