无偏估计

In a simple random sampling, the sample mean is an unbiased estimate of the population mean.

在简单随机抽样中，样本均值是总体均值的无偏估计。

Futures price is the unbiased estimate of expected spot price, which is based on the function of risk transferring.

期货价格是未来现货价格的无偏估计，这是建立在风险转移功能基础之上的。

Acquired conclusion was that the sample mean value submitted to normal distribution, and the sample variance was composed of a number of linear sum of random variable submitted to Chi-Squared distr.

得出的结论是：样本均值服从正态分布，样本方差由若干个服从卡方分布的随机变量的线性之和组成；样本均值的期望等于各管落点期望的算术平均值，方差为各管方差的算术平均值；样本方差是各管落点总体平均方差的无偏估计，方差与各管落点散布的差异相关；样本均值与方差相互独立的充要条件是：各管落点属于独立同分布样本。

The so-called relay linear unbiased estimationmethod for theestimation of the scale parameter of the logistic distribution is considered.

本文对Logistic尺度参数还考虑了被称作接力线性无偏估计的方法。

Because of this, regular Least-square analysis method can not be used in this type of test.

本文根据客观特点，依据新的模型和最优线性无偏估计原理，对于这种试验提出了一种新的分析方法——一般最小二乘分析。

Not correct to say "5 percent is an unbiased estimate of the return of education".

不正确的说法：5%是教育汇报率的无偏估计值。

Best linear unbiased estimate method for type-I censored data is presented.

提出定时截尾数据最佳线性无偏估计方法。

Because of the importance of the detection of R-wave position, this paper also proposed a filtering method for exercise ECG signal, which is based on Wavelet Transform and Stein's Unbiased Risk Estimate. Our experimental results demonstrate that the myoelectric disturbances and baseline drift in EECG signal can be removed efficiently, which affords the solid foundation for the further evaluation and study of people's sub-healthy state in various vocations.

此外，由于心音和心电的所有参数分析都是基于心电R波的正确定位后进行的，作者结合小波变化和似然无偏估计，提出了运动心电信号的伪差消除法，经过实验论证，本算法能有效消除运动心电信号中的基线飘移和肌电干扰，为进一步研究分析评估不同行业人群的亚健康状态提供了新途径。

The clone programming algorithm has the superior capability in local and global search, and local minimums are refrained efficiently; cross validation has the unbiased estimator property, and therefore, the problems such as over training or insufficient training are avoided.

克隆规划算法是具有局部、全局搜索能力的优化算法，能有效避免陷入局部极值；交叉验证算法的无偏估计性抑制了训练过程中"过拟合"和"欠拟合"。

This method is distribution independent in terms of the power of the circuit and unbiased.

该方法与电路功耗的概率分布无关，而且是无偏估计。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。