Now showing items 1-6 of 6

    • An algebra for OLAP 

      Kuijpers, Bart; Vaisman, Alejandro Ariel (2017)
      "Online Analytical Processing (OLAP) comprises tools and algorithms that allow querying multidimensional databases. It is based on the multidimensional model, where data can be seen as a cube, where each cell contains one ...
    • Efficient analytical queries on semantic web data cubes 

      Etcheverry, Lorena; Vaisman, Alejandro Ariel (2017-12)
      "The amount of multidimensional data published on the semantic web (SW) is constantly increasing, due to initiatives such as Open Data and Open Government Data, among other ones. Models, languages, and tools, that allow ...
    • From conceptual to logical ETL design using BPMN and relational algebra 

      Awiti, Judith; Vaisman, Alejandro Ariel; Zimányi, Esteban (2019)
      "Extraction, transformation, and loading (ETL) processes are used to extract data from internal and external sources of an organization, transform these data, and load them into a data warehouse. The Business Process ...
    • Mobility data warehouses 

      Vaisman, Alejandro Ariel; Zimányi, Esteban (2019)
      "The interest in mobility data analysis has grown dramatically with the wide availability of devices that track the position of moving objects. Mobility analysis can be applied, for example, to analyze traffic flows. To ...
    • Modelado y consulta de data warehouses usando bases de datos de grafo 

      Besteiro, María Florencia; Valverde Melito, Maximiliano Javier (2019-06)
      "El objetivo de este proyecto es poder modelar y consultar un data warehouse usando bases de datos de grafos, de forma de poder comparar la performance del mismo en contraste con su alternativa relacional. Para ello se ...
    • Modelling and querying star and snowflake warehouses using graph databases 

      Vaisman, Alejandro Ariel; Besteiro, María Florencia; Valverde Melito, Maximiliano Javier (2019)
      "In current “Big Data” scenarios, graph databases are increasingly being used. Online Analytical Processing (OLAP) operations can expand the possibilities of graph analysis beyond the traditional graphbased computation. ...