Purpose
Kai Course Notes is a personal academic archive maintained for educational and reference purposes only. It is inspired by open note-sharing initiatives such as Cambridge Notes, and exists to help students build a deeper understanding of course material — never to facilitate academic dishonesty.
The public collection is a curated, policy-compliant subset of a fuller private archive, generated mechanically by a sync script with an explicit exclusion list. Compliance is enforced by machinery, not memory: if something must stay private, a rule guarantees it never reaches the public repository.
What you will find here
- My own notes — handwritten and LaTeX-typeset, always with sources where they exist.
- My own homework write-ups, lab reports, and projects — shared as references and learning aids, where course policy allows.
- Lecturer-provided slides and handouts — only where the institution's policy permits it (see the per-school breakdown below), under a strict takedown promise.
- Reference book lists — every course README lists the books used, so you can obtain them through proper channels.
What you won't find here — ever
- Published textbooks. They are copyrighted commercial works; the archive lists them and links official free versions where those exist, but never redistributes the files.
- Official homework or exam solutions, and OJ reference programs. Removed for academic integrity, across all schools, including from the repository's git history.
- Institution-owned materials where policy forbids redistribution — see below.
- Anything containing other people's personal information (graded papers, rosters, and the like).
How each institution's policy is applied
SUSTech (Southern University of Science and Technology)
SUSTech publishes no explicit policy on students redistributing course materials, which is typical of universities in mainland China — the area is, in practice, a gray zone governed by general copyright law, under which lecture slides and handouts remain the intellectual property of their authors.
Accordingly, lecturer-provided materials from SUSTech are shared here in good faith, for personal study only, under this standing promise: any lecturer may request removal of their materials at any time, removal is honored promptly, and once material is removed, all downloads — including those made before the request — are no longer authorized. My own work from SUSTech courses (notes, homework write-ups, lab reports, projects) is shared freely.
UC Berkeley
Berkeley course policies prohibit publicly posting solutions to homework, labs, and projects — assignments are reused across semesters, and public solutions directly harm future students. This archive therefore publishes none of my assignment work for Berkeley courses: no homework, no labs, no projects.
Staff-authored materials (lecture slides, discussion and tutoring worksheets, study guides, exams, review sessions) are not redistributed either; they are available to enrolled students on the official course sites, and past exams live in the courses' own public archives. What you will find: my own practice code, my own experiments, and my web-native study notes on the Notion branch.
University of Oxford
My summer programme's enrolment agreement contains an explicit intellectual-property clause: all materials provided by the college — programme materials, reading materials, recordings of lectures, seminars, and tutorials — remain the property of the college or the relevant third party, and may not be used for any purpose unrelated to the programme without written permission.
This archive therefore redistributes no college-provided materials whatsoever from Oxford. What you will find: the results my own models produced in the six course projects, and a course README describing the experience.
Other institutions (Tsinghua YMSC and beyond)
Courses taken elsewhere follow the same default as SUSTech: my own work is shared freely; provider materials are shared in good faith for personal study under the takedown promise, unless that institution's policy demands stricter handling — in which case stricter handling wins.
Academic integrity — for visitors
- Do not copy or submit anything here as your own work. Homework write-ups, lab reports, and projects are references and learning aids, nothing more. Your institution's academic integrity policy applies to you, and violations are solely your responsibility.
- Use notes for building understanding, and revision materials for revision. If a document could serve as a solution to an assignment you are currently taking, close the tab and make your own attempt first.
- A folder named Cheating Paper (in one SUSTech statistics course) is a self-made reference sheet explicitly permitted by the instructor during the exam — "cheat sheet" in the casual sense. It is not associated with any dishonest conduct.
Copyright & license
Unless otherwise specified, all original content in this archive — my notes, summaries, write-ups, and code — is licensed under CC BY-NC-SA 4.0: share and adapt freely for non-commercial purposes, with attribution, under the same license.
Lecturer-produced materials remain the intellectual property of their respective lecturers and are not covered by this license. Commercial redistribution of anything in this archive is strictly prohibited.
Takedown & reporting
If you are a lecturer or rights holder and would like your material removed, I sincerely apologize — please email me directly at kaichen.dev.37@gmail.com, or open a takedown request with the dedicated issue template. Requests are honored promptly, and per the promise above, prior downloads of removed material become unauthorized.
If you spot sensitive content — accidentally published solutions, copyrighted files, or personal information — please report it privately via GitHub private reporting rather than a public issue, so it can be removed before drawing attention.
Disclaimer
This is a personal project, not affiliated with or endorsed by SUSTech, UC Berkeley, the University of Oxford, or any other institution. No guarantees are made regarding the accuracy, completeness, or fitness for any purpose of the materials herein.