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With the development of social networks, users' privacy is threatened seriously. To protect privacy, in this paper a rotation perturbation method based on algorithm RBT (Rotation-Based Transformation) is improved. The new algorithm PPRRP (Privacy Preservation by Random Rotation Perturbation) establishes social networks into a vectors model and carries on rotation perturbation. This method reduces...
With the development of healthcare industry, healthcare informatization provides great potential for the healthcare improvement. The cloud computing platform, which is an important infrastructure for the inter(intra)-organization collaboration, provides a shared storage space to the medical data sharing. For the privacy protection of medical data, sensitive data has to be encrypted before being transmitted...
With the explosive growth of medical information, the users not only query information efficiently and accurately, but also pay attention to the information of sensitivity and privacy. In medical domains, the current privacy preserving methods either use the technology of Access Control List, or need to prepare training documents for each privacy policy. However, it is a time-consuming and impractical...
Online social networks have enabled communication, collaboration and information sharing in the healthcare domain. Despite the benefits offered by new healthcare social networking applications, there are many challenges. The unique trust and privacy requirements of healthcare make trust management an utmost important issue. In this paper, we propose a personalized self-managed trust model, MedTrust,...
Privacy protection is a vital issue for safe social interactions within social networking sites (SNS). Although SNSs such as My Space and Face book allow users to configure their privacy settings, it is not a simple task for normal users with hundreds of online friends. In this paper, we propose an intelligent semantics-based privacy configuration system, named SPAC, to automatically recommend privacy...
Due to the rapid development of mobile computing technology and social network service, mobile social network emerges as a new network paradigm, which significantly facilitates the communication and resource sharing between mobile clients/users that are socially interconnected. However, the functionality and security of such networks would be potentially undermined without an effective trust management...
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