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Zero mean normalization / unit norm normalization |
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Zero-mean normalization When zero-mean normalization is applied, all the data in each profile are slid vertically so that their average is zero:
The blue profile was obtained from the red one by a vertical translation
so that the average of the profile be zero. |
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Unit-norm normalization When unit-norm normalization is applied, all the data in each profile are multiplied so that the length of the associated vector be equal to 1. The length of the vector is the square root of the sum of squares of all values.
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