Research Article
A Comparison of Sparse Partial Least Squares and Elastic Net in Wavelength Selection on NIR Spectroscopy Data
Table 3
The results on “corn” data set based on 100 replications.
| | Method | | | Train MSECV(SD) | Test MSE(SD) | Num of selected |
| | Enet | m5spec | moisture | 0.083(0.010) | 0.082(0.019) | 95.120(22.881) | | | | oil | 0.028(0.004) | 0.031(0.008) | 68.420(24.923) | | | | protein | 0.213(0.024) | 0.239(0.043) | 75.870(24.947) | | | | starch | 0.645(0.061) | 0.703(0.131) | 43.120(29.281) | | SPLS | m5spec | moisture | 0.000(0.000) | 0.000(0.000) | 316.010(31.807) | | | | oil | 0.002(0.000) | 0.005(0.001) | 561.370(100.538) | | | | protein | 0.007(0.001) | 0.020(0.006) | 612.560(76.857) | | | | starch | 0.027(0.005) | 0.076(0.024) | 657.480(51.408) | | Enet | mp5spec | moisture | 0.080(0.010) | 0.088(0.016) | 92.720(19.693) | | | | oil | 0.027(0.003) | 0.030(0.006) | 81.820(21.233) | | | | protein | 0.213(0.022) | 0.227(0.040) | 98.230(17.267) | | | | starch | 0.644(0.070) | 0.678(0.140) | 23.830(20.286) | | SPLS | mp5spec | moisture | 0.008(0.001) | 0.021(0.047) | 477.020(47.843) | | | | oil | 0.005(0.001) | 0.010(0.003) | 675.730(38.556) | | | | protein | 0.010(0.002) | 0.025(0.008) | 530.010(63.240) | | | | starch | 0.060(0.010) | 0.151(0.052) | 637.700(45.997) | | Enet | mp6spec | moisture | 0.080(0.011) | 0.088(0.020) | 99.180(24.223) | | | | oil | 0.027(0.003) | 0.031(0.006) | 78.620(19.547) | | | | protein | 0.207(0.021) | 0.241(0.038) | 82.990(29.517) | | | | starch | 0.650(0.070) | 0.698(0.117) | 44.720(30.092) | | SPLS | mp6spec | moisture | 0.010(0.002) | 0.025(0.007) | 497.520(50.199) | | | | oil | 0.005(0.001) | 0.010(0.003) | 338.410(73.079) | | | | protein | 0.010(0.002) | 0.024(0.008) | 264.360(56.396) | | | | starch | 0.058(0.010) | 0.140(0.041) | 525.090(101.531) |
|
|
