Sophomore

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Sophomore computer science student, looking at ISLP vs ESL vs mlcourse.ai

For background, I am currently a computer science sophomore, with intermediate skills in Python and C++. I have taken university courses on data structure and algorithms, calc 1-3, linear algebra, and an introductory stat course (which covered confidence interval, Z and T sample test, and hypothesis testing). I also have read up to Chapter 5 of the MML book and am currently self-studying probability theory (through STAT 110 video and textbook by Joe Blitzstein). I have done a few beginner ML projects with Tensorflow and scikit-learn, but most of the work is in EDA and feature engineering, while the ML model is just a black box that I plug and chug. So now, I want to learn how to implement ML models from scratch. I've been skimming over ISLP, which many people online recommended, but it seems that while it talks about mathematical equations used, I don't really get to implement it; as the labs are a lot of importing an already implemented model then plug and chug. So now, I am looking at ESL, which I believe is the more detailed and mathematically rigorous version of ISL. However, there aren't any labs or code along to ease beginners in (which I somewhat understand given the intended audience of the book). Another option I am looking at is mlcourse.ai, which seems to cover mathematics and has some lab/code along for it. But it doesn't seem to span as many subjects as ESL does. Given these options, I am unsure of which one to pick, should I first finish my self-study on probability theory and then Chapters 6-8 of MML? Then should I do ISLP first or just get into ESL? Or maybe I should do mlcourse.ai first then into ESL? Or should I just do the ML course/book along with the maths? In addition, there is also the data science + feature engineering stuff which I wonder if I should study more about. Sorry if this seems like a mess, there are just so many things to ML that I am kinda overwhelmed.

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[P] My deep learning library from sophomore year in high school

c0deb0t•This week

[P] My deep learning library from sophomore year in high school

I made a deep learning library in Java a while ago to help me understand how neural networks work. I implemented vanilla fully connected layers, convolutional layers, pooling layers, GRU cells, multiple gradient descent optimizers, and other cool stuff. I also strived for an object oriented framework with a Keras-like interface. It took me quite a while to understand the full backprop algorithm as I did not know how derivatives work when I started. Also, many intrinsic details about how neural networks operate were obscured behind very similar mathematical equations in most of the blog posts I've seen (although Stanford CS231 was very helpful). In the end, I derived the backprop equations for updating the weights by hand for all of the layers in the library. As such, I want to share my code and maybe help others that are learning about neural networks. Note the library is very slow. There are no fancy GPU speedups because the library is pure Java. You can test the pretrained MNIST by running TestMNISTDraw2.java in the src/tests folder that also contains other demos. Edit: Is this too "beginner" for this sub?

#reddit #deep #learning