Zhejian Peng
Blogs
Research notes on recommendation, ranking, and machine learning. Builds live under Projects.
Pre-Norm vs. Post-Norm: The Identity Path That Stabilizes LLMs
Why normalization placement changes gradient flow — with a runnable JAX stress test
Kimi K3: An In-Depth Look at KDA
Kimi Delta Attention across the sequence, Attention Residuals across depth
WIP-Rec System
An syllabus
Stanford - CS224U, Natural Language Understanding
Spring 2020
Stanford - CS224n, NLP with Deep learning
Winter 2019
Python for Absolute Newbies
Python installation, pip, and some basic functionality
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