Table 6.

Cluster evaluation on CCTC dataset.

Methods	ACC	NMI	ARI
CCTC dataset
TFIDF+k-means	0.127	0.432	0.230
Word2Vec+k-means	0.242	0.283	0.181
ELMO+k-means	0.196	0.365	0.258
DEC	0.275	0.167	0.071
TFIDF+DEC	0.501	0.389	0.271
Word2Vec+DEC	0.465	0.353	0.244
BERT+DEC	0.526	0.486	0.439
TCBPMA	0.518	0.426	0.374

The bold value indicates that the Acc value is the highest.