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Deep Learning Book: What's the meaning of Pa in this section?

I'm reading Deep Learning Book and puzzled by this "undefined identifier" (the Pa in the image, line 4). It appears at Page 208. Can you tell me just what Pa() means? Just a tip so that I can refer to Google. Thanks a lot!

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recolic Avatar asked Oct 17 '22 09:10

recolic


1 Answers

It means "Parents". The feed forward computation needs the values of the previous nodes to proceed.

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Ufuk Can Bicici Avatar answered Nov 24 '22 14:11

Ufuk Can Bicici