Autonomous segmentation of motion primitive including muscular activation using variational Bayesian mixture of Gaussian

2013 ◽  
Author(s):  
Seongsik Park ◽  
Wan Kyun Chung
Keyword(s):  
Variational Bayesian ◽  
Motion Primitive ◽  
Bayesian Mixture ◽  
Mixture Of Gaussian ◽  
Muscular Activation

scholarly journals Semiadaptive Fault Diagnosis via Variational Bayesian Mixture Factor Analysis with Application to Wastewater Treatment

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Hongjun Xiao ◽  
Yiqi Liu ◽  
Daoping Huang
Keyword(s):  
Factor Analysis ◽  
Fault Diagnosis ◽  
Dynamic Feature ◽  
Strong Nonlinearity ◽  
Hostile Environment ◽  
Multivariate Statistical ◽  
Variational Bayesian ◽  
Root Cause ◽  
Bayesian Mixture ◽  
Diagnosis Method

Mainly due to the hostile environment in wastewater plants (WWTPs), the reliability of sensors with respect to important qualities is often poor. In this work, we present the design of a semiadaptive fault diagnosis method based on the variational Bayesian mixture factor analysis (VBMFA) to support process monitoring. The proposed method is capable of capturing strong nonlinearity and the significant dynamic feature of WWTPs that seriously limit the application of conventional multivariate statistical methods for fault diagnosis implementation. The performance of proposed method is validated through a simulation study of a wastewater plant. Results have demonstrated that the proposed strategy can significantly improve the ability of fault diagnosis under fault-free scenario, accurately detect the abrupt change and drift fault, and even localize the root cause of corresponding fault properly.

scholarly journals A variational Bayesian mixture modelling framework for cluster analysis of gene-expression data

2005 ◽  
Vol 21 (13) ◽  
pp. 3025-3033 ◽  
Author(s):  
A. E. Teschendorff ◽  
Y. Wang ◽  
N. L. Barbosa-Morais ◽  
J. D. Brenton ◽  
C. Caldas
Keyword(s):  
Gene Expression ◽  
Cluster Analysis ◽  
Gene Expression Data ◽  
Expression Data ◽  
Variational Bayesian ◽  
Mixture Modelling ◽  
Modelling Framework ◽  
Bayesian Mixture
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