Journal: 4OR

Found 137 papers in total
Speeding up Martins’ algorithm for multiple objective shortest path problems
Speeding up Martins’ algorithm for multiple objective shortest path problems
2013,
The latest transportation systems require the best routes in a large network with...
A modified scaled memoryless BFGS preconditioned conjugate gradient method for unconstrained optimization
A modified scaled memoryless BFGS preconditioned conjugate gradient method for unconstrained optimization
2013,
In order to propose a scaled conjugate gradient method, the memoryless BFGS...
Effect of global FCFS and relative load distribution in two‐class queues with dedicated servers
Effect of global FCFS and relative load distribution in two‐class queues with dedicated servers
2013,
In this paper, we investigate multi‐class multi‐server queueing systems...
Global optimization based on local searches
Global optimization based on local searches
2013,
In this paper we deal with the use of local searches within global optimization...
Bilevel programming and price setting problems
Bilevel programming and price setting problems
2013,
This paper is devoted to pricing optimization problems which can be modeled as bilevel...
Robust combinatorial optimization with variable budgeted uncertainty
Robust combinatorial optimization with variable budgeted uncertainty
2013,
We introduce a new model for robust combinatorial optimization where the uncertain...
A new model and a hyper‐heuristic approach for two‐dimensional shelf space allocation
A new model and a hyper‐heuristic approach for two‐dimensional shelf space allocation
2013,
In this paper, we propose a two‐dimensional shelf space allocation model. The...
Variable neighborhood search for the travelling deliveryman problem
Variable neighborhood search for the travelling deliveryman problem
2013,
A travelling deliveryman needs to find a tour such that the total waiting time of all...
Soft due window assignment and scheduling of unit‐time jobs on parallel machines
Soft due window assignment and scheduling of unit‐time jobs on parallel machines
2012,
We study problems of scheduling n unit‐time jobs on m identical parallel...
Minimizing the completion time of a project under resource constraints and feeding precedence relations: an exact algorithm
Minimizing the completion time of a project under resource constraints and feeding precedence relations: an exact algorithm
2012,
In this paper we study an extension of the Resource‐Constrained Project...
Semidefinite relaxations for partitioning, assignment and ordering problems
Semidefinite relaxations for partitioning, assignment and ordering problems
2012,
Semidefinite optimization is a strong tool in the study of NP‐hard...
On the calculation of stability radius for multi‐objective combinatorial optimization problems by inverse optimization
On the calculation of stability radius for multi‐objective combinatorial optimization problems by inverse optimization
2012,
This paper deals with stability analysis in multi‐objective combinatorial...
Relaxations of mixed integer sets from lattice‐free polyhedra
Relaxations of mixed integer sets from lattice‐free polyhedra
2012,
This paper gives an introduction to a recently established link between the geometry...
An adapted heuristic approach for a clustered traveling salesman problem with loading constraints
An adapted heuristic approach for a clustered traveling salesman problem with loading constraints
2012,
The joint optimization of routing and loading operations is crucial to fully optimize...
Bicriteria optimization in the newsvendor problem with uniformly distributed demand
Bicriteria optimization in the newsvendor problem with uniformly distributed demand
2012,
This paper analytically addresses the Bicriteria decision newsvendor problem of a...
Pricing and setup/closedown policies in unobservable queues with strategic customers
Pricing and setup/closedown policies in unobservable queues with strategic customers
2012,
In this paper we study unobservable Markovian queueing systems with three types of...
A characterisation of stable sets in preordered structure
A characterisation of stable sets in preordered structure
2012,
This article characterises stable sets in preordered sets. We show that every stable...
A simulated annealing hyper‐heuristic methodology for flexible decision support
A simulated annealing hyper‐heuristic methodology for flexible decision support
2012,
Most of the current search techniques represent approaches that are largely adapted...
Delay analysis of a discrete‐time multiclass slot‐bound priority system
Delay analysis of a discrete‐time multiclass slot‐bound priority system
2012,
This paper introduces a new priority mechanism in discrete‐time queueing...
Learning from conflicts in propositional satisfiability
Learning from conflicts in propositional satisfiability
2012,
Learning is a general concept, playing an important role in many Artificial...
Robust energy planning in buildings with energy and comfort costs
Robust energy planning in buildings with energy and comfort costs
2012,
Energy management in buildings is addressed in this paper. The energetic impact of...
Modeling, simulation and optimization in logistics
Modeling, simulation and optimization in logistics
2011,
This text summarizes the PhD thesis defended by the author in March 2009 under the...
A hyper‐solution framework for classification problems via metaheuristic approaches
A hyper‐solution framework for classification problems via metaheuristic approaches
2011,
This is a summary of the author’s PhD thesis, supervised by Prof. Domenico...
Combinatorial identification problems and graph powers
Combinatorial identification problems and graph powers
2011,
This is a summary of the author’s PhD thesis supervised by Pr. Olivier Hudry and...
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