https://www.jamieede.com/tags/ocr/ Recent content in OCR on Jamie Ede Hugo en-us Sat, 30 May 2026 10:00:00 +0000 https://www.jamieede.com/posts/measuring-ocr-accuracy-1994-service-manual-rag/ Sat, 30 May 2026 10:00:00 +0000 https://www.jamieede.com/posts/measuring-ocr-accuracy-1994-service-manual-rag/ <p>A torque figure with a missing digit is not a typo. It is a mechanic over-tightening a brake bolt. When you turn a scanned service manual into a RAG chatbot, OCR fidelity stops being a quality nicety and becomes a safety property.</p> <p>The chatbot in question reads a 1994 Yamaha XV250 Virago service manual: 291 pages, scanned to an image-only PDF, no text layer at all. It is live here: <a href="https://virago.edestudio.us/" target="_blank" >virago.edestudio.us</a> . Ask it about valve clearances or jet sizes and it answers from the OCR&rsquo;d corpus, reading the retrieved chunk text verbatim. Whatever the OCR got wrong is what the rider is told.</p>