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Xml data warehouse: modelling and querying.
| Content Provider | CiteSeerX |
|---|---|
| Author | Pokorny, Jaroslav |
| Abstract | A large amount of heterogeneous information is now available in enterprises. Some their data sources are repositories of XML data or they are viewed as XML data independently on their inner implementation. In this paper, we study the foundations of XML data warehouses. We adapt the traditional star schema with explicit dimension hierarchies for XML environment. We propose the notion of XML-referential integrity for handling XML-dimension hierarchies. For querying XML data warehouses, we introduce an operation semijoin based on approximate matching XML data and discuss its effective evaluation. 1 |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Operation Semijoin Large Amount Xml Data Warehouse Xml-dimension Hierarchy Xml Environment Xml Data Explicit Dimension Hierarchy Inner Implementation Data Source Traditional Star Schema Effective Evaluation Heterogeneous Information Approximate Matching Xml Data Xml-referential Integrity |
| Content Type | Text |
