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Métodos de elementos virtuales mixtos para problemas no lineales en mecánica de fluidos = Mixed virtual element methods for nonlinear problems in fluids mechanics.
(Universidad de Concepción, Facultad de Ciencias Físicas y Matemáticas, Departamento de Ingeniería Matemática., 2019)
In this thesis we introduce and analyze further applications of the Virtual Element Method (VEM), which can be interpreted as an evolution of the Mimetic Finite Differences method offering high order approximation spaces ...
Algoritmo para a extração incremental de sequências relevantes com janelamento e pós-processamento aplicado a dados hidrográficos
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Ciência da Computação - PPGCC, 2013-06-07)
The mining of sequential patterns in data from environmental sensors is a challenging task: the data may show noise and may also contain sparse patterns that are difficult to detect. The knowledge extracted from environmental ...
A correction algorithm for undersampled images using dynamic segmentation and entropy based focus criterion
(ELSEVIER SCIENCE INC, 2002)
A post-processing technique is presented for correcting images undersampled in k-space. The method works by taking advantage of the image's background zeros (dynamically segmented through the application of a threshold) ...
A posteriori error analysis of a mixed virtual element method for a nonlinear Brinkman model of porous media flow
(Elsevier Ltd, 2020-06-25)
In this paper we present an a posteriori error analysis of a mixed-VEM discretization
for a nonlinear Brinkman model of porous media flow, which has been proposed
by the authors in a previous work. Therein, the system ...
Detecção de fake news utilizando o algoritmo Naïve Bayes
(Universidade Tecnológica Federal do ParanáCuritibaBrasilCiência de Dados e suas AplicaçõesUTFPR, 2021-07-26)
Fake News, the term that gained visibility during the latest presidential elections in several countries, spreads quickly, becoming a concern for society. The objective of this work is to obtain a machine learning model ...
Application of the double difference earthquake relocation algorithm methodology using hypodd at four seismic sequences in Costa Rica
(Universidad de Costa Rica, 2017)
Algorithms for automatic segmentation of bovine embryos produced
(2014)
In vitro production has been employed in bovine embryos and quantification of lipids is fundamental to understand the metabolism of these embryos. This paper presents a unsupervised segmentation method for histological ...
A computational strategy for the identification of pulmonary squamous cell carcinoma in computerized tomography images
(IOP Publishing, 2019)
The objective of the work is to propose a computational strategy to identify lung
squamous cell carcinoma in three-dimensional databases (3D) of multislice computerized
tomography. This strategy consists of the pre-processing, ...
Un nuevo algoritmo en la técnica de velocimetria por imágenes de partículas
(2008-11-29)
RESUMEN: La velocimetría por imágenes de partículas (PIV) es una técnica basada en el procesamiento digital de imágenes, la cual permite obtener, en forma indirecta, el campo de velocidades de un fluido en movimiento. El ...
Incorporating Angular Ratio Images into Two-Frame Stereo Algorithms
(Revista Computación y Sistemas; Vol. 16 No. 1, 2012-03-05)
Abstract. Light Transport Constancy (LTC) asserts that
the reflectance ratio obtained from two different
illumination variations remains constant for any given
view of the observed scene. LTC was proposed in [21]
as a ...