Results 21 to 30 of about 21,301,259 (161)

Tools for data warehouse quality [PDF]

open access: yesProceedings. Tenth International Conference on Scientific and Statistical Database Management (Cat. No.98TB100243), 2002
We show three interrelated tools intended to improve different aspects of the quality of data warehouse solutions. Firstly, the deductive object manager ConceptBase is intended to enrich the semantics of data warehouse solutions by including an explicit enterprise-centered concept of quality.
Gebhardt, M.   +4 more
openaire   +4 more sources

Pentaho Business Analytics: a Business Intelligence Open Source Alternative [PDF]

open access: yesDatabase Systems Journal, 2012
Most organizations strive to obtain fast, interactive and insightful analytics in order to fundament the most effective and profitable decisions. They need to incorporate huge amounts of data in order to run analysis based on queries and reports with ...
Diana TÂRNĂVEANU
doaj  

Tractor pulling on data warehouses [PDF]

open access: yesProceedings of the Fourth International Workshop on Testing Database Systems, 2011
Robustness of database systems under stress is hard to quantify, because there are many factors involved, most notably the user expectation to perform a job within certain bounds of the user requirements. Nevertheless, robustness of database system is very important to end users.
Kersten, M.L.   +5 more
openaire   +4 more sources

Solutions for improving data extraction from virtual data warehouses [PDF]

open access: yesDatabase Systems Journal, 2010
The data warehousing project’s team is always confronted with low performance in data extraction. In a Business Intelligence environment this problem can be critical because the data displayed are no longer available for taking decisions, so the project ...
Adela BARA
doaj  

Photonic Switching for Data Center Applications

open access: yesIEEE Photonics Journal, 2011
Switching fabrics in data centers that rely on traditional electrical switches face scaling issues in terms of power consumption. Fast optical switches based on a silicon photonics platform can enable the high port speed and high interconnection density ...
L. Chen   +3 more
doaj   +1 more source

Data Warehouse Refreshment

open access: yes, 2007
In the early stages of a data warehouse project, the designers/administrators have to come up with a decision concerning the design and deployment of the back-stage architecture. The possible options are (a) the usage of a commercial ETL tool, or (b) the development of an in-house ETL prototype. Both cases have advantages and disadvantages. However, in
Simitsis, Alkis   +3 more
openaire   +3 more sources

The Importance of Data Warehouses in the Development of Computerized Decision Support Solutions. A Comparison between Data Warehouses and Data Marts [PDF]

open access: yesDatabase Systems Journal, 2016
In the last decade, the amount of data that an organization processes and stores has grown exponentially. In most cases, the data stored is used to support the business process through accurate and up-to-date information about the business environment ...
Alexandru Adrian ŢOLE
doaj  

Discovering new information in bibliographic databases

open access: yesKnjižnica, 2005
Databases contain information that can usually not be revealed by standard query systems. For that purpose, the methods for knowledge discovery from databases can be applied, which enable the user to browse aggregated data, discover trends, produce ...
Emil Hudomalj
doaj   +1 more source

Spatial Data Warehouse Modelling [PDF]

open access: yes, 2008
This chapter is concerned with multidimensional data models for spatial data warehouses. Over the last few years different approaches have been proposed in the literature for modelling multidimensional data with geometric extent. Nevertheless, the definition of a comprehensive and formal data model is still a major research issue.
M.L. Damiani, S. Spaccapietra
openaire   +3 more sources

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