Semi-Homogenous Generalization：Improving Homogenous Generalization for Privacy Preservat

Semi-Homogenous Generalization：Improving Homogenous Generalization for Privacy

Preservation in Cloud Computing

Xian-Mang He;Xiaoyang Sean Wang;Dong Li;Yan-Ni Hao

【期刊名称】《计算机科学技术学报（英文版）》

【年(卷),期】2016(031)006

【摘要】Data security is one of the leading concerns and primary challenges for cloud computing. This issue is getting more and more serious with the development of cloud computing. However, the existing privacy-preserving data sharing techniques either fail to prevent the leakage of privacy or incur huge amounts of information loss. In this paper, we propose a novel technique, termed as linking-based anonymity model, which achieves K-anonymity with quasi-identifiers groups (QI-groups) having a size less than K. In the meanwhile, a semi-homogenous generalization is introduced to be against the attack incurred by homogenous generalization. To implement linking-based anonymization model, we propose a simple yet e?cient heuristic local recoding method. Extensive experiments on real datasets are also conducted to show that the utility has been significantly improved by our approach compared with the state-of-the-art methods.

【总页数】12页(1124-1135)