scholarly journals Multithreshold change plane model: Estimation theory and applications in subgroup identification

2021 ◽  
Author(s):  
Jialiang Li ◽  
Yaguang Li ◽  
Baisuo Jin ◽  
Michael R. Kosorok
Keyword(s):  
Estimation Theory ◽  
Model Estimation ◽  
Plane Model ◽  
Subgroup Identification

Method of Radiation Monitoring Measurement Adapted to Scanning Speed Using Nonlinear Model Estimation

2018 ◽  
Vol 138 (12) ◽  
pp. 1547-1553
Author(s):  
Yoshitsugu Nakagawa ◽  
Chisato Murakami ◽  
Kazuyuki Mori ◽  
Haruhiko Sato
Keyword(s):  
Nonlinear Model ◽  
Scanning Speed ◽  
Radiation Monitoring ◽  
Model Estimation

An Adaptive Combined Preconditioner with Applications in Radiation Diffusion Equations

2015 ◽  
Vol 18 (5) ◽  
pp. 1313-1335 ◽  
Author(s):  
Xiaoqiang Yue ◽  
Shi Shu ◽  
Xiao wen Xu ◽  
Zhiyang Zhou
Keyword(s):  
Convergence Analysis ◽  
Estimation Theory ◽  
Numerical Results ◽  
Diffusion Equations ◽  
Condition Numbers ◽  
Radiation Diffusion ◽  
Discrete Problems ◽  
Preconditioned Gmres

AbstractThe paper aims to develop an effective preconditioner and conduct the convergence analysis of the corresponding preconditioned GMRES for the solution of discrete problems originating from multi-group radiation diffusion equations. We firstly investigate the performances of the most widely used preconditioners (ILU(k) and AMG) and their combinations (Bco and Bco), and provide drawbacks on their feasibilities. Secondly, we reveal the underlying complementarity of ILU(k) and AMG by analyzing the features suitable for AMG using more detailed measurements on multiscale nature of matrices and the effect of ILU(k) on multiscale nature. Moreover, we present an adaptive combined preconditioner Bcoα involving an improved ILU(0) along with its convergence constraints. Numerical results demonstrate that Bcoα-GMRES holds the best robustness and efficiency. At last, we analyze the convergence of GMRES with combined preconditioning which not only provides a persuasive support for our proposed algorithms, but also updates the existing estimation theory on condition numbers of combined preconditioned systems.

scholarly journals Internal Language Model Estimation for Domain-Adaptive End-to-End Speech Recognition

2021 ◽  
Author(s):  
Zhong Meng ◽  
Sarangarajan Parthasarathy ◽  
Eric Sun ◽  
Yashesh Gaur ◽  
Naoyuki Kanda ◽  
...  
Keyword(s):  
Speech Recognition ◽  
Language Model ◽  
Model Estimation ◽  
End To End
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