A Bichannel Transformer with Context Encoding for Document-Driven Conversation Generation in Social Media

Table 6

Human evaluation for ablation study. All metrics are scored 0/1/2.

Models	Fluency	Dialogue coherence	Diversity
BCTCE	1.34	1.29	0.95
+copy	1.33	1.26	1.01
-document	1.30	1.27	0.80
-history	1.31	1.06	0.88
-context encoder	1.36	0.81	0.53
-utterance encoder	1.34	1.27	0.87
-bi_channel	1.29	1.26	0.85