Submitter | Variables | Constraints | Density | Status | Group | Objective | MPS File |
---|---|---|---|---|---|---|---|
M. Lübbecke | 6097 | 486 | 2.67122e-02 | easy | blp | 2342.315488 | blp-ir98.mps.gz |
Railway line planning instance Imported from the MIPLIB2010 submissions.
Detailed explanation of the following tables can be found here.
Original | Presolved | |
---|---|---|
Variables | 6097 | 6096 |
Constraints | 486 | 486 |
Binaries | 6031 | 6031 |
Integers | 0 | 64 |
Continuous | 66 | 1 |
Implicit Integers | 0 | 64 |
Fixed Variables | 1 | 0 |
Nonzero Density | 0.0267122 | 0.0267162 |
Nonzeroes | 79152 | 79151 |
Original | Presolved | |
---|---|---|
Total | 486 | 486 |
Empty | 0 | 0 |
Free | 0 | 0 |
Singleton | 0 | 0 |
Aggregations | 0 | 0 |
Precedence | 0 | 0 |
Variable Bound | 0 | 0 |
Set Partitioning | 0 | 0 |
Set Packing | 420 | 420 |
Set Covering | 0 | 0 |
Cardinality | 0 | 0 |
Invariant Knapsack | 0 | 0 |
Equation Knapsack | 0 | 1 |
Bin Packing | 0 | 0 |
Knapsack | 0 | 0 |
Integer Knapsack | 0 | 0 |
Mixed Binary | 66 | 1 |
General Linear | 0 | 64 |
Indicator | 0 | 0 |
Available nonzero structure and decomposition information. Further information can be found here.
Decomposed structure of original problem (dec-file)
Decomposed structure after trivial presolving (dec-file)
value | min | median | mean | max | |
---|---|---|---|---|---|
Components | 2.624282 | ||||
Constraint % | 0.2057610 | 0.205761 | 0.205761 | 0.205761 | |
Variable % | 0.0492045 | 0.235518 | 0.229621 | 0.295227 | |
Score | 0.862162 |
Find solutions below. Download the archive containing all solutions from the Download page.
ID | Objective | Exact | Int. Viol | Cons. Viol | Obj. Viol | Submitter | Date | Description |
---|---|---|---|---|---|---|---|---|
1 | 2342.315 | 2342.315 | 0 | 1.2e-05 | 1.2e-05 | - | 2018-10-11 | Solution found during MIPLIB2017 problem selection. |
The following instances are most similar to blp-ir98 in the collection. This similarity analysis is based on 100 scaled instance features describing properties of the variables, objective function, bounds, constraints, and right hand sides.
Instance | Status | Variables | Binaries | Integers | Continuous | Constraints | Nonz. | Submitter | Group | Objective | Tags |
---|---|---|---|---|---|---|---|---|---|---|---|
blp-ar98 | easy | 16021 | 15806 | 0 | 215 | 1128 | 200601 | M. Lübbecke | blp | 6205.2147104 | benchmark decomposition benchmark_suitable variable_bound set_packing equation_knapsack mixed_binary general_linear |
blp-ic98 | easy | 13640 | 13550 | 0 | 90 | 717 | 191947 | M. Lübbecke | blp | 4491.44758395 | benchmark decomposition benchmark_suitable set_packing mixed_binary general_linear |
blp-ic97 | easy | 9845 | 9753 | 0 | 92 | 923 | 118149 | M. Lübbecke | blp | 4025.023580799999 | decomposition benchmark_suitable set_packing mixed_binary general_linear |
neos-3116779-oban | easy | 5141 | 5140 | 0 | 1 | 328 | 20561 | Jeff Linderoth | neos-pseudoapplication-26 | 0 | decomposition set_packing knapsack general_linear |
neos-4409277-trave | hard | 14363 | 14362 | 0 | 1 | 7875 | 204518 | Jeff Linderoth | neos-pseudoapplication-47 | 3 | variable_bound set_partitioning set_packing set_covering cardinality invariant_knapsack mixed_binary |
No bibliographic information available