search

kmkolasinski / deep-learning-notes

Experiments with Deep Learning
1.35k stars 268 forks source link

Minor typo in normalizing flows slides #15

Closed christabella closed 5 years ago

christabella commented 5 years ago

Thanks for sharing your amazing notes! In /seminars/2018-10-Normalizing-Flows-NICE-RealNVP-GLOW/2018.10.10_Normalizing_Flows_NICE_RealNVP_GLOW.pdf page 9, the expression for the normalizing flow has a typo in the numerator of the Jacobian:

image

z should be f, as in the original paper by Rezende (2016):

image

kmkolasinski commented 5 years ago

Hi, I think this notation is correct, since on the left side you have an explicit definition of z(i): image so I can write this expression using f(z(i-1)) or z(i). Writing this using z is more compact to me.
However indeed, the notation between slides changes. This is because sometimes I try to write equations by my self and sometimes I copy things from papers. Since different papers use different notation, this may cause unnecessary confusions. During my seminars I always try to stress this differences.

christabella commented 5 years ago

Oh I see, thanks a lot for the explanation! It makes sense :)