Overfitting the Validation Set Is Rarely a Big Issue, AIRA₂ Ablations Show
mariofilhoml · x · 2026-09-25
The author clarifies his earlier take on the AIRA₂ paper: "overfitting the validation set" means using it for model selection after hyperparameter optimization, not literally training on it. Citing the paper's ablations, he reiterates that this kind of validation-set overfitting is usually not a big issue in practice, and again recommends the "Closing the Generalization Gap" sections.
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