Maths for ML / Notation

θ\theta

theta (parameters)

Greek letters and conventionsBeginner

Say it “theta”

Shorthand for 'all the model's learnable parameters' bundled together.

Example

fθ(x)f_{\theta}(\mathbf{x})

The model f with parameters θ.

In code

model.parameters()
model.parameters()

Where you’ll see it in ML

You'll see L(θ), ∇_θ, p_θ in nearly every paper.

Don’t confuse it with

Lessons that use it

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