Noisy Text in RAG: Typos, OCR, and the Gap Classical Spell-Check Leaves
SMRTR summary
Classical spell-checkers fix simple typos but fail when errors involve valid-word substitutions, scrambled word boundaries, or OCR character misreads. Embeddings handle these cases naturally by matching meaning over context, but keyword-based search still breaks on typos, so enterprise RAG pipelines need both approaches working together.
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