Task Grid-Based Urban Environmental Information Release Mechanism for Mobile Crowd Sensing

Algorithm 1

Algorithm for removing low-quality data in task grid.

	Sort the elements of each vector in the matrix from largest to smallest to obtain a matrix
	Input: the matrix
	Output: the resulting matrix is
(1)	For vector
(2)	Begin
(3)	For the vector
(4)
(5)	For (, , )
(6)	If
(7)	save
(8)	else
(9)
(10)	End if
(11)	End for
(12)	End begin