Lecture 7: Code an LLM Tokenizer from Scratch in Python
In this lecture, we will build a simple tokenizer from scratch in Python.
The key reference book which this video series very closely follows is Build a Large Language Model from Scratch by Manning Publications. All schematics and their descriptions are borrowed from this incredible book!
This book serves as a comprehensive guide to understanding and building large language models, covering key concepts, techniques, and implementations.
Affiliate links for purchasing the book will be added soon. Stay tuned for updates!
0:00 Lecture goals
2:48 2 steps of tokenisation
7:22 Importing the dataset
12:43 Tokenising the text
24:18 Converting tokens into token IDs
31:33 Simple Tokenizer class in Python
43:33 Special Context Tokens
58:33 Additional context tokens
1:02:37 Lecture recap
Entire Code file link: https://drive.google.com/file/d/1_lgi...
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