What values should I put in my targets whenever they're "don't care" values?
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Good day!
I have to train a feedforward net: 6-5-6 I-H-O topology, tansig and logsig activation functions, binary values as targets.
When the value of the SIXTH target is 1, the first five values matter.
However, when the value of the SIXTH target is 0, the first five values are "DON'T CARE" values, or insignificant.
Example: 101111, 100001, 001101, 00000 0, 11111 0, 01110 0
What values should I put in these "don't care" values? Nan? 0's? 1's? Or it wouldn't matter any way? I want to remove the effect of these values in the weight adjustments during training and I'm not sure how to do that in Matlab.
How does the network process inputs with Nan values (I disabled the 'fixunknowns' proccessParam) ?
Thank you!
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Greg Heath
2012-10-31
Make no changes to the net.
Just check outputs for round(y(6,j)) == 0 and act accordingly.
Hope this helps.
Thank you for formally accepting my answer.
Greg
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