XML信息集及推理闭包的动态生成方法

Dynamical Generation of XML Information and Inference-closed Set

XML动态推理控制的一个重要技术环节是如何简洁完整地记录用户获得的信息。文中采用模式树的形式将用户获得的信息保存在历史信息集中,当用户访问XML数据时,将访问结果包含的信息加入到历史信息集中,并利用模式树的信息包含关系消除冗余信息,同时使用XML关键字来合并XML元素。然后根据推理规则对XML历史信息集进行推理闭包扩展,使XML历史信息集能够完整地反映用户已了解的信息。

One important technical step of XML dynamic inference control is how to Simply and comprehensively save user＇s known information. Here in a form of XML pattern tree ,the user＇s known information is saved in an XML information set. When a user queries XML data, the information contained in the query result is added to the information set, thus eliminating the redundancy in accordance with the containing relationship of XML information and merging XML elements based on the XML keys. Then based on inference rules, the inference-closed information set is generated, which contains all the information known by the user directly or indirectly.