An immune genetic algorithm considering the velocity was brought forward, and the approach implements a real time solution to the problem. 针对具体问题，提出了一种免疫遗传算法，对算法的快速性作出了考虑，满足了求解的实时性要求。
First it used the information entropy theory to search the possible network structure quickly.Then, found out the best BN structure using the immune genetic algorithm. 首先，通过信息论迅速搜索较为可能的网络空间，构造一个候选网络，然后用免疫遗传算法进行网络精简，得到一个最优的网络结构。
