Enviaments recents

  • Ring oscillator clocks and margins 

    Cortadella Fortuny, Jordi; Lupon Navazo, Marc; Moreno Vega, Alberto; Roca Pérez, Antoni; Sapatnekar, Sachin (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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    How much margin do we have to add to the delay lines of a bundled-data circuit? This paper is an attempt to give a methodical answer to this question, taking into account all sources of variability and the existing EDA ...
  • Discovering duplicate tasks in transition systems for the simplification of process models 

    San Pedro Martín, Javier de; Cortadella Fortuny, Jordi (Springer, 2016)
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    Accés restringit per política de l'editorial
    This work presents a set of methods to improve the understandability of process models. Traditionally, simplification methods trade off quality metrics, such as fitness or precision. Conversely, the methods proposed in ...
  • MapReduce vs. pipelining counting triangles 

    Pasarella Sánchez, Ana Edelmira; Vidal Serodio, Maria Esther; Zoltan, Cristina (CEUR-WS.org, 2016)
    Text en actes de congrés
    Accés obert
    In this paper we follow an alternative approach named pipeline, to implement a parallel implementation of the well-known problem of counting triangles in a graph. This problem is especially interesting either when the input ...
  • Security-sensitive tackling of obstructed workflow executions 

    Holderer, Julius; Carmona Vargas, Josep; Müller, Günter (CEUR-WS.org, 2016)
    Text en actes de congrés
    Accés obert
    Imposing access control onto workflows considerably reduces the set of users authorized to execute the workflow tasks. Further constraints (e.g. Separation of Duties) as well as unexpected unavailabilty of users may finally ...
  • De Menos a Distinto: Estudio de la Implantación de R en las asignaturas del grado de estadística 

    Baixeries i Juvillà, Jaume; Fairén González, Marta; Gabarró Vallès, Joaquim; Pasarella Sánchez, Ana Edelmira (2016)
    Text en actes de congrés
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    Teaching computer science in degrees that are not computer science related presents an important challenge: to motivate the students and to achieve good average grades. The student’s complaint is always based ...
  • Incorporating negative information in process discovery 

    Ponce de León, Hernán; Carmona Vargas, Josep; vanden Broucke, Seppe (Springer, 2015)
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    Accés restringit per política de l'editorial
    The discovery of a formal process model from event logs describing real process executions is a challenging problem that has been studied from several angles. Most of the contributions consider the extraction of a model ...
  • Log-based simplification of process models 

    San Pedro Martín, Javier de; Carmona Vargas, Josep; Cortadella Fortuny, Jordi (Springer, 2015)
    Text en actes de congrés
    Accés obert
    The visualization of models is essential for user-friendly human-machine interactions during Process Mining. A simple graphical representation contributes to give intuitive information about the behavior of a system. ...
  • Can frogs find large independent sets in a decentralized way? Yes they can! 

    Blum, Christian; Blesa Aguilera, Maria Josep; Calvo, Borja (Springer, 2014)
    Text en actes de congrés
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    The problem of identifying a maximal independent (node) set in a given graph is a fundamental problem in distributed computing. It has numerous applications, for example, in wireless networks in the context of facility ...
  • Reactive clocks with variability-tracking jitter 

    Cortadella Fortuny, Jordi; Lavagno, Luciano; López Muñoz, Pedro; Lupon Navazo, Marc; Moreno Vega, Alberto; Roca Pérez, Antoni; Sapatnekar, Sachin S. (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Text en actes de congrés
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    The growing variability in nanoelectronic devices, due to uncertainties from the manufacturing process and environmental conditions (power supply, temperature, aging), requires increasing design guardbands, forcing circuits ...
  • Uncertainty in the cloud: an angel-daemon approach to modelling performance 

    Stewart, Alan; Gabarró Vallès, Joaquim; Keenan, Anthony (Springer, 2015)
    Text en actes de congrés
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    Uncertainty profiles are used to study the effects of contention within cloud and service-based environments. An uncertainty profile provides a qualitative description of an environment whose quality of service (QoS) may ...

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