Enviaments recents

  • POIESIS: A tool for quality-aware ETL process redesign 

    Theodorou, Vasileios; Abelló Gamazo, Alberto; Thiele, Maik; Lehner, Wolfgang (2015)
    Text en actes de congrés
    Accés obert
    We present a tool, called POIESIS, for automatic ETL process enhancement. ETL processes are essential data-centric activities in modern business intelligence environments and they need to be examined through a viewpoint ...
  • Towards information profiling: data lake content metadata management 

    Al-serafi, Ayman Mounir Mohamed; Abelló Gamazo, Alberto; Romero Moral, Óscar; Calders, Toon (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
    Accés obert
    There is currently a burst of Big Data (BD) processed and stored in huge raw data repositories, commonly called Data Lakes (DL). These BD require new techniques of data integration and schema alignment in order to make the ...
  • A machine learning approach for layout inference in spreadsheets 

    Koci, Elvis; Thiele, Maik; Romero Moral, Óscar; Lehner, Wolfgang (SciTePress, 2016)
    Text en actes de congrés
    Accés obert
    Spreadsheet applications are one of the most used tools for content generation and presentation in industry and the Web. In spite of this success, there does not exist a comprehensive approach to automatically extract and ...
  • NOSQL design for analytical workloads: Variability matters 

    Herrero Otal, Víctor; Abelló Gamazo, Alberto; Romero Moral, Óscar (Springer, 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Big Data has recently gained popularity and has strongly questioned relational databases as universal storage systems, especially in the presence of analytical workloads. As result, co-relational alternatives, commonly ...
  • Towards exploratory OLAP on linked data 

    Abelló Gamazo, Alberto; Gallinucci, Enrico; Golfarelli, Matteo; Rizzi Bach, Stefano; Romero Moral, Óscar (2016)
    Text en actes de congrés
    Accés obert
    In the context of exploratory OLAP, coupling the information wealth of linked data with the precision and detail of corporate data can greatly improve the effectiveness of the decision-making process. In this paper we ...
  • The death star challenge: an ambitious and motivating engineering project to promote astronautics and transform society's vision about space research 

    Pérez Poch, Antoni; Sánchez Carracedo, Fermín; López Álvarez, David; Alier Forment, Marc (2016)
    Comunicació de congrés
    Accés obert
    The race to put a person on the Moon motivated and captivated the imagination of USA society and the community worldwide. This led to an unprecedented investment in science, technology and the space program, which ...
  • A learning tool to develop sustainable projects 

    Sánchez Carracedo, Fermín; Cabré Garcia, José M.; Alier Forment, Marc; Vidal López, Eva María; López Álvarez, David; Martín Escofet, Carme; García Almiñana, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Comunicació de congrés
    Accés obert
    This paper presents a tool developed to help engineers to design and develop sustainable projects. The tool has been designed to introduce and evaluate the sustainability of engineering projects in general, but here we ...
  • QB2OLAP : enabling OLAP on statistical linked open data 

    Varga, Jovan; Etcheverry, Lorena; Vaisman, Alejandro; Romero Moral, Óscar; Bach Pedersen, Torben; Thomsen, Christian (2016)
    Text en actes de congrés
    Accés obert
    Publication and sharing of multidimensional (MD) data on the Semantic Web (SW) opens new opportunities for the use of On-Line Analytical Processing (OLAP). The RDF Data Cube (QB) vocabulary, the current standard for ...
  • OSSAP: A situational method for defining open source software adoption processes 

    López Cuesta, Lidia; Costal Costa, Dolors; Ralyté, Jolita; Franch Gutiérrez, Javier; Méndez, Lucía; Annosi, Maria Carmela (Springer, 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Organizations are increasingly becoming Open Source Software (OSS) adopters, either as a result of a strategic decision or just as a consequence of technological choices. The strategy followed to adopt OSS shapes organizations’ ...
  • Big data design 

    Abelló Gamazo, Alberto (Association for Computing Machinery (ACM), 2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    It is widely accepted today that Relational databases are not appropriate in highly distributed shared-nothing archi- tectures of commodity hardware, that need to handle poorly structured heterogeneous data. ...

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