多维连续不确定XML数据模型及聚集查询算法  

MULTI-DIMENSIONAL CONTINUOUS UNCERTAIN XML DATA MODEL AND AGGREGATION QUERY ALGORITHM

作　　者：张晓琳[1] 崔光月[1] 刘立新[1] 霍伟[1] 

机构地区：[1]内蒙古科技大学信息工程学院,内蒙古包头014010

出　　处：《计算机应用与软件》2014年第1期14-17,共4页Computer Applications and Software

基　　金：国家自然科学基金项目(61163015);内蒙古自然科学基金项目(20080404Zd21)

摘　　要：提出一种基于p-文档的连续不确定XML数据模型,支持多维连续随机变量的不确定XML数据表示。提出高效的XML聚集算法,既支持XPath表达式,又能够根据不同类型的连续函数选择合适的聚集方法。实验结果表明,该算法能够有效地处理支持多维连续不确定XML数据的聚集查询,并且具有很好的可扩展性。We present a p-document-based continuous uncertain XML data model. It supports the representation of uncertain XML data with multi-dimensional continuous random variables. We also present an efficient XML aggregation algorithm. It supports the XPath expression and selects appropriate aggregation method according to different types of continuous function. Experimental results show that this algorithm can effectively process the aggregation query supporting the multi-dimensional continuous XML data, and has very good scalability.

关 键 词：数据模型 多维连续不确定XML聚集 

分 类 号：TP392[自动化与计算机技术—计算机应用技术]