I would love some pointers to additional references for each video. Also, the instructor keeps saying that the math behind backprop is hard. What about an optional video with that? Otherwise, awesome!
This course is really great.The lectures are really easy to understand and grasp.The assignment instructions are really helpful and one does not need to know python before hand to complete the course.
by Tyler K•
Fantastic as always. I do wish it had a lot more math but I understand the challenge delivering that to a larger audience. My favourite aspect of Andrew Ng's classes is actually the absolute response by the grader system.
I learn very effectively in environments where I receive complete feedback on my problem submissions. Allowing me to correct my understanding of the material and retry. Contrast this with the PGM course where total scores are not returned and there are a limited number of submissions. I felt that my learning was stunted in that environment as there was no opportunity for me to correct my understanding of the material myself and have it re-scored.
Hopefully we'll see more math heavy classes in the future that retain this style :)
by Arpit S•
Finally, I had to sit down at a stretch and finish the course at a go! I think it was completely worth it and I thank coursera team for providing me financial aid to take this course. I am very grateful to have got this opportunity to learn from this excellent course. Will definitely complete all courses within the deep learning specialisation by a little at-a-stretch effort and i am sure it'll give a sweet boost to my understanding. The course material, Professor Andrew's way of explaining and the assignments are all incredible and i really enjoyed the modules for implementing back-prop the from-the-scratch way! Personally, I also feel the best way to take these courses is at a stretch which completely connects the dots for me. Thank you team :)
by Bryan H•
The programming assignments give you the hands-on experience you need to feel comfortable coding your own ANNs from scratch. Andrew's lectures are well-paced, easy to follow, and enjoyable.
Room for improvement:
The Jupyter notebooks, although convenient for the Python programming assignments, are unreliable. I spent 25 % of my time re-writing code because the notebooks wouldn't save, and I had to reload certain assignments multiple times, often at different times throughout the day. If you have made progress and the page doesn't save, then leave the tab open and copy-past your code into a new instance. Nonetheless, I can't fault the Instructors for the lack of fidelity in the intercommunication between Coursera's platform and Jupyter's notebooks.
by Liaw S W•
It was a great course, very well organized but after doing the programming assignments, I feel that I might not have fully grasped the concepts in lectures. The descriptions in the assignments were great and helpful, but I feel that the pace of the course was too quick, too easy. I feel that I must be missing out on something. Maybe it's because the teacher has done a very good job in explaining hard to understand concepts to the degree that they seem too easy to understand. Since this is only an introductory course in the series, it is understandable that it is supposed to be easier. Don't get me wrong, this course has very much substantial contents to it! Nonetheless, it was a great foundation course for the specialization! Thank you teacher!
by Noelle M V•
If you took Andrew Ng's original Machine Learning Coursera course in 2012 (as I did), you expect nothing less than an excellent course. Unlike Neural Network or Machine Learning courses at other learning sites, this one is far superior. If you are to ever going to fundamentally understand what is going on inside all those convenient Machine Learning and Neural Network software libraries and frameworks (versus just blindly using them), or perhaps build your own libraries; then you need this course. And, indeed, it is important to understand because not understanding removes all intuition as well as removes knowledge of boundary and limiting cases that you may encounter, which will make things harder for you. I highly recommend this course.
by Keely W•
I'm LOVING these classes!! The instructor, Andrew, is excellent, and the material is presented in a logical progression so that it's not too overwhelming. It definitely helps to have some background in math, namely Calculus and Linear Algebra. The programming assignments can be a bit tough if you don't truly understanding which Linear Algebra methods to use, i.e. dot product multiplication vs element-wise multiplication, but usually the instructions are good. However, I found myself having to look up a lot of Python and Linear Algebra basics online (Stack Overflow is your friend in this case.)
Definitely a challenging set of courses in the Deep Learning Specialization, but very well presented, and extremely interesting (at least to me.)
by Sarvasv A•
THE best intro to deep learning course out there! I would recommend it 10/10. You get to develop neural networks from scratch, using just Numpy... no TensorFlow or sci-kit learn. It might take time to think about the code structure and dimensions of matrices of various parameters, but in the end, it only helps in developing a better understanding of how NNs work beneath the TensorFlow/PyTorch (or any other high-level ML library out there) models in practice. Although the meat of NNs, i.e. calculus, is not really required to complete the course (they provide you with all derivatives required), I'd suggest trying working it all out on paper/iPad/tablet by hand. It's as important as coding itself if you wanna delve further in the field.
by Gary K N•
This course allows you to quickly catch up to the fundamentals of building multi-layer NN models, by viewing it as stacks and layers of logistic regression units. You will sail through this course if you already know logistic regression. Even though nowadays most people don't even need to understand how the calculus actually works beyond a basic intuition, the calculus required for back propagation are well explained; detailed yet presented well for people with high school calculus to understand. The exercises are very simple with an objective not to test your ability to write code, but your understanding of how the steps are put together. The answers are practically given to you, you just have to put them together in the right way.
by Akhil V•
This course is phenomenal. Even as someone who's spent almost a year working as a deep learning engineer, there were still many lectures I found incredibly useful. I believe the matrix dimension lecture will permanently change the way I structure the code for my neural networks in the future. If I had one criticism it'd be that it could perhaps get progressively harder. I love the ultimate task (of a logistic classifier), but as we go from week to week, I think there could have been less hints. Even by the end of the course, I felt like I was being spoon fed through the programming assignments. This is a problem, because I'm less confident than I would have been if I'd figured out the Lmodel forward propagation (for example) myself.
by Ferry v A•
I'd recommend this course to people who are familiar with basic obect terminology used in computer science (ie tuples, arrays) and know how to code in atleast one programming language. Personally, I'm not well versed in maths beyond the high school level and didn't know any python before starting this course. Andrew takes his time to explain how the mathematical notations work however, and if you take notes during his lecture it's often not difficult to find an implementation in python. If any more advanced mathematics from linear algebra or calculus come up it is patiently explained.
The course strikes a good balance between teaching the mathematical details of neural networks and applying them hands on when building a model.
by Branislav N•
This is an amazing course. As someone who is a beginner in neural networks and AI in general, I really enjoyed this course. The main plus of this course is that it offers straightforward hands-on programming exercises in Python with very clear instructions and meaningful sub-exercise. The fact that the course is implemented in Python is a huge plus, even for beginners in Python programming. This course enables you to experiment with your own data, after you have learned how to build a deep neural network. Indeed, I did not expect to build confidence that quickly and have own ideas about deep learning projects, after this course. This was a pleasant surprise and I will definitely continue going through the whole specialization.
by Gokula K R•
Well, the concepts were crystal clear. To be honest, I got them theoretically but when i began coding, I could see that I could not connect few pieces here and there as there was the template given and I just had to fill in the blanks with whatever is given at the beginning of the module. I would suggest to let the learners code few functions from scratch, so that we could know what parameters to input, and what to return in the end. Also I think suggesting learners to visit documentations of few important modules like numpy, pandas, matplotlib etc. and instruct the learners to import them by themselves than importing them straight away at the beginning. Hope this would inculcate the developer culture and practice to beginners
by german b•
I have just finished the course. It was a great course overall. The videos provide the right amount of information in a very didactic way. His mathematical approach to the problem makes this course a good choice for those with not much background in linear algebra. The quizzes are a very good tool to wrap the fundamentals of every week and all the answers are addressed in the videos. Now, the programming assignments were the best of all the course. Each of the programming exercises gives you the tools and a step-by-step explanation to build functional codes. Every programming exercise that you complete helps you to understand the problem deeper and deeper! Can't wait to continue with the second course of the specialization!
by Anton V•
This is a great introductory course to deep learning and neural networks in general. The lectures are brilliant and so are the assignments. Best experience I've had with an online course. This one actually makes you want to complete it. I had some Python experience and a very foggy idea of how neural networks work after watching some youtube videos, however this course gives some really nice foundation for future development in the area. The assignments are easy to follow and give you code to use with things to fill in based on your understanding. This is a good way to get you started, I can now use those ideas to play around with a personal project and learn more. Looking forward to the rest of the courses in the series.
by Diego V R•
After Prof. Ng's Machine Learning Course, this new course appears at our Coursera's dashboard. I, again, enjoyed listening to Andrew's lectures. My personal recommendation is to first tackle Stanford's ML course and then this one. However, if you can only pick one and you are doubting between Stanford's Machine Learning Course and this one, pick this one, since it covers neural networks with way more detail than the original one. However, take into account that other machine learning related topics do not appear here such as dimensionality reduction techniques like PCA. Amazing treasure to the Deep Learning beginners out there. Thank you Prof. Ng and every one else who made this possible (The whole deeplearning.ai team).
by Sheyem K•
Definitely one of the best online classes I've taken. Even having studied this material a little bit before hand, I learned a lot--mainly in ways of building an intuition of why certain functions are chosen, or work the way they do. In this respect, I think there are few better at getting to the core of teaching: simple is better.
I appreciate that the course is designed to widen the reach of deep learning, but for those perhaps either more mathematically inclined or just extra curious, I highly recommend Lazy Programmer's Data Science: Deep Learning in Python class on Udemy for only $10. Gives a little more mathematical rigor...and hey extra practice in coding up a basic NN all in one script doesn't hurt. Thumbs up Ng!
by Vivek R•
Excellent course for beginners who are ready to put in extra effort to understand the material. By extra effort I mean repeatedly viewing the lecture videos and persisting with the programming assignment until the techniques are clear. That said, I am personally slightly disappointed with this course. Having completed Andrew Ng's original 2012 Machine learning course, I don't think there is anything new here for users like me. However it served as a good refresher. The other complaint I have is that the programming assignments are too simple. It's basically paint by numbers. If you really want to understand the material, you should write the programs from scratch and use any of the data sets available on the internet.
by Abhimanyu A•
What a marvellous roller coster ride it was! Thank you so much Andrew Sir and the entire team for putting up these efforts to provide such high quality material accessible to everyone! Cheers to all of you! I wish one day I would be able to share my knowledge like this! I wish!
One thing that I would like to add/suggest that, please provide some reference links, book recommendations and other useful information in the end of the program for anyone who wants to do some more research on the roots of the algorithms. Doing this, it will continue the learning path for the student and would keep the fire burning in him/her.
Please let me know if you have any questions regarding this review.
Thank you once again. :)
by José A V M•
Amazing!! I've took part of the Udacity Deep Learning Nanodegree, but the math there was just not enough to my taste, here the thing is different, I love all the notation and the math behind. Also there are more focus in build the model step-by-step. As recommendation, I would like to include an activity to sketch the functions of the deep learning layers. For example, if I would like to build from scratch a deep learning model, what will be the functions I will need (in the assignments I could deduce them, but I would have like to have an activity related to this). Also I would like to have a little more focus in visualizing a small neural network, and write the values from the matrix to the visual representation.
by Pradeep K P•
Excellent course by Andrew and team. I am a big fan of andrew teaching style (since I took his ML course), no fancy screens just basic slides with great contents and explanation. My personal fav part in this course is programming assignment, this part is made very thoughtfully I think there are always some clue in the instructions and comments which one can pick to develop code to solve assignments.
For anyone planning to take this course I would suggest to refresh maths mainly topics like calculus, Linear algrbra, though Andrew explains required maths with a great ease. but still good to have maths background.
I am excited and looking forward to explore upcoming courses in deep learning series.
All the best!
by George G•
Machine Learning is quite demanding of Linear Algebra and Calculus but in this course, they won't be a hindrance as Andrew manages to deliver core concepts satisfactorily even without diving deep into the math behind. The course is designed to be approachable to the widest possible audience interested in Deep Learning. This results in programming exercises being pretty much "fill in the gaps" format which may come across as way too easy and they surely are. The key in my case was to try to implement the entire notebooks from scratch a week later and that's where the programming exercises shine. These are very well-crafted concise nuggets of code that shed light on abstract ideas excellently in a programming way.
by Paolo A•
As Business Executive I was rather skeptic and a little worried starting this adventure "in deep" as I have not programmed for many years, but still have some notions of linear algebra for luck. My personal objective is to understand AI deep networks to propagate it inside my Firm and especially to improve quality of living, freedom, sustainability in society. I think I got the right direction!
I have been very impressed by Andrew's approach and style that make you comfortable learning these not simple matters. I wish I could have time to continue the Deep learning Specialization.
Thank you very much to Andrew , to the whole Faculty Team and to the brilliant colleagues attending this wonderful course.
by Syed M I•
Mr Andrew will make you climb the mountain while holding your hand.
There were sections in which I found the subject getting a better of me, but at the end of those videos he would come up and say "Don't worry if you didn't get full sense of what's going on" or "This is one of the hardest mathematical portion in machine learning" or "Even after all these years i am sometimes not confident of my approach but the model works magically".
In the confusing sections, he almost writes down the code for you to copy-paste. He had pre-written most of the codes for us, but make us feel that we are the ones writing it, because the ultimate aim is to learn things and be confident enough to replicate the learned skills later.
by Mukesh K•
First of all, thanks for offering the course on the platform. Before starting the course I had a good knowledge of machine learning and have been thinking about exploring the field of Neural Networks and Deep Learning. I could not do it in my college but the course provided me the opportunity.
The course material is very concise. Professor Andrew Ng presented very complex concepts in very easy language. The Programming Assignments are very helpful. They test and enhance both your Python Programming Skills and python code Implementation skills. While doing the Programming Assignments I was not only learning the concepts but also enjoying them. The entire course as well as the assignments are very much engaging.
by Jia D•
After taking this course, I have no doubt that Andrew is one of the best instructors in deep learning! He made you feel everyone could learn deep learning and do well. The quizzes examine your understanding of the concepts with many details, and the programming assignments are very well designed - one is built on the other with an increased level of difficulties. However, they never overwhelm you if you have the patience and believe you can master them eventually. The interviews with masters in machine learning also make this course even more exciting. Highly recommended to everyone who wants to start your journey in deep learning! Excited to start the next course in this specialization! Thank you, Coursera!