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We propose and study an evolving network model for instant messaging system (IMS) with local-world preferential connections and acquaintance introduction mechanisms, which exist in many physical complex networks especially in IMS evolving network. We put forward the algorithms to generate IMS evolving network model and through simulation results we talk about the topological properties of the IMS...
ICS have become very popular communication tolls nowadays. They can provide instant, multi-directed and multi-types of communications which makes the message spreading in ICS different from those in WWW, Blog and email systems. Groups have great impacts on message spreading in ICS. The research demonstrates the power law distribution of groups in MSN with parameter Upsi ranging from 0.76 to 1.22....
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