The random-binning construction based on p(delta)=delta k''(delta) does not yield a random map for the Gaussian kernel because its second derivative is not everywhere positive. · CiteArk
The random-binning construction based on p(delta)=delta k''(delta) does not yield a random map for the Gaussian kernel because its second derivative is not everywhere positive.
来源：paper:PDF p. 4, Section 4, paragraph following Figure 2
