Preface The data of mobile Internet have the characteristics of large scale, variety of patterns, complex association and so on. On the one hand, it needs efficient data processing model to provide support for data services, and on the other hand, it needs certain computing resources to provide data security services. Due to the limited resources of mobile terminals, it is impossible to complete large-scale data computation and storage. However, outsourcing to third parties may cause some risks

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... in user privacy protection. This monograph focuses on key technologies of data service outsourcing and privacy protection in mobile Internet, including the existing methods of data analysis and processing, the fine-grained data access control through effective user privacy protection mechanism, and the data sharing in the mobile Internet, which provide technical support for improving various service applications based on mobile Internet.