Research Article
A Modified Spectral PRP Conjugate Gradient Projection Method for Solving Large-Scale Monotone Equations and Its Application in Compressed Sensing
Table 5
Numerical performance in singular case.
| Problem | Dim | Method | CPU-time | Ni | Nf |
| P7 | 500 | MPPRP-M | 0.907980 | 6684 | 20055 | | | MPPRP-W | 0.823281 | 6684 | 20055 | | | MSDFPB | 1.063594 | 6684 | 20055 | | | PRP | 0.801892 | 6695 | 20088 | | | MPRP | 0.856992 | 6684 | 20055 | | | TPRP | 0.892188 | 6684 | 20055 | | | DFPB1 | 0.906388 | 6690 | 20073 | | | DFPB2 | 0.894474 | 6684 | 20055 | | | MHS | 1.045179 | 6684 | 20055 | P7 | 1000 | MPPRP-M | 1.742640 | 8424 | 25275 | | | MPPRP-W | 1.787419 | 8424 | 25275 | | | MSDFPB | 2.140070 | 8424 | 25275 | | | PRP | 1.773320 | 8435 | 25308 | | | MPRP | 1.878275 | 8424 | 25275 | | | TPRP | 1.856212 | 8424 | 25275 | | | DFPB1 | 1.855210 | 8430 | 25293 | | | DFPB2 | 1.869769 | 8424 | 25275 | | | MHS | 2.085814 | 8424 | 25275 | P7 | 2000 | MPPRP-M | 3.712167 | 10616 | 31851 | | | MPPRP-W | 4.182644 | 10616 | 31851 | | | MSDFPB | 4.622078 | 10617 | 31855 | | | PRP | 4.465109 | 10628 | 31888 | | | MPRP | 4.716474 | 10617 | 31855 | | | TPRP | 5.772379 | 10617 | 31855 | | | DFPB1 | 5.357838 | 10622 | 31870 | | | DFPB2 | 4.663553 | 10616 | 31852 | | | MHS | 5.737888 | 10617 | 31855 | P7 | 5000 | MPPRP-M | 20.734981 | 14412 | 43239 | | | MPPRP-W | 21.112604 | 14413 | 43243 | | | MSDFPB | 23.963617 | 14414 | 43252 | | | PRP | 22.231907 | 14425 | 43283 | | | MPRP | 23.381419 | 14414 | 43252 | | | TPRP | 23.871918 | 14414 | 43252 | | | DFPB1 | 23.222197 | 14420 | 43269 | | | DFPB2 | 23.300951 | 14414 | 43252 | | | MHS | 25.432421 | 14414 | 43252 |
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