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470512 (3) [Avatar] Offline
Page 182 MEAP 11.
I think that the fifth line (definition of sigmoid) should be indented.

Furthermore, I do not understand this line:
layer_2 = sigmoid(,weights_1_2)) # linear + softmax

Why are we applying the sigmoid function to obtain the softmax? The same is repeated in test data block.

575487 (1) [Avatar] Offline
Yes, I noticed this bug as well. It should be softmax in the second ;line for both training and testing.

Furthermore, the description on page 181-182 (Intro to Embedding Layer) discusses One-Hot Encoding of words and how to sum the vectors to avoid matrix vector multiplication. But the code uses Word indexes instead of one hot encoding. Also, the concept of Embeddings is quite confusing especially what is the significance of their hidden size (100 in the example code).