Fri, 13 Nov 2009 00:23:07 +0100Rework the MCF test file to help extending it (#180)
Peter Kovacs <kpeter@inf.elte.hu> [Fri, 13 Nov 2009 00:23:07 +0100] rev 818
Rework the MCF test file to help extending it (#180)

Fri, 13 Nov 2009 00:15:50 +0100Fixes in the heap concept to avoid warnings (#180)
Peter Kovacs <kpeter@inf.elte.hu> [Fri, 13 Nov 2009 00:15:50 +0100] rev 817
Fixes in the heap concept to avoid warnings (#180)

Fri, 13 Nov 2009 00:11:11 +0100Add citations to CycleCanceling (#180, #184)
Peter Kovacs <kpeter@inf.elte.hu> [Fri, 13 Nov 2009 00:11:11 +0100] rev 816
Add citations to CycleCanceling (#180, #184)

Fri, 13 Nov 2009 00:10:33 +0100Entirely rework cycle canceling algorithms (#180)
Peter Kovacs <kpeter@inf.elte.hu> [Fri, 13 Nov 2009 00:10:33 +0100] rev 815
Entirely rework cycle canceling algorithms (#180)

- Move the cycle canceling algorithms (CycleCanceling, CancelAndTighten)
into one class (CycleCanceling).
- Add a Method parameter to the run() function to be able to select
the used cycle canceling method.
- Use the new interface similarly to NetworkSimplex.
- Rework the implementations using an efficient internal structure
for handling the residual network.
This improvement made the codes much faster.
- Handle GEQ supply type (LEQ is not supported).
- Handle infinite upper bounds.
- Handle negative costs (for arcs of finite upper bound).
- Extend the documentation.

Fri, 13 Nov 2009 00:09:35 +0100Port cycle canceling algorithms from SVN -r3524 (#180)
Peter Kovacs <kpeter@inf.elte.hu> [Fri, 13 Nov 2009 00:09:35 +0100] rev 814
Port cycle canceling algorithms from SVN -r3524 (#180)

Thu, 12 Nov 2009 23:52:51 +0100Add citations to the scaling MCF algorithms (#180, #184)
Peter Kovacs <kpeter@inf.elte.hu> [Thu, 12 Nov 2009 23:52:51 +0100] rev 813
Add citations to the scaling MCF algorithms (#180, #184)
and improve the doc of their group.

Thu, 12 Nov 2009 23:49:05 +0100Small doc improvements + unifications in MCF classes (#180)
Peter Kovacs <kpeter@inf.elte.hu> [Thu, 12 Nov 2009 23:49:05 +0100] rev 812
Small doc improvements + unifications in MCF classes (#180)

Thu, 12 Nov 2009 23:45:15 +0100Small implementation improvements in MCF algorithms (#180)
Peter Kovacs <kpeter@inf.elte.hu> [Thu, 12 Nov 2009 23:45:15 +0100] rev 811
Small implementation improvements in MCF algorithms (#180)

- Handle max() as infinite value (not only infinity()).
- Better GEQ handling in CapacityScaling.
- Skip the unnecessary saturating operations in the first phase in
CapacityScaling.
- Use vector<char> instead of vector<bool> and vector<int> if it is
possible and it proved to be usually faster.

Thu, 12 Nov 2009 23:34:35 +0100More options for run() in scaling MCF algorithms (#180)
Peter Kovacs <kpeter@inf.elte.hu> [Thu, 12 Nov 2009 23:34:35 +0100] rev 810
More options for run() in scaling MCF algorithms (#180)

- Three methods can be selected and the scaling factor can be
given for CostScaling.
- The scaling factor can be given for CapacityScaling.

Thu, 12 Nov 2009 23:30:45 +0100Entirely rework CostScaling (#180)
Peter Kovacs <kpeter@inf.elte.hu> [Thu, 12 Nov 2009 23:30:45 +0100] rev 809
Entirely rework CostScaling (#180)

- Use the new interface similarly to NetworkSimplex.
- Rework the implementation using an efficient internal structure
for handling the residual network. This improvement made the
code much faster.
- Handle GEQ supply type (LEQ is not supported).
- Handle infinite upper bounds.
- Handle negative costs (for arcs of finite upper bound).
- Traits class + named parameter for the LargeCost type used in
internal computations.
- Extend the documentation.