Nygreen Bjrn

Bjrn Nygreen

Information about the author Bjrn Nygreen will soon be added to the site.
Found 11 papers in total
Tactical planning of offshore petroleum production
Tactical planning of offshore petroleum production
2007
This paper describes a model for tactical planning of Norwegian petroleum production....
A multi-start local search heuristic for ship scheduling – a computational study
A multi-start local search heuristic for ship scheduling – a computational study
2007
We present a multi-start local search heuristic for a typical ship scheduling problem....
Market price calculations in restructured electricity markets
Market price calculations in restructured electricity markets
2003
In the traditional organisation of the power market, the generation Unit Commitment...
Constraint classification, preprocessing and a branch and relax approach to solving mixed integer programming models
Constraint classification, preprocessing and a branch and relax approach to solving mixed integer programming models
2000
Preprocessing in Integer Programming (IP) is acknowledged to be an analytical as well...
Modelling of augmented makespan assignment problems: Computational experience of applying integer presolve at the modelling stage
Modelling of augmented makespan assignment problems: Computational experience of applying integer presolve at the modelling stage
1998
An Augmented Makespan Assignment Problem (AMAP), which is a variation of the...
Modeling Norwegian petroleum production and transportation
Modeling Norwegian petroleum production and transportation
1998
In the continental shelf off the coast of Norway, there are several petroleum fields...
Modelling path flows for a combined ship routing and inventory management problem
Modelling path flows for a combined ship routing and inventory management problem
1998
We consider a combined time constrained ship routing and inventory management problem....
A method for solving ship routing problems with inventory constraints
A method for solving ship routing problems with inventory constraints
1998
We present an optimisation-based solution approach for a real ship planning problem,...
Well management in the North Sea
Well management in the North Sea
1993
The purpose of this paper is to describe a planning model for the management of...
Solving integer programs with a few important binary gub constraints
Solving integer programs with a few important binary gub constraints
1993
During a branch and bound search of an integer program, decisions have to be taken...
Branch and bound with estimation based on pseudo-shadow-prices
Branch and bound with estimation based on pseudo-shadow-prices
1991
During a branch and bound search of an integer programme, variables may be declared...
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