Accessing diverse data comprehensively – CODM, the COSYNA data portal

Accessing Eurostat Data

Accessing Data in Block-Compressed Data Warehouses

The large size of most data warehouses (typically hundreds of gigabytes to terabytes), which results in non-trivial storage costs, makes compression techniques attractive for warehousing environments. In particular, block-level compression (as opposed to attribute or record level schemes) has been shown to achieve the greatest reductions in storage size for databases. A key issue is how to quic...

Data Management with the CCLRC Data Portal

The project aims to provide easy, transparent access to experimental, observational, simulation and visualisation data kept on a multitude of systems and sites. Further more it will provide links to other web/grid services, which will allow the scientists to further use the selected data, e.g. via data mining, simulations or visualisation. The Data Portal will aim to work as a broker between th...

Accessing Diverse Geo-Referenced Data Sources with the SAND Spatial DBMS

The Internet has become the most frequently accessed medium for obtaining various types of data. In particular, government agencies, academic institutions, and private enterprises have published gigabytes of geo-referenced data on the Web. However, to obtain geo-referenced data from the Web successfully, systems must be designed to be capable of understanding the data sets published in differen...

Accessing Data while Preserving Privacy

As organizations struggle with vast amounts of data, outsourcing sensitive data to third parties becomes a necessity. To protect the data, various cryptographic techniques are used in outsourced database systems to ensure data privacy, while allowing efficient querying. Recent attacks on such systems (e.g., [37, 30]) demonstrate that outsourced database systems must trade-off efficiency and pri...