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Document processing

Make documents useful beyond extraction. Explore classification, OCR quality, validation, tables, and traceable data.

11 articles

Document processing
Normalizing extracted dates, currencies, and identifiers
Keep original values and resolve ambiguity before converting document dates, monetary amounts and identifiers into typed data.
Sarath Chandran
Sarath Chandran
August 28, 20265 min read
Document processing
Multilingual OCR: what to test beyond language support
Build a multilingual document evaluation that distinguishes recognition, reading order, field interpretation and translation.
Sarath Chandran
Sarath Chandran
August 18, 20266 min read
Document processing
One PDF, several documents: testing document splitting
Test page boundaries, repeated document types and missing pages before extracting records from a combined PDF packet.
Sarath Chandran
Sarath Chandran
August 4, 20268 min read
Document processing
Keeping extracted fields traceable to their source documents
Preserve source identity, page references, original text and transformations when turning documents into structured records.
Sarath Chandran
Sarath Chandran
July 24, 20266 min read
Document processing
Improving OCR accuracy: reprocess, rescan, or review?
Use a practical scan-quality triage method to decide when to reprocess an image, request a better source, or review it manually.
Sarath Chandran
Sarath Chandran
July 14, 20265 min read
Document processing
Testing document extraction on unfamiliar layouts
Design a held-out layout test with consistent annotations, field-level scoring and a reproducible record of errors.
Sarath Chandran
Sarath Chandran
July 3, 20269 min read
Document processing
Document classification: handling unknown document types
Decide when document classification should select a known type, return an unknown result, or send an ambiguous record for review.
Sarath Chandran
Sarath Chandran
June 24, 20265 min read
Document processing
Validating extracted data against business rules
Separate extraction errors from inconsistent source documents using explicit field, arithmetic and cross-record validation rules.
Sarath Chandran
Sarath Chandran
June 12, 20269 min read
Document processing
Why table extraction fails even when the text is correct
Evaluate headers, merged cells, units and page continuations so extracted table values retain their original relationships.
Sarath Chandran
Sarath Chandran
June 2, 20266 min read
Document processing
How to choose confidence thresholds for document extraction
Choose extraction review thresholds using labeled examples, field importance and the cost of errors instead of a universal confidence cutoff.
Sarath Chandran
Sarath Chandran
May 22, 20266 min read
Document processing
AI document processing: a practical evaluation guide
Plan an AI document processing workflow with clear output requirements, representative test documents, source evidence, review rules and delivery checks.
Sarath Chandran
Sarath Chandran
May 12, 202610 min read

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