about mae and rmse

[hasaki1999]

hello， I would like to ask that when calculating the rating indicators, y true and y preddid pred add 1 and divide by 2,thank you.

[jiangyuan-li]

The response is in the range [0,1]. It was recast into [-1,1] in preprocessing for computational purposes with other weighting ideas incorporated in training. When reporting the test error, we transform it back and report it in the original scale. The calculation you mentioned is just the reverse of preprocessing transformation.