查询词典 variance

In this study, we adopt a Scale-Invariant Gauss-Markov hyetograph that show the maximum likelihood estimator of the dimensionless hyeto graph. There are five significant principal components were extracted which explained total variance about 90%.

研究中采用具尺度不变性高斯马可夫雨型（Scale-Invariant Gauss-Markov，简称SIGM），并将此资料进行多变量统计分析，以主成份分析法萃取出设计雨型之五个主要成份，此五个主成份具有解释设计雨型总变异数之程度约为90%。

Let be a sequence of independent and identically distributed random variables,with mean and variance .

Corollary 4.2 设相互独立的随机变量服从同一分布，已知均值为，方差为。

Experiment results prove that this method can reduce the influence of illuminant variance, and it can improve the collective degree of the samples of the same class observably.

实验结果证明，这种特征提取方法可以在很大程度上去除光照条件的变换对人脸图像的影响，能够有效地实现光照不变特征提取，能够大幅度提高同一模式类的样本聚集度。

In the meantime,impulse response function and variance decompositions are used to research dynamic response feature.

同时，利用正交脉冲响应函数和方差分解分析了电力消费与影响因素的动态响应特征。

In arithmetic, an error, which, in its own individuality, may be inappreciable, produces at length, by dint of multiplication at all points of the process, a result enormously at variance with truth.

在算术中，一个错误，单就本身来说，可能算不了什么，但是把一道算题各部分的数字乘起来，最后就会算出一个跟实际数字天差地远的答数。

It eliminates the influence of independent variable by the use of regressional relationships and then it makes the variance analysis.

它利用回归的关系消除自变量不等的影响后，再进行方差分析。

Range of upper bound index on error state variance that is consistent with circular pole index is discussed for state estimation of a class of linear stochastic systems.

对一类连续线性随机系统的估计问题，研究了与圆形极点指标相容的误差状态方差上界指标的取值范围，从而给出直接判定方差上界指标与极点指标相容的一个充分条件。

The correlation analysis of diversity index indicated that variance index is affected by the number and uniformity of plant species.

对应用的多样性指数进行相关分析结果表明，变化度指数受物种数和均匀度的影响。

The result of variance analysis and regression showed that leaf area is the most variable index, and the others share a close coefficient of variation, about half of that in leaf area.

结果表明，叶面积的变异最大，其余4项指标变异程度接近，变异系数约为叶面积变异系数的1/2。

Robust estimation, RLS Estimation, M estimation, Independent observations, Correlated observations, Function model, Random model, Outliers analysis, Outliers Confirmation, Outliers Disposal, Infectant Distribution, Equivalent weights, Equivalent variance-covariance

稳健估计，稳健最小二乘估计， M 估计，独立观测，相关观测，函数模型，随机模型，粗差分析，粗差定位，粗差处理，污染分布，等价权，等价方差-协方差

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。