Author :
Wang, Hongzhi ; Li, Jianzhong ; He, Zhenying ; Gao, Hong
Abstract :
XML is an important standard of information exchange and representation on the Web. Analysis of data on the Web requires data analysis techniques of XML data. With tags representing semantics, XML data has more complex structure than relational database. Therefore, analysis of XML data can be more flexible. In this paper, concepts of XOLAP, OLAP of XML data, are presented. In order to supporting XOLAP, a general aggregation operator of XML, GXaggregation, is presented. Based on GXaggregation, XCube, an extension of tradition cube operator, is defined on XML data model. These operators can be embedded into XML query languages such as XQuery. In this paper, definitions and expressions operators related to XOLAP are presented, as well as a primary implementation of GXaggregation and XCube
Keywords :
XML; data analysis; data mining; GXaggregation operator; Internet; OLAP; XCube operator; XML; data analysis; data mining; information exchange; query language; Atomic measurements; Computer science; Data analysis; Data models; Database languages; Helium; Information representation; Information technology; Relational databases; XML; GXaggregation; OLAP; XCube; XML;
