[smaddali]

i thought Daphne Koller taught CS228. probabilistic graphical models. It was very very grueling when i took it in 05.

[wichert]

Daphne has a PGM course on coursera as well. From the half dozen courses I have done on coursera that was by far the most difficult one, to the point where people were talking about making t-shirts stating "I survived week 5". Personally I found it the most interesting and rewarding as well.

[superfx]

Oh yes my bad. I meant to say I took Andrew's CS229, and Daphne's CS228. I never took CS221.