Table 3.

Results of feature importance analysis.

Variable	Importance (%)	Cumulative percent (%)	Model input 1	Model input 2	Model input 3	Model input 4	Model input 5
Report times	17.80	17.80	√	√	√	√	√
Hour	13.30	31.10	√	√	√	√	√
Text size of first report	3.50	34.60	╳	√	√	√	√
W1	3.00	37.60	╳	√	√	√	√
W2	2.90	40.50	╳	√	√	√	√
W3	2.40	42.90	╳	╳	√	√	√
Mouth	2.30	45.20	╳	╳	√	√	√
W4	2.10	47.30	╳	╳	√	√	√
W5	1.90	49.20	╳	╳	√	√	√
Accident type	1.80	51.00	╳	╳	√	√	√
W6	1.80	52.80	╳	╳	╳	√	√
W7	1.60	54.40	╳	╳	╳	√	√
W8	1.60	56.00	╳	╳	╳	√	√
W9	1.40	57.40	╳	╳	╳	√	√
W10	1.40	58.80	╳	╳	╳	√	√
W11	1.40	60.20	╳	╳	╳	√	√
W12	1.30	61.50	╳	╳	╳	╳	√
Weather	1.20	62.70	╳	╳	╳	╳	√
W13	1.10	63.80	╳	╳	╳	╳	√
W14	1.00	64.80	╳	╳	╳	╳	√
Weekday	0.90	65.70	╳	╳	╳	╳	√
W15	0.90	66.60	╳	╳	╳	╳	√
W16	0.90	67.50	╳	╳	╳	╳	√
W17	0.90	68.40	╳	╳	╳	╳	√
W18	0.90	69.30	╳	╳	╳	╳	√
W19	0.80	70.10	╳	╳	╳	╳	√
W20	0.80	70.90	╳	╳	╳	╳	√
W21	0.80	71.70	╳	╳	╳	╳	╳

Significant values are in bold.