|
|
Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Arroz e Feijão; Embrapa Gado de Leite; Embrapa Meio-Norte; Embrapa Pantanal; Embrapa Tabuleiros Costeiros; Embrapa Trigo. |
Data corrente: |
24/01/1992 |
Data da última atualização: |
25/08/2006 |
Autoria: |
ANDRADE, D. F.; MOURA, M. F. |
Título: |
Estudo dos efeitos dos níveis do fator "A" para cada nível do fator "B". |
Ano de publicação: |
1987 |
Fonte/Imprenta: |
Campinas: EMBRAPA-NTIA, 1987. |
Páginas: |
12 p. |
Série: |
(EMBRAPA-NTIA. Relatório Técnico, 1). |
Idioma: |
Português |
Conteúdo: |
Neste trabalho discutimos o uso dos recursos da versão 2.0 do SOC para estudar os efeitos dos níveis de um fator A dentro de cada um dos níveis de um fator B. Três soluções são apresentadas através do uso de um fatorial 3x3. Estas soluções podem facilmente ser generalizadas para qualquer número de fatores e de níveis. |
Palavras-Chave: |
Agropecuaria; Analysis; Estudo; Interacao; MODLIN; Módulo; Relatorio; Report; SOC; Statistic; Variancia. |
Thesagro: |
Análise; Automação; Estatística; Informática. |
Thesaurus Nal: |
agriculture; automation; variance. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01206nam a2200361 a 4500 001 1195578 005 2006-08-25 008 1987 bl uuuu u0uu1 u #d 100 1 $aANDRADE, D. F. 245 $aEstudo dos efeitos dos níveis do fator "A" para cada nível do fator "B". 260 $aCampinas: EMBRAPA-NTIA$c1987 300 $a12 p. 490 $a(EMBRAPA-NTIA. Relatório Técnico, 1). 520 $aNeste trabalho discutimos o uso dos recursos da versão 2.0 do SOC para estudar os efeitos dos níveis de um fator A dentro de cada um dos níveis de um fator B. Três soluções são apresentadas através do uso de um fatorial 3x3. Estas soluções podem facilmente ser generalizadas para qualquer número de fatores e de níveis. 650 $aagriculture 650 $aautomation 650 $avariance 650 $aAnálise 650 $aAutomação 650 $aEstatística 650 $aInformática 653 $aAgropecuaria 653 $aAnalysis 653 $aEstudo 653 $aInteracao 653 $aMODLIN 653 $aMódulo 653 $aRelatorio 653 $aReport 653 $aSOC 653 $aStatistic 653 $aVariancia 700 1 $aMOURA, M. F.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
16/11/2021 |
Data da última atualização: |
09/06/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
FURUYA, D. E. G.; MA, L.; PINHEIRO, M. M. F.; GOMES, F. D. G.; GONÇALVEZ, W. N.; MARCATO JUNIOR, J.; RODRIGUES, D. de C.; BLASSIOLI- MORAES, M. C.; MICHEREFF, M. F. F.; BORGES, M.; ALAUMANN, R. A.; FERREIRA, E. J.; OSCO, L. P.; RAMOS, A. P. M.; LI, J.; JORGE, L. A. de C. |
Afiliação: |
MARIA CAROLINA BLASSIOLI MORAES, Cenargen; MIGUEL BORGES, Cenargen; EDNALDO JOSE FERREIRA, CNPDIA; LUCIO ANDRE DE CASTRO JORGE, CNPDIA. |
Título: |
Prediction of insect-herbivory-damage and insect-type attack in maize plants using hyperspectral data. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
International Journal of Applied Earth Observation and Geoinformation, v. 105, 102608, 2021. |
Páginas: |
1 - 10 |
ISSN: |
0303-2434 |
DOI: |
https://doi.org/10.1016/j.jag.2021.102608 |
Idioma: |
Inglês |
Conteúdo: |
Accurately detecting the insect damage caused in plants might reduce losses in crop yields. Hyperspectral data is a well-accepted data source to attend this issue. However, due to their high dimensional, both robust and intelligent methods are required to extract information from these datasets. Therefore, we explore the processing of hyperspectral data with artificial intelligence methods joined with clustering techniques to detect insect herbivory damage in maize plants. We measured the leaf spectral response from three different groups of maize plants: control (undamaged plants); damaged by Spodoptera frugiperda herbivory, and damaged by Dichelops meiacanthus. Data were collected with a FieldSpec 3.0 Spectroradiometer from 350 to 2500 nm for eight consecutive days. We adjusted eight machine learning methods. We also determined the most contributive wavelengths to differentiate undamaged from damaged plants by insect herbivore attack using clustering strategy. For that, we applied the clusterization method based on a self-organizing map (SOM). The Random Forest (RF) model is the overall best learner, and up to the 5th day of analysis represents the most adequate day to segregate maize undamaged from damaged maize. RF was able to separate the three groups of treatments with an F1-measure of up to 96.7% (Recall of 96.7% and Precision of 96.7%). Additionally, we found out that the most representative spectral regions are located in the near-infrared range. Our approach consists of an original contribution to early differentiate the undamaged plant from the damaged one due to insect-attack, highlighting the most contributive wavelengths to map this occurrence. MenosAccurately detecting the insect damage caused in plants might reduce losses in crop yields. Hyperspectral data is a well-accepted data source to attend this issue. However, due to their high dimensional, both robust and intelligent methods are required to extract information from these datasets. Therefore, we explore the processing of hyperspectral data with artificial intelligence methods joined with clustering techniques to detect insect herbivory damage in maize plants. We measured the leaf spectral response from three different groups of maize plants: control (undamaged plants); damaged by Spodoptera frugiperda herbivory, and damaged by Dichelops meiacanthus. Data were collected with a FieldSpec 3.0 Spectroradiometer from 350 to 2500 nm for eight consecutive days. We adjusted eight machine learning methods. We also determined the most contributive wavelengths to differentiate undamaged from damaged plants by insect herbivore attack using clustering strategy. For that, we applied the clusterization method based on a self-organizing map (SOM). The Random Forest (RF) model is the overall best learner, and up to the 5th day of analysis represents the most adequate day to segregate maize undamaged from damaged maize. RF was able to separate the three groups of treatments with an F1-measure of up to 96.7% (Recall of 96.7% and Precision of 96.7%). Additionally, we found out that the most representative spectral regions are located in the near-infrared range. Our approach consis... Mostrar Tudo |
Palavras-Chave: |
Proximal hyperspectral sensing; Random forest. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02800naa a2200361 a 4500 001 2136152 005 2022-06-09 008 2021 bl uuuu u00u1 u #d 022 $a0303-2434 024 7 $ahttps://doi.org/10.1016/j.jag.2021.102608$2DOI 100 1 $aFURUYA, D. E. G. 245 $aPrediction of insect-herbivory-damage and insect-type attack in maize plants using hyperspectral data.$h[electronic resource] 260 $c2021 300 $a1 - 10 520 $aAccurately detecting the insect damage caused in plants might reduce losses in crop yields. Hyperspectral data is a well-accepted data source to attend this issue. However, due to their high dimensional, both robust and intelligent methods are required to extract information from these datasets. Therefore, we explore the processing of hyperspectral data with artificial intelligence methods joined with clustering techniques to detect insect herbivory damage in maize plants. We measured the leaf spectral response from three different groups of maize plants: control (undamaged plants); damaged by Spodoptera frugiperda herbivory, and damaged by Dichelops meiacanthus. Data were collected with a FieldSpec 3.0 Spectroradiometer from 350 to 2500 nm for eight consecutive days. We adjusted eight machine learning methods. We also determined the most contributive wavelengths to differentiate undamaged from damaged plants by insect herbivore attack using clustering strategy. For that, we applied the clusterization method based on a self-organizing map (SOM). The Random Forest (RF) model is the overall best learner, and up to the 5th day of analysis represents the most adequate day to segregate maize undamaged from damaged maize. RF was able to separate the three groups of treatments with an F1-measure of up to 96.7% (Recall of 96.7% and Precision of 96.7%). Additionally, we found out that the most representative spectral regions are located in the near-infrared range. Our approach consists of an original contribution to early differentiate the undamaged plant from the damaged one due to insect-attack, highlighting the most contributive wavelengths to map this occurrence. 653 $aProximal hyperspectral sensing 653 $aRandom forest 700 1 $aMA, L. 700 1 $aPINHEIRO, M. M. F. 700 1 $aGOMES, F. D. G. 700 1 $aGONÇALVEZ, W. N. 700 1 $aMARCATO JUNIOR, J. 700 1 $aRODRIGUES, D. de C. 700 1 $aBLASSIOLI- MORAES, M. C. 700 1 $aMICHEREFF, M. F. F. 700 1 $aBORGES, M. 700 1 $aALAUMANN, R. A. 700 1 $aFERREIRA, E. J. 700 1 $aOSCO, L. P. 700 1 $aRAMOS, A. P. M. 700 1 $aLI, J. 700 1 $aJORGE, L. A. de C. 773 $tInternational Journal of Applied Earth Observation and Geoinformation$gv. 105, 102608, 2021.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Instrumentação (CNPDIA) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|