A Novel Local Density Hierarchical Clustering Algorithm Based on Reverse Nearest Neighbors

Algorithm 1

RNN-LDH(X, k).

(1)	;
(2)	GetLDH(X, k);
(3)	;
(4)	;
(5)	for all
(6)	if  = UNLABELED
(7)	if
(8)	;
(9)	if
(10)	;
(11)	;
(12)	;
(13)	end if
(14)	else
(15)	;
(16)	end if
(17)	end if
(18)	end for
(19)	;
(20)	while (bChanged)
(21)	;
(22)	for all
(23)	;
(24)	if cid  Noise &&
(25)	;
(26)	bChangedTRUE;
(27)	end if
(28)	end for
(29)	end while
(30)	return label;