Explicit Representation of the Translation Space:Automatic Paraphrasing for Machine Translation Evaluation
Table 4: Diversity scores of paraphrased references averaged over all into-English WMT19 test sets, where n is the number of paraphrases generated. The final row indicates diversity among MT outputs. *Human results are just for the 500-sentence subset.
['[ITALIC] n', 'Method', 'DS [ITALIC] BOW', 'DS [ITALIC] tree']
The results (Tab. ’s method succeeds in encoding relevant information, supported by the fact that random codes (encoding no information), leads to mostly identical paraphrases, differing only in the sentence code selected (removed in post-processing), resulting in almost zero diversity.