scholarly journals The EM algorithm for multi-dimensional Gaussian mixture model

2021 ◽  
Vol 11 (6) ◽  
pp. 515-517
Author(s):  
Qian Wang ◽  
Jian Wang
Keyword(s):  
Em Algorithm ◽  
Gaussian Mixture Model ◽  
Mixture Model ◽  
Gaussian Mixture ◽  
The Em Algorithm

scholarly journals Hybrid DE-EM Algorithm for Gaussian Mixture Model-Based Wireless Channel Multipath Clustering

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Yupeng Li ◽  
Jianhua Zhang ◽  
Ruisi He ◽  
Lei Tian ◽  
Hewen Wei
Keyword(s):  
Em Algorithm ◽  
Gaussian Mixture Model ◽  
Mixture Model ◽  
Clustering Algorithm ◽  
Gaussian Mixture ◽  
Wireless Channel ◽  
Model Parameters ◽  
Em Algorithms ◽  
The Em Algorithm ◽  
Searching Ability

In this paper, the Gaussian mixture model (GMM) is introduced to the channel multipath clustering. In the GMM field, the expectation-maximization (EM) algorithm is usually utilized to estimate the model parameters. However, the EM widely converges into local optimization. To address this issue, a hybrid differential evolution (DE) and EM (DE-EM) algorithms are proposed in this paper. To be specific, the DE is employed to initialize the GMM parameters. Then, the parameters are estimated with the EM algorithm. Thanks to the global searching ability of DE, the proposed hybrid DE-EM algorithm is more likely to obtain the global optimization. Simulations demonstrate that our proposed DE-EM clustering algorithm can significantly improve the clustering performance.

scholarly journals Segmentation of Brain MR Images based on Finite Skew Gaussian Mixture Model with Fuzzy CMeans Clustering and EM Algorithm

2011 ◽  
Vol 28 (10) ◽  
pp. 18-26
Author(s):  
Nagesh Vadaparthi ◽  
Srinivas Yarramalle ◽  
Suresh Varma Penumatsa ◽  
Author P.S.R.Murthy
Keyword(s):  
Em Algorithm ◽  
Gaussian Mixture Model ◽  
Mixture Model ◽  
Gaussian Mixture ◽  
Mr Images ◽  
Brain Mr Images

scholarly journals A dual EM algorithm for TV regularized Gaussian mixture model in image segmentation

2019 ◽  
Vol 13 (3) ◽  
pp. 653-677 ◽  
Author(s):  
Shi Yan ◽  
◽  
Jun Liu ◽  
Haiyang Huang ◽  
Xue-Cheng Tai ◽  
...  
Keyword(s):  
Image Segmentation ◽  
Em Algorithm ◽  
Gaussian Mixture Model ◽  
Mixture Model ◽  
Gaussian Mixture
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