An algorithm to determine the index of structural controllability for network system

Along with expansion of the network scale, much more attention has been paid to the information transmission among nodes in network and the resulted control problem. Therefore, the index of structural controllability is introduced in this paper to characterize the performance indices when network system can be controlled within finite time. Furthermore, an algorithm is proposed to obtain the index and related control chains, which provides scientific basis for the corresponding study on the design of controllers and the effective division of subgroup in large-scale network.