Browsing by Subject "Optimització combinatòria"
Now showing items 1-20 of 59
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A biased random-key genetic algorithm for the capacitated minimum spanning tree problem
(2015-05)
Article
Open AccessThis paper focuses on the capacitated minimum spanning tree(CMST)problem.Given a central processor and a set of remote terminals with specified demands for traffic that must flow between the central processor and terminals,the ... -
A hybrid algorithm combining path scanning and biased random sampling for the Arc Routing Problem
(2011)
Conference report
Open AccessThe Arc Routing Problem is a kind of NP-hard routing problems where the demand is located in some of the arcs connecting nodes and should be completely served fulfilling certain constraints. This paper presents a hybrid ... -
A hybrid multi-start metaheuristic scheduler for astronomical observations
(Elsevier, 2023-11)
Article
Open AccessIn this paper, we investigate Astronomical Observations Scheduling which is a type of Multi-Objective Combinatorial Optimization Problem, and detail its specific challenges and requirements and propose the Hybrid Accumulative ... -
A Parameter-free approach for solving combinatorial optimization problems through biased randomization of efficient heuristics
(2011-01)
Article
Open AccessThis paper discusses the use of probabilistic or randomized algorithms for solving combinatorial optimization problems. Our approach employs non-uniform probability distributions to add a biased random behavior to classical ... -
A production scheduling service for manufacturing short-run series on machining shops
(Universitat Politècnica de Catalunya, 2019-09-29)
Master thesis
Restricted access - author's decisionThe scheduling process on every production line is of principal importance as it directly affects the productivity of a company. For decades now, operational research has offered managers tools to automate their scheduling ... -
A simulation-based optimisation for the stochastic green capacitated p-median problem
(OmniaScience, 2022-12)
Article
Open AccessPurpose: This paper aims to propose a new model called the stochastic green capacitated p-median problem with a simulation-based optimisation approach. An integer linear programming mathematical model is built considering ... -
A skeleton for the Tabu search metaheuristic with applications to problems in software engineering
(2001-06)
Research report
Open AccessWe present a C++ implementation of a skeleton for Tabu Search method. Tabu Search method is a well-known meta-heuristic that has proved successful for sub-optimally solving hard combinatorial optimization problems. Recently ... -
AntNetAlign: A software package for network alignment
(Elsevier, 2023-03)
Article
Open AccessIn this paper we introduce AntNetAlign, an open-source tool (written in C++) that implements an Ant Colony Optimization (ACO) for solving the Network Alignment (NA) problem, a well-known hard optimization problem with ... -
AntNetAlign: Ant colony optimization for network alignment
(2023-01)
Article
Open AccessNetwork Alignment (NA) is a hard optimization problem with important applications such as, for example, the identification of orthologous relationships between different proteins and of phylogenetic relationships between ... -
Aportaciones a la modelización y resolución del problema de reparto proporcional con aplicaciones a la organización
(Centre de Publicacions d'Abast (CPDA - ETSEIB), 1999-09-16)
Part of book or chapter of book
Open AccessEl problema del reparto proporcional ha sido estudiado principalmente en relación con el reparto de escaños en una cámara de representantes, pero tiene muchas otras aplicaciones, una de las cuales es la resolución del ... -
Behavioral Issues in Portfolio Decision Analysis
(Universitat Politècnica de Catalunya / Technical University Munich, 2011)
Master thesis (pre-Bologna period)
Restricted access - author's decision
Covenantee: Technische Universität MünchenIn this paper we address the question of how people make decisions in the context of a knapsack problem, which is a simplified version of a portfolio project management problem. We expect people to be influenced by the ... -
Branch and Win: OR tree search algorithms for solving combinatorial optimisation problems
(Sociedad Española de Estadística e Investigación Operativa, 2004-06)
Article
Open AccessCurrently, most combinatorial optimisation problems have to be solved, if the optimum solution is sought, using general techniques to explore the space of feasible solutions and, more specifically, through exploratory ... -
Centralized vs distributed resource allocation in multi cell OFDMA systems
(2011)
Conference report
Restricted access - publisher's policyRadio Resource Management with Inter-cell Interference Coordination (ICIC), is a key issue under investigation for next generation wireless systems such as Long Term Evolution (LTE). Although centralized resource allocation ... -
Computational improvements of microaggregation algorithms for the anonymization of large-scale datasets
(Universitat Politècnica de Catalunya, 2017-01)
Bachelor thesis
Open AccessThe technical contents of this work fall within the field of statistical disclosure control (SDC), which concerns the postprocessing of the demographic portion of the statistical results of surveys containing sensitive ... -
Construct, Merge, Solve and Adapt: Application to the repetition-free longest common subsequence problem
(2016-03)
Article
Open AccessIn this paper we present the application of a recently proposed, general, algorithm for combinatorial optimization to the repetition-free longest common subsequence problem. The applied algorithm, which is labelled Construct, ... -
Cross-conditional entropy and coherence analysis of pharmaco-EEG changes induced by alprazolam
(2012-03)
Article
Restricted access - publisher's policyRationale Quantitative analysis of electroencephalographic signals (EEG) and their interpretation constitute a helpful tool in the assessment of the bioavailability of psychoactive drugs in the brain. Furthermore, ... -
Distributed multi-target tracking in a wireless sensor network using diffusion strategies and adaptive combiners
(Universitat Politècnica de Catalunya, 2016-09)
Bachelor thesis
Restricted access - author's decision
Covenantee: Northeastern UniversityLas redes de sensores inalámbricos se han ido usando cada vez más en los últimos años debido a su capacidad de observar el entorno, procesar datos y tomar decisiones. Estas características han ganado importancia en el ... -
Efficient parallel LAN/WAN algorithms for optimization: The mallba project
(2006-06)
Article
Open AccessThe mallba project tackles the resolution of combinatorial optimization problems using generic algorithmic skeletons implemented in C++. A skeleton in the mallba library implements an optimization method in one of the three ... -
Empirically Adjusted Greedy Algoriths (EAGH): A new approach to solving combinatorial optimisation problems
(2005-10)
Research report
Open AccessA greedy heuristics to solve a given combinatorial optimisation problem can be seen as an element of an infinite set of heuristics, H, which is defined by a function that depends on several parameters. We propose a procedure ... -
Energy and Carbon emissions aware service allocation for Data Centers based on the Dynamic Bin Packing Problem
(Universitat Politècnica de Catalunya / Universität Mannheim, 2013-07-16)
Master thesis (pre-Bologna period)
Open Access[ANGLÈS] This project endeavours to develop strategies to allocate services in Data Centers in a collaborative relationship between the Data Centers and its users and Energy Providers. We study the implications of allowing ...