X^ 3: A Cube Operator for XML OLAP

  title={X^ 3: A Cube Operator for XML OLAP},
  author={Nuwee Wiwatwattana and H. V. Jagadish and Laks V. S. Lakshmanan and Divesh Srivastava},
  journal={2007 IEEE 23rd International Conference on Data Engineering},
With increasing amounts of data being exchanged and even generated or stored in XML, a natural question is how to perform OLAP on XML data, which can be structurally heterogeneous (e.g., parse trees) and/or marked-up text documents. A core operator for OLAP is the data cube. While the relational cube can be extended in a straightforward way to XML, we argue such an extension would not address the specific issues posed by XML. While in a relational warehouse, facts are flat records and… CONTINUE READING
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