Neuron Activation Frequency

Problem

Compute how often a neuron fires: the fraction of activations strictly greater than 0.

The signature is neuron_activation_frequency(activations).

Hint

Activation frequency is a cheap proxy for how much a neuron contributes.

case 1

in: [[1,0,-1,2]]

expected: 0.5

case 2

in: [[0,0]]

expected: 0

case 3

in: [[1,1,1]]

expected: 1

case 4

in: [[-1,-2,3,0,4]]

expected: 0.4

Starter codePython

def neuron_activation_frequency(activations):
    # Your code here
    pass

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