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Interesting I was just thinking a LLM would do a great job correcting OCR mistakes.
by fnordpiglet 4y ago
Interesting I was just thinking a LLM would do a great job correcting OCR mistakes.
- vivegi 4y agoOCR engines may use a HMM (Hidden Markov Model) for OCR correction.
- fnordpiglet 4y agoYeah, but they don’t do a semantic correction. LLM are extraordinarily more powerful than HMM.
- vivegi 4y agoDepends on context though. An LLM is useless (or not as useful) in OCR for forms where we are trying to extract the name "John Smith" from a name field whereas a HMM trained specifically on name fields may be able to do a better job. LLMs may perform better as a post processing step for running text (such as book pages).