WERd: Using Social Text Spelling Variantsfor Evaluating Dialectal Speech Recognition
Table 4: WERd using pairs of spelling variants extracted using different maximum edit distances (ED).
['[EMPTY]', '[BOLD] No Variants', '[BOLD] ED ≤ 0.1', '[BOLD] ED ≤ 0.2', '[BOLD] ED ≤ 0.3', '[BOLD] ED ≤ 0.4', '[BOLD] ED ≤ 0.5', '[BOLD] ED ≤ 0.6']
WERd for different thresholds. 0.1–0.6. As the threshold increases, WERd decreases, e.g., for ref1, it goes from 37.4 to 34.3, or 8% relative reduction. The difference is due to the number of matched spelling variant pairs, e.g., 865 for ref1.