Journal: Investigao Operacional

Found 215 papers in total
Teachers' perception and actual students ranking in performance appraisal
Teachers' perception and actual students ranking in performance appraisal
2004,
This paper intends to evaluate the academic evolution of an engineering students group...
A multiobjective model for the location of capacitors in radial distribution networks
A multiobjective model for the location of capacitors in radial distribution networks
2004,
The installation of shunt capacitors in electrical distribution networks can...
Lot sizing and scheduling in a large automated foundry
Lot sizing and scheduling in a large automated foundry
2004,
This work consists of a case study in a large foundry, which has three molding lines...
Graph-based structures for the market baskets analysis
Graph-based structures for the market baskets analysis
2004,
The market basket is defined as an itemset bought together by a customer on a single...
Performance of the truncated Newton method in unconstrained nonlinear optimization
Performance of the truncated Newton method in unconstrained nonlinear optimization
2004,
Newton's method for unconstrained nonlinear optimization can be a demanding iterative...
A smoothed frontier for the 3-dimensional BCC-DEA model
A smoothed frontier for the 3-dimensional BCC-DEA model
2004,
The multipliers DEA model has multiple optimal solutions in the extreme-efficient...
Factorial analysis applied to landscape metrics defined in FRAGSTATS
Factorial analysis applied to landscape metrics defined in FRAGSTATS
2004,
A program for spatial analysis based on a grid of pixels (FRAGSTATS 3.0) was used and...
A note on polynomially-solvable cases of common due date early–tardy scheduling with release dates
A note on polynomially-solvable cases of common due date early–tardy scheduling with release dates
2004,
In this paper we consider the single machine scheduling problem with integer release...
A multi-phase heuristic for the delivery pick-up vehicle-routing problem with time-windows
A multi-phase heuristic for the delivery pick-up vehicle-routing problem with time-windows
2004,
In this paper a new heuristic for the vehicle routing problem is presented. This...
Vehicle routing in a wood waste pickup system
Vehicle routing in a wood waste pickup system
2004,
In this paper, we analyze a new vehicle routing problem, the Prize Collecting Vehicle...
On the use of multiple financial methods in the evaluation and selection of investment projects
On the use of multiple financial methods in the evaluation and selection of investment projects
2004,
This paper addresses the analysis and evaluation of investment projects within a...
MICROPLANO – A decision support system for production planning in the plastic industry
MICROPLANO – A decision support system for production planning in the plastic industry
2003,
In this paper we introduce a production-scheduling problem in a Portuguese small...
A facility layout design support system
A facility layout design support system
2003,
The design of facility layouts involves a decision process which, due to its...
A genetic algorithm for the resource constrained project scheduling problem
A genetic algorithm for the resource constrained project scheduling problem
2003,
This paper presents a genetic algorithm for the Resource Constrained Project...
Step by step search for achievable intermediate targets in zero sum data envelopment analysis
Step by step search for achievable intermediate targets in zero sum data envelopment analysis
2003,
Classic DEA models do not assume any kind of production equilibrium for the whole set...
A genetic based approach to the vehicle routing problem
A genetic based approach to the vehicle routing problem
2003,
In its basic form the vehicle routing problem (VRP) consists of serving a set of...
Locomotives' operability simulation model
Locomotives' operability simulation model
2003,
Inventory management is an important area within the organizations since it determines...
A comparative analysis of the Markowitz and Konno portfolio selection models
A comparative analysis of the Markowitz and Konno portfolio selection models
2003,
In this paper Konno portfolio selection model is presented and compared with Markowitz...
A genetic based algorithm for the quadratic 0–1 problem
A genetic based algorithm for the quadratic 0–1 problem
2003,
In this work we present an algorithm to the unrestricted binary quadratic program....
An inventory model for deteriorating items with exponentially increasing demand and shortages under inflation and time discounting
An inventory model for deteriorating items with exponentially increasing demand and shortages under inflation and time discounting
2003,
A lot-size inventory model for deteriorating items is derived with exponentially...
The graph bisection minimization problem
The graph bisection minimization problem
2003,
A method of determining a lower bound for the graph bisection minimization problem is...
Optimal number of spare and optimal interval between overhauls for equipment group
Optimal number of spare and optimal interval between overhauls for equipment group
2003,
Any equipment during operation can fail or degrade with time. Therefore, it is...
An applied mathematical programming model to the Portuguese agricultural sector
An applied mathematical programming model to the Portuguese agricultural sector
2003,
This study evaluates the effects, in the Portuguese agricultural sector, of the Agenda...
Evaluation of a Brazilian university strategy aided by the joing utilization of Uta and MACBETH
Evaluation of a Brazilian university strategy aided by the joing utilization of Uta and MACBETH
2003,
Universidade Federal Fluminense (UFF) was created in the Municipality of Niteroi...
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