AI & Machine Learning 1d ago · 11 min read

The RAG Pattern That Stops LLMs From Inventing Fields That Don't Exist

Standard RAG retrieves documents and lets the LLM generate field names freely — which means it will invent fields your schema never had. AK-RAG (Attribute Knowledge RAG) indexes your governed attribute catalog instead, and the LLM can only emit attribute_ids that actually exist. Here's the architecture and why it matters for regulated-industry AI.

AI & Machine Learning 2w ago · 11 min read

FDA Has No Framework for Agentic Clinical AI. ARPA-H Is About to Create One.

ARPA-H is selecting teams this month to build the first FDA-authorized agentic clinical AI — a system that writes prescriptions, adjusts medications, and acts as a 24/7 cardiovascular care member. FDA has no published guidance for agentic AI validation, no clearance precedent, and no framework that covers autonomous clinical agents.

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