15. Solution: Parameter Sharing

Solution

There are 3860 total parameters. That's 196 times fewer parameters! Here's how the answer is calculated:

(8 * 8 * 3 + 1) * 20 = 3840 + 20 = 3860

That's 3840 weights and 20 biases. This should look similar to the answer from the previous quiz. The difference being it's just 20 instead of (14 * 14 * 20). Remember, with weight sharing we use the same filter for an entire depth slice. Because of this we can get rid of 14 * 14 and be left with only 20.