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Streamlined approaches for image classification using principal component analysis and hierarchical clustering of extrudates from coffee and sorghum blends. Author(s): HIDALGO CHÁVEZ, D. W.; SILVA, F. L. C. DA; PINTO, R. V.; CARVALHO, C. W. P. de; FREITAS-SILVA, O. This article describes simple methods to group images including principal component analysis (PCA) and hierarchical clustering of principal components (HCPC). Images of expanded and low expanded extru... ... Repository: BDPA Publication year: 2023
Hierarchical classification of soybean in the Brazilian Savanna based on Harmonized Landsat Sentinel data. Author(s): PARREIRAS, T. C.; BOLFE, E. L.; CHAVES, M. E. D.; DEL'ARCO SANCHES, I.; SANO, E. E.; VICTORIA, D. de C.; BETTIOL, G. M.; VICENTE, L. E. Abstract. The Brazilian Savanna presents a complex agricultural dynamic and cloud cover issues; therefore, there is a need for new strategies for more detailed agricultural monitoring. Using a hierarc... ... Repository: BDPA Publication year: 2022
Separation of Cultivars of Soybeans by Chemometric Methods Using Near Infrared Spectroscopy. Author(s): PANERO, J. S.; SILVA, H. E. B. da; PANERO, P. S.; SMIDERLE, O. J.; PANERO, F. S.; FARIA, F. S. E. D. V.; RODRIGUEZ, A. F. R. Repository: BDPA Publication year: 2018
Robustness of germination analysis methods for Copaifera langsdorffii Desf. (Fabaceae) seeds. Author(s): SANTANA, D. G. de; LOBO, G. A.; SALOMAO, A. N.; PEREIRA, V. J. Repository: BDPA Publication year: 2016
Soil classification from visible/near-infrared diffuse reflectance spectra at multiple depths. Author(s): VASQUES, G. de M.; DEMATTE, J. A. M.; LOPEZ, L. R.; TERRA, F. da S. Abstract : Visible/near-infrared diffuse reflectance spectroscopy (VNIRS) offers an alternative to conventional analytical methods to estimate various soil attributes. However, the use of VNIRS in soi... ... Repository: BDPA Publication year: 2011
Ecological classification of Brazilian earthworms: a first attempt using morphological data. Author(s): ANDRADE, D. P. de; BROWN, G. G.; CALLAHAM JÚNIOR, M. A. Repository: BDPA Publication year: 2010
Sample size for monitoring sirex populations and their natural enemies. Author(s): PENTEADO, S. do R. C.; OLIVEIRA, E. B. de; IEDE, E. T. A vespa-da-madeira, Sirex noctilio Fabricius (Hymenoptera: Siricidae) foi introduzida no Brasil em 1988 e tornou-se a principal praga dos plantios de pínus. Encontra-se distribuída em aproximadamente... ... Repository: BDPA Publication year: 2016
Comparação de ferramentas de tópicos em textos sob o paradigma de aprendizado estatístico não supervisionado. Author(s): COSTA, I. P. da; MOURA, M. F. Neste trabalho pretende-se estudar e explorar ferramentas de aprendizado de tópicos hierárquicos, através de coleções textuais e teoria estatística Repository: BDPA Publication year: 2014
Multi-trait BLUP model indicates sorghum hybrids with genetic potential for agronomic and nutritional traits. Author(s): ALMEIDA FILHO, J. E.; TARDIN, F. D.; GUIMARAES, J. F. R.; RESENDE, M. D. V.; SILVA, F. F.; SIMEONE, M. L. F.; MENEZES, C. B. de; QUEIROZ, V. A. V. The breeding of sorghum, Sorghum bicolor (L.) Moench, aimed at improving its nutritional quality, is of great interest, since it can be used as a highly nutritive alternative food source and can possi... ... Repository: BDPA Publication year: 2016
Efficient use of Landsat-8 data to minimize cloud coverage in the analysis of soybean, corn, and cotton cultivation. Author(s): DOMPIERI, M. H. G.; COUTINHO, P. A. Q.; SILVA, M. A. S. da This study aimed to manipulate databases from the Landsat-8 project to select orbital scenes with minimal cloud coverage aligned with the growth periods of cotton, corn, and soybean crops in the Cerra... ... Repository: BDPA Publication year: 2024

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