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Title:
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A MODEL OF LANDFORM ATTRIBUTES REPRESENTATION FOR APPLICATION IN DISTRIBUTED SYSTEMS |
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Author(s):
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Leacir Nogueira Bastos , Rossini Pena Abrantes , Brauliro Gonçalves Leal , Carlos De Castro Goulart |
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ISBN:
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978-972-8924-56-0 |
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Editors:
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Nuno Guimarães and Pedro Isaías |
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Year:
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2008 |
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Edition:
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Single |
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Keywords:
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Mathematical Modeling of Landform Attributes, Distributed Processing, Internet, Nonlinear Regression, Polynomial
Estimation |
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Type:
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Short Paper |
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First Page:
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460 |
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Last Page:
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465 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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This study presents a methodology based on nonlinear regression for landform attributes representation. The equations to
estimate the parameters of a two-dimensional polynomial are shown and, for testing the methodology, it was used the
data of landform attributes from the state of Minas Gerais (Brazil) obtained by the Digital Elevation Model (DEM) from
GTOPO30 project, in the form of a regular grid, with spacing of approximately 900m. The presented methodology can be
used to minimize time in sending landform attributes information through network, to minimize space by storing the
parameters of the estimated polynomial and to make possible the process distribution in different CPUs over Internet
network, for the polynomial coefficients calculations. |
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