Table 3 Distribution of the Rebalanced Dataset.

From: A metaheuristic optimization-based approach for accurate prediction and classification of knee osteoarthritis

Dataset split-up

Grade

Number of images

% of total

Training set

Normal

1620

31.56%

Osteoarthritis

1540

30.00%

Validation set

Normal

420

8.18%

Osteoarthritis

430

8.37%

Testing set

Normal

569

11.08%

Osteoarthritis

552

10.75%

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