2 de jul. de 2020
Excellent course !!!\n\nThe flow is perfect and is very easy to understand and follow the course\n\nI loved the simplicity with which Andrew explained the concepts. Great contribution to the community
7 de jun. de 2020
Amazing course for anyone wanting to jump in the field of deep learning. Andrew explains the details very well. The assignments were structured very good that provided detailed instructions. Thank you
por Aaron H•
1 de sep. de 2017
Good coverage of the basics of neural networks with hands-on exercises using numpy.
The notation is a little surprising -- most of the time we math people talk about dy/dx as being the derivative of y with respect to x. That is, when I wiggle x a little, what happens to y? The notation in this course assumes that everything is a derivative of the cost function with respect so something else, so the notation only includes the "something else". For example dW is the derivative of the cost function with respect the weights in the matrix W.
If you are not careful, it is easy to lose track of what dZ means.
If you are pretty comfortable with vector calculus, it moves pretty slowly at times. If your calculus is rusty, I think the speed is probably perfect.
por Jeffrey W•
8 de oct. de 2017
While I'm good at perl, I wanted to learn python, and as I'm a learn-by-doing kind of person, I thought an ML course in Python would be a good place to start. I was surprised that "Deep Learning" was a bunch of the neural network techniques I'd played with in the past, and was a bit apprehensive about the amount of calculus that would be required.
This class breaks down the ML concepts quite simply, and helps you understand how to actually build and apply logistic regression, and then use that as a building block to deeper neural networks. They also give you an intuitive understanding of the mechanism and underlying math, without requiring endless pages of derivations.
I recommend this course to anyone looking to get a solid overview of ML techniques.
por Shehryar M K K•
1 de oct. de 2017
This was my first foray into the field of deep learning. Dr. Andrew is an amazing instructor his humble demeanor made learning really enjoyable. I really like where he went into derivatives and did it step-by-step making me understand the math behind the scenes. The programming assignments were super easy only difficulty was my lack of practice with python. If I would have to improve on this course. I would say add articles for further readings with a short quiz after it related to the article. I would also like to take this opportunity to thank the coursera team who accepted my application for financial aid without which I would have never earned this certificate. Thank you for allowing me to learn something new and for making it easy and enjoyable.
por Anantharaman K•
9 de nov. de 2020
The course enables us to develop a deep neural network without getting too much into mathematics and technicalities. The programming assignment provides us with hands-on experience on development of neural network. There is still a lot to learn. But as advertised the course provides us with a thorough but succinct overview about neural networks. A special thumbs up to the instructor Andrew Ng and his team for creating a understandable course on DL. I can say confidently that I'll be able to develop a neural network for binary classification problem. Disclaimer: the above is my opinion alone and it can vary from learner to learner. This course also requires a basic knowledge of python and its numpy library and high school matrix algebra and calculus.
por Tyler K•
19 de ago. de 2017
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 :)
por Arpit S•
9 de dic. de 2018
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 :)
por Bryan H•
28 de may. de 2018
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.
por Liaw S W•
17 de sep. de 2017
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!
por Noelle M V•
29 de ago. de 2017
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.
por Keely W•
11 de mar. de 2018
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.)
por Sarvasv A•
22 de jun. de 2020
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.
por Gary K N•
28 de feb. de 2020
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.
por Akhil V•
9 de ago. de 2018
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.
por Ferry v A•
7 de feb. de 2021
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.
por Branislav N•
12 de abr. de 2020
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.
por Gokula K R•
19 de oct. de 2019
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
por german b•
28 de jun. de 2021
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!
por Anton V•
30 de may. de 2018
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.
por Diego V R•
26 de ago. de 2018
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).
por Sheyem K•
3 de sep. de 2017
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!
por Vivek R•
24 de ago. de 2017
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.
por Abhimanyu A•
3 de mar. de 2018
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. :)
por José A V M•
26 de sep. de 2017
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.
por Pradeep P•
20 de nov. de 2017
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!
por George G•
31 de may. de 2021
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.