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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Solos. |
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Data corrente: |
12/11/2009 |
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Data da última atualização: |
17/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PONTES, M. J. C.; CORTEZ, J.; GALVÃO, R. K. H.; PASQUINI, C.; ARAÚJO, M. C. U.; COELHO, R. M.; CHIBA, M. K.; ABREU, M. F. de; MADARI, B. E. |
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Afiliação: |
MÁRCIO JOSÉ COELHO PONTES, Universidade Federal da Paraíba; JULIANA CORTEZ, Unicamp; ROBERTO KAWAKAMI HARROP GALVÃO, Instituto Tecnológico de Aeronáutica; CÉLIO PASQUINI, Unicamp; MÁRIO CÉSAR UGULINO ARAÚJO, Universidade Federal da Paraíba; RICARDO MARQUES COELHO, Instituto Agronômico de Campinas; MÁRCIO KOITI CUNHA, Instituto Agronômico de Campinas; MÔNICA FERREIRA DE ABREU, Instituto Agronômico de Campinas; BEATA EMOKE MADARI, CNPAF. |
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Título: |
Classification of Brazilian soils by using LIBS and variable selection in the wavelet domain. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Analytica Chimica Acta, v. 642, n. 1/2, p. 12-18, May 2009. |
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DOI: |
https://doi.org/10.1016/j.aca.2009.03.001 |
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Idioma: |
Inglês |
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Conteúdo: |
This paper proposes a novel analytical methodology for soil classification based on the use of laser-induced breakdown spectroscopy (LIBS) and chemometric techniques. In the proposed methodology, linear discriminant analysis (LDA) is employed to build a classification model on the basis of a reduced subset of spectral variables. For the purpose of variable selection, three techniques are considered, namely the successive projection algorithm (SPA), the genetic algorithm (GA), and a stepwise formulation (SW). The use of a data compression procedure in the wavelet domain is also proposed to reduce the computational workload involved in the variable selection process. The methodology is validated in a case study involving the classification of 149 Brazilian soil samples into three different orders (Argissolo, Latossolo and Nitossolo). For means of comparison, soft independent modelling of class analogy (SIMCA) models are also employed. The best discrimination of soil types was attained by SPA-LDA, which achieved an average classification rate of 90% in the validation set and 72% in cross-validation. Moreover, the proposed wavelet compression procedure was found to be of value by providing a 100-fold reduction in computational workload without significantly compromising the classification accuracy of the resulting models. |
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Palavras-Chave: |
Wavelet compression. |
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Thesagro: |
Classificação do solo. |
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Thesaurus Nal: |
Soil classification. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02161naa a2200265 a 4500
001 1574593
005 2022-05-17
008 2009 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.aca.2009.03.001$2DOI
100 1 $aPONTES, M. J. C.
245 $aClassification of Brazilian soils by using LIBS and variable selection in the wavelet domain.$h[electronic resource]
260 $c2009
520 $aThis paper proposes a novel analytical methodology for soil classification based on the use of laser-induced breakdown spectroscopy (LIBS) and chemometric techniques. In the proposed methodology, linear discriminant analysis (LDA) is employed to build a classification model on the basis of a reduced subset of spectral variables. For the purpose of variable selection, three techniques are considered, namely the successive projection algorithm (SPA), the genetic algorithm (GA), and a stepwise formulation (SW). The use of a data compression procedure in the wavelet domain is also proposed to reduce the computational workload involved in the variable selection process. The methodology is validated in a case study involving the classification of 149 Brazilian soil samples into three different orders (Argissolo, Latossolo and Nitossolo). For means of comparison, soft independent modelling of class analogy (SIMCA) models are also employed. The best discrimination of soil types was attained by SPA-LDA, which achieved an average classification rate of 90% in the validation set and 72% in cross-validation. Moreover, the proposed wavelet compression procedure was found to be of value by providing a 100-fold reduction in computational workload without significantly compromising the classification accuracy of the resulting models.
650 $aSoil classification
650 $aClassificação do solo
653 $aWavelet compression
700 1 $aCORTEZ, J.
700 1 $aGALVÃO, R. K. H.
700 1 $aPASQUINI, C.
700 1 $aARAÚJO, M. C. U.
700 1 $aCOELHO, R. M.
700 1 $aCHIBA, M. K.
700 1 $aABREU, M. F. de
700 1 $aMADARI, B. E.
773 $tAnalytica Chimica Acta$gv. 642, n. 1/2, p. 12-18, May 2009.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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| Registros recuperados : 12 | |
| 5. |  | REIS, C. O. dos; MAGALHAES, P. C.; AVILA, R. G.; ALMEIDA, L. G.; RABELO, V. M.; CARVALHO, D. T.; CABRAL, D. F.; KARAM, D.; SOUZA, T. C. de. Action of N-succinyl and N,O-dicarboxymethyl chitosan derivatives on chlorophyll photosynthesis and fluorescence in drought-sensitive maize. Journal of Plant Growth Regulation, v. 38, p. 619-630, 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 6. | | REIS, C. O. dos; MAGALHAES, P. C.; AMBROSIO, A. dos S.; ALMEIDA, L. G.; CARVALHO, D. T.; SOUZA, T. C, de. Do chitosan and its derivatives have the same protective effect on drought-contrasting maize genotypes? An analysis of physiological and production processes. Australian Journal of Crop Science, v. 16, n. 2, p. 208-215, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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| 7. | | MARTINS, M.; VERONEZE JÚNIOR, V.; CARVALHO, M.; CARVALHO, D. T.; BARBOSA, S.; DORIGUETTO, A. C.; MAGALHAES, P. C.; RIBEIRO, C.; SANTOS, M. H. dos; SOUZA, T. C. de. Physicochemical characterization of chitosan and its effects on early growth, cell cycle and root anatomy of transgenic and non-transgenic maize hybrids. Australian Journal of Crop Science, v. 12, n. 1, p. 56-36, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 8. | | VERONEZE JÚNIOR, V.; MARTINS, M.; MC LEOD, L.; SOUZA, K. R. D.; SANTOS FILHO, P. R.; MAGALHAES, P. C.; CARVALHO, D. T.; SANTOS, M. H.; SOUZA, T. C. Leaf application of chitosan and physiological evaluation of maize hybrids contrasting for drought tolerance under water restriction. Brazilian Journal of Biology, v. 80, n. 3 p. 631-640, 2020. Publicado online em 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 9. | | LUCENA, A. R. F. de; MENEZES, D. R.; CARVALHO, D. T. Q. de; MATOS, J. C.; ANTONELLI, A. C.; MORAES, S. A. de; DIAS, F. S.; QUEIROZ, M. A. A.; RODRIGUES, R. T. S. Effect of commercial tannin and a pornunca (Manihotspp.) silage-based diet on the fatty acid profile of Saanen goats milk. International Journal of Dairy Technology, v. 71, n. 3, p. 613-620, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Semiárido. |
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| 10. | | RABELO, V. M.; MAGALHAES, P. C.; BRESSANIN, L. A.; CARVALHO, D. T.; REIS, C. O.; KARAM, D.; DORIGUETTO, A. C.; SANTOS, M. H. dos; SANTOS FILHO, P. R. dos; SOUZA, T. C. de. The foliar application of a mixture of semisynthetic chitosan derivatives induces tolerance to water deficit in maize, improving the antioxidant system and increasing photosynthesis and grain yield. Scientific Reports, v. 9, article n. 8164, 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 11. | | MENEZES, D. R.; SANTOS, J. M. dos; OLIVEIRA, C. R. N. de; MARCELINO, P. D. R.; PINHEIRO, A. P. da M.; CARVALHO, D. T. Q. de; NASCIMENTO, J. C. S.; GOIS, G. C.; VOLTOLINI, T. V.; QUEIROZ, M. A. A. Rainfall variability affects the chemical composition, gas production and degradability of cacti. Revista Colombiana de Ciencia Animal - RECIA, v. 14, n. 1, e895, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
| Biblioteca(s): Embrapa Semiárido. |
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| 12. | | SOUZA, T. C. de; AMBRÓSIO, A. dos S.; PORTUGAL, J. A. de N.; SOUZA, K. R. D. de; MAGALHAES, P. C.; SILVA, L. C da; DIAS, D. F.; SOUZA, T. B. de; CARVALHO, D. T. Maize chlorophyll-a fluorescence analysis under water deficit with application of trehalose derivates mixture. In: BRAZILIAN CONGRESS OF PLANT PHYSIOLOGY, 17., 2019, Cuiabá. Challenges for plant physiology; Food production and sustanability: [abstracts]. Rio Claro, SP: Sociedade Brasileira de Fisiologia Vegetal, 2019. p. 202.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 12 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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