Ara es mostren els items 39815-39834 de 84327

  • Global hypothesis test to compare the likelihood ratios of multiple binary diagnostic tests with ignorable missing data 

    Marín Jiménez, Ana Eugenia; Roldán Nofuentes, José Antonio (Institut d'Estadística de Catalunya, 2014-12)
    Article
    Accés obert
    In this article, a global hypothesis test is studied to simultaneously compare the likelihood ratios of multiple binary diagnostic tests when in the presence of partial disease verification the missing data mechanism is ...
  • Global illumination techniques for the computation of hight quality images in general environments 

    Pérez Cazorla, Frederic (Universitat Politècnica de Catalunya, 2003-05-26)
    Tesi
    Accés obert
    The objective of this thesis is the development of algorithms for the simulation of the light transport in general environments to render high quality still images. To this end, first we have analyzed the existing methods ...
  • Global impostor selection for DBNs in multi-session i-vector speaker recognition 

    Ghahabi Esfahani, Omid; Hernando Pericás, Francisco Javier (2014-11-19)
    Article
    Accés restringit per política de l'editorial
    An effective global impostor selection method is proposed in this paper for discriminative Deep Belief Networks (DBN) in the context of a multi-session i-vector based speaker recognition. The proposed method is an ...
  • Global instability in the elliptic restricted three body problem 

    Rosa Ibarra, Abraham de la (Universitat Politècnica de Catalunya, 2014-06-16)
    Tesi
    Accés obert
    The goal of this thesis is to show global instability or Arnold's diffusion in the elliptic restricted three body problem (ERTBP) by proving the existence of pseudo-trajectories diffusing along the phase space for certain ...
  • Global ionospheric monitoring and navigation systems 

    Feltens, J.; Angling, M; Jakowski, Norbert; Hernández Pajares, Manuel; Zandbergen, R. (2010)
    Presentació
    Accés obert
  • Global IT strategic plan for universities in Spain 

    Fernández, A.; Barrado Muxí, Cristina; Fernández, S. (University of Tartu, 2006-06)
    Text en actes de congrés
    Accés obert
    Many reports show up every year to measure the development and social use of the Information Technologies (IT) in given territorial areas [1, 2]. They exhibit key aspects of reality using a set of indicators. On consolidated ...
  • Global location-domination in graphs 

    Hernando Martín, María del Carmen; Mora Giné, Mercè; Pelayo Melero, Ignacio Manuel (2013-12-03)
    Report de recerca
    Accés obert
    A dominating set S of a graph G is called locating-dominating, LD-setfor short, if every vertex v not in S is uniquely determined by the set of neighbors of v belonging to S. Locating-dominating sets of minimum cardinality ...
  • Global misrouting policies in two-level hierarchical networks 

    Garcia, Marina; Vallejo, Enrique; Beivide Palacio, Julio Ramón; Odriozola, Miguel; Camarero Coterillo, Cristobal; Valero Cortés, Mateo; Labarta Mancho, Jesús José; Rodríguez, Germán (2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Dragonfly networks are composed of interconnected groups of routers. Adaptive routing allows packets to be forwarded minimally or non-minimally adapting to the traffic conditions in the network. While minimal routing sends ...
  • Global MPPT scheme for photovoltaic string inverters based on restricted voltage window search algorithm 

    Boztepe, Mutlu; Guinjoan Gispert, Francisco; Velasco Quesada, Guillermo; Silvestre Bergés, Santiago; Chouder, Aissa; Karatepe, Engin (Institute of Electrical and Electronics Engineers (IEEE), 2014-07-01)
    Article
    Accés restringit per política de l'editorial
    String inverter photovoltaic (PV) systems with bypass diodes require improved global maximum power point tracking (GMPPT) algorithms to effectively reach the absolute maximum power operating point. Several GMPPT algorithms ...
  • Global optimization of robotic grasps 

    Rosales Gallegos, Carlos; Porta Pleite, Josep Maria; Ros Giralt, Lluís (The MIT Press. Massachusetts Institute of Technology, 2011)
    Text en actes de congrés
    Accés obert
    This paper presents a procedure to optimize the quality of robotic grasps for objects that need to be held and manipulated in a specific way, characterized by a number of tight contact constraints. The main difficulties ...
  • Global optimization strategies to simplify cardiovascular diagnostics 

    Guedea Ripoll, Ferran (Universitat Politècnica de Catalunya, 2015-06)
    Projecte Final de Màster Oficial
    Accés restringit per decisió de l'autor
    Designing and leveraging ‘high throughput’ aspects of efficient engineering models can increase their relevance in understanding biological systems. This thesis explores the use of design of experiments, optimization, ...
  • Global periodicity conditions for maps and recurrences via normal forms 

    Cima Mollet, Anna; Gasull Embid, Armengol; Mañosa Fernández, Víctor (2013-11)
    Article
    Accés obert
    We face the problem of characterizing the periodic cases in parametric families of rational diffeomorphisms of K, where K is ℝ or ℂ, having a fixed point. Our approach relies on the Normal Form Theory, to obtain necessary ...
  • Global periodicity conditions for maps and recurrences via Normal Forms 

    Cima Mollet, Anna; Gasull Embid, Armengol; Mañosa Fernández, Víctor (2012-05-04)
    Altres
    Accés obert
    We face the problem of characterizing the periodic cases in parametric families of (real or complex) rational diffeomorphisms having a fixed point. Our approach relies on the Normal Form Theory, to obtain necessary conditions ...
  • Global prediction of the vertical total electron content of the ionosphere based on GPS data 

    García Rigo, Alberto; Monte Moreno, Enrique; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; Aragón Ángel, María Ángeles; Salazar Hernández, Dagoberto José (2011-12-29)
    Article
    Accés obert
    Although vertical total electron content (VTEC) forecasting is still an open subject of research, the use of predictions of the ionospheric state at a scale of several days is an area of increased interest. A global VTEC ...
  • Global productiveness propagation: A code optimization technique to speculatively prune useless narrow computations 

    Bhagat, Indu; Gibert Codina, Enric; Sanchez, Jesus; González Colás, Antonio María (ACM Press, NY, 2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper proposes a unique hardware-software collaborative strategy to remove useless work at 16-bit data-width granularity. The underlying motivation is to design a low power execution platform by exploiting ‘narrow’ ...
  • Global reduction to the Kronecker canonical form of a C^r-family of time-invariant linear systems 

    Ferrer Llop, Josep; Puerta Sales, Ferran; Puerta Coll, Xavier (1999)
    Article
    Accés obert
    We present a geometric approach to the study of time-invariant systems, represented by quadruples of matrices (A, B, C, D). Our main goal is, given a differentiable family of such quadruples having constant Kronecker type, ...
  • Global Reporting Initiative (GRI) as recognized guidelines for sustainability reporting by spanish companies on the IBEX 35: homogeneity in their framework and added value in the relationship with financial entities 

    Ortiz Martínez, Esther; Marín Hernández, Salvador (OmniaScience, 2014-12)
    Article
    Accés obert
    Purpose: The goal of this paper is to show that among the different ways of reporting sustainability information, there is a majority acceptance of voluntary initiatives to establish a homogeneous framework for transparency. ...
  • Global Supply desing with integration of transfer pricing 

    Ferreon, Victor (Universitat Politècnica de Catalunya / Keio University, 2014)
    Projecte Final de Màster Oficial
    Accés obert
    Realitzat a/amb: Keiō Gijuku Daigaku
  • Global traceability 

    Belmonte Viladomat, Artur (Universitat Politècnica de Catalunya / Keio University, 2010)
    Projecte/Treball Final de Carrera
    Accés obert
    The use of Ultra High Frequency (UHF) Radio Frequency Identification (RFID) in supply chain management (SCM) systems was a big source for optimism. However, the expected rapid industry adoption of RFID did not take place. ...
  • Global University Network for Innovation 

    Global University Network for Innovation (Mundiprensa, 2008)
    Article
    Accés obert