Now showing items 1-9 of 9

  • Characterization of database dependencies with FCA and pattern structures 

    Baixeries i Juvillà, Jaume; Kaytoue, Mehdi; Napoli, Amedeo (Springer International Publishing, 2014-04-12)
    Part of book or chapter of book
    Restricted access - publisher's policy
    In this review paper, we present some recent results on the characterization of Functional Dependencies and variations with the formalism of Pattern Structures and Formal Concept Analysis. Although these dependencies ...
  • Characterization of order-like dependencies with formal concept analysis 

    Codocedo, Victor; Baixeries i Juvillà, Jaume; Kaytoue, Mehdi; Napoli, Amedeo (2011)
    Conference report
    Open Access
    Functional Dependencies (FDs) play a key role in many fields of the relational database model, one of the most widely used database systems. FDs have also been applied in data analysis, data quality, knowl- edge discovery ...
  • characterization of order-like dependencies with formal concept analysis 

    Baixeries i Juvillà, Jaume; Napoli, Amedeo; Kaytoue, Mehdi; Codecedo, Victor (2016)
    Conference report
    Open Access
    Functional Dependencies (FDs) play a key role in many fields of the relational database model, one of the most widely used database systems. FDs have also been applied in data analysis, data quality, knowledge discovery ...
  • Characterizing approximate-matching dependencies in formal concept analysis with pattern structures 

    Baixeries i Juvillà, Jaume; Codocedo, Victor; Kaytoue, Mehdi; Napoli, Amedeo (2018-04-26)
    Article
    Open Access
    Functional dependencies (FDs) provide valuable knowledge on the relations between attributes of a data table. A functional dependency holds when the values of an attribute can be determined by another. It has been shown ...
  • Characterizing covers of functional dependencies using FCA 

    Codocedo, Victor; Baixeries i Juvillà, Jaume; Kaytoue, Mehdi; Napoli, Amedeo (2018)
    Conference report
    Open Access
    Functional dependencies (FDs) can be used for various important operations on data, for instance, checking the consistency and the quality of a database (including databases that contain complex data). Consequently, a ...
  • Characterizing functional dependencies in formal concept analysis with pattern structures 

    Baixeries i Juvillà, Jaume; Kaytoue, Mehdi; Napoli, Amedeo (2014-01-29)
    Article
    Restricted access - publisher's policy
    Computing functional dependencies from a relation is an important database topic, with many applications in database management, reverse engineering and query optimization. Whereas it has been deeply investigated in those ...
  • Computing Functional Dependencies with Pattern Structures 

    Baixeries i Juvillà, Jaume; Kaytoue, Mehdi; Napoli, Amedeo (2012)
    Conference report
    Open Access
    The treatment of many-valued data with FCA has been achieved by means of scaling. This method has some drawbacks, since the size of the resulting formal contexts depends usually on the number of di erent values that are ...
  • Contributions to the formalization of order-like dependencies using FCA 

    Codocedo, Victor; Baixeries i Juvillà, Jaume; Kaytoue, Mehdi; Napoli, Amedeo (2016)
    Conference report
    Open Access
    Functional Dependencies (FDs) play a key role in many fields of the relational database model, one of the most widely used database systems. FDs have also been applied in data analysis, data quality, knowledge discovery ...
  • Pattern Structures and Concept Lattices for Data Mining and Knowledge Processing 

    Kaytoue, Mehdi; Codocedo, Victor; Aleksey, Buzmakov; Baixeries i Juvillà, Jaume (Springer International Publishing, 2015)
    Conference report
    Open Access
    This article aims at presenting recent advances in Formal Concept Analysis (2010-2015), especially when the question is dealing with complex data (numbers, graphs, sequences, etc.) in domains such as databases (functional ...