Browsing Biltoki by Author "Garin, Maria Araceli"
Now showing items 1-15 of 15
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A note on Lopez-Hernandez procedure: New non-hierarchical algorithms in classification of data
[EN] In this short note, we make a critique about the procedure developed in the Inductive Algorithm in the Objects of Lopez-Hernandez (1997). It is well known that the determination of maximal cliques in a graph is an ... -
A note on the implementation of the BFC-MSMIP algorithm in C++ by using COIN-OR as an optimization engine
Escudero Bueno, Laureano F.; Garín Martín, María Araceli ; Merino Maestre, María ; Pérez Sainz de Rozas, Gloria (2010)The aim of this technical report is to present some detailed explanations in order to help to understand and use the algorithm Branch and Fix Coordination for solving MultiStage Mixed Integer Problems (BFC- MSMIP). We have ... -
A parallelizable algorithmic framework for solving large scale multi-stage stochastic mixed 0-1 problems under uncertainty
Escudero Bueno, Laureano F.; Garín Martín, María Araceli ; Merino Maestre, María ; Pérez Sainz de Rozas, Gloria (2011-02)In this paper we present a parallelizable scheme of the Branch-and-Fix Coordination algorithm for solving medium and large scale multi-stage mixed 0-1 optimization problems under uncertainty. The uncertainty is represented ... -
A two-stage stochastic integer programming approach
Escudero Bueno, Laureano F.; Garín Martín, María Araceli ; Merino Maestre, María ; Pérez Sainz de Rozas, Gloria (2005)We present an algorithmic approach for solving two-stage stochastic mixed 0-1 problems. The first stage constraints of the Deterministic Equivalent Model have 0--1 variables and continuous variables. The approach uses the ... -
Generating cluster submodels from a multistage stochastic mixed integer optimization model using break stage
Aldasoro Marcellan, Unai; Garín Martín, María Araceli ; Merino Maestre, María ; Pérez Sainz de Rozas, Gloria (2013-07)We present a scheme to generate clusters submodels with stage ordering from a (symmetric or a nonsymmetric one) multistage stochastic mixed integer optimization model using break stage. We consider a stochastic model ... -
Generating cluster submodels from two-stage stochastic mixed integer optimization models
Stochastic optimization problems of practical applications lead, in general, to some large models. The size of those models is linked to the number of scenarios that defines the scenario tree. This number of scenarios can ... -
Lagrangean decomposition for large-scale two-stage stochastic mixed 0-1 problems
Escudero Bueno, Laureano F.; Garín Martín, María Araceli ; Pérez Sainz de Rozas, Gloria ; Unzueta Inchaurbe, Aitziber (2010-07)In this paper we study solution methods for solving the dual problem corresponding to the Lagrangean Decomposition of two stage stochastic mixed 0-1 models. We represent the two stage stochastic mixed 0-1 problem by a ... -
Motivación de los estudiantes de LE y LADE ante el estudio de la Estadística
El objetivo fundamental de este trabajo es analizar las motivaciones dominantes en los alumnos de las Licenciaturas de Economía (LE) y Administración y Dirección de Empresas (LADE)a la hora de enfrentarse a las asignaturas ... -
MPI parallel programming of mixed integer optimization problems using CPLEX with COIN-OR
Aldasoro Marcellan, Unai; Garín Martín, María Araceli ; Merino Maestre, María ; Pérez Sainz de Rozas, Gloria (2012)The aim of this technical report is to present some detailed explanations in order to help to understand and use the Message Passing Interface (MPI) parallel programming for solving several mixed integer optimization ... -
On downloading and using COIN-OR for solving linear/integer optimization problems
The aim of this technical report is to present some detailed explanations in order to help to use the open source software for optimization COIN-OR. In particular, we describe how to download, install and use the corresponding ... -
On Downloading and Using CPLEX within COIN-OR for Solving Linear/Integer Optimization Problems
The aim of this technical report is to present some detailed explanations in order to use the solver CPLEX within COIN-OR environment. In particular, we describe how to download, install and use the corresponding source ... -
On solving two stage stochastic linear problems by using a new approach, Cluster Benders Decomposition
Aranburu Laka, Larraitz; Escudero Bueno, Laureano F.; Garín Martín, María Araceli ; Pérez Sainz de Rozas, Gloria (2010-11)The optimization of stochastic linear problems, via scenario analysis, based on Benders decomposition requires to appending feasibility and/or optimality cuts to the master problem until the iterative procedure reaches the ... -
Risk management for mathematical optimization under uncertainty
Aranburu Laka, Larraitz; Escudero Bueno, Laureano F.; Garín Martín, María Araceli ; Merino Maestre, María ; Pérez Sainz de Rozas, Gloria (2016)We present a general multistage stochastic mixed 0-1 problem where the uncertainty appears everywhere in the objective function, constraints matrix and right-hand-side. The uncertainty is represented by a scenario tree ... -
Scenario Cluster Lagrangian Decomposition in two stage stochastic mixed 0-1 optimization
Escudero Bueno, Laureano F.; Garín Martín, María Araceli ; Pérez Sainz de Rozas, Gloria ; Unzueta Inchaurbe, Aitziber (2012)In this paper we introduce four scenario Cluster based Lagrangian Decomposition (CLD) procedures for obtaining strong lower bounds to the (optimal) solution value of two-stage stochastic mixed 0-1 problems. At each iteration ... -
Some experiments on solving multistage stochastic mixed 0-1 programs with time stochastic dominance constraints
Escudero Bueno, Laureano F.; Garín Martín, María Araceli ; Merino Maestre, María ; Pérez Sainz de Rozas, Gloria (2015)In this work we extend to the multistage case two recent risk averse measures for two-stage stochastic programs based on first- and second-order stochastic dominance constraints induced by mixed-integer linear recourse. ...