基于VLCA的关键字查询匹配算法

Matching Arithmetic for Keywords Query Based on VLCA

与标准的方法——XQuery查询语言不同,XML文档的关键字查询能使用户方便地访问XML数据,不必考虑数据复杂模式和掌握复杂查询描述语言。对关键字查询中两个主要问题进行定义,提出一种基于VLCA的启发式结构分析算法;并对结果节点使用关键字分类算法进行推断。该算法能综合分析XML数据的值信息和结构信息,适用于子树返回和路径返回的精确查询要求。

Keyword search enables Web users to easily access XML data without the need to learn a structured query language and to study possibly complex data schemas. Two problems of keyword search are addressed, pro-posed a heuristics way based on VLCA, and deduced return node using generic arithmetic. These can analyse the value and structure information of XML, and can meet the precise demand such as subtree return and path return.