Enviaments recents

  • A multi-projector CAVE system with commodity hardware and gesture-based interaction 

    Andújar Gran, Carlos Antonio; Brunet Crosa, Pere; Vinacua Pla, Álvaro; Vico Moya, Miguel Ángel; Díaz García, Jesús (2017-01-12)
    Report de recerca
    Accés obert
    Spatially-immersive systems such as CAVEs provide users with surrounding worlds by projecting 3D models on multiple screens around the viewer. Compared to alternative immersive systems such as HMDs, CAVE systems are a ...
  • h-graphs: A new representation for tree decompositions of graphs 

    Hidalgo Garcia, Marta; Joan Arinyo, Robert (2014)
    Report de recerca
    Accés obert
    In geometric constraint solving, well constrained geometric problems can be abstracted as Laman graphs. If the graph is tree decomposable, the constraint-based geometric problem can be solved by a Decomposition-Recombination ...
  • Firefighting as a Game 

    Álvarez Faura, M. del Carme; Blesa Aguilera, Maria Josep; Molter, Hendrik (2014)
    Report de recerca
    Accés obert
    The Firefighter Problem was proposed in 1995 [16] as a deterministic discrete-time model for the spread (and containment) of a fire. Its applications reach from real fires to the spreading of deseases and the containment ...
  • A graph-semantics of business configurations 

    Fiadeiro, José Luiz; Mylonakis Pascual, Nicolás; Orejas Valdés, Fernando (2014)
    Report de recerca
    Accés obert
    In this paper we give graph-semantics to a fundamental part of the semantics of the service modeling language SRML. To achieve this goal we develop a new graph transformation system for what we call 2-level symbolic graphs. ...
  • On tree decomposability of Henneberg graphs 

    Hidalgo, Marta R.; Joan Arinyo, Robert (2014)
    Report de recerca
    Accés obert
    In this work we describe an algorithm that generates well constrained geometric constraint graphs which are solvable by the tree-decomposition constructive technique. The algorithm is based on Henneberg constructions and ...
  • Similarity networks for classification: a case study in the Horse Colic problem 

    Belanche Muñoz, Luis Antonio; Hernández González, Jerónimo (2014)
    Report de recerca
    Accés obert
    This paper develops a two-layer neural network in which the neuron model computes a user-defined similarity function between inputs and weights. The neuron transfer function is formed by composition of an adapted logistic ...
  • Orientation, sphericity and roundness evaluation of particles using alternative 3D representations 

    Cruz Matías, Irving; Ayala Vallespí, M. Dolors (2014)
    Report de recerca
    Accés obert
    Sphericity and roundness indices have been used mainly in geology to analyze the shape of particles. In this paper, geometric methods are proposed as an alternative to evaluate the orientation, sphericity and roundness ...
  • Towards automatic construction of domain ontologies: Application to ISA88 and assessment 

    Farreres de la Morena, Xavier; Graells Sobré, Moisès; Rodríguez Hontoria, Horacio; Espuña Camarasa, Antonio (2013)
    Report de recerca
    Accés obert
    Process Systems Engineering has shown a growing interest on ontologies to develop knowledge models, organize information, and produce software accordingly. Although software tools supporting the structure of ontologies ...
  • Combining Wikipedia and WordNet for improving domain terms compilation 

    Vivaldi, Jorge; Rodríguez Hontoria, Horacio; Rigau Claramunt, German (2013)
    Report de recerca
    Accés obert
    Domain terms are a useful mean for tuning both resources and NLP processors to domain specific tasks. This paper proposes an improved method for obtaining terms from potentially any domain using the Wikipedia graph structure ...
  • A practical and robust method to compute the boundary of three-dimensional axis-aligned boxes 

    López Monterde, Daniel; Martínez Bayona, Jonas; Vigo Anglada, Marc; Pla García, Núria (2013)
    Report de recerca
    Accés obert
    The union of axis-aligned boxes results in a constrained structure that is advantageous for solving certain geometrical problems. A widely used scheme for solid modelling systems is the boundary representation (Brep). We ...

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