SNR Weighting

Problem

Compute the signal-to-noise ratio implied by a cumulative alpha bar: SNR = alpha_bar / (1 - alpha_bar).

The signature is snr_weighting(alpha_bar_t).

Hint

SNR decreases monotonically as the diffusion timestep grows.

case 1

in: [0.5]

expected: 1

case 2

in: [0.9]

expected: 9

case 3

in: [0.25]

expected: 0.3333333333

case 4

in: [0]

expected: 0

Starter codePython

def snr_weighting(alpha_bar_t):
    # Your code here
    pass

4 test cases · run your code against them in the editor