Create a Neural Network in Java (Udemy.com)

I think the instructor can use 2D arrays to represent matrices throughout the course. He used 1D arrays to represent matrices, which made the code harder to read. Then, I got lost in the math part of the course. This seems more like a Java programming course than a neural network course. I got confused in the last example. The instructor spent a lot of time writing text labels and images files with different colors. This does not seem to be the focus of of neural network. It is just data visualization. The most essential part is to predict the output array when passing the input array to the neural network.

This is a great course. I found it to be a wonderful learning experience. The instructor has an amazing ability to explain complex concepts in a way that makes them easy to understand. The underlying math is clearly explained in a well structured way that fits very well with the code I would highly recommend this course to anyone with a working knowledge of Java who wants to understand how Neural Networks, which form the basis for Machine Learning and Artificial Intelligence, work.

I think John is the best teacher possible. I've done tons of courses on Udemy(Udemy can confirm ;)), but I I have to say - they're just not the same quality. First - it's not only about the knowledge - it's also about the journey that John walks us thought. It's close to the reading of a book experience, when you see how the plot unravels etc. The courses are always detailed, thorough and even if problems seem challenging at first - John makes them easy to understand. Thank you!

I started this course to see if I could switch from python to java when it comes to machine learning. Since I prefer coding in java, this would make the whole process of studying and trying out different ML methods and technologies more fun. This course has given me a lot of new insights, good code that I can work with and confidence that it is possible to pursue ML in java. Two small remarks: (1) The code was occasionally still a bit 'pythonesque' for my taste. Mainly because the instructor uses 'var' quite a lot and sometimes writes long methods with lots of newlines in them. I felt like some opportunities for encapsulation and simplification were missed because of that. (2) The mathematics part is very interesting but it would have benefited from a longer introduction: Why matrix multiplication? What is gradient descent and backpropagation? I felt like I lost the bigger picture here and there during sections 2-5. I would certainly recommend this course and this instructor. There is a lot of interesting information here and it is a good step-up to working with neural networks yourself. Also the instructor is clear, concise and clearly knows his stuff.

This is an excellent course! John Purcell is a brilliant lecturer. This is one of my favourite Udemy AI courses. I use it as a toolbox item i.e. I constantly refer back to this course when coding my own neural networks. I would say this course is a must have for anyone serious about a deeper understanding of neural nets and being able to code your own neural nets.

This course is one of a kind! Creating a Neural Network in Java is such a fabulous way to expand on Java skills in the context of AI. I am super excited and grateful for this learning experience.

This course is fascinating and informative! I have been searching for such course for a long time. John's explanations are great and understandable! I strongly recommend to take this course for everyone who wants to deeply understand how a neural network can be created by using Java and what mathematical approaches are used there. Thanks a lot!

This course discusses the prerequisite concepts for Neural Networks . The mathematical concepts 1) linear algebra for matrices and 2) calculus for gradient descent are reviewed so that the theory can be coded in Java.

The course provides an excellent introduction to the topic of Neural Networks. It allowed me to get to know and understand (at least at a basic level) the terminology and concepts encountered in many articles on the topic. The coding sections are relatively easy to follow, although in my opinion they do require to be already at ease working with Java (so I suggest taking a course on that before in case you are not). Overall, I have taken many courses from John over the last year, and this fully lived up to my high expectations.

John is a natural teacher and he follows his tried and true method of starting off with simple ideas and then building upon them... very effective!