基于多选集的视图安全发布算法

Algorithm of View Secure Publishing Based on Multi-set

现有的视图发布安全判定算法缺少对在先验知识条件下视图发布安全性的研究。将先验知识作为安全判定条件引入到视图安全发布算法中,提出符合多选集的视图安全发布方法,采用元组概括过滤思想形成视图,避免数据精度损失过大,在可接受的相对安全范围内发布视图,给出具体实现算法Multi-set算法。实验证明该算法能有效提高发布视图安全性。

Existing algorithms about secure determining are lack of study for situation having prior knowledge. Injecting prior knowledge as secure determining conditions into view publishing algorithm, method of view publishing based on multi-set is proposed. Generating view through thought of generalization and filtration, the loss of precision of data is lowed. View is published within acceptable scope of relative safety and multi-set algorithm is given. Experimental results show that this algorithm can improve publishing view＇s security.