Browsing by Subject "Anàlisi d'error (Matemàtica)"
Now showing items 1-20 of 21
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Active learning in Crowdsourcing classification problems using Sampling Theory for graph signals
(Universitat Politècnica de Catalunya, 2017-05-15)
Bachelor thesis
Open Access
Covenantee: University of Southern California -
Adaptivity based on error estimation for viscoplastic softening materials
(2000-02)
Article
Open AccessThis paper focuses on the numerical simulation of strain softening mechanical problems. Two problems arise: (1) the constitutive model has to be regular and (2) the numerical technique must be able to capture the two scales ... -
Advanced Spatial Temporal Regularization for Inverse Electrocardiography (ECG)
(Universitat Politècnica de Catalunya, 2014-07-23)
Bachelor thesis
Open Access
Covenantee: Northeastern University[ANGLÈS] Heart diseases are the first cause of Mortality in the world. The percentage of the deceased who dies because of a cardiac infarction rises every year. Therefore, an early identification of typical signs may be ... -
An error estimator for separated representations of highly multidimensional models
(2010)
Article
Open Access -
A new approach to gross error detection for GPS networks
(2019-05-29)
Article
Open AccessWe present a new matrix-based approach to detect and correct gross errors in GPS geodetic control networks. The study is carried out by introducing a new matrix, whose entries are powers of a (real or complex) variable, ... -
A posteriori error estimation for standard finite element analysis
(1998-09)
Article
Open AccessA new residual type estimator based on projections of the error on subspaces of locally-supported functions is presented. The estimator is defined by a standard element-by-element refinement. First, an approximation of the ... -
Avaluació d'errors en la mesura del contingut de dipòsits d'oli vegetal
(Universitat Politècnica de Catalunya, 2014-12-22)
Master thesis (pre-Bologna period)
Restricted access - confidentiality agreement -
Calibration techniques of interferometric microwave receivers
(Universitat Politècnica de Catalunya, 2017-10-18)
Bachelor thesis
Restricted access - author's decisionAn interferometer for orbital determination receives a satellite signal at different spatial points using antennas that form a baseline. Those received signals have a different phase which is related to the distance between ... -
Computing the expected Markov reward rates with stationarity detection and relative error control
(Kluwer Academic Publishers, 2016-03-11)
Article
Open AccessBy combining in a novel way the randomization method with the stationary detection technique, we develop two new algorithms for the computation of the expected reward rates of finite, irreducible Markov reward models, with ... -
Distributed multi-target tracking in a wireless sensor network using diffusion strategies and adaptive combiners
(Universitat Politècnica de Catalunya, 2016-09)
Bachelor thesis
Restricted access - author's decision
Covenantee: Northeastern UniversityLas redes de sensores inalámbricos se han ido usando cada vez más en los últimos años debido a su capacidad de observar el entorno, procesar datos y tomar decisiones. Estas características han ganado importancia en el ... -
Effects of stray capacitance to ground in bipolar material impedance measurements based on direct-contact electrodes
(2014-10-01)
Article
Restricted access - publisher's policyBipolar material impedance measurements are easier to implement than tetrapolar measurements but are more affected by electrode impedance. This effect can be reduced by measuring at a high-enough frequency albeit with the ... -
Enhanced equal frequency partition method for the identification of a water demand system
(Sarjoughian,H.S.; Cellier, F.E.; Marefat, M.M.; Rozenblit, J.W. (eds.) Institute of Electrical and Electronics Engineers, 2000)
Conference report
Open AccessThis paper deals with unsupervised partitioning. A first goal of this paper is to present an enhancement to the Equal Frequency Partition (EFP) method that allows to reduce, to some extent, the main drawback of this classical ... -
Equilibrated patch recovery error estimates: simple and accurate upper bounds of the error
(Wiley and Sons, 2007-03)
Article
Open AccessThis paper introduces a new recovery-type error estimator ensuring local equilibrium and yielding a guaranteed upper bound of the error. The upper bound property requires the recovered solution to be both statically ... -
Error analysis in two-terminal impedance measurements with residual correction
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-10-31)
Article
Open AccessResidual impedance correction in impedance analyzers when using an asymmetrical test fixture needs three reference measurements, usually open circuit, short circuit, and load (meaning an impedance close to the impedance ... -
Impacto del modelo de error en distancia en la simulación de sistemas de localización
(2010)
Conference lecture
Open AccessLas redes inalámbricas han favorecido enormemente el interés de los usuarios, proveedores de servicio y operadores de red en el posicionamiento geográfico. Como consecuencia, se han propuesto mecanismos en la mayor parte ... -
MASkIt: soft error rate estimation for combinatorial circuits
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference report
Restricted access - publisher's policyIntegrated circuits are getting increasingly vulnerable to soft errors; as a consequence, soft error rate (SER) estimation has become an important and very challenging goal. In this work, a novel approach for SER estimation ... -
Probabilistic analysis of an a posteriori error estimator for finite elements
(2001-08)
Article
Open AccessA residual type a posteriori error estimator for finite elements is analyzed using a new technique. In this case, the error estimate is the result of two consecutive projections of the exact error on two finite-dimensional ... -
Process stream data analysis: Data reconciliation and gross error detection for process integration studies
(Universitat Politècnica de Catalunya / Chalmers University of Technology, 2014)
UPC Master thesis
Open Access
Covenantee: Chalmers tekniska högskolaOne of the major challenges for energy companies is to adapt their process plants to the continuous improvements of available technologies, so as to make their old plants as competitive and cost-efficient as the new ones. ... -
Recovering lower bounds of the error by postprocessing implicit residual a posteriori error estimates
(2003-03)
Article
Open AccessClassical residual type error estimators approximate the error flux around the elements and yield upper bounds of the exact (or reference) error. Lower bounds of the error are also needed in goal oriented adaptivity and ... -
Subdomain-based flux-free a posteriori error estimators
(2006-01)
Article
Open AccessA new residual type flux-free error estimator is presented. It estimates upper and lower bounds of the error in energy norm. The proposed approach precludes the main drawbacks of standard residual type estimators, circumvents ...
