Unique rows are not an unseen-subject test: audit the splitting unit
Your training and test tables can have no repeated record IDs while containing exactly the same people. If your research question concerns predictions for unseen subjects, a row-level deduplication check does not establish the boundary you need. Here is a complete, deliberately small example. It us…
Read the full story at DEV Community — Machine Learning ↗
Timeline · 1 report
- 2026-11-03 13:02 · DEV Community — Machine Learning
Unique rows are not an unseen-subject test: audit the splitting unit