Unverified50% confidenceFactExact time
OCR commonly uses character error rate (CER) and word error rate (WER) as evaluation metrics; document AI focuses more on field-level accuracy and the TEDS score for table reconstruction.
1
Sources
50%
Confidence
Long-term
Relevance
10/25/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedCharacter Error Rate (CER) is defined as the edit distance (insertions + deletions + substitutions) divided by the total number of characters in the reference text; Word Error Rate (WER) is analogous but operates on words.74% similarVerifiedWord Error Rate (WER) is calculated by dividing the sum of substitution, deletion, and insertion errors between the recognition output and the reference text by the total number of words in the reference text.72% similar
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