Variable selection and transformation selection are two different problems in the linear model.
变量选择和变换选择是线性模型中的两个不同的问题。
The two basic modes of mathematical model-behavior mode and state variable mode, along with the isomorphic and homomorphic relation between models and real system are described.
系统数学模型的基本模式：行为模式和状态变量模式以及在状态变量模式下的同构与同态系统；
Because the boiler's exhaust gas temperature is taken as the intermediate variable, to be used as the input of two other models, the predictive precision of the whole model is markedly raised.
由于综合模型采用了锅炉排烟温度预测模型的输出为中间变量，并作为另外两个模型的输入，因而大大提高了整个模型的预测精度。
The optimization model contains two kinds of designing variables: geometric position variable and geometric dimension variable.
其优化模型包含两类设计变量：几何位置变量和几何尺寸变量。
The two compartment model with variable extracellular volume is presented and solved by using both perturbation and analytical method.
提出了细胞外室体积随时间变化的两室模型并求出了其摄动解。
Several faults in the improved NS model using two examples is pointed out and also another single lane traffic CA model by introducing vehicle_moving_status variable and feedback rule is proposed.
通过两种情况列出了改进的NS模型存在不尽周严的地方，随之在新模型中引入了行车状态变量和反馈规则，从而控制车辆出现倒车和刹车过急等现象。
Then, the mistake classification rate between two fuzzy sets is defined. Later, fuzzy variable precision rough set model is proposed based on the two definitions.
另一方面提出了在一定错分率存在的条件下的模糊集合间的相对错分率，之后结合这两个理论给出了基于模糊邻域算子的模糊变精度粗糙集模型。
Based on the thought of variable-complexity modeling in multidisciplinary design optimization, a two level variable-complexity model is established with the background of moon exploring satellite.
本文依据多学科设计优化中可变复杂度建模的思想，以月球探测卫星为背景型号建立了卫星的两级可变复杂度模型。
With the help of game theory, and the use of supply and price as variable of policy decision, the paper studies the energy substitution issue by a two-stage dynamic game model.
以博弈论为研究工具，以供应量和价格为决策变量，通过两阶段动态博弈模型，对能源之间的替代问题进行了研究。
In this paper, the two-product inventory model with variable substitution price is studied in the retailer's view.
从销售商的角度出发，研究了可变替代价格下的两产品库存问题。
Research found that dependent variable of ROE and Tobin Q of two kinds of regression model results in some differences.
研究发现，因变量为托宾q和ROE的两类回归模型的结果存在些差异。
The calculation shows that, fracturing fluid leak-off considered variable permeability are greater than conventional fractured loss model, when net pressure is higher, the two has 10 times difference.
计算表明：考虑天然裂缝渗透率变化的滤失量要远远大于常规双重介质模型得到的滤失量，当净压力较高时，二者可相差10倍之多。
A two damage variable creep constitutive model has been presented for the strength and life of nickel base single crystal superalloy turbine blades.
本文提出双参数蠕变损伤模型用以模拟镍基单晶合金叶片的强度和寿命。
Abstract: The paper presents a variable structure multiple model estimation based on two-layer model grid, which is used to state estimation for hybrid system.
摘要：文章提出了一种双层网格变结构多模型方法用于复杂系统的状态估计。
Abstract: The paper presents a variable structure multiple model estimation based on two-layer model grid, which is used to state estimation for hybrid system.
摘要：文章提出了一种双层网格变结构多模型方法用于复杂系统的状态估计。
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