Support Personalized Weighted Local Differential Privacy Skyline Query

Algorithm 2

K-RR numerical perturbation mechanism.

	Input: : attribute value; : privacy budget; : the maximum value in the value range of each attribute.
	Output: : property values after perturbation processing
(1)	if then
(2)
(3)	else
(4)
(5)	end if
(6)	return ;