Table 4: Dataset = German Credit [feature dim=59, #(train data)=700]
k	Method	%Var(↑)	MMD2(↓)	%Acc(↑) kernel	ΔDP(↓) SVM	%Acc(↑) linear SVM	ΔDP(↓) MLP
2	PCA	11.13(0.32)	0.293(0.054)	75.47(0.67)	0.15(0.09)	70.3(1.59)	0.03(0.08)
Olfat and Aswani (2019) (0.1)	7.25(0.65)	0.024(0.01)	71.53(1.85)	0.02(0.02)	69.97(1.93)	0.0(0.0)
Olfat and Aswani (2019) (0.0)	7.28(0.52)	0.022(0.009)	72.03(1.99)	0.02(0.02)	69.97(1.93)	0.0(0.0)
Lee et al. (2022) (1e-3)	9.82(0.45)	0.027(0.018)	74.87(1.76)	0.05(0.04)	69.97(1.93)	0.0(0.0)
Lee et al. (2022) (1e-6)	8.89(0.5)	0.027(0.015)	73.23(2.27)	0.03(0.03)	69.97(1.93)	0.0(0.0)
Kleindessner et al. (2023) (mean)	10.39(0.62)	0.031(0.018)	76.77(1.47)	0.04(0.03)	69.97(1.93)	0.0(0.0)
Kleindessner et al. (2023) (0.85)	6.97(0.41)	0.021(0.008)	73.17(2.03)	0.03(0.03)	69.97(1.93)	0.0(0.0)
Kleindessner et al. (2023) (0.5)	4.66(0.22)	0.017(0.013)	71.6(2.84)	0.02(0.02)	69.97(1.93)	0.0(0.0)
Kleindessner et al. (2023) (kernel)	N/A	N/A	69.8(1.21)	0.0(0.0)	69.8(1.21)	0.0(0.0)
Ravfogel et al. (2020)	3.25(0.38)	0.007(0.004)	71.33(2.32)	0.02(0.02)	69.97(1.93)	0.0(0.0)
Ravfogel et al. (2022a)	3.19(0.36)	0.04(0.024)	71.37(2.5)	0.03(0.04)	69.97(1.93)	0.0(0.0)
Samadi et al. (2018)	N/A	N/A	74.2(2.15)	0.06(0.04)	69.93(1.99)	0.0(0.0)
Ours (offline, mean)	10.39(0.62)	0.031(0.018)	76.77(1.47)	0.04(0.03)	69.97(1.93)	0.0(0.0)
Ours (FNPM, mean)	10.39(0.62)	0.031(0.018)	76.7(1.43)	0.04(0.03)	69.97(1.93)	0.0(0.0)
Ours (offline, m=10)	6.36(0.51)	0.017(0.008)	72.6(2.37)	0.03(0.02)	69.97(1.93)	0.0(0.0)
Ours (FNPM, m=10)	6.55(0.44)	0.019(0.01)	73.0(2.36)	0.02(0.02)	69.97(1.93)	0.0(0.0)
Ours (offline, m=25)	4.89(0.24)	0.032(0.018)	72.77(2.57)	0.04(0.04)	69.97(1.93)	0.0(0.0)
Ours (FNPM, m=25)	4.91(0.29)	0.028(0.018)	72.53(2.37)	0.03(0.02)	69.97(1.93)	0.0(0.0)
10	PCA	38.19(0.85)	0.137(0.012)	99.93(0.13)	0.09(0.06)	74.43(0.68)	0.14(0.14)
Olfat and Aswani (2019) (0.1)	29.1(0.98)	0.022(0.006)	99.97(0.1)	0.1(0.06)	71.43(2.47)	0.03(0.04)
Olfat and Aswani (2019) (0.0)	29.0(0.98)	0.021(0.005)	99.97(0.1)	0.1(0.06)	71.3(2.44)	0.02(0.04)
Lee et al. (2022) (1e-3)	33.04(1.11)	0.022(0.006)	100.0(0.0)	0.1(0.06)	74.3(1.66)	0.09(0.02)
Lee et al. (2022) (1e-6)	16.6(1.08)	0.014(0.003)	94.43(1.55)	0.07(0.06)	69.97(1.93)	0.0(0.0)
Kleindessner et al. (2023) (mean)	35.72(0.83)	0.024(0.004)	99.97(0.1)	0.1(0.06)	74.1(2.09)	0.09(0.05)
Kleindessner et al. (2023) (0.85)	27.69(0.82)	0.02(0.004)	100.0(0.0)	0.1(0.06)	72.97(3.06)	0.05(0.05)
Kleindessner et al. (2023) (0.5)	19.87(0.61)	0.016(0.004)	99.9(0.15)	0.1(0.06)	70.83(2.87)	0.01(0.02)
Kleindessner et al. (2023) (kernel)	N/A	N/A	70.1(1.18)	0.0(0.01)	69.8(1.21)	0.0(0.0)
Ravfogel et al. (2020)	15.0(0.88)	0.01(0.002)	99.1(0.47)	0.1(0.06)	70.7(2.39)	0.01(0.02)
Ravfogel et al. (2022a)	16.41(1.1)	0.022(0.011)	99.9(0.15)	0.1(0.06)	71.8(3.08)	0.03(0.04)
Samadi et al. (2018)	N/A	N/A	99.07(0.57)	0.1(0.06)	75.87(0.92)	0.11(0.1)
Ours (offline, mean)	35.72(0.83)	0.024(0.004)	99.97(0.1)	0.1(0.06)	74.1(2.09)	0.09(0.05)
Ours (FNPM, mean)	35.73(0.84)	0.024(0.004)	99.97(0.1)	0.1(0.06)	74.07(2.12)	0.09(0.05)
Ours (offline, m=10)	26.24(0.94)	0.018(0.004)	99.9(0.21)	0.1(0.06)	72.83(3.07)	0.04(0.04)
Ours (FNPM, m=10)	26.23(0.81)	0.018(0.004)	99.9(0.21)	0.1(0.06)	71.37(3.41)	0.02(0.04)
Ours (offline, m=25)	21.1(0.48)	0.027(0.005)	99.87(0.22)	0.1(0.06)	71.77(3.56)	0.02(0.03)
Ours (FNPM, m=25)	21.06(0.52)	0.026(0.005)	99.9(0.15)	0.1(0.06)	71.77(3.41)	0.03(0.04)