时态XML索引Txmlsindex

A Temporal XML Index: Txmlsindex

时态XML数据操作的基本途径是相应时态索引模式,而时间信息与结构信息的整合协同是涉及索引效率的关键技术.该文研究了一种基于时态拟序和时态编码协调的时态XML快照索引Txmlsindex,实现了"一次一集合"的时态数据查询和基于Tcodes编码的结构信息重置;比较评估Txmlsindex的可行性与有效性;提出的技术框架和索引模式还可拓展到时态XML的一般查询过程当中.

Temporal index schema is a basic approach for temporal XML data operation and it is critical for improving the efficiency of indexes of the cooperative integration between temporal information and structural information.Based on temporal quasi-order and temporal coding,a temporal XML Snapshot index,Txmlsindex,which implements querying with ＂one time one set＂and reconstructs structure with coding Tcodes is studied. Besides,the related simulations show that the feasibility and effectiveness of Txmlsindex are superior to the literature. The technological frame and index schema of this paper can be expanded to normal query process of temporal XML.