摘要
以往的记录链接技术通常要求数据向某一方或第三方公开,常采用数据隐藏或加密技术进行隐私保护,其缺点是降低数据的准确性或不能很好地保持数据之间的距离。提出利用复杂对象匹配领域常用的嵌入式向量空间技术,选取随机参数生成新的坐标系,将记录通过映射算法嵌入到新空间再进行相似性比较。在保持数据间相对距离的基础上进行记录链接,在保证链接效果的同时实现隐私保护。分析证明了协议对链接双方数据的隐私保护要求。
The commonly used record - linking techniques normally require data to be disclosed to one of the participant parties or a third party. Data -hidden or encryption techniques normally be used to keep privacy,and as a result can reduce the veracity or can＇t preserve the distance of data. The embedding vector space techniques which are frequently used in complex objects matching area are proposed, by selecting random parameters to generate new coordinate system, embedding the original data into the new space and processing the similarity linking there. This Method keeps the distance of the data, and at the same time,preserves the privacy without reducing the linkage affection. The efficiency of the protocol is proved.
出处
《现代电子技术》
2009年第14期138-141,共4页
Modern Electronics Technique
基金
上海市教委科研创新资助项目(08ZZ171)
关键词
记录链接
嵌入式空间
隐私保护
映射算法
record linking
vector space
privacy - preserving
mapping algorithm
