Country: Portugal

Found 202 papers in total
Optimal signal sets via semi-infinite programming
Optimal signal sets via semi-infinite programming
2002,
The optimal signal set problem has been formulated as a nonlinear programming problem...
Seismic alarm system based on local seismicity and recent seismic past
Seismic alarm system based on local seismicity and recent seismic past
2002,
A Seismic Alarm System for the Iberian Peninsula was proposed. Given the seismic...
Sensitivity to criteria weighting in an MCDM problem of water resources planning
Sensitivity to criteria weighting in an MCDM problem of water resources planning
2001,
Multicriteria Decision Making techniques are here applied to establish the volume of a...
An algorithm for calculating k shortest paths with a maximum number of arcs
An algorithm for calculating k shortest paths with a maximum number of arcs
2001,
In multiexchange telecommunication networks the problem of calculating shortest paths...
Fuzzy optimization with simulated annealing
Fuzzy optimization with simulated annealing
2001,
The Simulated Annealing (SA) algorithm is an adequate tool for solving fuzzy...
A general generator of project networks in terms of their morphological features
A general generator of project networks in terms of their morphological features
2001,
Most methods of project scheduling are based on algorithms (such as branch and bound...
The technical efficiency of the Portuguese post: A DEA methodology application
The technical efficiency of the Portuguese post: A DEA methodology application
2001,
The main purpose of this study is to measure the technical efficiency of the...
A case of integration GIS–DEA–MCDA: Measuring a university influence in the cities of the State of Rio de Janeiro
A case of integration GIS–DEA–MCDA: Measuring a university influence in the cities of the State of Rio de Janeiro
2001,
Widespread use of Data Envelopment Analysis is hampered by the difficulty felt by...
Regional disparities in continental Portugal: A multivariate statistical analysis
Regional disparities in continental Portugal: A multivariate statistical analysis
2001,
The aim of this article is to find a coherent socio-economic classification of the...
Simulation model for the management of a multi-echelon repairable item inventory system
Simulation model for the management of a multi-echelon repairable item inventory system
2001,
A lot of multi-echelon inventory models for repairable items have been developed for...
A new improvement for a K-shortest paths algorithm
A new improvement for a K-shortest paths algorithm
2001,
The K shortest paths problem is a well known network optimization problem where it is...
An algorithm for calculating K-shortest paths with a maximum number of arcs
An algorithm for calculating K-shortest paths with a maximum number of arcs
2001,
In multiexchange telecommunication networks the problem of calculating shortest paths...
Discretization methods for semi-infinite programming
Discretization methods for semi-infinite programming
2001,
Discretization methods represent an important class of methods to solve semi-infinite...
Multicriteria analysis for an aggregate planning production model
Multicriteria analysis for an aggregate planning production model
2001,
This paper presents a mixed integer multiple objective linear programming model in the...
A multiobjective model for energy planning based on input–output analysis – an application to the Portuguese case
A multiobjective model for energy planning based on input–output analysis – an application to the Portuguese case
2001,
A macro-level energy model and its application to energy planning in Portugal is...
Voice recognition using a fuzzy multiple attribute model
Voice recognition using a fuzzy multiple attribute model
2001,
In this work we use a multiple attribute fuzzy decision making method to recognize the...
Exact solution of multicommodity flow problems with branch-and-bound and column generation
Exact solution of multicommodity flow problems with branch-and-bound and column generation
2001,
We present a branch-and-price algorithm to solve the minimum cost multicommodity flow...
On the applicability of Karmarkar's algorithm
On the applicability of Karmarkar's algorithm
2000,
This paper presents an attempt undertaken in order to answer the question of the...
A fuzzy set-based decision making tool for the transportation network synchronous digital hierarchy planning
A fuzzy set-based decision making tool for the transportation network synchronous digital hierarchy planning
2000,
This work presents a mathematical formulation of the optimal p-hub allocation and...
The asymmetric travelling salesman problem: Lower bounds and a new separation algorithm
The asymmetric travelling salesman problem: Lower bounds and a new separation algorithm
2000,
Several integer programming formulations to the Asymmetric Travelling Salesman Problem...
Self concordance and damped Newton method
Self concordance and damped Newton method
2000,
In 1994 Nesterov and Nemirovskii introduced a unified theory of interior point methods...
Decaying inventory under price discount with exponential demand
Decaying inventory under price discount with exponential demand
2000,
In this paper, an attempt has been made to develop an inventory model by incorporating...
A software application for inventory management
A software application for inventory management
2000,
The article describes an application developed to support the inventory management of...
Stock decisions on slow moving spares
Stock decisions on slow moving spares
2000,
Holding engineering spare parts is often crucial for a sound maintenance policy. But...
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