Table 3 Negative sentiment probability of post-travel perceived risks.

Risk	Sentiment analysis method
Risk	Senta_LSTM	Senta_BILSTM	Senta_CNN	Senta_GRU	Senta_BOW
Route Selection Risk	0.29	0.33	0.32	0.32	0.32
Traffic Risk	0.3	0.34	0.32	0.32	0.3
Expense Risk	0.35	0.31	0.37	0.37	0.34
Equipment Risk	0.29	0.31	0.31	0.31	0.27
Season Risk	0.2	0.23	0.23	0.23	0.2
Entry Procedure Risk	0.34	0.43	0.39	0.39	0.35
Time Risk	0.34	0.39	0.38	0.38	0.36
Climate Risk	0.28	0.3	0.31	0.31	0.27
Health Risk	0.39	0.44	0.45	0.45	0.41
Accommodation Risk	0.33	0.37	0.36	0.36	0.34
Security Risk	0.48	0.53	0.54	0.54	0.48
Ticket Risk	0.31	0.32	0.31	0.31	0.32
Infrastructure Risk	0.39	0.44	0.44	0.44	0.41
Travel Agency Selection Risk	0.23	0.27	0.24	0.24	0.22
Openness Risk	0.25	0.28	0.28	0.28	0.26
Dining & Shopping Risk	0.27	0.3	0.29	0.29	0.27
Traditional Custom Risk	0.19	0.22	0.22	0.22	0.18
Epidemic Risk	0.4	0.44	0.44	0.44	0.38
Communication Risk	0.4	0.46	0.46	0.46	0.43

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