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bayesian估计
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  bayesian estimation
     When image noise reduction is carried out by Bayesian estimation method, the peak SNR is improved from -12.084dB to 10.084dB, the position deviation of the centroid is only 0.03μm.
     而Bayesian估计的图像小波消噪方法,峰值信噪比从-12.084 dB提高到10.048 dB,质心偏离仅0.03μm。
短句来源
     Wavelet Image Threshold Denoising Based on Edge Detection and Bayesian Estimation
     基于边缘检测和Bayesian估计的小波阈值去噪方法
短句来源
     THE BAYESIAN ESTIMATION OF THE ORDER FOR STATIONARY MA MODEL
     平稳MA模型阶数的Bayesian估计
短句来源
     RATES OF CONVERGENCE IN EMPIRICAL BAYESIAN ESTIMATION OF COEFFICIENT AND ERROR VARIANCE IN LINEAR REGRESSION
     线性模型回归系数与误差方差联立经验Bayesian估计的收敛速度
短句来源
     Wavelet transform is used to estimate the noise, namely is generalized Gaussian noise. For this, a noise reduction method based on Bayesian estimation is proposed.
     利用小波的方法估计出这种噪声属于广义的高斯噪声,因此,提出了一种基于Bayesian估计的小波降噪方法。
短句来源
更多       
  bayesian estimators
     The posterior density and Bayesian estimators and Bayesian lower bound of the reliability at the end of the test are also given.
     本文还给出试验末尾产品可靠性的后验密度 ,Bayesian估计和 Bayesian下限
短句来源
  “bayesian估计”译为未确定词的双语例句
     Adaptive Wavelet Thresholding Denoising Method Based on Bayesian
     基于Bayesian估计和Wiener滤波的阈值去噪方法
短句来源
     while spatial domainalgorithms have mainly three approaches, i.e. Iterative Backward Projecting(IBP),Projection Onto Convex Sets(POCS) and Bayesian methods.
     空域方法又分迭代反投影方法、凸集投影方法、Bayesian 估计方法等。
短句来源
     With an eye to the shortcomings of UCAT, the item selection, trait estimation are discussed in theory and the algorithm of Bayesian item selection about MAT is putted forward.
     考虑到UAT的某些不足,我们对MAT中的项目选择和能力估计进行了一定的理论探讨,并且给出了Bayesian估计中的项目选择的详细算法。
短句来源
     spatial domain algorithms there are mainly three approaches, i.e. Iterative Backward Projecting(IBP), Projection Onto Convex Sets(POCS) and Bayesian methods.
     空域方法又分迭代反投影方法、凸集投影方法、Bayesian估计方法等。
短句来源
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  bayesian estimation
Consideration was given to the Bayesian estimation in the multidimensional indefinite-stochastic observation model using the minimax criterion with the generalized probabilistic risk functionals.
      
In the first case, nonlinear regression analysis is used in combination with successive Bayesian estimation.
      
The map is represented by an occupancy grid framework and updated by the Bayesian estimation mechanism.
      
A Bayesian estimation framework was chosen to build up a regularization scheme based on the weak membrane model.
      
Dynamic Bayesian estimation of displacement parameters of continuous curve box based on Novozhilov theory
      
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  bayesian estimator
The Bayesian approach is applied to this problem and, using Monte Carlo simulation to search over the integer candidates, a practical expression for the Bayesian estimator is obtained.
      
Subsequently, these parameters were used by the Bayesian estimator to calculate individual pharmacokinetics from only 2 or 3 measured concentrations.
      
The comparison of results obtained from the Bayesian estimator and from the three-compartment model showed that CL and t1/2 were well predicted (relative deviation: ±12 to 22%) by the Bayesian method using only two blood samples.
      
Relative estimation errors of the obtained empirical Bayesian estimator are very small - they do not exceed 2.5%.
      
A Bayesian estimator, based on the Gibbs sampling, is proposed.
      
更多          
  bayesian estimators
But if the assumptions of the model are not violated, then the maximum and mean likelihood and the Bayesian estimators are best.
      
Pseudo Bayesian estimators for the variance components based on Jeffrey's Rule are derived for the mixed balanced incomplete block design and are compared with the usual analysis of variance estimators in terms of mean squared error (MSE) efficiency.
      
Numerical results show that Pseudo-Bayesian estimators are more efficient in numerical results.
      
The Bayesian estimators are shown to provide some improvement over lognormal co-kriging under the criteria of mean error, root mean square error, and standardized mean square error.
      
The proposed estimators are arguably superior to the traditional estimators and to the usual Bayesian estimators, and may be highly robust.
      
更多          


In this paper, we consider linear regression Y=Xβ+ε,ε~N(0,σ~2I_k) where β and σ~2 are unknown parameters. With general quadratic loss function, we first construct Bayesian estimators of the parameters of multiparameter exponential families. Using multiple kernel function, we censtruct the EB estimators of the parameters. We obtain their rases of convergence 2(σr-1)/(2r+p+1) closing to 1.

本文研究了正态线性模型回归系数与误差方差联立经验Bayesian估计的收敛速度。

Genetic parameter were estimated for teat number of Danish Landrace by using Gibbs sampling. Total number of records was 9898. Analytical model included sex as fixed effect and additive genetic random effects. The posterior mean estimates of genetic variance, residual variance and heritability were 1.034±0.084,0.541±0.064,0.656±0.037, respectively. The correponding REML estimates were 1.036,0.539,0.658,respectively. There were no significant differences between posterior estimates and REML estimates ( P >0.05)....

Genetic parameter were estimated for teat number of Danish Landrace by using Gibbs sampling. Total number of records was 9898. Analytical model included sex as fixed effect and additive genetic random effects. The posterior mean estimates of genetic variance, residual variance and heritability were 1.034±0.084,0.541±0.064,0.656±0.037, respectively. The correponding REML estimates were 1.036,0.539,0.658,respectively. There were no significant differences between posterior estimates and REML estimates ( P >0.05). Several priors were used to examine their influence on inferences. The priors were influential because of the relatively small data size.

建立了单性状动物模型通过 Gibbs抽样对丹系长白猪乳头数遗传参数进行贝叶斯 (Bayesian)估计 ,并与约束最大似然 (REML)估计进行比较。数据包括 9898个个体总乳头数及系谱记录。模型中性别为固定效应 ,个体遗传效应为随机效应。结果表明 ,丹系长白猪乳头数的遗传方差组分、环境方差组分及遗传力的后验均值估计分别为 1.0 4 6± 0 .0 0 9,0 .534± 0 .0 0 5,0 .6 6 1± 0 .0 0 4 ,相应的 REML 估计值为 1.0 36 ,0 .539,0 .6 58,两者之间差异不显著 (P>0 .0 5)。 Gibbs抽样时不同的先验值对后验均值估计有一定影响。

This paper introduces a new family of a prior distributions for four reliability growth testing scenarios with exponential failure data. The proposed prior is of conditional form, which can accord well with various actual situations in reliability growth tests. The expressions of corresponding conditional means and variances for all stages are obtained, and the relationship between the shape of a prior distributions and their parameters are discussed. These results are helpful for better incorporation of expert...

This paper introduces a new family of a prior distributions for four reliability growth testing scenarios with exponential failure data. The proposed prior is of conditional form, which can accord well with various actual situations in reliability growth tests. The expressions of corresponding conditional means and variances for all stages are obtained, and the relationship between the shape of a prior distributions and their parameters are discussed. These results are helpful for better incorporation of expert opinons. The posterior density and Bayesian estimators and Bayesian lower bound of the reliability at the end of the test are also given.

该文提出了可用于指数分布产品四种可靠性增长试验方案的一类新的先验分布 .这类先验分布以条件分布形式给出 ,它适合可靠性增长试验中的各种情况 .各阶段的条件均值和条件方差的表达式被获得 ,先验分布的形式与它们的参数间的关系被讨论 .这些结果有助于与专家意见相结合 .本文还给出试验末尾产品可靠性的后验密度 ,Bayesian估计和 Bayesian下限

 
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