VA
Great course. Maybe there is one instance of wrong answer in one of the quizzes. Everything elese is perfect. Thanks IBM !

This course introduces you to one of the main types of Machine Learning: Unsupervised Learning. You will learn how to find insights from data sets that do not have a target or labeled variable. You will learn several clustering and dimension reduction algorithms for unsupervised learning as well as how to select the algorithm that best suits your data. The hands-on section of this course focuses on using best practices for unsupervised learning. By the end of this course you should be able to: Explain the kinds of problems suitable for Unsupervised Learning approaches Explain the curse of dimensionality, and how it makes clustering difficult with many features Describe and use common clustering and dimensionality-reduction algorithms Try clustering points where appropriate, compare the performance of per-cluster models Understand metrics relevant for characterizing clusters Who should take this course? This course targets aspiring data scientists interested in acquiring hands-on experience with Unsupervised Machine Learning techniques in a business setting. What skills should you have? To make the most out of this course, you should have familiarity with programming on a Python development environment, as well as fundamental understanding of Data Cleaning, Exploratory Data Analysis, Calculus, Linear Algebra, Probability, and Statistics.

VA
Great course. Maybe there is one instance of wrong answer in one of the quizzes. Everything elese is perfect. Thanks IBM !
AF
Great course and very well structured. I'm really impressed with the instructor who give thorough walkthrough to the code.
MB
A high quality course with lots of practical techniques
SS
I am gaining more knowledge in unsupervised machine learning. thank you
AD
It is a beautifully crafted course that looks at various clustering algorithms. More importantly, show the pros and cons of each algorithm/technique based on different patterns.
JJ
Excellent use of labs to study material. Lectures were very informative and quizzes well designed.
KD
Awesome and wholesome explaination of the concepts
MK
Thank you Coursera.Thank you IBM.Thank you to all instructors.
GS
Great mix of theory and application, not too superficial and not too deep. Amazing experience!
TT
Excellent course for me! I had a lot of "Ah ha!" moments during the course! Phenomenal!
EA
The material was well presented with many practical cases and exercises
NW
Great course for learning about Unsupervised Learning
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No math , only superficial concepts. Not recommending to anyone else..
Many typos and incorrect quizzes that haven't been fixed after several years.
This course is great from a coding and final project point of view. in this course I learned how to explore the different techniques and algorithms available to cluster unlabeled data. the notebook and videos are very great too. they walk you through the coding prospective step by step. but from the theory point of view, it is hard to well understand it well in these videos. you have to be aware of them first or study them on your own. although the quizzes aren't that much indicative about understanding. they need to be tougher and contain more questions. the last thing we should be provided the lecture sildes.
As usual with IBM courses, the concepts are well explained and the split between theory and demo on python is very useful. However in this specific course there are a LOT of mistakes in graded tests, which have been spotted by users for months but are unanswered by course owners in discussion forums. It is a shame, and hopefully the last two modules of the professional certification are benefitting from a better maintenance.
It is a beautifully crafted course that looks at various clustering algorithms. More importantly, show the pros and cons of each algorithm/technique based on different patterns.
Great course and very well structured. I'm really impressed with the instructor who give thorough walkthrough to the code.
Very Well Structured, concepts clearly explained, lots of Labs to get a hands-on practice and in the end a summary of all the key points explained.
A couple of Labs for DBSCAN and Mean-Shift would have been great.
The concept of SVD with the matrices was not very clear from the videos. Maybe some detailed notes on how the matrices are divided into the submatrices could be really helpful.
This was a very useful overview of two types of unsupervised learning - clustering and decomposition. I had a passing familiarity with some of these techniques, but this course introduced me to a wider array of techniques I had not heard of, along with the underlying theory and comparison between models.
This course enabled me to further develop my standard work process in performing Machine Learning activities. It also expanded my existing skills set with the addition of Unsupervised Machine Learning methods --this actually significantly improved my model performances.
I found the learning experience extremely good and absorbing. The approach of the program to impart theoritical background of algorithms before taking of Labs is very helpful. Also, after the course one gets a broad view of the contexts behind different approaches.
Excellent course on unsupervised ML. Clustering, dimensionality reduction and even classification are very well explained and practiced with high level coding on Python. Thanks IBM.
Great course. Maybe there is one instance of wrong answer in one of the quizzes. Everything elese is perfect. Thanks IBM !
Excellent use of labs to study material. Lectures were very informative and quizzes well designed.
Un curso que en verdad me hizo pensar e ir mucho más allá de mis limites, altamente recomendable.
Great mix of theory and application, not too superficial and not too deep. Amazing experience!
Excellent course for me! I had a lot of "Ah ha!" moments during the course! Phenomenal!
Exceptional content. Thank you so much for taking time to create this for us.
I am gaining more knowledge in unsupervised machine learning. thank you
The material was well presented with many practical cases and exercises
Sometimes so fast, but it motives to research more and more about ML.