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Table 2 VGG16 model architecture for ionogram image classification task

From: Automatic classification of spread‐F types in ionogram images using support vector machine and convolutional neural network

Parameter

Value

Base model (pretrained)

VGG16

Optimizer

Adam, Adagard, SGD

Learning rate

0.01, 0.001, 0.0001, 0.00001, 0.000001

Number of dense layers

4, 5, 6, 7, 8, 9 layers

Input size

224 by 224 pixels

Batch size

32

Epoch (maximum)

100