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#training-serving-skew
1 articles
01
2026-08-27
·
Machine Learning Basics
·
★ MEMBER
·
8 min read
ML System Design — The 90% Outside the Model
The accuracy you hit in a notebook is not a promise about production. Feature definitions, training-serving skew, monitoring that catches slow decay, and the retraining loop — the 90% that lives outside the model, laid out in the order you actually design it.