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CS 5236: Advanced Generative AI and Agents

Programming Assignment 1: The Modern Transformer LM

This dataset accompanies Programming Assignment 1 for CS 5236: Advanced Generative AI and Agents. It gives every student the same ready-to-use text corpus and tokenizer for implementing and training a modern Transformer language model from scratch.

Source and credits

The text comes from roneneldan/TinyStories, introduced by Ronen Eldan and Yuanzhi Li in TinyStories: How Small Can Language Models Be and Still Speak Coherent English?.

Tokenization uses the 8,192-token byte-level BPE tokenizer published with commonsense-ai/tinystories-15m. We gratefully acknowledge the authors and maintainers of both resources.

What this repository contains

Each .bin file is a flat stream of token IDs. Every story is followed by one <|endoftext|> token. The streams do not contain padding or pre-built training windows, so your batch sampler can choose its own context length.

File Purpose Documents Tokens
data/train.bin Complete training split 2,119,719 466,876,982
data/validation.bin Complete validation split 21,990 4,692,376
debug/train.bin Small development stream 926 200,116
debug/validation.bin Small development stream 231 50,208
tokenizer/tokenizer.json Fixed course tokenizer -- --

The supplied tokenizer/tokenizer.json is used to encode generation prompts and decode model outputs. The Transformer embeddings and language-model head are still randomly initialized and trained by you.

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Paper for alooboii/pa1-tinystories