查询词典 efficient estimator

To prove that OLS estimators are asymptotically efficient, one needs to (1) present an estimator that is consistent but its variance is larger.

为了证明OLS估计量是渐近有效的，我们需要(1)给出一致的估计量但证明它有更大的方差。

The null hypothesis is that the efficient estimator is a consistent and efficient estimator of the true parameters.

2， 如果上述理论逻辑通的话，将内生变量 X 作为解释变量， IV 和其他变量（ X2）作为解释变量，看 IV 是否显著，它应该显著。

Simulation results show that the ML estimator produces more efficient than the LS estimator.

仿真结果表明，对于此类误差最大似然估计比最小二乘估计有效性更好。

Simulation results show that theL estimator produces more efficient than the LS estimator.

仿真结果表明，对于此类误差最大似然估计比最小二乘估计有效性更好。

Performance simulation of the proposed estimator including Mean Squares Error of channel and uncoded Bit Error Rate have been taken, and the results show the estimator is efficient and very flexible.

对信道盲估计的均方误差和由此算法获得的信道的状态信息对无编码的OFDM系统进行解调的误比特率进行了仿真，结果表明提出的算法是有效的并具有很好的灵活性。

Then an adaptive, efficient unbiased estimator of Hurst index based on multiresolution wavelet analysis and weighted regression is presented.

针对基于小波的Hurst指数估计方法的自适应问题，结合方差分析给出了一种有效的解决方法，从而提出了自适应的参数估计方法，并且该方法在一般意义上是无偏的。

If the two models display a systematic difference in the estimated coefficients, then we have reason to doubt the assumptions on which the efficient estimator is based.

同时，如果在多个 IV 中，有一个是确定为外生的，那么，可以用 Sargan test of overidentifying restrictions 来检验其他的 IV 是不是确实是外生的。

In particular, for recurrent event data, we proposed a novel nonparametric estimator of the survival function and obtained an efficient estimator of the expected total number of events for counting processes. Also we established asymptotic properties of these estimators and investigated nonparametric estimation of survival functions, density functions and hazard functions under various types of incomplete data.

在重复事件发生的情况下，创新地提出了一种生存函数的非参数估计，获得了计数过程中预期事件总数的估计以及这些估计的大样本性质，并在其他各种不完全数据下对生存函数，概率密度和失效率函数等非参数估计进行了深刻研究。

Then the LS channel estimator obtained simply by space time block training sequence was projected to the signal subspace to get an estimator that was efficient but of low complexity.

在此基础上，对空时分组训练序列简单得到的LS信道估计器进行子空间投影，得到了复杂度较低同时性能良好的信道估计。

We propose a theoretical framework to predict the impact of inward FDI on the host country's incumbent firms' price-cost margins, according to the mode of entry of FDI We then investigate empirically the competitive discipline effect exerted by both imports and FDI on manufacturing plant-level price-cost margins in the UK, for the period 1991-2001. We estimate different specifications of the price-cost margin equation with both fixed-effects instrumental panel estimator and efficient generalized method of moments estimator with clustering correction.

通过构建理论模型预测FDI的不同进入模式对东道国企业价格－成本盈余(Price-Cost Mar-gin， PCM)的影响，以及采用固定效应工具面板和经过聚类修正的有效广义矩等不同估计模型，对1991-2001年间的进口和FDI对英国制造业企业PCM竞争规制效应进行的实证研究表明：绿地FDI对利润有负向影响，而并购FDI对利润的影响为正，即绿地FDI对PCM有规制效应，并购FDI会增加PCM。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了