Kicking off tonight’s PyData London with @johnsandall.bsky.social telling us about Death by RMSE: Cautionary Tales of Metrics Gone Wild Choosing the wrong eval metrics can look great but give terrible real world performance—it’s always a trade off!

The model is trained, eval metrics are great, nothing changes — the KPIs are static, business impact isn’t there, did you optimise for the wrong thing? I'm speaking at @pydatalondon.bsky.social meetup tomorrow on "Death by RMSE: Cautionary Tales of Metrics Gone Wild" www.meetup.com/pydata-londo...