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Aviso: Em razão de manutenção do Data Center que hospeda as publicações digitais da Embrapa informamos que todos os arquivos de publicações estarão indisponíveis para download das 15hs do dia 13/12/2024 até o dia 17/12/2024.

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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
Monitoring complex integrated crop-livestock systems at regional scale in Brazil: a big earth observation data approach. Author(s): KUCHLER, P. C.; SIMÕES, M.; FERRAZ, R. P. D.; ARVOR, D.; MACHADO, P. L. O. de A.; ROSA, M.; GAETANO, R.; BÉGUÉ, A. Due to different combinations of agriculture, livestock and forestry managed by rotation, succession and intercropping practices, integrated agriculture production systems such as integrated crop-live... ... 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
Characterization of histosol: proposal to the brazilian soil classification system. Author(s): PEREIRA, M. G.; VALLADARES, G. S.; ANJOS, L. H. C.; EBELING, A. G.; BENITES, V. de M. Repository: BDPA Publication year: 2006
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
A multicriteria climatic classification system for grape-growing regions worldwide. Author(s): TONIETTO, J.; CARBONNEAU, A. resumo Este estudo refere-se em primeiro lugar, a metodologia para descrever o clima de vinhedos, em uma escala de macroclimate regiões vitícolas em todo o mundo. Três índices climáticos vitícolas sin... ... Repository: BDPA Publication year: 2004
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
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

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