Machine Learning: A Novel Approach to Predicting Slope Instabilities

Table 1

Results of the comparison between inverse velocity (IV) method and minimum inverse velocity (MIV) method from 22 different failure examples. For the analysis demonstrated below, all calculations are based on a 60-minute averaging window.

#	Actual time of failure	Prediction: IV	Delta time (hr)	Prediction: MIV	Delta time (hr)	IV – MIV (hr)
(1)	3/10/09 7:12	3/10/09 7:51	0.65	3/10/09 7:42	0.52	0.13
(2)	3/13/13 9:48	3/13/13 9:19	−0.48	3/13/13 8:45	−1.04	−1.51
(3)	3/5/12 4:09	3/5/12 4:34	0.43	3/5/12 4:31	0.38	0.05
(4)	8/3/13 22:06	8/3/13 23:53	1.79	8/3/13 22:15	0.16	1.63
(5)	7/27/12 18:50	7/27/12 19:38	0.81	7/27/12 19:00	0.18	0.64
(6)	10/24/13 22:39	10/24/13 22:40	0.03	10/24/13 20:58	−1.68	−1.65
(7)	5/5/14 5:04	5/6/14 2:41	21.62	5/4/14 20:23	−8.67	12.96
(8)	6/16/14 6:58	6/16/14 7:10	0.21	6/16/14 4:01	−2.95	−2.74
(9)	1/28/12 9:14	1/28/12 12:04	2.84	1/28/12 9:08	−0.10	2.74
(10)	10/29/12 12:15	10/31/12 18:58	54.73	10/29/12 11:58	−0.28	54.45
(11)	9/25/12 8:40	9/26/12 18:16	33.61	9/25/12 4:33	−4.12	29.49
(12)	3/26/13 21:03	4/10/13 23:08	362.10	3/26/13 23:58	2.92	359.18
(13)	2/24/12 11:27	2/24/12 17:03	5.61	2/24/12 13:42	2.26	3.36
(14)	3/2/14 4:23	3/2/14 5:55	1.54	3/2/14 5:48	1.42	0.12
(15)	10/25/12 16:17	10/25/12 16:47	0.51	10/25/12 15:35	−0.69	−0.18
(16)	4/22/13 13:27	4/22/13 13:58	0.52	4/22/13 10:02	−3.40	−2.88
(17)	3/14/10 4:01	3/14/10 4:16	0.26	3/14/10 4:02	0.03	0.24
(18)	7/11/13 0:20	7/11/13 0:25	0.10	7/11/13 0:13	−0.11	−0.01
(19)	7/21/11 15:01	7/21/11 15:17	0.28	7/21/11 14:35	−0.42	−0.14
(20)	6/20/09 22:24	6/21/09 1:09	2.76	6/20/09 23:58	1.57	1.20
(21)	2/9/10 12:38	2/9/10 14:05	1.47	2/9/10 13:20	0.71	0.75
(22)	1/30/15 18:25	1/30/15 21:55	3.51	1/30/15 21:11	2.78	0.74