YangHao's personal blog about notes, writing, and projects.https://kk2222.ink/https://kk2222.ink/notes/nlp/attention-shape-checklist/https://kk2222.ink/notes/nlp/attention-shape-checklist/A note for keeping tensor shapes straight when implementing self-attention from scratch.Fri, 27 Mar 2026 00:00:00 GMThttps://kk2222.ink/notes/machine-learning/gradient-descent-intuition/https://kk2222.ink/notes/machine-learning/gradient-descent-intuition/A compact note on why gradient descent works, what the update rule means, and what to watch for in practice.Fri, 27 Mar 2026 00:00:00 GMThttps://kk2222.ink/essays/the-value-of-structured-notes/https://kk2222.ink/essays/the-value-of-structured-notes/A short reflection on why I want my notes to behave more like a handbook than a feed.Fri, 27 Mar 2026 00:00:00 GMThttps://kk2222.ink/essays/studying-slower/https://kk2222.ink/essays/studying-slower/A note to myself on slowing down enough to understand what I am actually reading.Thu, 26 Mar 2026 00:00:00 GMT