nvoinxv/multi-head-latten-attention-mla-

This repository is an educational Jupyter Notebook project that implements two advanced concepts from modern language model research: Multi-Head Latent Attention and Mixture-of-Experts. Both techniques come from the DeepSeek-V2 model architecture. The entire implementation, from loading data to training and generating text, lives inside a single notebook file. The core idea behind Multi-Head Latent Attention is memory efficiency. Standard attention mechanisms in large language models require storing a large amount of intermediate data for every piece of text the model processes. This data grows quickly and becomes a bottleneck during inference. The approach here compresses that data into a smaller, low-dimensional vector before storing it, which reduces memory usage without losing the model's capacity to understand context. It also handles positional information separately to keep this compression efficient. The project also includes a Mixture-of-Experts feed forward network. This is a method where different parts of the network specialize in different types of processing, and a router decides which specialist to use for each input. The notebook implements this with a load balancing mechanism to ensure all specialists get used evenly. The notebook is organized into 32 cells across 8 sections, meant to be run in order from top to bottom. It covers library setup, dataset loading and tokenization, the attention mechanism, the mixture of experts, the full transformer block, training, and text generation. Running it requires a Hugging Face account, a graphics card is recommended but not required, and the dataset loading step alone takes roughly half an hour. The author notes this is not a modular package. There are no separate Python files for the model or training code. Everything exists within the notebook, making it a self-contained learning resource rather than a production library. The full README is longer than what was shown.