Matrix: Kemelmacher/Kemelmacher
Description: Computer vision problem. Ira Kemelmacher, Weizmann Inst., Israel
| Matrix properties | |
| number of rows | 28,452 |
| number of columns | 9,693 |
| nonzeros | 100,875 |
| structural full rank? | yes |
| structural rank | 9,693 |
| # of blocks from dmperm | 1 |
| # strongly connected comp. | 1 |
| entries not in dmperm blocks | 0 |
| explicit zero entries | 0 |
| nonzero pattern symmetry | 0% |
| numeric value symmetry | 0% |
| type | real |
| structure | rectangular |
| Cholesky candidate? | no |
| positive definite? | no |
| author | I. Kemelmacher |
| editor | T. Davis |
| date | 2005 |
| kind | computer graphics/vision problem |
| 2D/3D problem? | yes |
| Ordering statistics: | AMD | METIS |
| nnz(V) for QR, upper bound nnz(L) for LU | 14,353,815 | 10,877,547 |
| nnz(R) for QR, upper bound nnz(U) for LU | 857,817 | 825,051 |
Maintained by Tim Davis, last updated 05-Nov-2008.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.