#retrieval
3 posts
What is reranking, and why it's the difference between finding documents and finding answers
First-stage retrieval finds 100 matches. Reranking identifies the 5 that actually answer your question. Here's why that distinction matters for legal AI.
How hybrid search works, and why your legal AI tool probably uses only half the equation
Keyword search finds exact article numbers. Semantic search finds related concepts. Hybrid search does both, and the difference is measurable.
What is chunking, and why it's the invisible foundation of legal AI quality
Before your legal AI tool can answer a question, it has to cut the law into pieces. The way it cuts determines whether the answer includes the exception that changes everything, or misses it entirely.