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Old 10-28-2013, 08:02 PM
Sweater Monkey Sweater Monkey is offline
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Join Date: Sep 2013
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Default Input normalization

I could use some clarification on the 9th homework assignment.

In normalizing the features I would assume that it is with respect to the bounds on the feature's possible values rather than on the data itself?

For example, the minimum pixel intensity is for the digit data is -1 and the maximum is +1 therefore, using average pixel intensity as a feature, the min and max average pixel intensities that are possible are -1 and +1 (if all pixels were white or all pixels were black for a given data point). So in this case I am under the assumption that the feature doesn't need any shift or scale normalization since the min and max values are already within the [-1,1] bound regardless of the data. Is this correct?
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