Consider the following neural network. Single-circled nodes denote variables (e.g. x₁ is an input variable, hy is an intermediate variable, ŷ is an output variable), and double-circled nodes denote functions (e.g. Σ takes the sum of its inputs, and a denotes the logistic function o(x) = 1+-. In the network below, h₁ = 1+e-ª1w1-x2 w₂

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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Chapter1: Computer Networks And The Internet
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2: Back propagation:
Consider the following neural network. Single-circled nodes denote variables (e.g. æ1 is an input
variable, hy is an intermediate variable, y is an output variable), and double-circled nodes denote
functions (e.g. Σ takes the sum of its inputs, and ♂ denotes the logistic function σ(x) = 1+e-x.
In the network below, hi = l+e-T1w1T2W2 ·
1
1
W1 = -1.7
Cloon
Σ
W2 = 0.1
1
h
- 0.6
oblood
Σ
S2
W4 = - 1.8
W5 =
ww
0.2
= 0.5
3
Transcribed Image Text:2: Back propagation: Consider the following neural network. Single-circled nodes denote variables (e.g. æ1 is an input variable, hy is an intermediate variable, y is an output variable), and double-circled nodes denote functions (e.g. Σ takes the sum of its inputs, and ♂ denotes the logistic function σ(x) = 1+e-x. In the network below, hi = l+e-T1w1T2W2 · 1 1 W1 = -1.7 Cloon Σ W2 = 0.1 1 h - 0.6 oblood Σ S2 W4 = - 1.8 W5 = ww 0.2 = 0.5 3
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