)](https://ki-seki.github.io/posts/260531-lilian-rl-overview/RL_illustration_new.png)
Fully Annotated Guide to "A (Long) Peek into Reinforcement Learning"
This is a fully annotated guide to Lilian Weng’s post A (Long) Peek into Reinforcement Learning.
Lilian-Weng
)](https://ki-seki.github.io/posts/260430-multi-armed-bandit/multi-armed-bandit.png)
Fully Annotated Guide to "The Multi-Armed Bandit Problem and Its Solutions"
The multi-armed bandit problem is a classic exploration–exploitation dilemma in reinforcement learning. Lilian Weng’s post is an excellent introduction, but some mathematical details and motivations can be cryptic. This article annotates it with step-by-step explanations and supplementary notes.
](https://ki-seki.github.io/posts/250902-diffusion-annotated/Diffusion_Diagram.png)
Fully Annotated Guide to "What are Diffusion Models?"
Diffusion models are the de facto standard for image generation. Lilian Weng’s “What Are Diffusion Models?” is an excellent introduction to it, but readers without a solid mathematical background may struggle. This article fills that gap with clear, step‑by‑step derivations and explanations.