Refrain from using global variables in Validation().
Refrain from using global variables in Validation().

Use consistent naming of validation variables.

dongjoon-hyun/DIGITS,TimZaman/DIGITS,brainstorm-ai/DIGITS,ethantang95/DIGITS,bygreencn/DIGITS,bygreencn/DIGITS,TimZaman/DIGITS,ethantang95/DIGITS-GAN,gheinrich/DIGITS-GAN,jmancewicz/DIGITS,ethantang95/DIGITS-GAN,Lucaszw/DIGITS,brainstorm-ai/DIGITS,jmancewicz/DIGITS,Deepomatic/DIGITS,dongjoon-hyun/DIGITS,TimZaman/DIGITS,gheinrich/DIGITS-GAN,bygreencn/DIGITS,jmancewicz/DIGITS,ethantang95/DIGITS,dongjoon-hyun/DIGITS,Lucaszw/DIGITS,ethantang95/DIGITS-GAN,brainstorm-ai/DIGITS,jmancewicz/DIGITS,Deepomatic/DIGITS,Deepomatic/DIGITS,bygreencn/DIGITS,ethantang95/DIGITS,gheinrich/DIGITS-GAN,ethantang95/DIGITS,dongjoon-hyun/DIGITS,gheinrich/DIGITS-GAN,TimZaman/DIGITS,Lucaszw/DIGITS,brainstorm-ai/DIGITS,Lucaszw/DIGITS,ethantang95/DIGITS-GAN,Deepomatic/DIGITS