Sign in

John Sandall

@johnsandall.bsky.social
20 followers 57 following 3 posts

CEO & Principal Data Scientist at coefficient.ai

PostsRepliesMedia
Reposted by John Sandall
PyData London @pydatalondon.bsky.social · 01/04/2025
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!
132
John Sandall @johnsandall.bsky.social · 31/03/2025
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...
meetup.com
PyData London - 95th Meetup, Tue, Apr 1, 2025, 7:00 PM | Meetup
## Details **Venue**: Riverbank House, 2 Swan Ln, London EC4R 3AD **Please note**: 1. 🚨🚨🚨A valid photo ID is required by building security. 🚨🚨🚨 2. This event follo
131