A New Reliability Rock Mass Classification Method Based on Least Squares Support Vector Machine Optimized by Bacterial Foraging Optimization Algorithm

Table 1

Selection rule of reflection surface coefficient.

Reflector distribution	Not obvious	Visible	Obvious	Strong	Extremely obvious
Evaluation value	0 ∼ 0.2	0.2 ∼ 0.4	0.4 ∼ 0.6	0.6 ∼ 0.8	0.8 ∼ 1.0