Barber and Cand\`es (2015) control of the FDR in feature selection relies on estimating the FDR by the number of knockoff wins +1 divided by the number of original wins. We show that the +1 is necessary in typical scenarios.

翻译：Barber 和 Cand ⁇ ⁇ es (2015年) 在特性选择方面对 FDR 的控制取决于对FDR 的估算,即以击败胜数+1除以原始胜数。 我们显示,在典型情况下,+1 是必需的。