Small World Network Research And An Analysis Of It's Epidemic Spreading

Recently, small world network theory is alternately produced by physics, mathematics, behavioural science and the computer science and so on. Small world network reflects some important features in actual system and becomes an effective method to the real networks research, which can be used widely. And it has a great future.Many scientists have always concerned the problem of epidemic spreading. This article is about the origin, the principle and the disseminate dynamic of small world network. And it mainly studies the domain application of epidemic spreading. SARS model is established which based on small world network, consideration of Self-healing, Super promoters, Feedback Mechanism, Transparency of information and Personnel movement, and discussed the parameters of the model as well as the practical significance. On this basis, through regressing and analysing the SARS epidemic in Hong Kong, I determine the parameters, use the data of Beijing to verify the model and get the simulation that fits well with the observed data.