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Fig. 11

image

Blue and red histograms representingthe distribution of the absolute error for the estimation of photometric redshifts by using a KNN and a CNN classifiers respectively. The number of catastrophic redshifts is reduced with the CNN as the percentage of redshift estimation with an absolute error higher than 0.1 is about 45.78% for the KNN and 38.03% for the CNN.

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