Journal: Ricerca Operativa

Found 119 papers in total
A decision method to evaluate oil and gas development systems
A decision method to evaluate oil and gas development systems
1997,
In this paper we evaluate some possible systems for the development of oil and gas...
Parallel computational issues for box constrained quadratic programming
Parallel computational issues for box constrained quadratic programming
1997,
This paper deals with the solution of Box-Constrained Quadratic Programming problems...
Mean-variance-skewness analysis in portfolio choice and capital markets
Mean-variance-skewness analysis in portfolio choice and capital markets
1998,
We propose a portfolio selection model in a single-period setting which takes into...
‘Strong’–‘weak’ chain constrained scheduling
‘Strong’–‘weak’ chain constrained scheduling
1997,
In this paper we introduce a distinction between the weak and strong modes of...
Effective linear programming heuristics for a portfolio selection problem
Effective linear programming heuristics for a portfolio selection problem
1997,
The problem of selecting a portfolio has been largely faced in terms of minimizing the...
Optimisation problems in mobile networks planning
Optimisation problems in mobile networks planning
1998,
In this paper we present three planning problems in the field of Radio Mobile Systems,...
Integer programming for solving the course timetabling problem
Integer programming for solving the course timetabling problem
1997,
The Course Timetabling Problem (CTP) is the problem of scheduling a set of meetings...
Political districting: Traps, criteria, algorithms and tradeoffs
Political districting: Traps, criteria, algorithms and tradeoffs
1997,
In modern democracies, political districting has often been flawed by manipulation...
Equivalence and dominance for problems of optimal packing of rectangles
Equivalence and dominance for problems of optimal packing of rectangles
1997,
In this paper we consider the problem of optimal packing of small rectangles within a...
Minimizing the flow time and the lateness on a processor with a varying speed
Minimizing the flow time and the lateness on a processor with a varying speed
1997,
In the paper the problems of scheduling on a single processor with varying speed are...
On planning the optimal supply of hospital beds
On planning the optimal supply of hospital beds
1998,
Due to the highly stochastic nature of admission demand, hospitals must have a...
Public versus private hospitals: An assessment of technical efficiency
Public versus private hospitals: An assessment of technical efficiency
1997,
This study measures technical efficiency of Italian hospitals in 1992 through Data...
AIDS policy modeling: A social role for operations research
AIDS policy modeling: A social role for operations research
1997,
Some 17 million people worldwide are infected with HIV, the virus that causes AIDS....
A constrained optimization approach to the control of a phased array radiofrequency hyperthermia system
A constrained optimization approach to the control of a phased array radiofrequency hyperthermia system
1998,
Hyperthermia is an antitumoral therapeutic treatment used together with other...
HiCAT: A market share, simple connection-based timetable generation model for an airline
HiCAT: A market share, simple connection-based timetable generation model for an airline
1997,
This paper describes a system developed by Alitalia's operational research group for...
PROMETHEE and GAIA in a multi-decision maker environment
PROMETHEE and GAIA in a multi-decision maker environment
1996,
PROMETHEE and GAIA are multicriteria decision aidmethods that have been developed a...
Deriving weights from pair-wise comparison matrices by goal programming
Deriving weights from pair-wise comparison matrices by goal programming
1996,
Derivation of weights from pairwise comparison matrices (PCMs) is the most important...
The hypergraph simplex approach: some experimental results
The hypergraph simplex approach: some experimental results
1996,
We consider the Hypergraph Simplex approach recently proposed for the Minimum Cost...
Perfect, ideal and balanced matrices
Perfect, ideal and balanced matrices
1996,
In this paper, we survey results and open problems about perfect, ideal and balanced...
Between two stools: A possible future for operational research
Between two stools: A possible future for operational research
1996,
Operational Research has been balancing precariously between two roles and their...
Operations research: The challenge of complexity
Operations research: The challenge of complexity
1996,
I would like to begin with a semantic analysis of the theme of this conference:...
Reduction test for the p-median problem
Reduction test for the p-median problem
1996,
Preprocessing plays a crucial role in solving combinatorial optimization problems. It...
Odd cutsets, odd cycles and 0–1/2 Chvátal–Gomory cuts
Odd cutsets, odd cycles and 0–1/2 Chvátal–Gomory cuts
1996,
We address 0–1/2 Chvátal–Gomory (C-G) cuts, a subclass of the...
Submodularity in competitive location models
Submodularity in competitive location models
1996,
Most locational models assume that nodes are allocated to services according to a 0/1...
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