Privacy has been acknowledged to be a critical requirement for many business environments. A variety of uncertainty and mutability poses challenges when sharing resources must happen in collaborative environment. Therefore, the definition of an efficient access control model, based on which...

Privacy-preserving data publishing is to protect sensitive information of individuals in published data while the distortion ratio of the data is minimized. One well-studied approach is the K-anonymity model. Recently, several authors have recognized that K-anonymity cannot prevent attribute...