Xavier Init Std

Problem

Return the Xavier/Glorot normal initialization standard deviation sqrt(2 / (fan_in + fan_out)).

The signature is xavier_std(fan_in, fan_out).

Hint

Average the fan-in and fan-out inside the denominator.

case 1

in: [100,100]

expected: 0.1

case 2

in: [1,1]

expected: 1

case 3

in: [3,12]

expected: 0.3651483717

case 4

in: [256,512]

expected: 0.0510310363

Starter codePython

import math
def xavier_std(fan_in, fan_out):
    # Your code here
    pass

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