D-PAGE: Diverse Paraphrase Generation
Table 3: Distinct-1, distinct-2 and JD of baselines and D-PAGE-K, on PPDB and Paralex.
['Model', 'distinct-1', 'PPDB distinct-2', 'JD', 'distinct-1', 'Paralex distinct-2', 'JD']
Distinct-N is a measure of distinct ngrams in generated sequences. Beam-K achieves the highest distinct, because it deliberately avoids repeating sentences while decoding. However, sequences between different ranks do not tend to capture different rewriting patterns, because their word distributions are similar, as evident by JD scores.