// 2 challenges · RAG Pipelines · hard
RAG Pipelines
hardExtract structured data from multimodal documents
Build a document extraction pipeline that converts OCR blocks and document metadata into structured fields with evidence.
~8–16 h·Any language
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hardProduction RAG with hybrid search and re-ranking
Build a production-grade RAG system combining BM25 and vector search with a re-ranking step, evaluated against a technical support dataset.