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With the broad development of the World Wide Web, various kinds of heterogeneous data (including multimedia data) are now available to decision support tasks. A data warehousing approach is often adopted to prepare data for relevant analysis. Data integration and dimensional modeling indeed allow the creation of appropriate analysis contexts. However, the existing data warehousing tools are wellsuited to classical, numerical data. They cannot handle complex data. In our approach, we adapt thedoi:10.1007/s10898-006-9064-6 fatcat:3j7a775airddbdnbym2wrkrsky