摘要：In order to comprehend the mechanism and topology of college IM network, we extract the attribute value of the real network in this thesis, and improve the emergence mechanism of the classical model. Thus the research obtains the emergence mechanism of the instant messaging community network and then generates a simulation network with the same number of nodes and high coincidence with the real one. In this way, the simulation network can substitute the real one to some extent, which not only lay the foundation for the complex networks simulation of instant messaging community network, but pave the way for the next research of simulation based on the dissemination of crisis information.
