http://repositorio.ufc.br/handle/riufc/72 Tue, 07 Apr 2026 13:17:34 GMT 2026-04-07T13:17:34Z http://repositorio.ufc.br/handle/riufc/41789 Título: On Cost based algorithm selection for problem solving Autor(es): Arruda, Edilson Fernandes de; Ourique, Fabrício de Oliveira; Almudevar, Anthony Editor(es): American Journal of Operations Research Abstract: This work proposes a novel framework that enables one to compare distinct iterative procedures with known rates of convergence, in terms of the computational effort to be employed to reach some prescribed vicinity of the optimal solution to a given problem of interest. An algorithm is introduced that decides between two competing algorithms, which algorithm makes the best use of the computational resources for some prescribed error. Several examples are presented that illustrate the trade-offs involved in such a choice and demonstrate that choosing an algorithm over another with a higher rate of convergence can be perfectly justifiable in terms of the overall computational effort. Tipo: Artigo de Periódico Tue, 01 Jan 2013 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/41789 2013-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/41786 Título: Reducción de modelos en la presencia de parámetros de perturbación Autor(es): Farias, Rafael Bráz Azevedo; Arenas, German Moreno; Patriota, Alexandre Galvão Tipo: Artigo de Periódico Thu, 01 Jan 2009 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/41786 2009-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/41778 Título: On the Harris-G class of distributions: General results and application Autor(es): Pinho, Luis Gustavo Bastos; Cordeiro, Gauss Moutinho; Nobre, Juvêncio Santos Abstract: We investigate some properties of the Harris-G class of distributions (Sankhya B 73 (2011) 70–80). We demonstrate that the density function of the Harris-G class can be expressed as a linear combination of density functions of the exponentiated baseline distribution. We provide general formulas for moments (raw, centered, incomplete and factorial), quantile function, generating functions and entropies. Two numerical examples are presented to demonstrate the potentiality of the models in this class. The first one applies the Harris–Burr XII distribution to model bimodal data. The second example uses the Harris-exponential distribution to model SAR image data. The results of the fitted models look promising. Tipo: Artigo de Periódico Thu, 01 Jan 2015 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/41778 2015-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/41773 Título: Um Algoritmo polinomial para o problema de empacotamento de contêineres com estabilidade estática da carga Autor(es): Silva, José Lassance de Castro; Soma, Nei Yoshihiro Abstract: A polynomial computational bounded resouces heuristic for the Three-Dimensional Bin Packing problem (3D-BPP) is suggested. The major contribution is the introduction of static stability of the packing and the criteria used for such a packing are described in details. The filling process follows the well known 3-D corner approach. The problem is NP-Hard in the strong sense and extremely difficult to be solved in the practice. Extensive computational experiments are also presented, with instances up to 90 items, with and without static stability. The results are compared with those obtained from the literature. Tipo: Artigo de Periódico Wed, 01 Jan 2003 00:00:00 GMT http://repositorio.ufc.br/handle/riufc/41773 2003-01-01T00:00:00Z