图结构XML文档的关键字检索方法

摘要

研究了基于图结构XML文档的关键字检索方法.根据图结构XML文档的结构特点,结合用户输入的关键字及其类型,建立了用户查询语义模型;定义了拥有完整语义信息的查询结果模型,并从层次结构上分析来定义结果的语义相关性排序方案;提出基于语义的双层索引结构.实验结果表明,算法具有较高的准确率和效率.%Keyword search method is presented on graph-structured XML document. In according with the feature of graph - structured XML documents, considered the keyword and its type by user input, established the user 's query semantic model; The paper define the results model with complete semantic information, and obtain the semantic relevance sorting method from the hierarchical structure. Propose a double-level inverted index with semantic information. Extensive experiments evaluate the performance of method has higher accuracy and efficiency.