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Table 1.

Test set ℒ1 for a LightGBM model that uses only the features which are checked.

CNN 1-3 CNN 4 Luminosity Distance Test ℒ1
2.29
2.37
2.41
2.32
2.67
3.38

Notes. CNN 1-3 refers to the first three CNNs (from the left) in Fig 3, all of which are only trained on the Galaxy Zoo probabilities. CNN 4 is the ResNet50 which was retrained on M/L. When leaving out the distance feature (redshift and pixelsize), we also replace all luminosity features by the corresponding flux features. The baseline ℒ1 (i.e. minimizing ℒ1 when predicting a single value) is 6.52.

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