This kind of model can classify the consumer system and describe the transition relationship between different types of consumers. The classification of consumers by Bass model is no longer satisfied with the current situation of existing types of consumers, and the epidemic model can meet this situation. Because this paper needs to consider the impact of new product information release mode, and consumers have the right of choice and judgment, compared with the traditional infectious disease model, we need to improve the consumer state transition probability and decision transition rules.<br>
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