Fig. 3
From: Automatic assessment of knee osteoarthritis severity in portable devices based on deep learning
Confusion matrix of K-L scales Confusion matrix shows the diagnosis results of model and summary by surgeons. True labels (diagnosed by surgeons) are the columns and the predicted labels (diagnosed by model) are the rows. The diagonal represents the number of correct predictions for each K-L scale. The total number of subjects in each group can be obtained by summing that respective column. Darker squares represent a higher percentage of that group classified for a predicted label) K-L Kellgren–Lawrence