Recent Submissions

  • Language: universals, principles and origins 

    Ferrer Cancho, Ramon (Universitat Politècnica de Catalunya, 2003-12-12)
    Doctoral thesis
    Open Access
    Here, old and new linguistic universals, i.e. properties obeyed by all languages on Earth are investigated. Basic principles of language predicting linguistic universals are also investigated. More precisely, two principles ...
  • Network creation games: structure vs anarchy 

    Messegué Buisan, Arnau (Universitat Politècnica de Catalunya, 2020-12-18)
    Doctoral thesis
    Open Access
    In an attempt to understand how Internet-like network and social networks behave, different models have been proposed and studied throughout history to capture their most essential aspects and properties. Network Creation ...
  • Algorithms for the reconstruction, analysis, repairing and enhancement of 3D urban models from multiple data sources 

    Comino Trinidad, Marc (Universitat Politècnica de Catalunya, 2020-12-22)
    Doctoral thesis
    Open Access
    Over the last few years, there has been a notorious growth in the field of digitization of 3D buildings and urban environments. The substantial improvement of both scanning hardware and reconstruction algorithms has led ...
  • Toward human-like pathfinding with hierarchical approaches and the GPS of the brain theory 

    Rahmani, Vahid (Universitat Politècnica de Catalunya, 2020-11-18)
    Doctoral thesis
    Open Access
    Pathfinding for autonomous agents and robots has been traditionally driven by finding optimal paths. Where typically optimality means finding the shortest path between two points in a given environment. However, optimality ...
  • Enhancing scene text recognition with visual context information 

    Sabir, Ahmed (Universitat Politècnica de Catalunya, 2020-11-10)
    Doctoral thesis
    Open Access
    This thesis addresses the problem of improving text spotting systems, which aim to detect and recognize text in unrestricted images (e.g. a street sign, an advertisement, a bus destination, etc.). The goal is to improve ...
  • An adaptive, fault-tolerant system for road network traffic prediction using machine learning 

    Mena-Yedra, Rafael (Universitat Politècnica de Catalunya, 2020-03-06)
    Doctoral thesis
    Open Access
    This thesis has addressed the design and development of an integrated system for real-time traffic forecasting based on machine learning methods. Although traffic prediction has been the driving motivation for the thesis ...
  • Data analysis through graph decomposition 

    Piceno, Marie Ely (Universitat Politècnica de Catalunya, 2020-07-27)
    Doctoral thesis
    Open Access
    This work is developed within the field of data mining and data visualization. Under the premise that many of the algorithms give as result huge amounts of data impossible to handle for the users, we work with the ...
  • Deep learning architectures applied to wind time series multi-step forecasting 

    Manero Font, Jaume (Universitat Politècnica de Catalunya, 2020-07-14)
    Doctoral thesis
    Open Access
    Forecasting is a critical task for the integration of wind-generated energy into electricity grids. Numerical weather models applied to wind prediction, work with grid sizes too large to reproduce all the local features ...
  • Algorithmic techniques for physical design : macro placement and under-the-cell routing 

    Vidal Obiols, Alexandre (Universitat Politècnica de Catalunya, 2020-01-24)
    Doctoral thesis
    Open Access
    With the increase of chip component density and new manufacturability constraints imposed by modern technology nodes, the role of algorithms for electronic design automation is key to the successful implementation of ...
  • Analysis of partial match queries in multidimensional search trees 

    Lau Laynes-Lozada, Gustavo Salvador (Universitat Politècnica de Catalunya, 2019-11-29)
    Doctoral thesis
    Open Access
    The main contribution of this thesis is to deepen and generalize previous work done in the average-case analysis of partial match queries in several types of multidimensional search trees. In particular, our focus has been ...
  • Document-level machine translation : ensuring translational consistency of non-local phenomena 

    Martínez Garcia, Eva (Universitat Politècnica de Catalunya, 2019-12-19)
    Doctoral thesis
    Open Access
    In this thesis, we study the automatic translation of documents by taking into account cross-sentence phenomena. This document-level information is typically ignored by most of the standard state-of-the-art Machine ...
  • High-precision computation of uniform asymptotic expansions for special functions 

    Navas Palencia, Guillermo (Universitat Politècnica de Catalunya, 2019-07-22)
    Doctoral thesis
    Open Access
    In this dissertation, we investigate new methods to obtain uniform asymptotic expansions for the numerical evaluation of special functions to high-precision. We shall first present the theoretical and computational fundamental ...

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