Table 2 Comparison of the inversion results.

From: Robust parameter inversion of coal mining subsidence based on the combination of RANSAC and DE algorithms

Parameter

q

\(tan\beta\)

\(\theta /^{\circ }\)

\(S_{l}/m\)

\(S_{r}/m\)

\(S_{u}/m\)

\(S_{d}/m\)

Design value

0.8

2

86

40

40

40

40

DE

Average value

0.7994

2.0043

86.1853

40.9453

40.7908

39.9154

39.828

Relative Error

0.08%

0.22%

0.22%

2.36%

1.98%

0.21%

0.43%

Huber-DE

Average value

0.7994

1.9919

85.7619

41.1586

38.8275

39.1404

40.7702

Relative Error

0.08%

0.41%

0.28%

2.90%

2.93%

2.15%

1.93%

RANSAC-DE

Average value

0.8011

1.9955

86.1145

38.8453

39.0908

40.6799

41.1144

Relative Error

0.14%

0.23%

0.13%

2.89%

2.27%

1.70%

2.79%

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