Now showing items 1-20 of 43

  • Acceleració d'algoritmes de clustering mitjançant targetes gràfiques 

    Orrit Palau, Joan (Universitat Politècnica de Catalunya, 2017-06-29)
    Bachelor thesis
    Open Access
    En aquest projecte s'ha estudiat com es comporten diferents algoritmes de clustering amb diferents opotimitzacions de CUDA. Concretament s'han estudiat com funcionen l'algoritme k-means i k-centers amb les optimitzacions ...
  • A fuzzy-based cluster-head selection system for WSNs: a comparison study for static and mobile sensors 

    Barolli, Leonard; Wang, Qi; Kulla, Ellis; Xhafa Xhafa, Fatos; Kamo, Bexhet; Takizawa, Makoto (IEEE Press. Institute of Electrical and Electronics Engineers, 2012)
    Conference report
    Restricted access - publisher's policy
  • Alignment-based trace clustering 

    Chatain, Thomas; Carmona Vargas, Josep; Dongen, Boudewijn F. van (Springer, 2017)
    Conference report
    Open Access
    A novel method to cluster event log traces is presented in this paper. In contrast to the approaches in the literature, the clustering approach of this paper assumes an additional input: a process model that describes the ...
  • Anàlisi clúster de les dades de qualitat de l’aire aplicat a l’àrea metropolitana de Barcelona 

    Mussons Torras, Patrícia (Universitat Politècnica de Catalunya, 2006-10)
    Master thesis (pre-Bologna period)
    Open Access
  • Análisis de la evolución de pequeñas áreas urbanas utilizando análisis cluster y regresiones logísticas: un estudio de caso en Ribadeo (NO de España) 

    García, Andrés M.; Santé, Inés; Crecente, Rafael (Department of Civil Engineering of the University of Coimbra and e-GEO, Research Center in Geography and Regional Planning of the Faculty of Social Sciences and Humanities of the Nova University of Lisbon, 2011-10)
    Conference report
    Open Access
    La necesidad de encontrar soluciones a los problemas derivados del crecimiento urbano ha llevado al desarrollo de metodologías para el análisis de los procesos que lo regulan. Estos procesos son complejos y operan a varias ...
  • Aplicació per l'estudi de dinàmiques de grup en nens de parvulari. 

    Pérez Montaner, Lluís (Universitat Politècnica de Catalunya, 2017-10-23)
    Bachelor thesis
    Open Access
    Es proposa la creació d'una aplicació Android que permeti crear sociogrames a partir d'un procés en que participi un grup d'alumnes. Dita solució mantindrà les dades dels menors de forma segura i guardarà un registre de ...
  • Automatització d'algorismes de clustering i aplicació a dades mèdiques 

    Castro Sampol, Pau (Universitat Politècnica de Catalunya, 2017-10-23)
    Bachelor thesis
    Open Access
    Aquest projecte tracta d'automatitzar l'anàlisi de clustering utilitzant diverses tècniques. Per a justificar el correcte funcionament del treball el probe amb diversos jocs de dades.
  • Characterization of local wind patterns in complex mountain valleys 

    Pérez Foguet, Agustí (John Wiley & Sons, 2014-05)
    Article
    Open Access
    In this work, the wind patterns in high mountain areas with complex orography are characterized using hourly data provided by a network of weather stations. The key novelty of the study is the methodology. Data are grouped ...
  • Characterization of the clustering phase transition of a complex network embedded in a hyperbolic plane 

    Colomer de Simón, Pol (Universitat Politècnica de Catalunya, 2011-09-22)
    Master thesis
    Open Access
    English: If we distribute nodes homogeneously in an hyperbolic plane and connect each possible pair of nodes with a probability that depends on the hyperbolic distance among them, heterogeneous degree distributions and ...
  • Characterization of the CPAP-treated patient population in Catalonia 

    Turino, Cecilia; Bertrán, Sandra; Gavaldà Mestre, Ricard; Teixidó, Ivan; Woehrle, Holger; Rué, Montserrat; Solsona, Francesc; Escarrabill, Joan; Colls, Cristina; García Altés, Anna; Batlle, Jordi de; Sánchez de la Torre, Manuel; Barbé, Ferran (2017-09-21)
    Article
    Open Access
    There are different phenotypes of obstructive sleep apnoea (OSA), many of which have not been characterised. Identification of these different phenotypes is important in defining prognosis and guiding the therapeutic ...
  • Discovering hidden pathways in bioinformatics 

    Lisboa, Paulo J.G.; Jarman, Ian H.; Etchells, Terence A.; Chambers, Simon J.; Bacciu, Davide; Whittaker, Joe; Garibaldi, Jon M.; Ortega Martorell, Sandra; Vellido Alcacena, Alfredo; Ellis, Ian O. (Springer, 2012)
    Part of book or chapter of book
    Restricted access - publisher's policy
  • Fog - Applying blockchain to secure a distributed set of clusters 

    Marcer Albareda, Pau (Universitat Politècnica de Catalunya, 2019-07-02)
    Master thesis
    Open Access
    5G has already been presented and shown in major congresses, thus it’s just a matter of time that this technology comes to the enterprise and public usages. Therefore, we can affirm that we are moving towards a world where ...
  • Generalització de mètodes de density-based clustering a dades mixtes 

    Mollá Santiago, Sheila (Universitat Politècnica de Catalunya, 2014-06-10)
    Master thesis (pre-Bologna period)
    Open Access
    El objetivo del proyecto es diseñar, implementar, integrar a KLASS y aplicar métodos de clustering basado en densidades y utilizar datos reales para su estudio. La particularidad que se propone es que se puedan utilizar ...
  • GEVA: geometric variability-based approaches for identifying patterns in data 

    Irigoien, I.; Arenas, Concepción; Fernández Aréizaga, Elena; Mestres, Francisco (2009-10-15)
    Article
    Restricted access - publisher's policy
    This paper, arising from population studies, develops clustering algorithms for identifying patterns in data. Based on the concept of geometric variability, we have developed one polythetic-divisive and three agglomerative ...
  • Global optimality in k-means clustering 

    Tîrnauca, Cristina; Gómez Pérez, Domingo; Balcázar Navarro, José Luis; Montaña Arnaiz, José Luis (2018-05-01)
    Article
    Restricted access - publisher's policy
    We study the problem of finding an optimum clustering, a problem known to be NP-hard. Existing literature contains algorithms running in time proportional to the number of points raised to a power that depends on the ...
  • Inducted Concepts From Embbeded Classes For Automatic Interpretation In Hierarchical Clustering 

    Lozano Hontecillas, Esther (Universitat Politècnica de Catalunya, 2009-06-22)
    Master thesis
    Open Access
    In very complex and unstructured domains, the Intelligent Decision Support Systems become very important tools for the expert, since allow to manage a quantity of information in a way that would be impossible to do manually. ...
  • Inferring program structure from execution traces 

    Martínez Vera, Juan Francisco (Universitat Politècnica de Catalunya, 2018-04-16)
    Master thesis
    Open Access
    Covenantee:  Barcelona Supercomputing Centre
    Application structure detection problem have been typical solved by means of sequential pattern mining techniques but they present to be difficultly scalable. In this thesis we propose a new approach for HPC apps facing ...
  • Influencing factors in energy use of housing blocks: a new methodology, based on clustering and energy simulations, for decision making in energy refurbishment projects 

    Cipriano Lindez, Xavier; Vellido Alcacena, Alfredo; Cipriano Lindez, Jordi; Martí Herrero, Jaime; Danov, Stoyan (2017-04-01)
    Article
    Open Access
    In recent years, big efforts have been dedicated to identify which are the factors with highest influence in the energy consumption of residential buildings. These factors include aspects such as weather dependence, user ...
  • Integrating clinicians, knowledge and data: expert-based cooperative analysis in healthcare decision support 

    Gibert, Karina; García Alonso, Carlos; Salvador Carulla, Luis (2010-10-16)
    Article
    Open Access
    Background: Decision support in health systems is a highly difficult task, due to the inherent complexity of the process and structures involved. Method: This paper introduces a new hybrid methodology Expert-based Cooperative ...
  • Interpretación automática de clases a partir de la extensión del cuadro termómetro a variables cualitativas a través de KLASS 

    Ávila Montalvo, Johnny Javier (Universitat Politècnica de Catalunya, 2018-06-25)
    Master thesis
    Open Access
    Este proyecto propone una exención para el software de minería de datos Java-KLASS con el fin de generalizar la herramienta de termómetros a variables cualitativas. De igual forma se describe el procedimiento para la ...