empirical mean 中文意思是什麼
empirical mean
解釋
經驗平均值-
Empirical distribution function of fatigue life based on harmonic mean
基於調和均值的疲勞壽命經驗分佈函數 -
Empirical likelihood ratio confidence regions for mean under strongly stationary m dependent samples
相依樣本下均值的經驗似然比置信區間 -
The above algorithm forms a double - two - stage iteration, as following : the results of monte carlo stimulation show that the double - two - stage iteration algorithm is more effective than empirical logistic regression after item and ability parameters recovery study. there are three advantages about the new method : first. the new method can be applied to estimate fewer items ; secondly, a test including fewer unusual response patterns can also be evaluated ; thirdly, the results compared with homogeneous software dealing with 2plm are accepted using mean absolute error as the criterion
這種新方法有以下三個優點：項目數很少時參數估計的結果也較穩定；能處理測驗中含有少量特殊反應模式（見第二章）的參數估計；以估計值和真值之差的絕對值（平方）的平均值作為估計對真值的修復能力為指標，新方法的參數估計結果與同類流行軟體相比，修復能力不相上下；特別地，新的參數估計方法可以用於多級評分項目gpcm ，並為估計題組項目開辟了另一條道路。 -
In the framework of the markowitz mean - variance analysis, the modern portfolio theory is applied to the empirical study of the chinese stock market with emphasis of risk control and risk diversification
在馬克威茨的均值-方差分析體系下，本文以投資人的風險分散和風險控制為主線探索現代資產組合理論在我國股票市場的應用。 -
Based on the about 50 years development of mean - variance portfolio theory, this paper analyzes and discusses the relationship between return and risk of portfolios by using theoretical analysis and empirical study
本文以五十年來均值-方差資產組合理論的演進和發展為線索，採用理論分析和實證研究的方法，分析和探討資產組合的收益-風險關系。 -
Upon using an artificial neural network ( ann ) a new short - term climate forecast model with the monthly mean rainfall in june in the north of guangxi as predictand is established making empirical orthogonal functions ( eof ) to the 36 predictors ( 15 ssa predictors, 21 500hpa height predictors ) with over 0. 05 significant correlation level of previous 500hpa height and sea surface temperature ( sst ) field, and selecting the high relative principal components, at the same time, a new approach of constructing ann learning matrix is developed. predictive capability between the new model ( principal components ann model ) and linear regression model for the same predictors is discussed based on the independent samples and historical samples
本文通過對廣西北部6月平均降水量（預報量）同北半球月平均500hpa高度場和北太平洋月平均海溫場進行相關普查，選取了前期36個同預報量相關顯著水平達到0 . 05以上的預報因子（ 15個海溫場預報因子， 21個高度場預報因子） ，並運用自然正交函數展開方法對這36個前期預報因子展開，取其中同預報量相關程度高的主成分，結合人工神經網路技術，提出了一種新的構造人工神經網路學習矩陣的方法，建立了一種新的短期氣候預測模型。 -
The empirical analysis of china ' s real estate market within the above framework or paradigm indicates no across - the - board bubble ; climbing housing price or high housing price / income ratio does not necessarily mean bubble
按照上述框架或範式實證分析，得出結論：中國房地產不存在全局性泡沫，亦即房價上漲，房價收入比高不一定就是泡沫。 -
Based on previous study of pollutant dispersion in vertical direction, an empirical formula for determining the mean value of turbulence viscosity coefficient in numerical simulation of tides in vertical direction was worked out and applied to 3 - d numerical simulation of tides for changxing island reach in yangtze river estuary
摘要在已有污染物垂向擴散過程研究的基礎上，提出了確定潮流數值模擬中垂向紊動黏性系數的垂線平均值的經驗方法，並將此方法應用到長江口長興島段的潮流三維數值模擬中。 -
We find that fitness of returns on stocks to non - normal stable distributions in china stock market is very good by fitness test ; study measurements of return and risk of a portfolio conditional on non - normal stable distributions and put forward mean - scale parameter model ; find that mean - scale parameter model can explain asset allocation puzzle by empirical analysis
通過擬合優度檢驗發現我國的股票收益率與非正態穩定分佈的擬合效果非常好；研究了非正態穩定分佈條件下投資組合收益和風險的度量，建立了均值尺度參數投資組合模型；通過實證分析發現均值尺度參數模型能夠解釋資產配置之謎。 -
Based on the experimental and numerical simulation results, a new equivalent plate thickness formula and new empirical formulas for the mean crushing load are given
基於實驗結果和數值模擬的結果，給出了新的等效板厚和平均壓潰載荷計算公式。
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