April 27, 2026
I Built a Document AI System in 2018. Here's What I Got Right and What I Missed
A 2026 retrospective on document AI from before RAG had a name, and on how much of the system around the model shifted once foundation models arrived.
Tag
NLP
2 posts · all writing
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February 15, 2019
Optey Learning Tool
NLP-powered adaptive learning system built in 2019, predating mainstream RAG by four years.