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E0, E1,....Ep Error
Output
Input
Z0, Z1,... Zp
Parameters W
COST FUNCTION
Desired Output
D0, D1,...Dp
M(Z,W)
LEARNING MACHINE
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the ratio between the 1st and the 11th eigenvalues is 8
−6
0 100 200 300 400 500 600 700 800
Eigenvalue order
Log10 Eigenvalue
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Learning rates:
η0 = 0.12 η1 = 0.03 η2 = 0.02
Hessian largest eigenvalue:
λ = 0.84
max
Weight space
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
−1 −0.8 −0.6 −0.4 −0.2 0 0.2 0.4 0.6 0.8 1
Maximum admissible Learning
rate (batch): −5
η
= 2.38
Log MSE (dB) 0
−10
−15
−20
0 1 2 3 4 5 6 7 8 9 10
epochs
max
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2.5
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LEARNING RATE
PREDICTED OPTIMAL LEARNING RATE
1 epoch
2 epochs 3 epochs 4 epochs 5 epochs
MEAN SQUARED ERROR
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