Latest Issues
Gemma 4 Seminar Recording
Thank you again to everyone who joined the Frontier AI Seminar on Gemma 4. It genuinely means a lot to see so many people willing to spend their morning, afternoon, evening, working through tensors, attention masks, KV cache, MoE routing, a...
Activation chapter, complete: 12 interactive lessons
Growing up in Taiwan, nothing can activate my neurons as much as a cup of boba tea.
Growing up in Taiwan, nothing can activate my neurons as much as a cup of boba tea. Artificial neurons need activating too. Modern deep learning offers a l...
SwiGLU
Activation › SwiGLU
Try the interactive version ↗
SwiGLU is GLU with the sigmoid gate replaced by a SiLU gate. The two-branch shape is identical; the only change is that the gate is no longer capped at 1 — it can push past full rated ca...
GLU
Activation › GLU
Try the interactive version ↗
GLU is the first activation in this chapter where the network decides about a value rather than only shaping it. The same input is run through two learned linear transforms (one produces a...
Softplus
Activation › Softplus
Try the interactive version ↗
Softplus is the simplest case of log-sum-exp: a single input weighed against a fixed baseline of zero. It's two-input LSE with the second input pinned to e⁰ = 1. Outside hidden layers,...
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Associate Professor of Computer Science
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