Jul 17, 2018
This is one hell of an inspiring course that demystified the difficult concepts and math behind PCA. Excellent instructors in imparting the these knowledge with easy-to-understand illustrations.
May 01, 2018
This course was definitely a bit more complex, not so much in assignments but in the core concepts handled, than the others in the specialisation. Overall, it was fun to do this course!
par Nicholas K•
Apr 28, 2018
It's a shame. There's lots of good material and I learned a lot. But a staggering amount of time was wasted figuring out gaps in the instructions - portions felt more like hazing than teaching.
par Arnaud J•
Jun 12, 2018
This course is way more brutal than the two previous courses in the specializationIt is also very mathematically oriented, it lacks the graphics / animation / intuition that was given in the first two courses.However, if you make it, you indeed have a good understanding of PCA.
par Nigel H•
Apr 18, 2018
I want to give this course a higher rating but I was disappointed; the production standards are as high as ever but the assignments are a bit heavy on the Python. If you are inexperienced in coding Python you may be in trouble. This is not the case for the first two courses of this specialisation. If it is the maths that concerns you .. you are in safe hands. very well taught. Thanks
par Ronny A•
Oct 15, 2018
The content is good. But there were Jupyter Notebook/Server problems. (i) Submit button on notebooks did not work. Posted about this and staff did not respond or help. Then I found a workaround and shared with others. (ii) The graded assignments could be run ok, but the optional ones could not run at all owing to server timeout/bandwidth problems.
par Toan T L•
Oct 03, 2018
Thank you to all the professors and staffs for such a wonderful program. I did learn a lot.
This last course is indeed a fun and challenging one. But it fells short compared to the other two due to some aspects which can be improved in the future.
Nevertheless, I'm glad that I can learn about PCA.
par Alexander Z•
Sep 14, 2018
Good Course, but
Too less examples to do the quizes on the first run.
Programming assignments are not clearly stated, so you need unnecessary much time to succeed.
I liked the Linear Algebra & Multivariate Modul more!
par Yuxuan W•
Oct 05, 2018
Always spending much more time on coding than needed. Same result but no credit :(
par k v k•
Nov 30, 2018
its a good course to learn mathematics essential for machine learning
par Cécile L•
Apr 14, 2019
Amazing topic, great teachers and nice videos, but assignments can be slightly frustrating and some aspects (matrix calculus, derivatives, etc.) are really expedited... Still worth your time!!!
par NEHAL J•
Apr 21, 2019
The course was highly challenging. I wish some of the explanations were detailed and the assignments had better instructions.
par Ana P A•
Apr 22, 2019
The professor of other two a way better. This one skips some steps in some explanation that makes the tasks hard to do
par gaurav k•
Jul 03, 2019
More examples and visualization should be there to explain.
par Mark P•
Jul 30, 2019
This course had a lot of potential but there were a number of inconsistencies, cut/paste comment bugs, that make it more challenging than it needs to be. The comments in the notebook exercises should be triple-checked with the text above to ensure consistency of variables. Far too often these would be mixed up, or the input/output descriptions would be incorrect. Or the unit test would have different dimensions. Lectures often left out steps - e.g. "because of orthonormal basis, we can simplify and remove a bunch of terms" - how exactly? A extra few seconds of explanations would allow students to follow more closely. Notation in lectures is sloppy - sometimes terms would be missing and then the video would quietly cut to a correction. "j's" and "i's" indices were interchanged frequently making the derivations how to follow. Also, this isn't a course on unit testing - some more tests should be included to help students debug individual functions rather than relying on the final algorithm (e.g. PCA to work). It should be explained why the "1/N" term for XX^T is not necessary even though it's in the lectures. On the plus side, the added written notes were welcome and fairly well done.
par Omoloro O•
Aug 07, 2019
Compared to the first two courses in this specialisation, this course was not very engaging. Additionally it was often hard to see what the end-goal was and the instructor seemed to be going deep into details without making the practical reasoning behind it clear. Furthermore, a lot of the exercises involved repetitions of tasks that can easily be done by computers.
par Ben H•
Aug 20, 2019
This course had a lot of potential, but unfortunately the pacing, structure, and teaching was not up to the standard of the other two courses in the specialisation. The teacher is clearly very knowledgable about his subject, and seems like a really nice person, but delivers the material in a very direct, formal mathematical style. This makes it much more difficult to gain intuitive insight into the subject matter.
Given the level of the past two courses, this felt like way too big a leap. Don't get me wrong — this course is still worthwhile, but could use some refining.
par Gurudu S R•
Sep 16, 2019
Tutor is not clear and concise on the concepts. Need more examples for Week 2 and Week 3.
par Jean D D S•
Aug 31, 2019
I would ask the lecturer to go on more detail on the explanations and do (more) examples.
The lecturer tends to skip a few steps during calculations and demonstrations.
par Hsueh-han W•
Sep 20, 2019
many steps are not clear enough that I have to spend a lot of additional time to figure out the details.
par Adrian C•
Sep 22, 2019
The derivatiion of the PCA in the last week can be broken into 2 weeks with different programming assignments to get a closer and more confident understanding of the PCA method.
par Marina P•
Sep 06, 2019
The course is interesting, but some of the quizzes were not done very well. After the first 2 parts of this course, which were just amazing, this one seems kind of worse, although by itself its not that bad.
par Rafael C•
Sep 24, 2019
The Classes didn't give the knowledge to solve the assignments.
par Nont N•
Sep 25, 2019
I am a bit disappointed by this course. The professor didn't do much to help learner understand what's the meaning of the math we are looking at. Much of the quiz is just math grinding. The programming assignment require a lot of my effort in programming, but not much on math.
I'm not saying that this course is very bad, but Compare to the previous 2 course in the Math for ML specialization, provided by the same university, this one is obviously inferior.
par Shuyu Z•
Oct 18, 2019
The videos and instructions for the assignment are not clear.
par Matan A•
Oct 20, 2019
The is a lot of gap from what the lecturer learn and what the assignments requires.
Nov 06, 2019
Math for the sake of math. Too big jumps in calculations, too complex.