Chinese Journal of Mechanical Engineering

Table 2 Four feature subsets of Top 30 in four FSMs

From: Vote-Based Feature Selection Method for Stratigraphic Recognition in Tunnelling Process of Shield Machine

Attributes of features	Top 30 of the 197 features
Variance	14, 161, 57, 90, 50, 94, 98, 89, 16, 159, 29, 91, 122, 132, 135, 86, 158, 189, 193, 170, 183, 174, 184, 175, 194, 154, 136, 79, 160, 39
correlation coefficient	122, 86, 89, 161, 88, 87, 90, 103, 154, 99, 135, 25, 21, 20, 148, 19, 60, 23, 96, 24, 109, 22, 51, 100, 2, 45, 53, 119, 69, 48
Chi-square	94, 148, 161, 119, 91, 50, 142, 14, 154, 90, 89, 57, 132, 122, 0, 21, 135, 189, 184, 194, 175, 170, 25, 193, 183, 174, 136, 86, 88, 87
information gain	153, 152, 145, 143, 141, 135, 2, 175, 144, 11, 170, 151, 109, 160, 159, 150, 179, 189, 142, 106, 194, 184, 148, 158, 149, 104, 6, 191, 186, 177

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