Author:
Rymarczyk T,Kłosowski G,Kozłowski E,Sikora J,Adamkiewicz P
Abstract
Abstract
Hyperparameter optimization in machine learning models may help enhance the efficiency of obtaining high-quality tomographic pictures, the purpose of this paper. In the discipline of electrical impedance tomography, machine learning techniques are utilized to translate voltage measurements into reconstruction pictures. Because of this, the so-called "inverse problem" arises, whereby the optimal answer must be sought. Effective machine learning relies heavily on the appropriate choice of model coefficients (hyperparameters). As a consequence, the strategies used to improve this choice have an indirect effect on the final reconstruction. The K-nearest neighbors strategy may be utilized to improve a machine learning model based on linear regression and classification models, as we show in this paper. Electrical tomography, a technology that analyses flood embankments from the interior to measure their structural integrity, makes use of the methods outlined above. The data gathered shows that the suggested solutions work.
Subject
General Physics and Astronomy
Reference18 articles.
1. Selection of the method for the earthing resistance measurement;Szczesny;Przeglą Elektrotechniczny,2018
2. Application of neural reconstruction of tomographic images in the problem of reliability of flood protection facilities;Rymarczyk;Eksploat. i Niezawodn.--Maint. Reliab.,2018
3. Classification algorithms to identify changes in resistance;Duraj;Przegląd Elektrotechniczny,2015
4. GPU-Accelerated Reconstruction of T2 Maps in Magnetic Resonance Imaging;Mikulka;Meas. Sci. Rev.,2015
5. Acceleration of image reconstruction process in the electrical capacitance tomography 3D in heterogeneous, multi-GPU system;Majchrowicz;Informatics Control Meas. Econ. Environ. Prot.,2017