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Start Over Search Limiters Available in Library Collection Topic algorithms Topic mathematical optimization Publication Year Range Last 10 years Language spanish Publication Type eBooks Publisher departamento de matematica aplicada facultad de matematica y computacion universidad de la habana
2 results

1. UN ENFOQUE MULTIOBJETIVO AL ALINEAMIENTO MÚTIPLE DE SECUENCIAS.

Author

Zambrano-Vega, Cristian, Oviedo, Byron, and Moncayo, Oscar

Subjects
*BIOINFORMATICS, *MATHEMATICAL optimization, *ALGORITHMS, *SOFTWARE development tools, *BIOMATHEMATICS
Abstract

Multiple Sequence Alignment (MSA) is one of the main topics in the in bioinformatics domain, consists finding an optimal alignment for three or more biological sequences with the number maximum of conserved zones or totally aligned columns. Different scores to assess the quality of the alignments have been proposed, so the problem can be formulated and resolved as a Multi-Objective Optimization Problem (MOP). For this reason, in this paper we present a Multi- Objective approach applied to MSA. We have considered state-of-the-art optimization algorithms aimed at solving different formulations of the MSA: NSGAII, NSGA-III, SPEA2, MOCell, SMS-EMOA, MOEA/D and GWASF-GA. Furthermore we have considered some popular metrics as objectives to be optimized: The weighted Sum-Of-Pairs with a ne gap penalties (wSOP), the Totally Aligned Columns (TC), STRIKE and BaliScore. Finally we have described the main features of our software jMetalMSA, a Multi-Objective optimization software tool applied to MSA problem and illustrated a working example for experimentations purposes. [ABSTRACT FROM AUTHOR]

Published
2020

2. ALGORITMO DE ESTIMACIÓN DE DISTRIBUCIÓN CON TRATAMIENTO DE RESTRICCIONES EN EL MODELO PROBABILÍSTICO EN PROBLEMAS DE SCHEDULING.

Author

Mahdi, Gaafar Sadeq S., Hassan Al-subhi, Salah, García Vacacela, Roberto, Pérez Pupo, Iliana, Madera Quintana, Julio, and Piñero Pérez, Pedro

Subjects
*PROJECT management, *ALGORITHMS, *MATHEMATICAL optimization, *PROBABILISTIC databases, *RENEWABLE natural resources
Abstract

Proper management of projects has become an element of vital importance for the solution to problems of society. In this context, there are two main objectives to be solved: the construction of project plans which may comply with the constraints of the problem and the optimization in terms of cost and time of those plans. To this end, all activities of project must be organized in such way that the constraints related to the precedence among them and the availability of renewable and non-renewable resources at each instant of time are met. The aim of this paper is to present an Estimation of Distribution Algorithm (EDA), which incorporates the handling of the constraints in the probabilistic model, for the construction of optimal or quasi-optimal project plans. For the validation of the algorithm, authors used both the PSPLib database repository for the development of the scheduling research and the databases of projects of the Repository for Research in Project Management, University of Infomatic Sciences. [ABSTRACT FROM AUTHOR]

Published
2019