Mittelmann/rail4284
Italian railways (H. Mittelmann test set)
| Name |
rail4284 |
| Group |
Mittelmann |
| Matrix ID |
1658 |
|
Num Rows
|
4,284 |
|
Num Cols
|
1,096,894 |
|
Nonzeros
|
11,284,032 |
|
Pattern Entries
|
11,284,032 |
|
Kind
|
Linear Programming Problem |
|
Symmetric
|
No |
|
Date
|
2005 |
|
Author
|
P. Nobili |
|
Editor
|
J. Beasley |
| Structural Rank |
4,284 |
| Structural Rank Full |
true |
|
Num Dmperm Blocks
|
1 |
|
Strongly Connect Components
|
5 |
|
Num Explicit Zeros
|
0 |
|
Pattern Symmetry
|
0% |
|
Numeric Symmetry
|
0% |
|
Cholesky Candidate
|
no |
|
Positive Definite
|
no |
|
Type
|
integer |
| SVD Statistics |
| Matrix Norm |
3.997818e+02 |
| Minimum Singular Value |
1.000000e+00 |
| Condition Number |
3.997818e+02
|
| Rank |
4,284 |
| sprank(A)-rank(A) |
0 |
| Null Space Dimension |
0 |
| Full Numerical Rank? |
yes |
| Download Singular Values |
MATLAB
|
| Download |
MATLAB
Rutherford Boeing
Matrix Market
|
| Notes |
Hans Mittelmann test set, http://plato.asu.edu/ftp/lptestset
minimize c'*x, subject to A*x=b and lo <= x <= hi
RAIL: set covering problems from the Italian railroad, see
http://people.brunel.ac.uk/~mastjjb/jeb/orlib/scpinfo.html
|
