RETRACTED: Construction of Surface Water Pollution Prediction Model Based on Machine Learning

Table 2

Variable selection based on LASSO-LARS.

Coefficient	1	2	3	4	5	6	7	8	9	10
α1	0	0.311	0.317	0.319	0.682	0.557	0.56	0.542	0.542	0.53
α2	0	0	0	0	0	0.11	0	0	0	0
α3	0	0	0	0	0	0	0.14	0.126	0.128	0.116
α4	0	0	0	0	0	0	0	0.026	0	0
α5	0	0	0	0	0	0	0	0.006	0.004	0.002
α6	0	0	0	0	0	0	0	0	0	0
α7	0	0	0	0	0	0	0	0.008	0.009	0.005
α8	0	0	0	0	0	0	0	0	0	0
α9	0	0	0	0	0	0.132	0.137	0.159	0.177	0.196
α10	0	0	0	0	0	0	0.121	0	0	0
α11	0	0	0	0	0.04	0	0	0	0	0
α12	0	0	0	0	0	0	0	0.195	0.185	0.116
α13	0	0	0	0	0	0.014	0
α14	0	0.206	0.329	0.322	0.287	0.297	0.18	0.196	0.208	0.291
α15	0	0	0	0.102	0	0	0	0	0	0
α16	0	0	0	0	0	0	0.003	0	0	0
AIC	2.581	3.476	0.964	0.074	0.056	0.034	0.031	0.026	0.022	0.012