Network Intrusion Detection Method Combining CNN and BiLSTM in Cloud Computing Environment

Algorithm 1

The pseudo code of the data extraction algorithm.

	Algorithm data extraction algorithm based on window
	SamExtract (DA, , )
	Input: KDD CUP99 data set DA, window size , extraction threshold
	Output: extracted data set DB
(1)	Initialize sample counter ci = 0, ,
(2)	for k = 1 to |DA|/ do:
(3)	for t = kw to (k + 1) do:
(4)	if Tt = i then:
(5)	ci = ci + 1
(6)	if ci ≥  then:
(7)	Put the current window sample into DB and set the label as i
(8)	end if
(9)	end if
(10)	ci = 0
(11)	end for
(12)	return DB