Recent Submissions

  • Transport analytics approaches to the dynamic origin-destination estimation problem 

    Ros Roca, Xavier; Montero Mercadé, Lídia; Barceló Bugeda, Jaime; Noëkel, Klaus; Gentile, Guido (2020-10)
    External research report
    Restricted access - author's decision
    Dynamic traffic models require dynamic inputs, and one of the main inputs are the Dynamic Origin-Destinations (OD) matrices describing the variability over time of the trip patterns across the network. The Dynamic OD Matrix ...
  • An algorithm for the microaggregation problem using column generation 

    Gentile, Claudio; Spagnolo Arrizabalaga, Enric; Castro Pérez, Jordi (2020-06)
    External research report
    Open Access
    The field of Statistical Disclosure Control aims at reducing the risk of re-identification of an individualwhen disseminating data, and it is one of the main concerns of national statistical agencies. OperationsResearch ...
  • KLASS: estudi d'un sistema d'ajuda al tractament estadístic de grans bases de dades (Master Thesis) 

    Gibert, Karina (1991-03)
    External research report
    Open Access
  • Introducing spaced mosaic plots 

    Fernández Martínez, Daniel; Arnold, Richard; Pledger, Shirley (2014-09-01)
    External research report
    Open Access
    Recent research has developed a group of likelihood-based finite mixture mod- els for a data matrix with ordinal data, establishing likelihood-based multivari- ate methods which applies fuzzy clustering via finite mixtures ...
  • Un compilador per l'UPCLISP 

    Riaño Ramos, David; Gibert, Karina; Torra Reventos, Vicenc; Cortés García, Claudio Ulises (1990)
    External research report
    Open Access
    El report recull el desenvolupament d'un compilador per a una versió de LISP pròpia de la UPC, l'UPCLISP. El procés de compilació va prenent una a una les funcions i després per a cadascuna d'elles fa una anàlisi de tipus ...
  • A new interior-point approach for large two-stage stochastic problems 

    Castro Pérez, Jordi; Lama Zubirán, Paula de la (2020-04)
    External research report
    Open Access
    Two-stage stochastic models give rise to very large optimization problems. Several approaches havebeen devised for efficiently solving them, including interior-point methods (IPMs). However, usingIPMs, the linking columns ...
  • Using interior point solvers for optimizing progressive lens models with spherical coordinates 

    Casanellas Peñalver, Glòria; Castro Pérez, Jordi (2019-05)
    External research report
    Open Access
    Designing progressive lenses is a complex problem that has beenpreviously solved by formulating an optimization model based on Cartesiancoordinates. In this work a new progressive lens model using spherical co-ordinates ...
  • An assigment free data driven approach to the dynamic origin destination matrix estimation problem 

    Ros Roca, Xavier; Barceló Bugeda, Jaime; Montero Mercadé, Lídia (2020-02-05)
    External research report
    Open Access
    Dynamic traffic models require dynamic inputs, and one of the main inputs are the Dynamic Origin-Destinations (OD) matrices describing the variability over time of the trip patterns across the network. The Dynamic OD Matrix ...
  • Simulació de la mobilitat pel pas del tramvia per l’avinguda Diagonal (Francesc Macià – Pl. de les Glòries) 

    Rosell Camps, Francisca; Rodero, Francisco; Saurí Marchán, Sergi (2017-05)
    External research report
    Open Access
    L’1 de març de 2016, l’Ajuntament de Barcelona i la Generalitat van signar el protocol de col·laboració per impulsar la connexió de les dues xarxes de tramvia, que estableix que l’Ajuntament determinarà el traçat de la ...
  • A specialized interior-point algorithm for huge minimum convex cost flows in bipartite networks 

    Castro Pérez, Jordi; Nasini, Stefano (2019-01-28)
    External research report
    Open Access
    The computation of the Newton direction is the most time consuming step of interior-point methods. This direction was efficiently computed by a combination of Cholesky factorizations and conjugate gradients in a specialized ...
  • MEET-UP: Suport als estudiants amb TEA en estadis inicials a la UPC 

    Gracia, Mireia; López Álvarez, David; Montero Mercadé, Lídia; Mampel, Sergi; Radó, Natalia; Vilalta, Montserrat (2019-01-22)
    External research report
    Open Access
    L’objectiu és posar en marxa un pilot anomenat Meet-Up per acollir a partir del Juliol del 2017 a nous estudiants de la UPC afectats de TEA, mitjançant una sessió d’acollida inicial, amb explicació de la plataforma Moodle ...
  • Notes on the measure of the structural similarity of OD matrices 

    Ros-Roca, Xavier; Montero Mercadé, Lídia; Barceló Bugeda, Jaume (2018-12-07)
    External research report
    Open Access

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