Belotti, Pietro Stidsen, Thomas K.

The all optical network using WDM and optical nodes (OXC's) seems to be a possibility in a near future. The consensus to day seems to be that optical wavelength conversions is un-realistic for several decades, hence wavelength blocking will happen in the all optical networks. A possible solution to this problem could be to include digital nodes (DX...

Belotti, Pietro Stidsen, Thomas K.

The all optical network using WDM and optical nodes (OXC's) seems to be a possibility in a near future. The consensus to day seems to be that optical wavelength conversions is un-realistic for several decades, hence wavelength blocking will happen in the all optical networks. A possible solution to this problem could be to include digital nodes (DX...

Belotti, Pietro Stidsen, Thomas K.

The all optical network using WDM and optical nodes (OXC's) seems to be a possibility in a near future. The consensus to day seems to be that optical wavelength conversions is un-realistic for several decades, hence wavelength blocking will happen in the all optical networks. A possible solution to this problem could be to include digital nodes (DX...

Belotti, Pietro Stidsen, Thomas K.

The all optical network using WDM and optical nodes (OXC's) seems to be a possibility in a near future. The consensus to day seems to be that optical wavelength conversions is un-realistic for several decades, hence wavelength blocking will happen in the all optical networks. A possible solution to this problem could be to include digital nodes (DX...

Belotti, Pietro Stidsen, Thomas K.

The all optical network using WDM and optical nodes (OXC's) seems to be a possibility in a near future. The consensus to day seems to be that optical wavelength conversions is un-realistic for several decades, hence wavelength blocking will happen in the all optical networks. A possible solution to this problem could be to include digital nodes (DX...

Belotti, Pietro Stidsen, Thomas K.

The all optical network using WDM and optical nodes (OXC's) seems to be a possibility in a near future. The consensus to day seems to be that optical wavelength conversions is un-realistic for several decades, hence wavelength blocking will happen in the all optical networks. A possible solution to this problem could be to include digital nodes (DX...

Belotti, Pietro Stidsen, Thomas K.

The all optical network using WDM and optical nodes (OXC's) seems to be a possibility in a near future. The consensus to day seems to be that optical wavelength conversions is un-realistic for several decades, hence wavelength blocking will happen in the all optical networks. A possible solution to this problem could be to include digital nodes (DX...

Degraeve, Zeger; 5653; Peeters, Marc;

In this paper we present a new method for solving the linear programming relaxation of the Cutting Stock Problem. The method is based on the relationship between column generation and Lagrange relaxation. We have called our method the Hybrid Simplex Method/Subgradient Optimization Procedure. We test our procedure on generated data sets and compare ...

Gülpinar, Nalân Mitra, Gautam Maros, Istvan
Published in
Top

Recently, linear programming problems with special structures have assumed growing importance in mathematical programming. It is well known that exploiting network structures within linear programs can lead to considerable improvement of the computational solution of large-scale linear programming problems. A linear program is said to contain an em...

Nunez, Manuel A. Freund, Robert M.
Published in
Mathematical Programming

Given a data instanced=(A, b, c) of a linear program, we show that certain properties of solutions along the central trajectory of the linear program are inherently related to the condition number C(d) of the data instanced=(A, b, c), where C(d) is a scale-invariant reciprocal of a closely-related measure ρ(d) called the “distance to ill-posedness”...