RT-SAD: Real-Time Sketch-Based Adaptive DDoS Detection for ISP Network

Algorithm 2

Feature updating algorithm.

	Input: Sketch ,
	Output: Sketch ,
(1)	ifthen
(2)	=  + 1
(3)	ifthen
(4)	=  + 1
(5)	end if
(6)	ifthen
(7)	=  − 1
(8)	end if
(9)	end if