variance covariance 中文意思是什麼

variance covariance 解釋
變異數協方差
  • variance : n. 1. 變化，變動，變更；變度，變量；【統計】（平）方（偏）差。2. （意見等的）相異；不和，沖突，爭論。3. 【法律】訴狀和供詞的不符。
  • covariance : n. 【統計學】協方差，協變性；共離散。
  1. The additive genetic variance of the same character, estimated from the covariance of half sibs, was 0. 9602.

    從半同胞協方差估計出來的，同一性狀的加性遺傳方差為09602。
  2. The additive genetic variance of the same character, estimated from the covariance of half sibs, was 0. 9602

    從半同胞協方差估計出來的，同一性狀的加性遺傳方差為0 9602 。
  3. When compared with single factor analysis of variance, covariance analysis reduced efficacy evaluation error resulting from uneven weed distribution in the field

    結果表明，與按單因素試驗方差分析相比，協方差分析方法可以減小因雜草田間分佈不均勻而導致的調查誤差。
  4. Variance and covariance components of each effect were estimated by minimum norm quadratic unbiased estimation ( minque ) method

    用minque法估計各項效應的方差和協方差分量，用aup法預測隨機效應。
  5. All these estimates are feasible unbiased estimates. we use the quotient of the determinant of the variance - covariance matrix of the feasible unbiased estimates, that is, a kind of relative efficency to compare these esti - mates. the results have instructive significance for practice

    我們應用這些估計的協方差陣的行列式之商，即一種相對效率比較了這些估計的優劣，所得結果對實際應用具有一定指導意義。
  6. Furthermore, utilizing the characteristic that filtering error covariance expresses filtering precision and the principle of information conservation, the dynamic and reasonable distribution of distributed tracks weight coefficient is accomplished. jerk model and strong tracking filter is organically assembled, and based on spatio - temporal synthetically analysis and lme, a self - learning estimation method of the system measurement variance is given. the method improves obviously the

    3 、將jerk模型與強跟蹤濾波演算法有機地結合，並利用時空綜合分析和極大似然估計的思想推導出了一種系統量測方差自學習修正方法，以優化強跟蹤濾波演算法中次優漸消因子和濾波增益的在線選擇，同時根據多傳感器數據融合具有改善濾波精度的性質，進而給出一種基於jerk模型的多傳感器數據融合演算法。
  7. Discusses the characteristic values on individual stock risk with the standard deviation, variance ( 2 ), standard deviation coefficient ( cv ) and coefficient measurement, construct the individual on stock ' s statistics index system on investment risk. 2. discuss the characteristic of standard deviation, variance, variance - covariance matrix to measure the investment risk of stock portfolio

    第二章「證券投資風險的度量」分為三個小節： 1 、討論單個證券風險用標準差（ ） 、方差（ ~ 2 ） 、變差系數（ cv ）以及系數度量，構造了單個證券的投資風險統計指標體系； 2 、討論了用標準差和方差、方差?協方差矩陣、方差?協方差矩陣的特徵值來度量組合證券的投資風險； 3 、計算了衡量證券組合系統性風險的系數值，並分析了系數的含義和預測能力的可靠性。
  8. A real - time estimation of a prior variance - covariance of gps observations is developed for the ( near ) instantaneous ambiguity resolution for short - baselines, which improves the stochastic model of the observations, and then the success rate and the reliability of ambiguity resolution

    針對短基線模糊度的快速解算，提出了一種實時估計觀測值方差-協方差矩陣的方法，改進了觀測值的統計模型。算例顯示這種方法能提高模糊度瞬時解算的成功率。
  9. When the covariance matrix formed by securities yields is non - oppositive definite, we provide the model with transaction costs, which risk is variance matrix risk. when the covariance matrix formed by securities yields is not exist, the risk we use is absolute deviation risk and semi - absolute deviation, which is differ with traditional risk such as variance matrix risk or semi - variance matrix risk

    在證券收益率協方差陣不一定存在時，給出了不同於以往以證券收益率間的方差或是半方差為風險度量指標而是以絕對離差為風險指標和以半絕對離差為風險指標的含有交易費用的證券組合投資模型。
  10. In this paper, we discussed the procedures of quantiles, maximum - likelihood, probability weighted moments, moments, least square, the best linear unbiased estimate, good linear unbiased estimation, and the best invariant estimate to the parameters of gumbel distribution, then give out the expectation and variance - covariance respectively. we compared the statistical behavior of these eight estimate procedures not only theoretically but also in the monte - carlo simulation

    本文利用分位數法、極大似然法、概率加權矩法、矩法、最小二乘法、最佳線性無偏估計法、簡單線性無偏估計法、最好線性同變估計法對gumbel分佈中的參數進行估計，分別給出了這八種估計量的期望、方差和協方差。
  11. An adaptive kalman filter combining variance component estimation with covariance matrix estimation based on moving window

    基於移動開窗法協方差估計和方差分量估計的自適應濾波
  12. Panel data model is an important linear model in economics, finance, biology, medicines and other fields. in recent twenty years, statistical in - ferrence about this model attracts many statisticians. in this paper, we first generalize the latest development of parameter estimation in this field, then focus on parameter estimation in the panel model with individual effect and time effect. many articles researched the parameter estimation of the regression coefficents in the case that both individual effect and time effect are random, but in some conditions, it is more reasonable if we suppose either of them is fixed. this paper is based on this hypothesis to research the estimations of the coefficents. the variance - covariance matrix still include parameter of variance in this condition, so our purpose is to look for feasible estimations

    Panel數據模型是一類具有重要應用的線性統計模型，它在經濟、金融、生物、醫學等領域都有廣泛的應用。近二十余年來，關于這種模型的統計推斷吸引了很多統計學家。本文首先概述了這一領域參數估計方面的最新發展，然後集中討論了既含有個體效應，又有時間效應的panel數據模型的參數估計。
  13. Solution method of matrix units of genetic variance and covariance in estimating cows ' genetic value

    協方差的最優二次型無偏估計
  14. The var model could be formulated hi 3 ways : historical stimulation method, variance - covariance approach and monte - carlo simulation

    Var模型的建立有歷史模擬法、方差?協方差法和蒙特卡羅模擬法，本文在j
  15. Linear models are especially important statistical models, including linear regression model, variance and analysis, covariance and analysis, and variance and component one etc.

    線性模型是很重要的一類統計模型，它包括線性回歸模型、方差分析模型、協方差分析模型和方差分量模型等等。
  16. Given the condition of the fusion tracking under multiple sensors non - linear measurements, this paper applies the conclusion of the analysis of single sensor decoupled cmkf, tss filter and tss variance to the fusion tracking system. it also studies their application in basic measurement fusion and track fusion algorithm, and covariance recursive formula of track fusion is deduced. which offers a new way for steady - state performance evaluation of multi - radar fusion tracking

    考慮多傳感器非線性觀測下的融合跟蹤，論文將單傳感器解耦cmkf 、 「暫穩態」濾波器以及「暫穩態」方差分析的結論推廣應用到融合跟蹤中，研究了其在基本的量測融合和航跡融合演算法中的應用，推導了航跡融合中互協方差的遞推公式和「暫穩態」公式，為多雷達融合跟蹤的穩態性能估計提供了一種新途徑。
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