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arXiv · 0809.1981

A Join Index for XML Data Warehouses

Hadj Mahboubi·Kamel Aouiche·Jérôme Darmont
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Abstract

XML data warehouses form an interesting basis for decision-support applications that exploit complex data. However, native-XML database management systems (DBMSs) currently bear limited performances and it is necessary to research for ways to optimize them. In this paper, we propose a new join index that is specifically adapted to the multidimensional architecture of XML warehouses. It eliminates join operations while preserving the information contained in the original warehouse. A theoretical study and experimental results demonstrate the efficiency of our join index. They also show that native XML DBMSs can compete with XML-compatible, relational DBMSs when warehousing and analyzing XML data.

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Hadj Mahboubi, Kamel Aouiche, Jérôme Darmont. 2008-09-11. A Join Index for XML Data Warehouses. https://arxiv.org/abs/0809.1981

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