Artificial Intelligence Stack Exchange is a question and answer site for people interested in conceptual questions about life and challenges in a world where "cognitive" functions can be mimicked in purely digital environment. It only takes a minute to sign up.
Sign up to join this community
Can anyone help me understand these functions described in the paper Noise2Noise: Learning Image Restoration without Clean Data
I have read the portion A.4 in the appendix but need a more detailed and easier to understand explanation. Especially where signum or sign function (sgn) is coming from along with other explanations.
(10),(11),(12)
