Un index de jointure pour les entrepôts de données XML

Details Un index de jointure pour les entrepôts de données XML Un index de jointure pour les entrepôts de données XML

2007-07-09

arxiv.org/abs/0707.1304v1

Computer Science

Databases

Scientific paper

XML data warehouses form an interesting basis for decision-support applications that exploit heterogeneous data from multiple sources. However, XML-native database systems currently bear limited performances and it is necessary to research ways to optimize them. In this paper, we propose a new index that is specifically adapted to the multidimensional architecture of XML warehouses and eliminates join operations, while preserving the information contained in the original warehouse. A theoretical study and experimental results demonstrate the efficiency of our index, even when queries are complex.

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