Exploració per tema "Aproximació, Teoria de l'"
Ara es mostren els items 1-20 de 24
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Ampliación al espacio de una aplicación de la integración en el campo complejo para la solución de una cuestión de informática gráfica
(Institut d'Estadística de Catalunya, 1992)
Article
Accés obertEl teorema de los residuos de Cauchy sirve como base para un algoritmo que permite determinar la posición relativa de un punto respecto a una curva cerrada simple. La ampliación de este método al espacio tropieza con la ... -
An approximation of the K-function for the study of binary images
(Institut d'estadística de Catalunya, 1993)
Article
Accés obertJensen et al. (1990) gave an exact expression for the K-function in non-overlapping Boolean models. The present study proposes and evaluates an approximate expression for the K-function in overlapping isotropic Boolean ... -
An evolutionary technique to approximate multiple optimal alignments
(Springer, 2018)
Text en actes de congrés
Accés obertThe alignment of observed and modeled behavior is an essential aid for organizations, since it opens the door for root-cause analysis and enhancement of processes. The state-of-the-art technique for computing alignments ... -
Approaching dual quaternions from matrix algebra
(2014)
Article
Accés obertDual quaternions give a neat and succinct way to encapsulate both translations and rotations into a unified representation that can easily be concatenated and interpolated. Unfortunately, the combination of quaternions and ... -
ATM: approximate task memoization in the runtime system
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés obertRedundant computations appear during the execution of real programs. Multiple factors contribute to these unnecessary computations, such as repetitive inputs and patterns, calling functions with the same parameters or bad ... -
Comparing error minimized extreme learning machines and support vector sequential feed-forward neural networks
(2012-01)
Article
Accés restringit per política de l'editorialRecently, error minimized extreme learning machines (EM-ELMs) have been proposed as a simple and efficient approach to build single-hidden-layer feed-forward networks (SLFNs) sequentially. They add random hidden nodes one ... -
Construcció de superfícies mitjançant funcions spline
(Universitat Politècnica de Barcelona. Centre de Càlcul, 1981-06)
Article
Accés obertLa contrucción de una superficie que interpole un conjunto de puntos dados con unos ciertos requisitos de suavidad y continuidad es un problema de gran importancia tanto en aplicaciones de diseño gráfico como en el ... -
Decomposing utility functions in Bounded Max-Sum for distributed constraint optimization
(Springer, 2014)
Text en actes de congrés
Accés obertBounded Max-Sum is a message-passing algorithm for solving distributed Constraint Optimization Problems (DCOP) able to compute solutions with a guaranteed approximation ratio. In this paper we show that the introduction ... -
Entropy-based non-data-aided SNR estimation
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Comunicació de congrés
Accés obertA non-data-aided SNR estimation of a communication channel is addressed in this paper. The main contribution relies on the relationship between an entropy measure of a given constellation and the link quality. The main ... -
Fuzzy inference based robust beamforming
(2005-10)
Article
Accés restringit per política de l'editorialThis paper presents a new approach to robust beamforming based on fuzzy logic theory that is suitable for both point and scattered sources. The presented technique is based on the optimum beamformer and makes it robust to ... -
Generació adaptativa de contorns de nivell
(Universitat Politècnica de Barcelona. Centre de Càlcul, 1987)
Article
Accés obertThe production of drawings with surface contours starts from a set of given points defined by their coordiantes. Several analytical formulations are available to define interpolation formula. In this article a variations ... -
Graph labelings and decompositions by partitioning sets of integers
(Universitat Politècnica de Catalunya, 2010-06-14)
Tesi
Accés obertAquest treball és una contribució a l'estudi de diferents problemes que sorgeixen de dues àrees fortament connexes de la Teoria de Grafs: etiquetaments i descomposicions. Molts etiquetaments de grafs deuen el seu origen ... -
How to initialize your network? Robust initialization for WeightNorm & ResNets
(2019)
Comunicació de congrés
Accés obertResidual networks (ResNet) and weight normalization play an important role in various deep learning applications. However, parameter initialization strategies have not been studied previously for weight normalized networks ... -
La interpolació amb funcions spline: introducció automàtica de les condicions d’extrem
(Universitat Politècnica de Barcelona. Centre de Càlcul, 1982-12)
Article
Accés obertLos algoritmos de interpolación por splines cúbicas, ampliamente utilizados en campos que van desde el diseño gráfico hasta el tratamiento de datos experimentales, requieren siempre el conocimiento de dos condiciones de ... -
Mètodes de convergència accelerada en la resolució de sistemes d’equacions no-lineals: aplicacions a l’enginyeria química.
(Universitat Politècnica de Barcelona. Centre de Càlcul, 1979-06)
Article
Accés obertEs revisen mètodes clàssics de resolució d'equacions no-lineals. L'adveniment dels computadors digitals ha divulgat aquests mètodes clàssics, però també ha obligat a modificar-los i a cercar noves tècniques per a millorar-ne ... -
Nonlinear set-membership identification using a Bayesian approach
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper deals with the problem of setmembership identification of nonlinear-in-the-parameters models. To solve this problem a Bayesian approach is presented. The paper illustrates how the Bayesian approach can be used ... -
Numerical integration by using local-node gauss-hermite cubature
(2009-06-08T10:53:59Z)
Text en actes de congrés
Accés obertA local–node numerical integration scheme for meshless methods is presented in this work. The distinguishing characteristic of the introduced scheme is that not support mesh or grid to perform numerical integration is ... -
Off-the-grid: Fast and effective hyperparameter search for kernel clustering
(Springer, 2020)
Text en actes de congrés
Accés obertKernel functions are a powerful tool to enhance the k-means clustering algorithm via the kernel trick. It is known that the parameters of the chosen kernel function can have a dramatic impact on the result. In supervised ... -
On the accuracy of the adaptive cross aproximation algorithm
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés obertThis contribution identifies an often ignored source of uncertainty in the accuracy of the adaptive cross approximation algorithm, and proposes a combination of adaptations that reduce this uncertainty with negligible ... -
On the Chebyshev property for a new family of functions
(2012-03)
Article
Accés obert
