Fig. 6From: Creation of an artificial intelligence model for intubation difficulty classification by deep learning (convolutional neural network) using face images: an observational studyLearning curve for supine-side-closed mouth-base position. The black line (training) represents the training image data, and the gray line (test) represents the test data. The learning curve of the test data follows the learning curve of the training data, indicating that the AI model is learning properly. The AI model showed 80.5% accuracy for epochs 20Back to article page