AI & ML Research 24 Hours

Last updated: August 22, 2026, 8:55 PM ET

AI Agent Backends

LangGraph agents finally get a production-grade backend — persistence, retries, and stateful workflows keep real booking data safe across crashes and restarts. The walkthrough moves a throwaway demo into an agent that actually survives real traffic.

Multi-Document RAG

Multi-document RAG fails when PDFs share no common fields, so the fix is to treat a folder as one long document with a nested outline: one summary line per file plus each file's own table of contents routes retrieval down two levels, sidestepping the shared-index bottleneck.

Fine-Tuning Decisions

LoRA fine-tuning of Sig LIP solved an under-labeling problem for real-estate image classification, but the authors caution it isn't always the right call — three questions determine whether fine-tuning beats a frozen encoder on your dataset.