Set 46 - Deep dive- embeddings + two-tower

Use Practice Loop if you need a reset.

Problems

Deliverables

• Write 3 concise takeaways.
• Produce 1 concrete artifact (outline, notes, or summary).
• Log time spent and one improvement for next time.

Notes

• Define two-tower retrieval and why dot product works.
• List 2 candidate-generation metrics (recall@K, hit rate).
• Note 1 ANN index tradeoff (speed vs recall).

Review

• Time spent + where you got stuck?
• Biggest mistake or missed edge case?
• One concrete improvement for next time.