Recent Submissions

  • Quarry: A user-centered big data integration platform 

    Jovanovic, Petar; Nadal Francesch, Sergi; Romero Moral, Óscar; Abelló Gamazo, Alberto; Bilalli, Besim (2020-04-18)
    Article
    Restricted access - publisher's policy
    Obtaining valuable insights and actionable knowledge from data requires cross-analysis of domain data typically coming from various sources. Doing so, inevitably imposes burdensome processes of unifying different data ...
  • TopoGraph: an end-to-end framework to build and analyze graph cubes 

    Ghrab, Amine; Romero Moral, Óscar; Skhiri, Sabri; Zimányi, Esteban (2020-03-20)
    Article
    Restricted access - publisher's policy
    Graphs are a fundamental structure that provides an intuitive abstraction for modeling and analyzing complex and highly interconnected data. Given the potential complexity of such data, some approaches proposed extending ...
  • Keeping the data lake in form: proximity mining for pre-filtering schema matching 

    Al-serafi, Ayman Mounir Mohamed; Abelló Gamazo, Alberto; Romero Moral, Óscar; Calders, Toon (2020-05)
    Article
    Open Access
    Data Lakes (DLs) are large repositories of raw datasets from disparate sources. As more datasets are ingested into a DL, there is an increasing need for efficient techniques to profile them and to detect the relationships ...