Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Helder Manoel Venceslau"'
Autor:
Marilis Bahr Karam Venceslau, Gustavo Dias, Nelson Maculan, Helder Manoel Venceslau, Renan Vicente Pinto
Publikováno v:
RAIRO - Operations Research. 55:S787-S810
The covering problem of a three dimensional body using different radii spheres is considered. The motivating application – the treatment planning of Gamma Knife radiosurgery – is briefly discussed. We approach the problem only by the geometric co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5e257587ae68fd38d659ae561d39af6
https://doi.org/10.1051/ro/2020016
https://doi.org/10.1051/ro/2020016
Publikováno v:
RAIRO - Operations Research. 50:157-173
The Fermat−Weber problem is a classical location problem that has the Weiszfeld algorithm as its main iterative solution method. This article presents a geometric interpretation of its local convergence for the particular case of three points, with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6391ac393440a6d07ac9cd1d129f78fd
https://doi.org/10.1051/ro/2015022
https://doi.org/10.1051/ro/2015022
Publikováno v:
Optimization Methods and Software. 30:391-403
We consider the problem of optimally covering solid bodies by a given number of spheres. The mathematical modelling of this problem leads to a min–max–min formulation which, in addition to its intrinsic multi-level nature, has the significant cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc584ac8b61e1b618ddd24ab2f873345
https://doi.org/10.1080/10556788.2014.934686
https://doi.org/10.1080/10556788.2014.934686
Autor:
Daniela Cristina Lubke, Vinicius Layter Xavier, Adilson Elias Xavier, Helder Manoel Venceslau
Publikováno v:
International Journal of Metaheuristics. 7:30
The use of the Flying Elephants Method engenders a simple one-level completely differentiable optimisation problem and allows overcoming the main difficulties presented by the original one. Computational results obtained for the covering of some soli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::706396d585cd9dac9766f1ce7477400c
https://doi.org/10.1504/ijmheur.2018.10012910
https://doi.org/10.1504/ijmheur.2018.10012910
Autor:
Leonidas Sakalauskas, Leonardo Nascimento, Adilson Elias Xavier, Helder Manoel Venceslau, Roger Rocha, Virgílio Ferreira Filho
Publikováno v:
International Workshop of "Stochastic Programming for Implementation and Advanced Applications".
Oil refining is a series of processes that aim to separate the crude oil into pre-standardized fractions. The way these processes can be combined result in a variety of schemes where each one can be used as a production plan. This work presents a met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23f595de5f5d344d8874192e708d1fbc
https://doi.org/10.5200/stoprog.2012.16
https://doi.org/10.5200/stoprog.2012.16