Tag: evaluation

All the articles with the tag "evaluation".

• From 86% to 71%: learning to trust a brain decoder's accuracy

  14 Jun, 2026

  I trained a tiny CNN to read MEG brain signals on Colab. The interesting part wasn't the model — it was how stratified splits, checkpoint hygiene, and cross-validation deflated a flattering 86% into an honest 71% ± 5%, and revealed exactly where the model wins.