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Notes

Taking notes helps me internalize difficult concepts and techniques with my own understanding. My notes are also like an intellectual diary that witnesses my growth over the years.

Large Language Models & AI Agents 

Transformers and Large Language Models - Stanford Course Notes

Attention mechanisms - Literature Survey (updated)

 

Architectural innovations - Literature Survey (updated)

LLM post-training - Literature Survey (updated)

Optimization algorithms for LLM training - Literature Survey (updated)

Statistics & Machine Learning

Elements of Statistical Learning - Hastie, Tibshirani, and Friedman

High-Dimensional Probability - Vershnyn

Causal Inference - MIT Course Notes

Mathematical Statistics and Data Analysis - Rice

All of Statistics - Wasserman

Reinforcement Learning - Sutton and Barto

Deep & Cross Network (DCN)

Vignettes of Physics

 

A collection of simple, deep and elegant derivations in physics. ​

Lee-Yang Circle Theorem - Identify phase transition via Lee-Yang zeros

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©2023 by Qingyang Xu. All rights reserved.

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