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.
Relatively tougher than previous two courses in the specialization. I'd suggest giving more time and being patient in pursuit of completing this course and understanding the concepts involved.
автор: Maksim S•
The difficulty of the course is inadequate and the pace is not balanced. Requires a lot of search for additional resources to understand materials. I cancelled.
автор: Kovendhan V•
After first two amazing courses in this specialisation, third course was a huge let down. One skill I learnt from this last course is patience.
автор: Martin H•
Lack of examples to clarify abstract concepts. Big contrast in quality compared to the other courses in this specialization.
автор: Dipto H•
Poor explanation by the instructor. Previous ones were very helpful. I didn't understand many topics well
автор: Lavanith T•
Everything is okay but there is a huge drawback with the programming explanation part.
автор: Xiao L•
very wired assignment, a lot of error in template code. The concept is not clear.
автор: Sai M B•
The lectures were not clear. I had to use other sources to understand lectures.
автор: Pawan K S•
This course was the hardest I encountered in this specialisation.
автор: Kirill T•
Way worse than the previous courses. Lacks explanations
автор: Kevin O•
Really interesting topic but not nearly enough detail.
автор: Amr F M R•
I think course material was not explained well at all.
автор: Timothy M•
The lectures and assignments did not synergize well.
автор: Desikan S•
Need to improve the content and delivery of content.
автор: Mohammed A A•
the course is too shallow with difficult code exame
автор: Scoodood C•
Video lecture not as intuitive as previous courses.
автор: Michael B•
Programming assignments not well explained
автор: youssef s•
very poor explanation of things
автор: Murilo F S•
not good teacher :Z
автор: Salah E•
again too hard
автор: ABHI G•
not so good
автор: Pradeep K•
Very Poor course on PCA, My recommendation. Don't watch it, Please don't waste your money on it.
1) The course on algebra and calculus was intuitive geometrically and well taught. Here the instructor bothered only doing derivations. No intuition based thinking, no analogy to real world. Just plain hard notations.
2) I don't think even the instructor would understand what was taught in the course. The excercises were completely unrelated to what was taught. Not much given examples. The examples choosen uses values like 0,1,2. Why can't you pick some odd numbers to make it bit more non confusion and clear.
3) At the end there was a review / Survey for every course. The review for this course is disabled. Clearly everyone knows how bad this is. Remove this course or make it better that is what the recommendation. There is no provision for zero stars, Had there one I would not given that also.
Really frustrated with the PCA course. Please don't waste your time and money . Get Gilbert Strang's book. That will do justice for every penny. I was able to complete the course, All thanks to Gilbert's book on Linear Algebra. Thanks
автор: Ivan F G•
The technical issues with Jupyter Notebooks really made me waste too many days, a lot of my time not learning but just fighting a poorly implemented exercise. And the technical issues did not help the teacher, the notebooks had a role to give us a place to learn new concepts that he mentioned in the fly, but there were no small sets of data to test the functions. I wasn't very patient with the way he will say things like "this is the formula from the previous video", and show a different formula from what he had on the previous video. Really? Why making things obscure on purpose? You can just have said, we had our previous formula and them used properties of the transpose of a product to get this other formula. Please make an effort to redo the notebooks. Even better, do some of the examples in Phyton during class for what you do in paper, and then let us take those examples and make a general function on the notebooks. Give smaller databases, something easy to plot and test, without waiting 20+minutes to have a result.
автор: Diego M E•
This course by no means retains the quality of its two predecessors. The difficulty of the programming assignments simply does not match that of what you watch in the videos and have to face in the practice quizzes. You need to have at the very least an intermediate understanding of both python and numpy. It should be stated somewhere that, if you really want to try and complete the assignments with a passing grade you'd need to invest **a lot** of your time. The course does not even remotely give you the tools necessary to complete these assignments; you'll need to research on your own and consult forums, videos, manuals, etc. My advice would be to learn python to an intermediate level first, then really practice with numpy, and just after that take this course. Otherwise you'll probably get very frustrated and quit.
автор: Alistair K•
The instructor is extremely dry and monosyllabic and does a very poor job of explaining topics, he frequently introduces topics by jumping straight into formulas without bothering to explain the topic or the use of the subject he is supposed to be explaining.
The majority of lectures are no more that the lecturer reading our a formula parrot-fashion onto the screen, he makes no effort to make the subject informative or explain what is going on. In many cases, he doesn't even bother creating a lecture, he simply posts a link to Wikipedia.
Lectures, quizzes and assignments are littered with bugs and omissions.
A negative mark on an otherwise excellent specialisation. This lecturer has no place teaching, he made the whole subject unapproachable.
автор: Pavel S•
The course has two problems:
complete lack of participation of staff in maintaining it. This leads to students giving each other incorrect advice and sharing incorrect code which passes the grader function check ( the grades are assigned automatically). The advice students give each other are frankly so wrong it is shocking.
the teacher focuses on formalised proof rather than concepts. Hence the lectures turn into lecturer applying mathematical transfomations which end in a formal argument without any intuitive understanding of the underlying subject. This course is the worst of the module with linear algebra and multivariate calculus being much better