Results 271 to 280 of about 268,605 (307)

An Unbiased Estimator of the Covariance Matrix of the Mixed Regression Estimator

1989
This paper derives an unbiased estimator of the covariance matrix of the "mixed regression estimator" suggested by Theil and Goldberger (1961) for combining prior information with the sample information in regression analysis. This derivation facilitates the construction of finite-sample standard errors for the mixed estimators of the individual ...
Giles, D. E. A, Srivastava, V. K., Giles, D. E. A, Srivastava, V. K.   +3 more
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The Estimation of Mixing Matrix Based on Bernoulli-Gaussian Model

2011 Seventh International Conference on Computational Intelligence and Security, 2011
Based on Bernoulli-Gaussian model and the sparseness of source signals, a new algorithm for estimating the mixing matrix is proposed in this paper. It estimates the mixing matrix by searching the cluster points which are found through the density of points in the region.
Jiechang Wen, Taowen Wang
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Estimations of effective diffusivity of hollow fiber mixed matrix membranes

Journal of Membrane Science, 2015
Abstract Mixed matrix membranes (MMMs) are composed of a polymeric matrix, which gives them good processability, and crystalline microporous fillers, which give them high separation performance. The need to predict the separation performance of MMMs has led to the development of a number of analytical and numerical methods for the estimation of ...
An-Chih Yang, Chih-Han Liu, Dun-Yen Kang
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Improved estimates of the covariance matrix in general linear mixed models

Acta Mathematica Scientia, 2010
In this paper, the problem of estimating the covariance matrix in general linear mixed models is considered. A new class of estimators is proposed. It is shown that this new estimator dominates the analysis of variance estimate under two squared loss functions.
Ye Rendao, Wang Songgui
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Mixing Matrix Estimation based on Density Clustering for Blind Source Separation

, 2022
Rou Wen, Xiyuan Sun, Zi He, Pengfei Gu, Dazhi Ding, Li Li, Yuanyuan Wen, Dawei Song, She Shang   +8 more
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The Bias and Moment Matrix of a Mixed Regression Estimator

Econometrica, 1964
Nagar, A. L., Kakwani, N. C.
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Mixing Matrix Estimation Algorithm for Time-Varying Radar Signals in a Dynamic System Under UBSS Model

, 2021
Xiaowei Bai, Weihong Fu, Chunhua Zhou, Yongyuan Liu   +3 more
openalex   +1 more source

Underdetermined mixing matrix estimation by exploiting sparsity of sources

Measurement: Journal of the International Measurement Confederation, 2020
Liangli Zhen, Dezhong Peng, Haixian Zhang   +2 more
exaly  

Mixing Matrix Estimation of Underdetermined Blind Source Separation based on Improved Density Clustering Algorithm

, 2019
Linyu Wang, Gangyang Hou, Jianhong Xiang
openalex   +1 more source

Underdetermined mixing matrix estimation based on artificial bee colony optimization and single-source-point detection

, 2020
Xuansen He, Fan He
openalex   +1 more source