Skip to main content
. Author manuscript; available in PMC: 2016 Apr 22.
Published in final edited form as: IEEE Trans Neural Netw Learn Syst. 2014 Oct;25(10):1879–1893. doi: 10.1109/TNNLS.2013.2297686

TABLE V.

Regression performance with alternative optimization criteria.

Method KRRR KRRP PCRR PCRF

Data set Ours Sum Product Ours Sum Product Ours Sum Product Ours Sum Product

Housing 2.89(0.77) 3.06(0.78) 3.30(0.85) 3.71(0.87) 4.75(0.89) 4.66(1.75) 4.04(0.88) 9.46(5.73) 6.48(3.85) 8.45(1.72) 5.56(6.77) 4.97(3.98)
Mpg 2.51(0.52) 2.63(0.50) 2.64(0.49) 2.82(0.45) 4.34(2.51) 18.04(2.59) 3.00(0.58) 4.56(0.83) 4.25(0.69) 7.30(0.81) 5.48(6.04) 4.29(3.21)
Slump 6.62(1.49) 6.87(1.51) 6.85(1.51) 7.09(1.22) 8.03(1.78) 13.17(2.84) 6.39(1.53) 7.65(1.86) 7.64(1.87) 7.68(1.88) 14.70(9.04) 16.79(9.10)
Price 2.21(0.90) 2.73(1.45) 2.76(1.46) 3.08(1.20) 2.72(1.11) 3.10(1.11) 3.90(2.16) 4.17(2.85) 4.17(2.86) 6.06(1.93) 8.76(1.99) 13.43(20.9)
Diabetes 0.55(0.23) 0.66(0.29) 0.75(0.33) 0.52(0.17) 0.60(0.21) 3.47(2.15) 0.76(0.33) 0.86(0.45) 0.86(0.43) 1.01(1.47) 1.09(1.56) 0.65(0.22)
Wdbc 31.46(1.59) 47.99(7.01) 48.60(8.98) 34.11(4.23) 51.31(16.98) 64.29(73.02) 30.66(4.71) 34.01(4.86) 38.91(5.31) 34.47(10.27) 56.61(19.90) 56.58(32.64)
Servo 0.51(0.29) 0.60(0.31) 0.57(0.30) 0.70(0.25) 0.94(0.36) 1.33(0.40) 0.71(0.30) 0.83(0.50) 0.86(0.49) 1.13(0.25) 0.70(0.27) 0.91(0.33)
Puma-8nm 1.44(0.02) 1.50(0.03) 1.50(0.03) 1.42(0.02) 3.40(0.59) 3.89(0.04) 3.69(0.02) 2.25(0.38) 2.37(0.53) 3.71(0.32) 8.50(0.87) 6.96(3.00)
Puma-8nh 3.65(0.03) 3.80(0.03) 3.86(0.04) 5.08(1.26) 4.36(0.29) 4.54(0.03) 4.39(0.04) 3.90(0.64) 3.97(0.65) 4.58(0.29) 13.82(3.81) 11.27(5.41)
Puma-8fm 1.13(0.01) 1.18(0.01) 1.18(0.01) 1.27(0.01) 1.52(0.48) 2.79(0.12) 1.28(0.05) 2.58(0.97) 2.09(0.84) 1.29(0.005) 6.98(1.23) 3.88(2.81)
Puma-8fh 3.23(0.01) 3.28(0.02) 3.28(0.02) 3.78(0.16) 3.81(0.38) 3.79(0.08) 3.22(0.01) 3.40(0.38) 3.30(0.12) 3.75(0.24) 9.78(5.64) 7.82(5.44)
Kin-8nm 0.11(0.002) 0.12(0.008) 0.13(0.01) 0.18(0.0008) 0.21(0.02) 0.68(0.35) 0.19(0.01) 0.21(0.02) 0.22(0.02) 0.22(0.04) 0.27(0.24) 0.26(0.25)
Kin-8nh 0.18(0.001) 0.19(0.002) 0.19(0.002) 0.20(0.002) 0.22(0.005) 0.42(0.27) 0.21(0.007) 0.22(0.002) 0.23(0.01) 0.25(0.005) 0.50(0.47) 0.29(0.01)
Kin-8fm 0.016(0.002) 0.020(0.0005) 0.020(0.0005) 0.013(0.0001) 0.020(0.0001) 0.57(0.22) 0.05(0.01) 0.07(0.03) 0.06(0.01) 0.02(0.0001) 0.11(0.29) 0.03(0.01)
Kin-8fh 0.07(0.002) 0.05(0.0007) 0.046(0.0005) 0.046(0.0002) 0.05(0.0001) 0.75(0.30) 0.06(0.01) 0.08(0.03) 0.08(0.02) 0.07(0.07) 0.13(0.25) 0.06(0.02)