Network Security Situation Assessment Model Based on Extended Hidden Markov

Algorithm 1

Algorithm for solving hidden state probability distribution sequence.

	Input: model λ of HMMP, observation vector sequence Y, real-time efficiency sequence F
	Output: final hidden state probability distribution sequence
(1)	for t = 1 to T do
(2)	if t = = 1
(3)	for i = 1 to N do
(4)
(5)
(6)	repeat
(7)	else
(8)	for i = 1 to N do
(9)
(10)
(11)
(12)	repeat
(13)	endif
(14)	repeat
(15)	return X;