Journal: Investigao Operacional

Found 215 papers in total
A simulation model of the road traffic on the ‘25 de Abril’ bridge
A simulation model of the road traffic on the ‘25 de Abril’ bridge
1995,
In this paper the authors present one simulation model of the road traffic flow on...
Organisational experts-The social context of expertise
Organisational experts-The social context of expertise
1995,
Decision support system (DSS) and expert system (ES) construction attempts to make...
Filtering in multicriteria discrete problems: An approach
Filtering in multicriteria discrete problems: An approach
1995,
Most real-world applications, specially selection problems, can be modeled as a...
SIMON, a generic simulation tool for the dairy industry
SIMON, a generic simulation tool for the dairy industry
1995,
In this paper a generic simulation tool for modelling production in dairies is...
Handling large data systems in primary care
Handling large data systems in primary care
1995,
Health Systems performance depends on several factors (social, economical, etc.). This...
Time to deplete a resource with Gamma usage
Time to deplete a resource with Gamma usage
1995,
Many situations arise where a given resource is depleted according to a usage variable...
Crew scheduling-An approach based on several heuristics
Crew scheduling-An approach based on several heuristics
1995,
The work described in this paper was developed in co-operation with the Lisbon Metro...
How to teach/learn OR?
How to teach/learn OR?
1995,
Behind the question formulated in this paper lies more fundamental ones: What is OR?...
A new approach (MACBETH) to the problem of constructing a cardinal value function
A new approach (MACBETH) to the problem of constructing a cardinal value function
1995,
Classical techniques for cardinal measurement of values, such as direct rating and...
Look-ahead dispatching rules for scheduling manufacturing operations
Look-ahead dispatching rules for scheduling manufacturing operations
1995,
Industries manufacturing a wide range of products and using multi-stage processing...
A logistic regression function applied to the study of educational failure
A logistic regression function applied to the study of educational failure
1995,
This paper presents the main results of a study on the educational failure rate at the...
Electric distribution system planning with fuzzy injections
Electric distribution system planning with fuzzy injections
1995,
Electric distribution planning problem deals with a great number of variables, integer...
Multiple criteria decision making in forestry planning: A critical review
Multiple criteria decision making in forestry planning: A critical review
1995,
The management of forestry resources is a clear multicriteria problem aimed at...
A crew rostering support system
A crew rostering support system
1995,
This work describes a decision support system for crew rostering for urban transport...
Principal pivoting algorithms for a concave generalized linear complementarity problem
Principal pivoting algorithms for a concave generalized linear complementarity problem
1994,
The authors discuss a single and a block principal pivoting algorithms for the...
A study of Newton’s method for unconstrained optimization
A study of Newton’s method for unconstrained optimization
1994,
This paper discusses the use of the Newton’s method in unconstrained...
A Decision Support System for production planning
A Decision Support System for production planning
1994,
The paper presents a Decision Support System (DSS) for production planning of...
Introduction to DEA-Data Envelopment Analysis
Introduction to DEA-Data Envelopment Analysis
1994,
The objective of this tutorial on Data Envelopment Analysis is to introduce this...
A tabu search heuristic for a vehicle routing problem
A tabu search heuristic for a vehicle routing problem
1994,
The purpose of this paper is to describe a new tabu search heuristic for the vehicle...
Genetic algorithms in optimal electric and gas distribution network planning
Genetic algorithms in optimal electric and gas distribution network planning
1994,
This paper presents a new comprehensive methodology based on genetic algorithms for...
Conception of a ‘good’ alternative for the railway link to the port of Lisbon: An application of the multicriteria decision aid methodology
Conception of a ‘good’ alternative for the railway link to the port of Lisbon: An application of the multicriteria decision aid methodology
1994,
The construction of a new railway link to the port of Lisbon has been postponed many...
Heuristics for scheduling tasks in a job-shop
Heuristics for scheduling tasks in a job-shop
1994,
The scheduling of operations in industrial environment is often modelled as a job-shop...
Mathematical programming for the optimization of pre-stressed concrete
Mathematical programming for the optimization of pre-stressed concrete
1994,
A mathematical model for the optimum design of the tendon configurations in...
The role of Operational Research OR models in traffic management
The role of Operational Research OR models in traffic management
1994,
Modern Traffic Management Systems are envisaged as Decision Support Systems assisting...
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