Articles Cards Topics About

Tag

rag

5 cards

Cards

Recall@k measuring whether the right passage reached the context and faithfulness measuring whether the answer was supported by it, and a chunking change that improved one number while breaking the other

AI SystemsDay 61Oct 2, 2026

We Can't Improve What We Only Eyeball

system-design ai-systems rag

Vector search ranking millions of separately embedded documents by distance in milliseconds, then a cross-encoder reranker reading the query and fifty candidates together and reordering the top five

AI SystemsDay 60Oct 1, 2026

The Top Five Aren't The Best Five

system-design ai-systems rag

A policy clause cut in half at 500 characters so neither piece retrieves, beside fixed-size, recursive, semantic and parent-document chunking, and the token ranges different content types actually want

AI SystemsDay 59Sep 30, 2026

Where We Cut Decides What We Find

system-design ai-systems rag

The Search That Can't Spell — system design card, day 27, AI systems: BM25 keyword results and vector results merged by reciprocal rank fusion so an exact citation surfaces above essays about the concept

AI SystemsDay 27Aug 27, 2026

The Search That Can't Spell

ai-systems system-design rag

Your RAG Isn't Hallucinating — system design card, day 7, ai systems

AI SystemsDay 7Aug 7, 2026

Your RAG Isn't Hallucinating

ai ai-systems rag

Stay in the loop

New articles on technology, finance, culture, and life. No spam, unsubscribe anytime.

Narchol

A word that carries meaning, weight, and intent.

About Disclaimer RSS

© 2026 Narchol. All rights reserved.