Inverted Dropout not working

[rrmina]

1. Model doesn't learn when using inverted dropout
2. Vanilla Dropout has no problem

[rrmina]

I tried simply implementing inverted dropout by multiplying constants (and backpropagating multiply operation) and it worked! IDK why I was failing when before!

[rrmina]

Empirical evidences show that inverted dropout performs better than vanilla dropout!