Improved Expectation Maximization Algorithm for Gaussian Mixed Model Using the Kernel Method
Joint Authors
Mohd Yusoff, Mohd Izhan
Mohamed, Ibrahim
Abu Bakar, M. R.
Source
Mathematical Problems in Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-08-21
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Fraud activities have contributed to heavy losses suffered by telecommunication companies.
In this paper, we attempt to use Gaussian mixed model, which is a probabilistic model normally used in speech recognition to identify fraud calls in the telecommunication industry.
We look at several issues encountered when calculating the maximum likelihood estimates of the Gaussian mixed model using an Expectation Maximization algorithm.
Firstly, we look at a mechanism for the determination of the initial number of Gaussian components and the choice of the initial values of the algorithm using the kernel method.
We show via simulation that the technique improves the performance of the algorithm.
Secondly, we developed a procedure for determining the order of the Gaussian mixed model using the log-likelihood function and the Akaike information criteria.
Finally, for illustration, we apply the improved algorithm to real telecommunication data.
The modified method will pave the way to introduce a comprehensive method for detecting fraud calls in future work.
American Psychological Association (APA)
Mohd Yusoff, Mohd Izhan& Mohamed, Ibrahim& Abu Bakar, M. R.. 2013. Improved Expectation Maximization Algorithm for Gaussian Mixed Model Using the Kernel Method. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1010641
Modern Language Association (MLA)
Mohd Yusoff, Mohd Izhan…[et al.]. Improved Expectation Maximization Algorithm for Gaussian Mixed Model Using the Kernel Method. Mathematical Problems in Engineering No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-1010641
American Medical Association (AMA)
Mohd Yusoff, Mohd Izhan& Mohamed, Ibrahim& Abu Bakar, M. R.. Improved Expectation Maximization Algorithm for Gaussian Mixed Model Using the Kernel Method. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1010641
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1010641