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Last updated: August 23, 2026, 8:51 AM ET

AI & ML Research

LangGraph agents frequently stall at the demo stage, but a new guide details migrating one to a production-grade backend for real booking data, covering persistence, state management, and API integration. Meanwhile, a multi-document RAG technique treats a folder of unrelated PDFs as a single nested outline, using one summary line per file to enable two-level retrieval without shared fields or a traditional index.

On the fine-tuning front, a team explains why they applied LoRA to SigLip for real-estate image classification, solving an under-labeling problem that pre-trained weights missed. The post outlines three decisive questions for when fine-tuning beats off-the-shelf embeddings, cautioning that it’s not always the right call.