研究首次引入了包含股票价格的市场信息变量,并在判别模型表现时对估计样本和测试样本进行了区分。
The market information variables containing stock prices are introduced in our model for the first time. We divide samples into two groups: estimation and test samples.
通过多个实验表明,试样的均衡性、读数误差控制范围的正确确定以及样本菌量的正确估计,都是影响实验室菌落计数精密度控制的因素。
The results show that homogeneity of samples, correct determine of control range of reading errors and correct estimation of bacterium account are elements that affect accuracy of aerobic plate count.
采用非线性参数估计可同时估计出热扩散率、散热系数以及试样吸收的能量。
The nonlinear parameter estimation technique can simultaneously estimate the thermal conductivity, heat transfer coefficient and absorbed energy.
采用非线性参数估计可同时估计出热扩散率、散热系数以及试样吸收的能量。
The nonlinear parameter estimation technique can simultaneously estimate the thermal conductivity, heat transfer coefficient and absorbed energy.
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