DailyDialog: A Manually Labelled Multi-turn Dialogue Dataset
Table 5: BLEU scores of retrieval-based approaches.
['[EMPTY]', 'BLEU-2', 'BLEU-3', 'BLEU-4']
Because the groundtruth responses in the test set are not seen in the training set, we can not evaluate the performance using ranking-like metrics such as Recall-k.