2017년 9월 27일 수요일

Intuition sigmoid function

Nebo - Sigmoid - Page 1

Sigmoid function
I have real value
but I want to change it into probability
Probability should be from O to 1
Look like below

If we have function like above, we can change any real value to probability

1 1 + e x

Now we got convert function
Let's call it sigmoid function

s i g m o i d x = 1 1 + e - x = e x e x + 1