Table 2.

Visualization conditions of co-occurrence networks.

	Conditions
Jaccard index	≥0.1
Number of appearance terms	From 100-150 words
Part of speech	Noun, verb, adjective, adverb, personal name, geographical, unknown part of speech (words not included in the morphological analysis dictionary)
Drawing conditions of network diagram	Strong co-occurrence relationships are thicker lines
	A word with a larger number of occurrences has a larger circle
	Arrangement that labels do not overlap
	Detect subgraph