The advantage of this simple model is its speed and simplicity. By using only linear transformations, it was easy to translate the model into C with simple matrix multiplication operations. The 8-bin model had 180,450 parameters, and the 4-bin model had 50,250 parameters. More complex linear models with more depth and larger hidden layers were tested, but these did not significantly improve accuracy. Other activation functions besides ReLU were also tested, but ReLU was slightly more accurate and faster.