Survivability based node weight diversity deploy algorithm.

It is widely believed that diversity in network systems and software will decrease the virulence of malicious codes and the domino effect of singlrrepeat attacks. Proposes a survivability based nodeweight diversity deploy algorithm. Starting from node importance, the algorithm assigns distinct software to all nodes. The algorithm can guarantee the minimal impact of a single node on the network systems as well as achieve high survivability of the core nodes. The algorithm is proved to be effective through simulation experiments. [ABSTRACT FROM AUTHOR]