Equal CER, Unequal Damage: Severity-Weighted Character Error Rate for OCR
14 Oct 2026
Character Error Rate (CER), the standard metric for OCR and vision-language models (VLMs), charges a typo as much as a wrong name. We introduce semCER, which keeps CER's alignment and denominator and charges each grapheme edit a severity from an LLM judge, with no word…
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