Horizontal Partitioning has been largely adopted by the database community, where it took a
significant part in the physical design process. Actually, it is supported by most commercial …

Nous visons à travers cette thèse à proposer un ensemble d'approches permettant
d'optimiser les entrepôts de données et d'aider l'AED à bien mener cette optimisation. Nos …

One of the fundamental tasks that data warehouse (DW) administrator needs to perform
during the physical design is to select the right indexes to speed up her/his queries. Two …

This paper deals with the problem of integrated physical database design involving two
optimization techniques: horizontal data partitioning (HDP) and bitmap join indexes (BJI) …

Data warehousing is the crucial part of business intelligence applications. The data
warehouse physical design is a hard task due to a large number of possible choices …

Decision systems handle a large volume of data usually stored in a data warehouse. The
latter is modeled by a star schema that typically has a central fact table and a set of …

The advancement of next generation sequencing (NGS) and shotgun sequencing
technologies produced massive amounts of genomics data. Metagenomics, a powerful …

Today's common consensus is that the world's most valuable resource is no longer oil but
data. But, like oil, data is a source of pollution, mainly caused by the processing of extensive …

Bitmap join indexes are designed to prejoin the facts and dimension tables in data
warehouses modeled by a star schema. They are defined on the fact table using attributes …

Data warehouses are very large databases usually designed using the star schema.
Queries defined on data warehouses are generally complex due to join operations involved …