A data warehouse is a collection of historical data exploited by decision-support applications. It centralizes data of interest for a group of users so data acccess is fast, inexpensive and effective. In this work, we are interested in the evolution of data warehouses supporting multidimennsional data analysis applications. We propose an infrastructure to build warehouse managers that enable the creation and the evolution of data warehouses. A warehouse manager enables the creation of the schema of a data warcehouse and provides the means to modify this schema. It also offerd tools to build the warehouse from data coming from multiple heterogeneous and autonomous sources. It is basedd on a multidimensional data model that allows to manipula...
A Data Warehouse (DW) is a database that stores information oriented to satisfy decision-making requ...
A data warehouse facilitates the integration of disparate operational databases in an enterprise int...
Dans cette thèse, nous proposons une solution pour la personnalisation des analyses dans les entrepô...
A data warehouse is a collection of historical data exploited by decision-support applications. It c...
Data warehouses integrate information coming from different data sources which are often heterogeneo...
This thesis has been done in collaboration with the bank LCL-Le Credit Lyonnais. It deals with the e...
National audienceNowadays, decisional systems have became a significant research topic in databases....
A Data warehouse (DW) is characterized by a complex architecture, designed in order to integrate dat...
Data warehouse systems integrate data from heterogeneous sources. These sources are autonomous in na...
The Data Foundry research project at LLNL is investigating data warehousing in highly dynamic scient...
Data warehouses form the basis of decision-support systems. They help integrating the production dat...
Over the past decade, the concept of data warehousing has been widely accepted. The main reason for ...
Developing a data warehouse is an ongoing task where new requirements are constantly being added. A ...
Data warehouses are being used in many applications since quite a long time. Traditionally, new data...
The main goal of data warehouses is to facilitate decision making. In order to satisfy the whole ana...
A Data Warehouse (DW) is a database that stores information oriented to satisfy decision-making requ...
A data warehouse facilitates the integration of disparate operational databases in an enterprise int...
Dans cette thèse, nous proposons une solution pour la personnalisation des analyses dans les entrepô...
A data warehouse is a collection of historical data exploited by decision-support applications. It c...
Data warehouses integrate information coming from different data sources which are often heterogeneo...
This thesis has been done in collaboration with the bank LCL-Le Credit Lyonnais. It deals with the e...
National audienceNowadays, decisional systems have became a significant research topic in databases....
A Data warehouse (DW) is characterized by a complex architecture, designed in order to integrate dat...
Data warehouse systems integrate data from heterogeneous sources. These sources are autonomous in na...
The Data Foundry research project at LLNL is investigating data warehousing in highly dynamic scient...
Data warehouses form the basis of decision-support systems. They help integrating the production dat...
Over the past decade, the concept of data warehousing has been widely accepted. The main reason for ...
Developing a data warehouse is an ongoing task where new requirements are constantly being added. A ...
Data warehouses are being used in many applications since quite a long time. Traditionally, new data...
The main goal of data warehouses is to facilitate decision making. In order to satisfy the whole ana...
A Data Warehouse (DW) is a database that stores information oriented to satisfy decision-making requ...
A data warehouse facilitates the integration of disparate operational databases in an enterprise int...
Dans cette thèse, nous proposons une solution pour la personnalisation des analyses dans les entrepô...