The Flores Evaluation Datasets for Low-Resource Machine Translation: Nepali–English and Sinhala–English
Table 4: Weakly supervised experiments: Adding noisy parallel data from filtered Paracrawl improves translation quality in some conditions. “Parallel” refers to the data described in Table 2.
['[BOLD] Corpora', '[BOLD] BLEU ne–en', '[BOLD] BLEU si–en']
Without any filtering or with random filtering, BLEU score is close to 0 BLEU. Adding Paracrawl Clean to the initial parallel data improves performance by +2.0 and +3.7 BLEU points, for Nepali–English and Sinhala–English, respectively.