LESSON 3.3
Evaluating retrieval
Learn key techniques and workflows in Retrieval-Augmented Generation from Scratch.
12m
advanced
5,356 students
Overview
Before blaming the model for a bad answer, check whether the right passage was ever retrieved. Recall at k tells you which half of the system to fix.
In this lesson you will:
- Build a query set with known correct passages
- Measure recall and precision at k
- Separate retrieval failures from generation failures
Pro Tip
Use caching and revalidation wisely to ensure your app stays fast and data remains fresh without unnecessary requests.