Title :
Estimating Regional Conductivity in 2D Disc Head Model by Multidemensional Support Vector Regression
Author :
Xueqin Shen ; Hui Yan ; Weili Yan ; Lei Guo
Author_Institution :
Hebei Univ. of Technol., Tianjin
Abstract :
In this paper, we introduce multidimensional support vector regression (MSVR) with iterative re-weight least square (IRWLS) based procedure to estimating the regional conductivity in 2D disc head model. The results show that the method is capable of determining for the regional location of the disturbed conductivity in the 2D disc head model with single tissue and estimating for the tissue conductivities in the 2D disc head model with four kinds of tissue. The estimation errors are all within a few percent.
Keywords :
bioelectric phenomena; biological tissues; electric impedance imaging; electrical conductivity; iterative methods; least squares approximations; medical computing; neurophysiology; physiological models; regression analysis; support vector machines; 2D disc head model; electrical impedance tomography; iterative re-weight least square; multidimensional support vector regression; regional conductivity estimation; tissue conductivities; Automation; Conductivity; Electrodes; Iterative algorithms; Least squares approximation; Magnetic heads; Multidimensional systems; Scalp; Support vector machines; Tomography; Algorithms; Body Composition; Computer Graphics; Electric Conductivity; Electric Impedance; Head; Humans; Least-Squares Analysis; Models, Biological;
Conference_Titel :
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Conference_Location :
Lyon
Print_ISBN :
978-1-4244-0787-3
DOI :
10.1109/IEMBS.2007.4353442
