Country: Portugal

Found 202 papers in total
Nonlinear least squares methods and convergence
Nonlinear least squares methods and convergence
2000,
The nonlinear least squares problem is of practical importance specially in curve...
Measuring the efficiency of English secondary schools: An efficiency position approach by means of DEA
Measuring the efficiency of English secondary schools: An efficiency position approach by means of DEA
2000,
This paper outlines a DEA based approach to decompose overall measures of efficiency...
Management of a logistic
Management of a logistic
2000,
On the sequence of Portuguese liquefied petroleum gases (LPG) market liberalisation,...
Fuzzy decision making for distribution systems operational planning
Fuzzy decision making for distribution systems operational planning
2000,
This paper presents results of research associated with the development of decision...
A new shortest paths ranking algorithm
A new shortest paths ranking algorithm
2000,
Ranking shortest paths is a classical network problem consisting of the determination...
The ranking of K shortest paths
The ranking of K shortest paths
2000,
The K Shortest Paths Problem can be considered as a generalization of the classical...
Efficient resolutions of the single-item uncapacitated lot problem
Efficient resolutions of the single-item uncapacitated lot problem
2000,
Several resolution methods for the ‘economic lot sizing’, as presented by...
Decision support in logistics systems strategic planning
Decision support in logistics systems strategic planning
1999,
Logistics systems strategic planning involves simultaneous decisions about the supply...
Solution concepts for multiple objective n-person games
Solution concepts for multiple objective n-person games
1999,
Multiple criteria decision problems with one decision-maker haven been recognised and...
Integer solutions of multicriteria network flow problems
Integer solutions of multicriteria network flow problems
1999,
This paper is concerned with the solution of integer multicriteria network flow...
The multiobjective optimal path problem
The multiobjective optimal path problem
1999,
The multiobjective optimal path problem is viewed as the optimization of a function...
A random key based genetic algorithm for scheduling operations
A random key based genetic algorithm for scheduling operations
1999,
This paper presents a new genetic algorithm for scheduling operations. The chromosome...
Optimization of a municipal solid waste collection system
Optimization of a municipal solid waste collection system
1999,
This paper deals with a problem of organizing a solid waste collection system in...
A data envelopment analysis evaluation of the modernization of telecommunication services in OECD countries – the situation of Portugal
A data envelopment analysis evaluation of the modernization of telecommunication services in OECD countries – the situation of Portugal
1999,
DEA (Data Envelopment Analysis) is used as a tool to analyse and evaluate the present...
Derivate-free methods for unconstrained nonsmooth optimization and its numerical analysis
Derivate-free methods for unconstrained nonsmooth optimization and its numerical analysis
1999,
Numerical algorithms for solving the unconstrained problems of Lipschitz optimization...
A bayesian dynamic formulation to analyse extreme values
A bayesian dynamic formulation to analyse extreme values
1999,
The analysis of extreme values data via classical arguments makes a thorough use of...
Integer solutions of multicriteria network flow problems
Integer solutions of multicriteria network flow problems
1999,
This paper is concerned with the solution of integer multicriteria network flow...
The optimal path problem
The optimal path problem
1999,
In this paper, the optimal path problem will be studied from a global point of view...
Automatic reformulation for general mixed 0–1 linear programs
Automatic reformulation for general mixed 0–1 linear programs
1999,
The efficiency of solving mixed 0–1 linear programs by linear programming based...
Optimal scheduling for letter sorter machines
Optimal scheduling for letter sorter machines
1999,
In this paper three approaches are proposed to generate schedules for the letter...
Multicast routing tree optimisation
Multicast routing tree optimisation
1998,
High bandwidth networks allow new distributed applications which involve all the hosts...
A multiobjective linear programming method based on the projection of the objective function gradients
A multiobjective linear programming method based on the projection of the objective function gradients
1998,
This paper presents an interactive method for decision support to multiobjective...
The efficiency of optimization methods based on line searches
The efficiency of optimization methods based on line searches
1998,
In nonlinear multidimensional optimization line search techniques aim to compute an...
Characteristics and applications of random search methods for mathematical programming
Characteristics and applications of random search methods for mathematical programming
1998,
In this paper we discuss the development of the random search method for mathematical...
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