Now showing items 1-20 of 46

  • Achieving timing composability with measurement-based probabilistic timing analysis 

    Kosmidis, Leonidas; Quiñones, Eduardo; Abella Ferrer, Jaume; Vardanega, Tulio; Cazorla Almeida, Francisco Javier (2013)
    Conference report
    Restricted access - publisher's policy
    Probabilistic Timing Analysis (PTA) allows complex hardware acceleration features, which defeat classic timing analysis, to be used in hard real-time systems. PTA can do that because it drastically reduces intrinsic ...
  • An algebraic framework for Diffie-Hellman assumptions 

    Escala Ribas, Alex; Herold, Gottfried; Kiltz, Eike; Ràfols Salvador, Carla; Villar Santos, Jorge Luis (2017-01)
    Article
    Open Access
    We put forward a new algebraic framework to generalize and analyze Di e-Hellman like Decisional Assumptions which allows us to argue about security and applications by considering only algebraic properties. Our D`;k-MDDH ...
  • Automatic differentiation in probabilistic machine learning with variational inference 

    Pou Quirós, Alberto (Universitat Politècnica de Catalunya, 2017-07-06)
    Master thesis
    Open Access
    La era tecnológica que se vive actualmente está dando lugar a cantidades ingentes de información que requieren ser analizadas de forma automática. El machine learning puede ayudar a mitigar esta sobrecarga encontrando patrones ...
  • Bayes linear spaces 

    Van den Boogaart, Karl Gerald; Egozcue, Juan José; Pawlowsky Glahn, Vera (Institut d'Estadística de Catalunya, 2010)
    Article
    Open Access
    Linear spaces consisting of -finite probability measures and infinite measures (improper priors and likelihood functions) are defined. The commutative group operation, called perturbation, is the updating given by Bayes ...
  • BicingStats 

    Carol Campreciós, Alejandro (Universitat Politècnica de Catalunya, 2016-09-14)
    Master thesis (pre-Bologna period)
    Open Access
    Implementació d'un sistema de predicció de l'ocupació de estacions de Bicing i d'una app Android que mostra aquests resultats a l'usuari.
  • Brownian motion: a random walk approximation 

    Gutiérrez Moya, Sergio (Universitat Politècnica de Catalunya, 2018-07)
    Bachelor thesis
    Open Access
    Brownian motion is one of the most used stochastic models in applications to financial mathematics, communications, engineeering, physics and other areas. Many of the central results in the theory are obtained directly ...
  • CFAR data fusion center with inhomogeneous receivers 

    Elias Fusté, Antoni; Broquetas Ibars, Antoni (1992-01)
    Article
    Open Access
    Detection systems with distributed sensors and data fusion are increasingly used by surveillance systems. A system formed by N inhomogeneous constant false alarm rate (CFAR) detectors (cell-averaging (CA) and ordered ...
  • Classifying wave forecasts with model-based geostatistics and the Aitchison distribution 

    Tolosana Delgado, Raimon; Egozcue Rubí, Juan José; Sánchez-Arcilla Conejo, Agustín; Gómez Aguar, Jesús Javier (2010)
    Conference report
    Restricted access - publisher's policy
  • Combining biased randomization with meta-heuristics for solving the multi-depot vehicle routing problem 

    Juan Pérez, Angel Alejandro; Barrios, Barry; González Martín, Sergio; Coccola, Mariana; Faulín, Javier; Bektas, Tolga (2012)
    Conference lecture
    Restricted access - publisher's policy
    This paper proposes a hybrid algorithm, combining Biased-Randomized (BR) processes with an Iterated Local Search (ILS) meta-heuristic, to solve the Multi-Depot Vehicle Routing Problem (MDVRP). Our approach assumes a ...
  • Conditional probabilities of post-release events for hazardous materials pipelines 

    Bubbico, Roberto; Carbone, F; Ramírez Camacho, Jaime Giovanni; Pastor Ferrer, Elsa; Casal Fàbrega, Joaquim (2016-11-01)
    Article
    Open Access
    Pipelines are commonly considered a safe alternative for the transportation of hazardous materials. However, in case of failure, pipelines still pose major risks to the environment and to the population potentially exposed. ...
  • Correlations and coherence: an experimental proposal 

    Sendra Molins, Lluc (Universitat Politècnica de Catalunya, 2017-10-24)
    Bachelor thesis
    Open Access
    We propose and realize a variation of Mandel's experiment where the Englert's inequality can be demonstrated. This is a relation of the coherence and the which-way information, which is one of the most fundamental results ...
  • Decentralised multi-access MAC protocol for ad-hoc networks 

    Realp, Marc; Pérez Neira, Ana Isabel (2003)
    Conference report
    Open Access
    In ad-hoc radio networks, mechanisms on how to access the radio channel are extremely important in order to improve network efficiency and, when needed, to guarantee QoS. Traditionally, Medium Access Control (MAC) protocols ...
  • Discovering comprehensible hydrogeological profiles in the Margarita Island's acquifers including post-processing in a data mining process 

    Conti, Dante; Gibert, Karina (2014)
    Conference report
    Restricted access - author's decision
    Groundwater wells are one of the most important water resources in the world. Control and management of these resources are of high importance due to the implicit need of water as the main resource for life. This research ...
  • Distribution planning in a weather-dependent scenario with stochastic travel times: a simheuristics approach 

    Estrada-Moreno, Alejandro; Serrat Piè, Carles; Nogal Macho, María; Cavero-Lázaro, Marta; Juan Pérez, Ángel Alejandro (2019-02-04)
    Article
    Open Access
    In real-life logistics, distribution plans might be affected by weather conditions (rain, snow, and fog), since they might have a significant effect on traveling times and, therefore, on total distribution costs. In this ...
  • E-status: a web tool for learning by doing exercises 

    González Alastrué, José Antonio; Muñoz Gracia, María del Pilar (University of Creta, 2002)
    Conference report
    Open Access
    The paper introduces the project led by a team of teachers to assist students learn statistics. The goal is to build a tool able to present mathematical problems and to correct the students´ answers. The problems may include ...
  • Estimation of the number of cases of meningococcical disease in Barcelona by means capture-recapture methodology 

    Muñoz Gracia, María del Pilar; Orcau Palau, Angels; Pañella, Helena (1998-08)
    Conference lecture
    Open Access
    This study is aimed at estimating the number of cases fo meningococcical disease that appeared in Barcelona between the years 1993 and 1994. We develop long-linear models for capture-recapture methods when there are more ...
  • Evidence functions: a compositional approach to information 

    Egozcue Rubí, Juan José; Pawlowsky Glahn, Vera (Institut d'Estadística de Catalunya, 2018-07-01)
    Article
    Open Access
    The discrete case of Bayes’ formula is considered the paradigm of information acquisition. Prior and posterior probability functions, as well as likelihood functions, called evidence functions, are compositions following ...
  • Fusing mobile phone data with other data sources to generate input OD matrices for transport models 

    Montero Mercadé, Lídia; Ros-Roca, Xavier; Herranz, Ricardo; Barceló Bugeda, Jaime (Elsevier, 2018)
    Conference lecture
    Restricted access - publisher's policy
    OD matrices that describe mobility patterns provide major input to most transport analysis models. Since OD matrices are not yet directly observable, they are usually estimated indirectly. Data from new sources such as ...
  • Implementación de applets para la didáctica de la probabilidad 

    Alcaide Villar, Daniel (Universitat Politècnica de Catalunya, 2009-06)
    Master thesis (pre-Bologna period)
    Open Access
  • Joint probability density function estimation by spectral estimate methods 

    Pagès Zamora, Alba Maria; Lagunas Hernandez, Miguel A. (Institute of Electrical and Electronics Engineers (IEEE), 1996)
    Conference report
    Open Access
    The estimation of probability density functions (PDFs) of a given random variable (r.v.) is involved in topics related to codification, speech or whenever a short record of data is available but a greater amount is needed. ...