TABLE 3. Accuracy, Sensitivity, F-Measure, and G-Mean Results for Topic Identification by NLP in the Training/Testing Phase.

Class	Accuracy	Sensitivity	F-measure	G-mean
family	0.90/0.89	0.92/0.92	0.90/0.90	0.90/0.90
love	0.89/0.88	0.91/0.90	0.89/0.88	0.89/0.88
religion	0.92/0.91	0.91/0.90	0.91/0.90	0.91/0.90
study	0.91/0.90	0.91/0.90	0.91/0.90	0.91/0.90
work	0.89/0.88	0.90/0.89	0.89/0.88	0.89/0.88
friendship	0.89/0.87	0.90/0.87	0.89/0.87	0.88/0.87
politics	0.91/0.90	0.91/0.90	0.91/0.90	0.90/0.89
nature	0.88/0.87	0.89/0.88	0.88/0.87	0.89/0.88
entertainment	0.87/0.85	0.89/0.88	0.87/0.86	0.89/0.88
health	0.93/0.92	0.92/0.91	0.92/0.91	0.90/0.89