Arthur realized he couldn't just let the formulas sit there. He needed to capture the updated values.
You have successfully built, trained, and validated a neural network using nothing but MS Excel formulas. You visually tracked the loss curve, manually implemented forward propagation, derived the gradients in back propagation, and updated weights using gradient descent. build neural network with ms excel full
In Excel, use the SUMPRODUCT function to multiply input cells by weight cells. :Pass through the Sigmoid function: =1/(1+EXP(-z_cell)) . 3. Error Calculation Arthur realized he couldn't just let the formulas sit there
