面向多敏感属性的个性化分级(l,α,m)-多样性匿名方法

An Personalized Classification(l,α,m)-diversity Anonymous Approach for Multi-sensitive Attributes

为了防止多敏感属性中敏感属性语义相似性导致的隐私泄露问题,同时尽可能减少匿名保护时的信息损失,提出了个性化分级(l,α,m)-多样性匿名模型。该模型根据敏感属性的语义相似性,对敏感属性进行分级,通过等价类分级加权多样度灵活控制敏感属性语义相异度,控制隐私泄露风险。在此基础上,给出一种基于聚类的匿名模型算法,该算法针对不同准标识符属性设置不同的权值进行泛化处理,构建个性化分级(l,α,m)-多样性匿名模型。实验结果表明,提出的聚类算法能很好地实现个性化分级(l,α,m)-多样性匿名模型,并且能够有效地保护含多敏感属性的个体隐私信息。

To prevent the privacy disclosures caused by semantic similarity of multi-sensitive attributes and reduce the information loss resulting from anonymous protection. This paper put forward the personalized classification (l,α,m)-diversity anonymous model. According to the semantic similarity of sensitive attributes, the model carry on the classification of sensitive attribute, and control the semantic dissimilarity flexible by the equivalence class hierarchy weighting diversity, and control the risk of privacy disclosures. On this basis, this paper proposed an algorithm based on clustering. The approach adopted strategies of data generalization for different standard identifier attribute set of different weights of generalization and build a personalized classification (l,α,m)- diversity anonymous model. The experimental results show that the algorithm can well realize personalized classification ( l,α,m)-diversity anonymous model, and effectively protect individual privacy information of multi-sensitive attributes .