01_week4_quiz
Key concepts on Deep Neural Networks
2。第 2 个问题
Among the following, which ones are "hyperparameters"? (Check all that apply.)
learning rate α
number of iterations
size of the hidden layers n[l]
bias vectors b[l]
number of layers L
weight matrices W[l]
activation values a[l]
answer:(A,B,C,E) (超参是指影响参数w,b之类的其他参数,易误选F)
4。第 4 个问题
Vectorization allows you to compute forward propagation in an L-layer neural network without an explicit for-loop (or any other explicit iterative loop) over the layers l=1, 2, …,L. True/False?
True
False
answer(B) reason:在更深层的神经网络学习中，依旧难以避免
