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variance parameter
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  方差参数
     For testing linear hypothesis about regression coefficients, Banerjee and Magnus(1997) studied the sensitivity of F-test sta,tistic(FGLS( )) based on generalized least square estimate caused by variance parameter in general case and proposed sensitivity statistic and its distribution.
     关于回归系数的线性假设检验问题,Banerjee和Magnus(1997)在一般情况下从理论上研究了方差参数对基于广义最小二乘估计的F-检验统计量(F_(GLS)(θ))的种种影响,提出了敏感性的概念,并给出敏感统计量的形式及其分布。
短句来源
     In the linear case, it is the same as the minimum variance parameter adaptive control.
     在线性情形,它与最小方差参数自适应控制律一致。
短句来源
     The properties of tests statistic are studied when the variance parameter is known.
     在方差参数已知的情况下,研究了检验统计量的性质;
短句来源
     The key to the success of this method is to allow each marker effect have its own variance parameter, which in turn has its own prior distribution so that the variance can be estimated from the data.
     其关键在于让每个效应有一个特定的方差参数,而该方差又服从一定的先验分布,以致能从资料中估计之。
短句来源
     By transferring the Gaussian noise variance parameter between layers and employing different filters for different sort of pixels, the algorithm can effectively improve the precision and accuracy, as well as preserving edge details.
     采用图像层间传递高斯噪声方差参数,对于不同性质的像素采用不同滤波算法,有效地提高滤波精度和准确性,并能够较强地保存图像边缘细节信息。
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  “variance parameter”译为未确定词的双语例句
     Research on Variance Parameter Genetic Algorithm Based on Diversity of Population
     基于种群多样度的变参数遗传算法的研究
短句来源
     Aiming at the premature convergence of the simple genetic algorithm (SGA), variance parameter genetic algorithm (VPGA), which is based on the diversity of population, is proposed.
     该文针对基本遗传算法(SGA)所存在的缺陷——早熟现象进行了分析,并在此基础上提出了基于种群多样度的变参数遗传算法(VPGA)。
短句来源
     ON THE RELIABILITY OF MEASURING AND CALCULATING STRESS VARIANCE PARAMETER RESULTING IN EARTHQUAKES BY RELATIVE STRESS MEASUREMENT
     论相对地应力测量测算致震应力变异参数的可靠性
短句来源
     At premise of tunnel lining structure construction must be ensure reliability mark and design specification,debase standard difference and variance parameter,reduce construction cost.
     隧道衬砌结构施工中,应在保证可靠性指标和规范要求的前提下,减小标准差和变异系数值,降低工程成本。
短句来源
     At the part vault and arch foot in the tunnel secondary lining thickness,the standard difference and variance parameter is large than others,so insure the part thickness achieve design require by adjust construction craftwork.
     隧道二次衬砌厚度在拱顶和拱脚的部位的标准差和变异系数较大,在施工中应该考虑调整施工工艺,确保这两个部位的厚度。
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  相似匹配句对
     Variance Estimation in Parameter Design
     参数设计中的方差估计
短句来源
     POSITIVE-NEGATIVE VARIANCE OF SAWR IN PARAMETER DESIGN
     用正负偏差法确定声表面波谐振器参数
短句来源
     Stability variance.
     ②稳定性方差。
短句来源
     and b was empirical parameter.
     b为经验常数。
短句来源
     n—Parameter CAPM
     n个参数的资本性资产定价模型
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  variance parameter
Meanwhile, the variance parameter, τ(ins), and the mean value of grain area,
      
If the variance of noise is small, an alternative method is also applicable which yields a suboptimal control in a power series with respect to a variance parameter.
      
The aim of the present paper is to use a similar approach to find simple conditions for linearization of the model in the case of a locally quadratic model with unknown variance parameter σ2.
      
Linearization conditions for regression models with unknown variance parameter
      
This paper suggests a variance parameter's identification technique based on the stochastic structural system analysis method and the multidimensional optimisation algorithm.
      
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In this paper, on the base of the recursive stochastic gradient method, a kind of adaptive control algorithm of the non-linear system has been given. The character of this method is that, it has a recursive form. In the linear case, it is the same as the minimum variance parameter adaptive control.

本文以递推随机梯度算法为基础,给出了寻求一类非线性系统的自适应控制律的方法。这种方法的特点是具有递推形式。在线性情形,它与最小方差参数自适应控制律一致。

The multi-electron configurational functions in complete active space (CAS) are classified and characterized by weight vectors (occupation numbers of orbitals). Each configuration has a given weight vector. Configuration space invariant under molecular point group is called equivalent weight space. The Slater determinants are basis functions in each equivalent weight space. The new concepts of symmetrization operators,character Slater bases, character matrices and character configuration functions, and general...

The multi-electron configurational functions in complete active space (CAS) are classified and characterized by weight vectors (occupation numbers of orbitals). Each configuration has a given weight vector. Configuration space invariant under molecular point group is called equivalent weight space. The Slater determinants are basis functions in each equivalent weight space. The new concepts of symmetrization operators,character Slater bases, character matrices and character configuration functions, and general generation methods of symmetrization function (eigenfunction of S2 and irreducible representation of molecular point group) are proposed. According to this scheme,the full configurational functions are a sum of these functions obtained by operating the symmetrization operator to character configuration functions, therefore, the physical factors and geometric factors in full configuration functions are completely separated and redundant variance parameters are removed due to symmetry adaptation. The character Slater bases are one-one correspondence with equivalent VB structure and have a define chemical significance. This method might play an important role in the CI theory and calculations.

提出了完全活性空间组态相互作用方法中对称化算符、本征基、特征矩阵、特征波函数等概念和将多电子波函救按空间与自旋对称分类的统一方法。按此法对称化算符并作用在特征波函数上,再按等价权空间求和即得全组态波函数。因对称性使组态函数中物理因子与几何因子完全分离,可消除了变分求解中多余的变量。特征基化学概念明确,直接对应给定的价键结构。

A looser statistical model is used to analyze the errors of neural networks when limited precision operations are used to design and implement a realvalued double parallel feedforward neural networks(DPFNN). The analysis is based on new assumptions on both the expectation bound and variance bound of both inputs and weights, instead of the usual assumptions on the distributions of the neural inputs, weights, states, activational functions etc. The new assumptions are obviously much less restrictive and...

A looser statistical model is used to analyze the errors of neural networks when limited precision operations are used to design and implement a realvalued double parallel feedforward neural networks(DPFNN). The analysis is based on new assumptions on both the expectation bound and variance bound of both inputs and weights, instead of the usual assumptions on the distributions of the neural inputs, weights, states, activational functions etc. The new assumptions are obviously much less restrictive and closer to practical situations. We develop, as functions of the variance parameters and expectation or mean parameters, general statistical formulations of the performance degradation of the neural network caused by errors in inputs and weights. The study shows that the networks performance degradation gets worse when either variance bounds or mean bounds of the errors in either the inputs or weights are increased; that the error bound of a DPFNN is smaller than that of a MLFNN (multilayer feedforward neural network); and that both the error bounds of a DPFNN and a MLFNN are increased as the wordlength is decreased. Furthermore, the theoretical analysis and simulations also show that when more than 12 bit wordlength is used, the effect of quantization on either DPFNN or MLFNN is very small.

分析了作者提出的双并联前向神经网络(DPFNN)有限精度实现的误差界,并给出多种有限精度运算实现的仿真结果,其结果对神经网络的有限精度实现和工程应用设计具有一定的指导意义

 
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