CVE values determined by 10-fold CV and our approximation formula against λ_<i>T</i>.

λℓ1 is fixed to the optimal value (2λℓ1/M = 1, coincidentally common to all cases). The number in brackets denotes the error bar to the last digits. The optimal values are bolded. The tuning constants δ and θ are set to be δ = 10−4 and θ = 10−12, respectively.将λℓ1固定为最优值（满足2λℓ1/M = 1，巧合的是该数值在所有工况下均一致）。括号内的数字表示末位数值对应的误差棒（error bar）。最优值以粗体标注。调优常数δ与θ分别设置为δ=10⁻⁴和θ=10⁻¹²。