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of 1 384
pro vyhledávání: '"Machado, João"'
In this work, we utilize image segmentation to visually identify blood vessels in retinal examination images. This process is typically carried out manually. However, we can employ heuristic methods and machine learning to automate or at least expedi
Externí odkaz:
http://arxiv.org/abs/2308.16323
In this work we analyze the Total Variation-Wasserstein minimization problem. We propose an alternative form of deriving optimality conditions from the approach of Calier\&Poon'18, and as result obtain further regularity for the quantities involved.
Externí odkaz:
http://arxiv.org/abs/2308.10753
We propose a variational approach to approximate measures with measures uniformly distributed over a 1 dimentional set. The problem consists in minimizing a Wasserstein distance as a data term with a regularization given by the length of the support.
Externí odkaz:
http://arxiv.org/abs/2304.14781
Autor:
Machado, João P. G.1,2 (AUTHOR) machadojpg@ufrj.br, Oliveira, Vinícius P.1 (AUTHOR)
Publikováno v:
Scientific Reports. 9/28/2024, Vol. 14 Issue 1, p1-10. 10p.
Autor:
Machado, João Victor1 (AUTHOR) joao.vmachado.economia@gmail.com, Sarti, Fernando1 (AUTHOR) joao.vmachado.economia@gmail.com, Silveira, Rodrigo Lanna Franco da1,2 (AUTHOR) joao.vmachado.economia@gmail.com
Publikováno v:
Industrial & Corporate Change. Dec2024, Vol. 33 Issue 6, p1518-1531. 14p.
Autor:
Anthony, Francys, Núñez, Alejandro, Agüeros, Marcel A., Curtis, Jason L., Nascimento, Jr., J. -D. do, Machado, João M., Mann, Andrew W., Newton, Elisabeth R., Rampalli, Rayna, Thao, Pa Chia, Wood, Mackenna L.
The evolution of magnetism in late-type dwarfs remains murky, as we can only weakly predict levels of activity for M dwarfs of a given mass and age. We report results from our spectroscopic survey of M dwarfs in the Southern Continuous Viewing Zone (
Externí odkaz:
http://arxiv.org/abs/2204.04700
Publikováno v:
In Marine Environmental Research November 2024 202
Autor:
Machado, João Carlos Faria
Tese de mestrado. Ciência da Informação. Faculdade de Engenharia. Universidade do Porto. 2012
Externí odkaz:
http://hdl.handle.net/10216/68402
Publikováno v:
In Ultrasound in Medicine & Biology January 2025 51(1):120-127