Table 1.
Summary of the related work methods.
Fig 1.
Operational framework.
Fig 2.
Imbalance data handling process.
Table 2.
GLCM texture features formulas.
Fig 3.
Kohonen map architecture [64].
Fig 4.
X-ray sample from the COVID-19 dataset [23].
Fig 5.
X-ray sample of COVID-19 dataset.
Table 3.
Results of chest X-ray COVID-19 classification based on LWL-SOM.
Table 4.
Results of chest X-ray COVID-19 classification based on LWL.
Fig 6.
SOM-LWL correlation coefficient.
Fig 7.
SOM-LWL mean absolute error.
Fig 8.
SOM-LWL root mean squared error.
Fig 9.
SOM-LWL root relative error.
Fig 10.
SOM-LWL root relative squared error.
Table 5.
T-test statistical significance results.
Fig 11.
Comparison of the proposed SOM-LWL method with other COVID-19 diagnostic methods.