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Chinedu Obi

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AI developer at a Nsukka-based research lab, building document understanding pipelines for government archives. Designed the OCR post-correction step using LLMs that raised accuracy on handwritten colonial-era documents to 89%.

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Articles by Chinedu Obi(1)

How to build a citation-grounded answer engine

Citation-grounded answer engines combine retrieval-augmented generation with precise source attribution so every claim in an LLM response links back to a specific passage in your document corpus — this guide builds one end to end with TypeScript and Postgres.

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16 July 2026

Chinedu Obi — ANN Tech — ANN Tech