Submitter | Variables | Constraints | Density | Status | Group | Objective | MPS File |
---|---|---|---|---|---|---|---|
MIPLIB submission pool | 6621 | 735 | 4.58777e-02 | easy | – | 51200 | nsrand-ipx.mps.gz |
Imported from the MIPLIB2010 submissions.
Detailed explanation of the following tables can be found here.
Original | Presolved | |
---|---|---|
Variables | 6621 | 6621 |
Constraints | 735 | 721 |
Binaries | 6620 | 6620 |
Integers | 0 | 0 |
Continuous | 1 | 1 |
Implicit Integers | 0 | 0 |
Fixed Variables | 0 | 0 |
Nonzero Density | 0.0458777 | 0.0458217 |
Nonzeroes | 223261 | 218741 |
Original | Presolved | |
---|---|---|
Total | 735 | 721 |
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 | 331 | 331 |
Set Covering | 0 | 51 |
Cardinality | 0 | 0 |
Invariant Knapsack | 0 | 0 |
Equation Knapsack | 0 | 0 |
Bin Packing | 0 | 0 |
Knapsack | 0 | 0 |
Integer Knapsack | 0 | 0 |
Mixed Binary | 404 | 339 |
General Linear | 0 | 0 |
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 | 2.521138 | ||||
Constraint % | 0.138696 | 0.138696 | 0.138696 | 0.138696 | |
Variable % | 0.302069 | 0.302069 | 0.302069 | 0.302069 | |
Score | 0.457698 |
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 | 51200 | 51200 | 0 | 0 | 0 | - | 2018-10-11 | Solution found during MIPLIB2017 problem selection. |
The following instances are most similar to nsrand-ipx 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 |
---|---|---|---|---|---|---|---|---|---|---|---|
neos6 | easy | 8786 | 8340 | 0 | 446 | 1036 | 251946 | NEOS Server Submission | neos-pseudoapplication-47 | 83 | benchmark_suitable set_packing set_covering invariant_knapsack knapsack mixed_binary |
n2seq36f | easy | 8100 | 8100 | 0 | 0 | 285 | 60948 | R. Meirich | nseq | 52200 | binary decomposition benchmark_suitable set_packing set_covering mixed_binary |
bppc4-08 | easy | 1456 | 1454 | 0 | 2 | 111 | 23964 | Manuel Iori | bppc | 53 | benchmark benchmark_suitable set_partitioning mixed_binary |
neos-911970 | easy | 888 | 840 | 0 | 48 | 107 | 3408 | NEOS Server Submission | neos-pseudoapplication-70 | 54.76 | benchmark benchmark_suitable set_partitioning set_covering mixed_binary |
probportfolio | hard | 320 | 300 | 0 | 20 | 302 | 6620 | Feng Qiu | – | 16.734246764 | invariant_knapsack mixed_binary |
No bibliographic information available