一种基于NFA查询重写的XML过滤技术

NFA-Based Query Rewriting for XML Filtering

研究了可扩展的标志性语言(XM L)存取控制策略。通过基于不确定的自动机(NFA)的XM L查询重写技术,实现了支持精细粒度的XM L文档存取控制策略。通过构造XM L文档存取控制策略的NFA以及基于NFA的查询语句重写技术,有效地实现了独立于视图的、高效的XM L精细粒度的存取控制。

This paper studies XML access control and introduces an NFA-based query rewriting technique, which supports fine-grained access control for XML documents. An efficient access control policy enforcement method is achieved by building NFAs of XML access control policies and rewriting queries based on NFAs.