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辅助变量     
相关语句
  instrumental variable
     AN INSTRUMENTAL VARIABLE PARTITIONING ESTIMATION METHOD FOR ESTIMAING SYSTEM PARAMETERS
     系统参数估计的对半估计辅助变量
短句来源
     Recursive Instrumental Variable Algorithms for Modal Parameter Estimation of Structural System
     用递推辅助变量算法估计结构系统模态参数
短句来源
     A new experimental procedure is proposed based on instrumental variable method for analyzing wall surface heat transfer process and deducing wall surface heat transfer coefficient.
     首次提出了用辅助变量法分析建筑墙体外表面换热过程及推导墙体外表面换热系数的实验方法 .
短句来源
     An Implementation of the Instrumental Variable Method for Simultaneous Identification of Model Order and Parameters
     一种可以同时辨识模型参数和阶次的辅助变量
短句来源
     This article puts forward the experimental methods to analyze the heat exchange process of outside surface of walls of construction by instrumental variable technique and derive the heat exchange coefficient of outside surface of the wall body.
     提出了用辅助变量法分析建筑墙体外表面换热过程及推导墙体外表面换热系数的实验方法.
短句来源
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  auxiliary variable
     Ordinary Kriging(OK),Co-Kriging(CK) and OKR interpolations were conducted with 72 SOC data in the topsoil(0~10 cm) which was selected as an auxiliary variable,and 36 and 24 SOC data in the subsoil(10~20 cm) as target variables.
     以72个上层(0~10 cm)SOC数据为辅助变量,分别以36个及24个下层(10~20 cm)SOC数据为目标变量,分别进行普通克里格(OK)、协同克里格(CK)及OKR插值分析。
短句来源
     Parameter Estimation of Rotation System on Rotary Pile Drill Based on Auxiliary Variable Method
     基于辅助变量法的旋挖钻机回转系统参数估计
短句来源
     By introducing an auxiliary variable and an auxiliary equation to form an extended Moore-Spence system, this paper derives an efficient matrix reduction technique.
     该文通过引入辅助变量和辅助方程,得到一个求解潮流方程的Moore-Spence扩展系统的矩阵降阶新算法。
短句来源
     Comparison of Stratified Sampling with a Auxiliary Variable and Ratio Estimator with It
     用辅助变量分层和将其用于比估计抽样效果的比较
短句来源
     Kriging prediction of soil zinc in contaminated field by using an auxiliary variable.
     利用辅助变量对污染土壤锌分布的克里格估值
短句来源
更多       
  secondary variable
     Selection of Secondary Variable for Propylene Concentration Using Discrete Karhunen Loeve Expansion
     应用离散Karhunen-Loeve法选择丙烯浓度的辅助变量
短句来源
     On the analying of that there is strong linear relationship between pour point of light diesel oil and secondary variable, the soft-sensing model is established by applying Multivariable Linear Regression (MLR), Partial-Least-Squares Regression (PLSR), BP(Back Propagation)networks and RBF(Radial Basis Function)networks.
     在分析了常二线柴油凝点和辅助变量之间存在较强的线性关系后,运用多元线性回归、部分最小二乘回归、BP神经网络、RBF神经网络多种方法研究并建立软测量模型。
短句来源
     We look upon the weight of coarse liquid zinc as Secondary variable and get the model between flow and weight based on hydrodynamic theory.
     以粗锌液的重量作为辅助变量,根据流体力学理论建立了流量与重量之间的非线性数学模型。
短句来源
     Then product between the plant height and stem-diameter of sunflower is marked as the integrated index and regarded as primary variable. Choosing water conter and EC as secondary variable, the integrated index of sunflower is estimated using the three variables CK method that is in the form of covariance function.
     将向日葵株高与茎粗的乘积记为综合性指标并视为主变量,选取土壤含水率与EC值为辅助变量,分别运用CK法与普通克立格法(Ordinary Kriging,简记为OK法)对向日葵综合性指标进行预测研究。
短句来源
     On the basis of relative hydromechanical theoretics, weight that is easy to measure is chosen as Secondary Variable and non-linear mathematics model between flux and weight by sample statistics is constructed.
     在相关流体力学理论的基础上,选取容易测量的重量作为辅助变量,通过现场实验利用样本数据建立了重量与流量之间非线性的数学模型。
短句来源
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  instrumental variables
     First it gives analysis and comparison to Least Squares, Weighted LeastSquares, Extended Least Squares and Instrumental variables, then analysestheoretically the problems of how to realize the identification in computer.
     首先对普通最小二乘法、加权最小二乘法、增广最小二乘法和辅助变量法进行阐述、比较和分析,并理论上分析电液伺服控制系统辨识的计算机实现问题。
短句来源
     This paper studies the problem of estimating parameters of ARMA(p,q) with the observed data corrupted by an unknown white noise. A modified recursive instrumental variables(RIV) method is developed to provide consistent estimates for the parameters of AR(p) and variance of the white noise. With these obtained results, estimates of the parameters in MA(q) can be determined by using the welldeveloped Newton-Raphson algorithm.
     本文研究了如何利用受白色噪声污染的观测数据辨识ARMA(p,q)模型参数据的问题,提出了一种递推辅助变量法.利用这种方法首先辨识出AR(P)部分的参数及观测噪声的方差,然后根据所得的估计利用常用的Newton-Raphson方法确定MA(q)部分的参数.
短句来源
     The instrumental variables are obtained from predictions based on past three bearing measurements and are therefore independent of the present noisy measurements, so a recursive, unbiased estimator is established.
     利用现时刻之前的方位测量构造现在方位的预测值 ,形成了与现在测量方位在统计上独立的辅助变量 ,该辅助变量用以对拟线性估计算法的修正 ,能产生无偏的目标参数估计
短句来源
     In the proposed method,proper instrumental variables are constructed to suppress the effects of noise on the detection performance,and a useful criterion for detection is derived based on the asymptotical analysis of the orthogonality between signal and noise subspace.
     构造适当的辅助变量减轻甚至消除噪声对检测性能的影响. 对信号子空间和噪声子空间的正交性进行了分析得出新的估计准则.
短句来源
     A new method of the instrumental variables is presented based on the research of the current Pseudo-linear estimator(PLE). The simulation result of Cramer-Rao lower bound(CRLB) and root mean square error(RMSE) is obtained after the computer simulation. The algorithm is recursive, unbiased, and stable.
     在研究现有伪线性算法的基础上,新提出一个辅助变量构造的方法,并且进行仿真计算,比较了 Cramer-Rao误差下限CRLB和均方误差的仿真结果,结果表明,提出的伪线性辅助变量算法具有全局的稳定性,能够得到系统的无偏估计,可以实现递推估计。

 

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  instrumental variable
For such plants, the potentials of the two methods of active identification are Compared-the instrumental variable method and the finite-frequency identification method.
      
Modelling of an hydraulic excavator using simplified refined instrumental variable (SRIV) algorithm
      
Based on the data collected in the excavator's arms driving experiments, a data-based excavator dynamic model using Simplified Refined Instrumental Variable (SRIV) identification and estimation algorithms is established.
      
Lattice implementation of the instrumental variable method: Shift and delta operator formulations
      
The lattice forms of the Instrumental Variable (IV) method is derived, for the standard shift operator.
      
更多          
  auxiliary variable
In this paper, we undertake a small-scale simulation study to examine the magnitude of imprecision introduced in the ratio and regression methods of estimation if the auxiliary variable is contaminated with measurement errors.
      
The proposed control chart is based on regression type estimator of variance using a single auxiliary variable X.
      
the main variable under study and the auxiliary variable have a very high negative correlation between them.
      
Postulating a linear regression of a variable of interest on an auxiliary variable with values of the latter known for all units of a survey population, we consider appropriate ways of choosing a sample and estimating the regression parameters.
      
The algorithm uses an auxiliary variable for systematic expansion, when necessary, of the linear feasible set to ensure a feasible direction vector.
      
更多          
  secondary variable
As health-related quality-of-life (HRQOL) is also supposed to be an important outcome parameter, it was assessed as a secondary variable in these two patient groups.
      
The Walker Lake data based is used to produce a heterogeneous log-transmissivity field with distinct non-Gaussian characteristics and a secondary variable that represents some geophysical attribute.
      
For correlations between the principal and secondary variable under 0.4, similar results are obtained using kriging and cokriging, and these methods are superior slightly to the other approaches in terms of minimizing estimation error.
      
A moderate correlation (approximately r = 0.70) existed between a continuous primary variable and a continuous secondary variable.
      
Such model is inappropriate in the presence of a smoothly varying secondary variable defined on a much larger volume support than the primary variable.
      
更多          
  instrumental variables
Instrumental variables exerting influence on the accuracy of quantitation were studied.
      
The instrumental variables affecting the sensitivity and resolution of the mixture were carefully optimized.
      
We consider the possibility of reciprocal causation by means of an instrumental variables analysis, which yields no evidence that income distribution affects opinion.
      
Methodological research on design strategies such as group-level randomized trials, or instrumental variables analyses are needed.
      
Two instrumental variables, tourist expenditures and federal government spending, were highly significant.
      
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