Negative Training for Neural Dialogue Response Generation
Table 9: BLEU-4 results for negative training.
['Ubuntu', '[BOLD] PPL', '[BOLD] BLEU-4', '[BOLD] M-ratio']
It is shown that the BLEU-4 performance does not become worse (or even improves) after negative training. This result, to some extent, verifies our claim that the quality of model samples is not compromised.