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20022009
most citedLeptogenesis

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cs.DB2009

Enhancing XML Data Warehouse Query Performance by Fragmentation

Hadj Mahboubi, Jérôme Darmont

XML data warehouses form an interesting basis for decision-support applications that exploit heterogeneous data from multiple sources. However, XML-native database systems currentl…

cs.DB2008

Data Mining-based Fragmentation of XML Data Warehouses

Hadj Mahboubi, Jérôme Darmont

With the multiplication of XML data sources, many XML data warehouse models have been proposed to handle data heterogeneity and complexity in a way relational data warehouses fail…

cs.DB20082 cited

Expressing OLAP operators with the TAX XML algebra

Marouane Hachicha, Hadj Mahboubi, Jérôme Darmont

With the rise of XML as a standard for representing business data, XML data warehouses appear as suitable solutions for Web-based decision-support applications. In this context, it…

cs.DB20083 cited

Knowledge and Metadata Integration for Warehousing Complex Data

Jean-Christian Ralaivao, Jérôme Darmont

With the ever-growing availability of so-called complex data, especially on the Web, decision-support systems such as data warehouses must store and process data that are not only…

cs.DB20084 cited

Dynamic index selection in data warehouses

Stéphane Azefack, Kamel Aouiche, Jérôme Darmont

Analytical queries defined on data warehouses are complex and use several join operations that are very costly, especially when run on very large data volumes. To improve response…

cs.DB20074 cited

Data Mining-based Materialized View and Index Selection in Data Warehouses

Kamel Aouiche, Jérôme Darmont

Materialized views and indexes are physical structures for accelerating data access that are casually used in data warehouses. However, these data structures generate some maintena…