Accuracy of tree height estimation with model extracted from artificial neural network and new linear and nonlinear models

Autor: Daniel Dantas, Luiz Otávio Rodrigues Pinto, Talles Hudson Souza Lacerda, Natielle Gomes Cordeiro, Natalino Calegario

Publikováno v: Acta Scientiarum: Agronomy, Vol 46, Iss 1 (2023)

Variable height is commonly used as an input attribute to estimate other variables. Thus, to ensure less susceptibility to errors, it is necessary to obtain the variable height correctly. In addition to DBH, hypsometric relationships are influenced b

Externí odkaz: https://doaj.org/article/f237b9e4c6194a6089173f52acf5126f

ARTIFICIAL NEURAL NETWORKS (ANN) FOR HEIGHT ESTIMATION IN A MIXED-SPECIES PLANTATION OF Eucalyptus globulus LABILL AND Acacia mearnsii DE WILD

Autor: Gustavo Martins Soares, Luciana Duque Silva, Antonio Rioyei Higa, Augusto Arlindo Simon, Jackson Freitas Brilhante de São José

Publikováno v: Revista Árvore, Vol 45 (2021)

ABSTRACT The objective of this study is to evaluate the fit of Artificial Neural Networks (ANN) for height estimation and evaluation of the effects of consortium in a mixed-species plantation of Eucalyptus globulus (E) and Acacia mearnsii (A). The ex

Externí odkaz: https://doaj.org/article/ff7562cd3f27406d9750048b88af1067

Hybrid Method for Fitting Nonlinear Height–Diameter Functions

Autor: Cassio Augusto Ussi Monti, Rafael Menali Oliveira, Joseph Peter Roise, Henrique Ferraço Scolforo, Lucas Rezende Gomide

Publikováno v: Forests; Volume 13; Issue 11; Pages: 1783

Regression analysis is widely applied in many fields of science to estimate important variables. In general, nonlinear regression is a complex optimization problem and presents intrinsic difficulties in estimating reliable parameters. Nonlinear optim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6556493a2a1e0a215b8524e3902d404
https://doi.org/10.3390/f13111783

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Relation hypsométrique pour l'Eucalyptus globulus Labill. au Portugal

Autor: Margarida Tomé, Ribeiro, Fernanda, Faias, Sónia

Publikováno v: Silva Lusitana, Volume: 15, Issue: 1, Pages: 41-55, Published: JUN 2007
ResearcherID
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Silva Lusitana v.15 n.1 2007
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
CIÊNCIAVITAE

Para a determinação do volume da árvore, e consequentemente, para a determinação do volume do povoamento, a altura da árvore é uma variável essencial. Em muitos casos esta variável não é medida directamente no campo, recorrendo-se à sua e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::335814750168552ba56f808d513c759c
http://www.scielo.mec.pt/scielo.php?script=sci_arttext&pid=S0870-63522007000100004&lng=en&tlng=en