A Fast Density Peak Clustering Method with Autoselect Cluster Centers

Algorithm 2

Select cluster centers and determine core group sample labels.

(1)	Input: Core set , Group set ,
(2)	Output: Center set , Cluster set
(3)	Create set
(4)	While exist in  do
(5)	/ Merge all core groups /
(6)
(7)	For each sample in  do
(8)	/ When a core group is added to a cluster or a cluster is created, the transitivity between the remaining core groups and the cluster is judged /
(9)	If exist  then
(10)	/ transitivity judgment /
(11)
(12)
(13)
(14)	Break
(15)	End if
(16)	End for
(17)	If then
(18)	/ group is not transitive to any existing label group /
(19)	Create new cluster ()
(20)
(21)
(22)
(23)	End if
(24)	End while