[agravier]

I can't say how this specific CMU course compares with Ng's online course, but I can comment on Ng's course as compared to several other similar courses I took in Nanyang Tech. U. and Paul Sabatier (Toulouse 3), and my overall remark is that Ng's course is quite short on the maths, which makes it not sufficiently formal to deeply understand what goes on. However, it gives enough material and code samples to play with data. It can be nicely complemented with some self-study.

[okkercat]

It's worth clarifying that Ng's online course is essentially his Stanford course minus most of the math. The online version doesn't have the proofs or theory problem sets, while the Stanford version does. The problem sets, etc... are available at cs229.stanford.edu, if anyone is interested.