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A Sparse Tensor Decomposition with Multi-Dictionary Learning Applied to Diffusion Brain Imaging
(University of Lisbon, 2017)
We use a multidimensional signal representation that integrates diffusion Magnetic Resonance Imaging (dMRI) and tractography (brain connections) using sparse tensor decomposition. The representation encodes brain connections ...
Leaf-litter decomposition of the mangrove species Avicennia schaueriana, Laguncularia racemosa and Rhizophora mangle
(Cambridge University Press, 2013-11)
This study evaluated the decomposition process of leaf litter from the main Brazilian mangrove species Avicennia schaueriana, Laguncularia racemosa and Rhizophora mangle. Senescent leaves were collected, dried and placed ...
Convergence analysis of sampling-based decomposition methods for risk-averse multistage stochastic convex programs
(EMAp - Escola de Matemática Aplicada, 2016)
We consider a class of sampling-based decomposition methods to solve risk-averse multistage stochastic convex programs. We prove a formula for the computation of the cuts necessary to build the outer linearizations of the ...
Activity of alumina supported Fe catalysts for N2O decomposition: effects of the iron content and thermal treatment
(Sociedad Chilena de Química, 2017)
The activity of Fe2O3/Al2O3 catalysts prepared by impregnation of Al2O3 with different amounts of Fe and calcination temperatures (650 and 900 degrees C) in the direct N2O decomposition reaction was studied. High calcination ...
Orientation-Independent Empirical Mode Decomposition for Images Based on Unconstrained Optimization
(Institute of Electrical and Electronics Engineers, 2016-03)
This paper introduces a 2D extension of the empirical mode decomposition (EMD), through a novel approach based on unconstrained optimization. EMD is a fully data-driven method that locally separates, in a completely ...
Dung decomposition and associated beetles in a fragmented temperate forest
(SOCIEDAD BIOLOGIA CHILE, 2004-03)
Habitat fragmentation may result in changes in species number and Population abundance among habitats that differ in area, structure, or edge characteristics. These changes, in turn, may result in alterations in ecosystem ...
Leaf litter decomposition in three wetland types of the Paraná River floodplain
(Springer, 2006)
Leaf decomposition rates of nine types of litter, ranging in lignin content from 1.04 to 25.71%, were measured at three wetlands with different inundation regimes and related to internal and external factors. In these sites ...
Topology Of Foliations And Decomposition Of Stochastic Flows Of Diffeomorphisms
(Springer New York LLC, 2016)
Skeletal stochastic differential equations for superprocesses
(Cambridge Univ., 2020)
It is well understood that a supercritical superprocess is equal in law to a discrete Markov branching process whose genealogy is dressed in a Poissonian way with immigration which initiates subcritical superprocesses. The ...