Location Privacy Protection Research Based on Querying Anonymous Region Construction for Smart Campus

Algorithm 1

Anonymous subregion generation algorithm based on querying region division.

	Input: pieces of locations ; the query radius ; the privacy requirement ;
	Output: anonymous region set ;
(1)	for to do
(2)	;
(3)	;
(4)	;
(5)	, calculating ;
(6)	end for
(7)	for to and do
(8)	;
(9)	;
(10)	, calculating ;
(11)	if then
(12)	;
(13)	end if
(14)	if then
(15)	;
(16)	end if
(17)	end for
(18)	return