Sigmoid
Also written: σ, logistic function
σ(z) = 1/(1 + e⁻ᶻ), which squashes any score into the range 0 to 1, so it can turn a score into a probability. Its slope is σ(1 - σ).
Also written: σ, logistic function
σ(z) = 1/(1 + e⁻ᶻ), which squashes any score into the range 0 to 1, so it can turn a score into a probability. Its slope is σ(1 - σ).