Support Personalized Weighted Local Differential Privacy Skyline Query

Algorithm 3

Skyline query based on PWLDP algorithm.

	Input: : local skyline query results for each organization; : privacy budget; : the proportion of weights under each attribute.
	Output:  =  : global skyline query results.
(1)	for local skyline query data set from 1 to do
(2)	for data record from 1 to do
(3)	for each attribute from 1 to do
(4)
(5)
(6)
(7)
(8)	= np.full(shape = , fill_value = )
(9)
(10)	= np.random.choice(a = range(1, ), p =
(11)	end for
(12)	end for
(13)	end for
(14)	for each in List do
(15)	flag = True
(16)	for each in List do
(17)	ifthen
(18)	if () then
(19)	return or
(20)	flag =
(21)	end if
(22)	end if
(23)	end for
(24)	return. Index
(25)	end for
(26)
(27)	return to each organization