What is a GLU (Gated Liner Unit) in AI

In this presentation by Gyula Rabai Jr., we dive into the concept of a Gated Linear Unit (GLU) and explore its crucial role in enhancing Large Language Models (LLMs). The GLU introduces a "gate" into the process, allowing models to combine both simple and advanced mathematical operations to make more accurate predictions and better understand complex language patterns.

Key Topics:

• What is a Gated Linear Unit (GLU)?
• How GLUs improve Large Language Models (LLMs)
• The role of advanced mathematical operations in GLUs
• Vector transformations and their impact on AI predictions
• Combining simple and complex operations in LLMs

Video overview

A GLU takes the original input vectors (which represent words) and transforms them into two sets: Gate vectors and Transformed vectors. Unlike traditional operations in AI models that rely on just addition and multiplication, the GLU allows for more advanced operations, like exponentiation or maximization. This flexibility enables LLMs to handle more complexity, making them better at predicting the next word in a sequence.

In this video, we will

• Explore the function of the Gated Linear Unit (GLU) in AI models
• Understand how GLUs introduce more advanced mathematical concepts to LLMs
• Learn how GLUs combine basic and complex operations to improve predictions
• Walk through the process of transforming and combining vectors in the GLU
• See why GLUs are essential for making accurate word predictions in LLMs

More information

• Large Language Models (LLM) - What is AI
• Large Language Models (LLM) - What are LLMs
• Large Language Models (LLM) - Tokenization in AI
• Large Language Models (LLM) - Embedding in AI
• Large Language Models (LLM) - RoPE (Positional Encoding) in AI
• Large Language Models (LLM) - Layers in AI
• Large Language Models (LLM) - Attention in AI
• Large Language Models (LLM) - GLU (Gated Liner Unit) in AI
• Large Language Models (LLMs) - Normalization (RMS or RMSNorm) in AI
• Large Language Models (LLM) - Unembedding in AI
• Large Language Models (LLM) - Temperature in AI
• Large Language Models (LLM) - Model size an Parameter size in AI
• Large Language Models (LLM) - Training in AI
• Large Language Models (LLM) - Hardware acceleration, GPUs, NPUs in AI
• Large Language Models (LLM) - Templates in AI
• Large Language Models (LLM) - Putting it all together - The Architecture of LLama3