There are two findings summarized from previous studies:(1) the least squares estimator is a common choice of researchers, but under an unequal probability design, the estimator is biased,(2) the probability weighted estimator is consistent but may have a large variance.

過去的研究發(fā)現(xiàn)：(1)在不等機率抽樣時A片大全片在线看,欧美淫荡...，一般常用的最小平方法所得到的回歸參數(shù)估計式并非不偏估計式欧美视频一区二区视频在线；(2)機率加權最小平方法可以改善不偏性，然卻增加估計的變異程度国产极品白嫩精品久久久久。

Decomposable sets ; decomposable composition; Bochner integral; RN-property

論文導師薛小平亚洲色图一区二区，論文學位碩士，論文專業(yè)基礎數(shù)學

Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing

作者：楊小平一级特黄AA片免费观看，徐建國作者單位：中國疾病預防控制中心欧美日韩国产免费午夜在线观看，北京 102206。

The practice of the radical point of view of Marxism of Comrade Xiaoping basis and Chinese socialism revolution and construction , made compendious and scientific treatise to this .

小平同志依據(jù)馬克思主義的基本觀點和中國社會主義革命和建設的實踐酒店情侣A级毛片，對此作出了簡明而科學的論述久久国产亚洲欧美久久。

The LMS algorithm is employed and its convergence behavior is also examined.

我們亦選用最小平方法以適應性地實現(xiàn)此方案并分析其收歛特性。

In the ***, all types and fundamental principles of Radon transform are summarized systematacially. This *** starts from the general linear Radon transform, and then researches how to use the damped least square method to find the solution of the forward transform. However, the least squares smoothing effect will lead to a certain degree of trails in the data of Radon domain, which led to the application\'s limitations. After that the implementation in Radon domain and relative merits of linear Radon transform, parabolic Radon transform and polynomial Radon transform which have time invariance are introduced, the conjugate gradient method that can solve numerical solution is also given. And then the high resolution Randon transform is discussed, it introduces the regularization theory and Bayes principle into inversion, which successfully remove the negative affect caused by discrete Radon transform. Finally, we introduce the optimal weighting similar coefficient Radon transform, which adapt to the time variant quality of hyperbolic Radon transform.

本文系統(tǒng)總結了Radon變換的各種類型及其基本原理日本三级网站www中文字幕，從τ- p變換(即一般線性Radon變換)出發(fā)直接在线免费看黄网站，研究利用阻尼最小二乘平方法求解其正變換，但是最小平方法的平滑作用會導致Radon域數(shù)據(jù)存在一定程度的拖尾效應AV网站AV爱爱爱，給這種方法的應用帶來了很大的局限性爱爱网站永久免费；然后先容了具有時不變性的線性、拋物和多項式Radon變換在頻率域的實現(xiàn)及其優(yōu)缺點久久久久99精品免费，給出了求解其數(shù)值解的共軛梯度算法女被操网站；接著討論了高分辨率Radon變換，它把正則化思想和貝葉斯原理引進到了反演中91久久精品一区二区三区，很好的克服了離散Radon變換產(chǎn)生的截斷效應對結果的不利影響欧美在线视频干美女；最后先容了適應雙曲Radon變換時變性質(zhì)的高分辨率最優(yōu)相似系數(shù)加權Radon變換。

The simulation results also find that the Quasi-Aitken weighted least squares estimator has a smaller asymptotic variance than least squares estimator.

研究結果顯示機率加權最小平方法與Quasi-Aitken機率加權最小平方法的回歸參數(shù)估計式皆具有不偏性欧美一区二区激情，其中Quasi-Aitken機率加權最小平方法的回歸參數(shù)估計式的變異最小黄色网站点击进入。

The simulation results show that probability weighted least squares estimator and Quasi-Aitken weighted least squares estimator are unbiased estimators of regression coefficients.

研究方法系采用Monte Carlo模擬方式模擬比較最小平方法、分層加權最小平方法日韩偷拍精品另类视频、機率加權最小平方法及Quasi-Aitken機率加權最小平方法在分層不等機率抽樣下的表現(xiàn)被窝网一级毛片。

An econometric estimation technique involving minimizing the sum of the squares of the vertical distance between the observed data points and the regression line.

最小平方法，最小二乘法計量經(jīng)濟學中的一種估算技術99热思思在线国产，使觀察數(shù)據(jù)各點和回歸線之間的垂直距離的平方之和為最小国产激情自拍。

Read this book , can fine fine the character of the bosom that savours Xiaoping , Xiaoping .

讀這本書日韩妓女精品影院视频在线，可以細細品味小平的襟懷，小平的人格91在线国内在线自产。

least square error approximation：最小(平)方(誤)差近似法

least square 最小二乘方 | least square error approximation 最小(平)方(誤)差近似法 | least square method 最小二乘法

I want a crew cut：我要剪小平頭

I want my hair in a ponytail.我要綁馬尾 | I want a crew cut.我要剪小平頭 | custom海關

small flattener：小平錘

small female crab 小雌蟹 | small flattener 小平錘 | small flow and high lift pump 小流量高揚程泵

Ordinary least squares estimator：普通最小平方法估計式

Ordinance of Trade 貿(mào)易敕令 | Ordinary least squares estimator 普通最小平方法估計式 | Ordinary least squares method 普通最小平方法

Two-stage least squares：兩段最小平方法

two-stage joint 雙重防水節(jié)點 | two-stage least squares 兩段最小平方法 | two-stage least squares estimator 兩段最小平方估計量

Two-stage least squares：兩階段最小平方法回歸

Test Item Analysis 項目分析 | Time Series 時間序列分析 | Two Stage Least Squares 兩階段最小平方法回歸

least squares method：最小平方法 / 最小二乘法

Least Squared Criterion,最小二乘方準則 | Least squares method最小平方法 / 最小二乘法 | Least-absolute-residuals estimates, 最小絕對殘差估計

Echinocactus moelleri：{小平}

Echinocactus horizonthalonius {大平} | Echinocactus moelleri {小平} | Echinocactus platyacanthus {鬼頭}{弁慶}{春雷}{巖}

Iteratively reweighted least squares：重複再加權最小平方法

Iterative minimization methods 反覆最小化方法 | Iteratively reweighted least squares 重復再加權最小平方法 | Ito process 伊托隨機過程

ultrafiche：超縮微膠片 超縮微平片 超小平片

ultrafax 電視傳真電報 | ultrafiche 超縮微膠片 超縮微平片 超小平片 | ultrafiltrate 超濾濾液 超濾液