Table 5 Effect of gamma values on SVR with Gaussian RBF kernel.
From: Machine learning based parameter-free adaptive EWMA control chart to monitor process dispersion
Gamma | 1.00 | 1.50 | 2.00 | 2.50 | ||||
|---|---|---|---|---|---|---|---|---|
h | 1.0700 | h = 1.0343 | h = 1.0200 | h = 1.0074 | ||||
\(\tau\) | ARL | ARL | ARL | SDRL | ARL | SDRL | ARL | SDRL |
1.00 | 368.55 | 368.55 | 370.26 | 353.45 | 370.36 | 354.19 | 368.72 | 351.76 |
1.05 | 114.24 | 114.24 | 117.23 | 107.75 | 120.95 | 111.62 | 121.76 | 113.72 |
1.10 | 52.04 | 52.04 | 52.07 | 42.04 | 53.71 | 44.69 | 54.25 | 43.8 |
1.20 | 20.99 | 20.99 | 21.23 | 13.58 | 21.40 | 13.97 | 21.45 | 13.88 |
1.30 | 12.90 | 12.90 | 13.15 | 7.16 | 12.94 | 7.03 | 13.01 | 7.14 |
1.40 | 9.36 | 9.36 | 9.36 | 4.52 | 9.30 | 4.49 | 9.40 | 4.49 |
1.50 | 7.40 | 7.40 | 7.36 | 3.22 | 7.35 | 3.32 | 7.45 | 3.36 |
1.60 | 6.18 | 6.18 | 6.14 | 2.55 | 6.18 | 2.56 | 6.20 | 2.54 |
1.70 | 5.39 | 5.39 | 5.35 | 2.09 | 5.32 | 2.10 | 5.33 | 2.08 |
2.00 | 3.91 | 3.91 | 3.90 | 1.38 | 3.87 | 1.39 | 3.90 | 1.41 |
