An extreme rainfall-induced landslide susceptibility assessment using autoencoder combined with random forest in Shimane Prefecture, Japan

Geoenvironmental Disasters

Table 1 Description and frequency ratio (FR) of topographical and distance to factors in the study area

Factors	Values	No. of Landslides	FR	Factors	Values	No. of Landslides	FR
Altitude (m)	0–105.77	59	2.15	Profile curvature	−37.55 - (− 3.71)	3	0.84
	105.78–215.95	21	0.80		−3.72 - (−1.18)	6	0.43
	215.96–339.36	10	0.43		−1.19 - 1.03	39	0.90
	339.37–550.90	0	0		1.04–3.87	36	1.53
	550.91–1123.84	0	0		3.88–43.08	6	1.06
Slope (degree)	0–9.50	2	0.78	Dis. to stream	< 101	58	1.64
	9.51–19.00	30	1.11		101–200	21	0.73
	19.01–28.21	29	1.08		201–300	8	0.44
	28.22–38.00	24	0.92		301–400	3	0.46
	38.01–73.40	5	0.71		> 401	0	0
Plan curvature	−49.05 - (−3.81)	2	0.78	Dis. to road	< 200	39	2.91
	−3.82 - (−1.11)	12	1.11		201–400	17	1.38
	−1.12 - 0.57	47	1.08		401–600	7	0.64
	0.58–2.60	24	0.92		601–800	5	0.52
	2.61–37.03	5	0.71		> 801	22	0.50