The first major frontier for BLEU in document processing is evaluating the fidelity of . When you extract text from a PDF, you are essentially "translating" a visual representation of text into a raw string. The extraction process can introduce errors, particularly with complex layouts, non-standard fonts, or multi-column articles. BLEU provides a quantitative, objective, and reproducible method for comparing the extracted text against a verified ground truth.
Run the extracted text through translation models (e.g., Google Translate, DeepL). bleu+pdf+work