How is machine learning used in document processing?
Machine learning handles the three stages rule-based OCR cannot: classifying a document type it has never seen, locating fields that move position between vendors, and flagging low-confidence extractions for human review. A production pipeline typically layers a vision model for layout, a transformer for field extraction, and a confidence threshold that routes uncertain pages to a reviewer. NextGen builds these to a measured field-level accuracy target — commonly 95%+ on structured forms and 85–92% on handwritten or scanned inputs — with the accuracy number itself reported in a monitored dashboard rather than promised in a deck.

