[Purpose/Significance] In recent years, mobile search behavior has become an important research problem in the field of information retrieval, a large number of follow-up behaviors occur in the process of mobile search, and the study of mobile search follow-up behaviors can help to understand users' mobile search intention and understand the characteristics of users' mobile search behavior.[Method/Process] From the perspective of the follow-up behavior in the mobile search session, this paper analyzed the characteristics of the user's follow-up behavior in the mobile search session through a user experiment in a real scene, combining the user's mobile interaction log data and structured log data.[Result/Conclusion] In mobile search, the following behaviors triggered by mobile search mainly include continuous search, information sharing, online shopping, call service, travel navigation, among which continuous search and information sharing are the main ones; There are differences in the associations between mobile search tasks, search motivations, search topics and different types of follow-up behaviors; In terms of the APP use path, the user's subsequent APP use path is more complex, showing obvious centrality.
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