In this paper

the normal cloud model for network intrusion detection

and a normal cloud model is based on the network intrusion detection algorithms

to take the first feature extraction algorithm and calculate the impact of weight factor

the introduction of cloud computing attributes generators and difference eigenvalue

the value of comprehensive evaluation of the application to judge the invasion

resulted in a reduction of a single attribute of the local impact.The experimental results show that this method can detect more effective network data in real unknown intrusions

to a certain extent to solve some of the current intrusion detection algorithms detect the existence of the low rate of high false alarm rate.