Table 3 The main topics of LDA model generation, their keywords and probability distribution.

From: Online comments of tourist attractions combining artificial intelligence text mining model and attention mechanism

Subject number

Topic name

Keywords and probability

1

Scenic spot environment

Nature (0.20), scenery (0.18) and freshness (0.15)

2

Quality of service

Employee (0.22), attitude (0.19) and specialty (0.17)

3

Facility equipment

Facilities (0.25), perfect (0.20) and comfortable (0.15)

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