Innovation group in author collaboration network

Based on the author collaboration network of the scientific articles, the model of the innovation group is presented. It is validated by the theoretic analysis and computer simulation that the degree distribution of the network nodes is a power law and this network is a scale-free network. In order to make sure the validity of the network model, we gather the articles in a Journal, and construct a author collaboration network. By analyzing the data of the network, the demonstration results are consistent with that of the model. Therefore, this model can be applied to study the evolvement of the innovation group in the author collaboration network.