Enviaments recents

  • Approximating the schema of a set of documents by means of resemblance 

    Abelló Gamazo, Alberto; Palol, Xavier de; Hacid, Mohand-Saïd (Springer, 2018-06-02)
    Article
    Accés restringit per política de l'editorial
    The WWW contains a huge amount of documents. Some of them share the same subject, but are generated by different people or even by different organizations. A semi-structured model allows to share documents that do not have ...
  • Interactive multidimensional modeling of linked data for exploratory OLAP 

    Gallinucci, Enrico; Golfarelli, Matteo; Rizzi Bach, Stefano; Abelló Gamazo, Alberto; Romero Moral, Óscar (Elsevier, 2018-09)
    Article
    Accés restringit per política de l'editorial
    Exploratory OLAP aims at coupling the precision and detail of corporate data with the information wealth of LOD. While some techniques to create, publish, and query RDF cubes are already available, little has been said ...
  • Sistema cooperativo para la integración de fuentes heterogéneas de información y almacenes de datos 

    Samos, J; Abelló Gamazo, Alberto; Oliva, M; Rodríguez González, María Elena; Saltor Soler, Félix Enrique; Sistac Planas, Jaume; Araque, F; Delgado, C; Garvi, E; Ruiz, E (Asociación de Técnicos de Informática, 1999-11)
    Article
    Accés obert
    En este trabajo se presenta nuestra propuesta de creación de un prototipo de sistema cooperativo para la integración de fuentes heterogéneas de información y almacenes de datos en el cual se centran actualmente nuestras ...
  • An integration-oriented ontology to govern evolution in big data ecosystems 

    Nadal Francesch, Sergi; Romero Moral, Óscar; Abelló Gamazo, Alberto; Vassiliadis, Panos; Vansummeren, Stijn (2018-02-02)
    Article
    Accés restringit per política de l'editorial
    Big Data architectures allow to flexibly store and process heterogeneous data, from multiple sources, in their original format. The structure of those data, commonly supplied by means of REST APIs, is continuously evolving. ...
  • Requirements engineering and continuous deployment 

    Niu, Nan; Brinkkemper, Sjaak; Franch Gutiérrez, Javier; Partanen, Jari; Savolainen, Juha (2018-03-01)
    Article
    Accés obert
    This article summarizes the RE in the Age of Continuous Deployment panel at the 25th IEEE International Requirements Engineering Conference. It highlights two synergistic points (user stories and linguistic tooling) and ...
  • SACRE: Supporting contextual requirements’ adaptation in modern self-adaptive systems in the presence of uncertainty at runtime 

    Zavala, Edith; Franch Gutiérrez, Javier; Marco Gómez, Jordi; Knauss, Alessia; Damian, Daniela (2018-05-15)
    Article
    Accés restringit per política de l'editorial
    Runtime uncertainty such as unpredictable resource unavailability, changing environmental conditions and user needs, as well as system intrusions or faults represents one of the main current challenges of self-adaptive ...
  • Open source software ecosystems : a systematic mapping 

    Franco Bedoya, Óscar Hernán; Ameller, David; Costal Costa, Dolors; Franch Gutiérrez, Javier (2017-11-01)
    Article
    Accés restringit per política de l'editorial
    Context: Open source software (OSS) and software ecosystems (SECOs) are two consolidated research areas in software engineering. OSS influences the way organizations develop, acquire, use and commercialize software. SECOs ...
  • Desenvolupament d’aplicacions web 

    Farré Tost, Carles (Institut d'Estudis Catalans (IEC), 2017-06)
    Article
    Accés obert
    Aquest article pretén aportar una visió panoràmica del desenvolupament de les aplicacions web i, en particular, donar a conèixer algunes de les tècniques, eines i metodologies que usen els professionals que s’hi dediquen. ...
  • Intelligent assistance for data pre-processing 

    Bilalli, Besim; Abelló Gamazo, Alberto; Aluja Banet, Tomàs; Wrembel, Robert (Elsevier, 2017-06-03)
    Article
    Accés restringit per política de l'editorial
    A data mining algorithm may perform differently on datasets with different characteristics, e.g., it might perform better on a dataset with continuous attributes rather than with categorical attributes, or the other way ...
  • On the predictive power of meta-features in OpenML 

    Bilalli, Besim; Abelló Gamazo, Alberto; Aluja Banet, Tomàs (2017-12-20)
    Article
    Accés obert
    The demand for performing data analysis is steadily rising. As a consequence, people of different profiles (i.e., non-experienced users) have started to analyze their data. However, this is challenging for them. A key step ...
  • Frequent patterns in ETL workflows: An empirical approach 

    Theodorou, Vasileios; Abelló Gamazo, Alberto; Thiele, Maik; Lehner, Wolfgang (Elsevier, 2017-09-05)
    Article
    Accés restringit per política de l'editorial
    The complexity of Business Intelligence activities has driven the proposal of several approaches for the effective modeling of Extract-Transform-Load (ETL) processes, based on the conceptual abstraction of their operations. ...
  • 3LConOnt: a three-level ontology for context modelling in context-aware computing 

    Cabrera Bejar, Oscar Jair; Franch Gutiérrez, Javier; Marco Gómez, Jordi (2017-08-16)
    Article
    Accés restringit per política de l'editorial
    Context-aware computing is the ability of Services and applications to adapt and react to context changes. Context modelling is a core feature of context-aware computing. Although a lot of research has been made in the ...

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