Reformatting a semester of NTU's ML lectures for easy reference
This exists because someone sat through a full semester of deep-learning lectures and mapped the slides, timestamps, and key points to Notion, HTML, and PDF for the rest of us.

What it does
This repo is a complete set of study notes for Professor Hung-yi Lee’s 2021 NTU Machine Learning course. It covers the full deep-learning syllabus—from CNNs and Transformers to GANs, BERT, and reinforcement learning—with each chapter cross-linked to the original YouTube lectures. The author repackages the professor’s slides and explanations into three synchronized formats: Notion pages, a GitHub Pages site, and downloadable PDFs.
The interesting bit
There is no code here; the project is pure information architecture. Turning a video lecture series into a consistently formatted, triple-hosted reference is an exercise in documentation that other students clearly value—it has pulled in 581 stars. It is a useful reminder that curation and formatting can be a standalone contribution.
Key highlights
- Covers 14 major ML topics, from basic concepts through network compression and lifelong learning
- Every chapter links directly back to the corresponding YouTube lecture videos
- Available as Notion docs, a browsable static site, and offline-ready PDFs
- Diagrams and figures pulled directly from the professor’s official lecture slides
- Author transparently flags that a few small sections remain incomplete
Caveats
- A few sections are explicitly marked as incomplete by the author
- All content is in Traditional Chinese, so English-only readers need not apply
- Notes reflect one student’s interpretation of the lectures, so occasional errors are possible
Verdict
Worth bookmarking if you are learning ML and read Traditional Chinese, or if you want a template for turning a lecture series into a multi-format knowledge base. Skip it if you are looking for executable code or English-language tutorials.
Frequently asked
- What is chsiang426/ML-2021-notes?
- This exists because someone sat through a full semester of deep-learning lectures and mapped the slides, timestamps, and key points to Notion, HTML, and PDF for the rest of us.
- Is ML-2021-notes open source?
- Yes — chsiang426/ML-2021-notes is an open-source project tracked on heatdrop.
- How popular is ML-2021-notes?
- chsiang426/ML-2021-notes has 585 stars on GitHub.
- Where can I find ML-2021-notes?
- chsiang426/ML-2021-notes is on GitHub at https://github.com/chsiang426/ML-2021-notes.