817 citations
- Université de MontréalCA17 papers
- University of British ColumbiaCA6 papers
- Center for Astrophysics Harvard & SmithsonianUS5 papers
- Centre National de la Recherche ScientifiqueFR5 papers
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- University of New BrunswickCA5 papers
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- University of ViennaAT5 papers
- Dominion Astrophysical ObservatoryCA3 papers
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Showing 2008 · cs.DBShow all
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cs.DB2008★ 4 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.DB2008
Histogram-Aware Sorting for Enhanced Word-Aligned Compression in Bitmap Indexes
Owen Kaser, Daniel Lemire, Kamel Aouiche
Bitmap indexes must be compressed to reduce input/output costs and minimize CPU usage. To accelerate logical operations (AND, OR, XOR) over bitmaps, we use techniques based on run-…
cs.DB2008
Pruning Attribute Values From Data Cubes with Diamond Dicing
Hazel Webb, Owen Kaser, Daniel Lemire
Data stored in a data warehouse are inherently multidimensional, but most data-pruning techniques (such as iceberg and top-k queries) are unidimensional. However, analysts need to…