An Adaptive Multiexecutors Scheduling Algorithm Based on Heterogeneity for Cyberspace Mimic Defense

Algorithm 2

Scheduling algorithm based on high-order heterogeneity and confidence (HHAC).

	Input: Executor pool , Vulnerability Topology Graph , Random Survival Time , sleep threshold
	Output: Online executor pool , offline executor , online executor
	Function Select-First
	/ Select initial online executor set /
(1)	;
(2)	Compute heterogeneity threshold :
(3)	If then
(4)
(5)	For each in
(6)	If < min then
(7)	min
(8)	Endif
(9)	Return min
	/ Select offline executor /
	Function offline executor
(10)	For each in :
(11)
(12)
(13)	If or :
(14)	offline
(15)	Return
	/ Select replaced online executor /
	Function Select-New
(16)	For in , in :
(17)	If and then
(18)
(19)	End if
(20)	Return
	/ Compute heterogeneity of executors /
	Function HTVG (VTG)
(21)	Return ,