The optimizer can then compare the input variable values to catalog statistics and compute a better selectivity estimate for predicates.
然后,优化器可以将输入变量的值与编目统计进行比较,并为谓词计算出一个更好的选择估计。
Often this is the case because the input data that a particular estimation method requires may be unavailable or inaccurate at the time when an estimate is needed.
这通常是因为在需要评估时,评估方法需要的特定的输入数据可能不可用,或者精度不够。
If your time estimate is not in the drop-down menu, choose More, and to get a small input screen where you can enter your estimate.
如果您的时间估计值没有出现在下拉菜单中,那么您可以选择More,就可以得到一个小的输入界面,您可以在里面输入您的估计值。
In the absence of these policies, we estimate that labor input would have been about 20% higher than it was at the end of the 1930s and would have returned the economy to trend by that time.
如果没有这些法案,我们估计劳动力投入水平本可较1930年代末高出20%,并能够使经济在当时就走上正轨。
This staffing model (or "map" if the word "model" sounds too formal) will provide input to the overall cost estimate by establishing timing for the costs.
这个人员配备模型(如果“模型”这个词听起来太正式,可换成“图”)将通过对成本适时的评估提供所需的全部成本评估。
In this case optimally weighted LS estimate is not a linear estimate of a parameter given input and observation anymore and can not be compared with linear minimum variance estimate.
在这种情况下,最优加权最小二乘估计变成关于观测和输入的非线性估计,且与线性最小方差估计不可比。
The deconvolution filter is made up of an output observer and a linear mapping, where the latter reflects the internal connection between the unknown input signals and the output estimate error.
反卷积滤波器的结构等效于输出观测器和一个线性映射,该线性映射反映了未知输入与输出估计误差之间的内在联系。
As a result, the method can be used to analyze the devotion and output with multi-input and single output, and can get a reasonable estimate result by transformed sample set using DEA model.
结果表明,此方法可用于多输入、单输出的投入产出分析,对变换后的样本集使用DEA模型可得到一个单元的合理评价结果。
BP neural networks with pattern extended input are used to estimate control parameters, and the learning speed is increased.
并采用具有模式增强输入的BP网络进行决策参数估计,加快学习的收敛。
Nonlinear physical parameters of the docking mechanism-inertial, damping and stiffness matrices, are identified by direct parameter estimate(DPE)method with input-output data of the system.
采用直接参数识别方法(DPE)由系统的输入、输出数据识别空间对接机构的物理参数:惯量矩阵、阻尼矩阵和刚度系数矩阵。
The estimator utilizes constraints on both the subspace and the errors of steering vectors to design a narrow filter. The filter outputs the spectral estimate with the filtering vector as its input.
该方法根据空间约束和导向矢量误差约束获得相应的窄带滤波器,并利用其对Capon滤波矢量进行滤波得到谱估计。
It also presents the quantity of concurrent stream, covering user, access subscriber and budgetary estimate of corresponding input.
再以信号码流介绍及码流选择为基础,介绍了并发流的数量、覆盖用户数、接入用户数以及相关投入概算。
Through the diagonal measurement of the value of input to the integration of calculators, in order to estimate the hardness value.
通过把测量的对角线值输入到一体化计算器,从而计算出硬度值。
The capital-output ratio estimate for2012 was 5.5:1, meaning that a capital input of $5.50 achieves only $1 [ofoutput].
该报告表示,“2012年的资本产出比率估值为5.5:1,意味着(每)5.50美元的资金投入仅有1美元产出。
The capital-output ratio estimate for2012 was 5.5:1, meaning that a capital input of $5.50 achieves only $1 [ofoutput].
该报告表示,“2012年的资本产出比率估值为5.5:1,意味着(每)5.50美元的资金投入仅有1美元产出。
应用推荐