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16  Articles
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Covid-19 is a new type of corona virus called SARS-CoV-2. One of the cities that has contributed the most to infected Covid-19 cases in Indonesia is Surabaya, East Java. Predicting the Covid-19 is the important thing to do. One of the prediction methods i... see more

En este artículo se presenta una comparación de la eficiencia del método de optimización no linealBFGS cuando es aplicado usando los programas C, Ox y R. Esta comparación se realiza al evaluar el desempeño del método BFGS cuando es usado para obtener las ... see more

Neste trabalho apresenta-se a otimização dos pesos das observações baseada em um problema de valor próprio inverso e dois métodos para a sua solução. O método de Newton clássico (aproximação linear) e o método quase-Newton-BFGS (Broyden-Fletcher-Goldfarb-... see more

Minimizar uma função real, com as mais diversas particularidades, tem configurado um dos principais  desafios matemáticos no campo da Otimização. Dentre tais problemas, a minimização de funções sem restrições, conhecida como otimização irrestrita, to... see more

Today there is a significant increase in the number of incidents involving the use of plastic cards, as well as a variety of fraudulent methods used by cybercriminals. The presented article is devoted to the application of machine learning methods to coun... see more

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Artificial neural networks (ANN) was used to predict the quality parameters of tomato, i.e. Brix, citric acid, total carotene, and vitamin C. ANN was developed from Red Green Blue (RGB) image data of tomatoes measured using a developed computer vision sys... see more

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