# Little Book of Generative AI Foundations offers a mathematical primer on generative models

> Original title: The Little Book of Generative AI Foundations: An Intuitive Mathematical Primer

- Source: Hacker News · AI (150+ points)
- Published: 2026-11-03T21:40:53.000Z
- Bad Influence: https://badinfluence.news/items/x61ms8wpma4ycc686v0jzh44b
- Original: https://arxiv.org/abs/2605.29713

## Summary

A revised arXiv preprint by Tianhua Chen, a 195-page book, gives a derivation-focused introduction to generative AI's mathematical foundations. It connects PCA, probabilistic PCA, variational autoencoders, diffusion models, normalising flows, GANs, Wasserstein GANs, and energy-based models, and adds visual explanations in version 2.