Digits - nivida - cross-validation

Can anyone tell me if DIGITS uses cross-validation during the Image Classification process?

Also, can anyone send me the formula to calculate the Acuracy used by DIGITS during image classification?

Thanks.
Paulo

Digits is now an opensource project so you will be able get all the details at
GitHub - NVIDIA/DIGITS: Deep Learning GPU Training System
Let me know if you still have difficulty finding the answer to your question.
Thanks,
Nadeem