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，通過資訊理論迅速搜索較為可能的網路空間，構造一個候選網路，然後用免疫遺傳演算法進行網路精簡，得到一個最優的網路結構。
This paper is about the network architecture and the technology of equipments of video on de-mand. It also points out some shortages of the technology. 本文分析了影視點播的網路結構和設備的主要技術，並指出其存在的問題。
