[Retracted] MKA: A Scalable Medical Knowledge-Assisted Mechanism for Generative Models on Medical Conversation Tasks

Table 3

Comparison of the models on MedDialog-CN, where the best results are in bold.

Model	Dialog-GPT	Transformer	BERT-GPT	MKA-Transformer	MKA-BERT-GPT
Perplexity	9.71	9.52	8.23	8.81	8.04
BLEU-2	5.21%	4.92%	4.88%	5.02%	5.71%
BLEU-4	1.83%	0.90%	0.97%	0.99%	1.35%
NIST-2	0.36	0.42	0.40	0.43	0.44
NIST-4	0.32	0.40	0.39	0.40	0.43
METEOR	12.32%	13.11%	12.83%	13.4%	13.94%
Entropy-4	13.73	13.51	13.8	13.72	14.1
Dist-1	0.02%	0.03%	0.03%	0.03%	0.04%
Dist-2	2.01%	2.02%	2.14%	2.11%	2.22%