Do all applications duplicate patients for class using Mitosis?

• A. True
• B. False
• C. Not sure
• D. Only some

Answer: (B)

Duplicating patient data with a method like Mitosis is a way to expand a dataset, but it isn’t done in every application. Some systems use this kind of duplication to balance classes or increase samples, while others either work with the original patients, use different augmentation techniques, or collect more real data. In practice, you also want to avoid letting duplicates cross train and test splits, which means duplication is used selectively within the training data rather than as a universal approach. So not all applications duplicate patients using Mitosis.