| Paper ID | MLSP-6.3 |
| Paper Title |
REST: Robust Learned Shrinkage-Thresholding network taming inverse problems with model mismatch |
| Authors |
Wei Pu, Chao Zhou, University College London, United Kingdom; Yonina C. Eldar, Weizmann Institute of Science, Israel; Miguel R.D. Rodrigues, University College London, United Kingdom |
| Session | MLSP-6: Compressed Sensing and Learning |
| Location | Gather.Town |
| Session Time: | Tuesday, 08 June, 14:00 - 14:45 |
| Presentation Time: | Tuesday, 08 June, 14:00 - 14:45 |
| Presentation |
Poster
|
| Topic |
Machine Learning for Signal Processing: [SMDSP-SAP] Sparsity-aware processing |
| IEEE Xplore Open Preview |
Click here to view in IEEE Xplore |
| Virtual Presentation |
Click here to watch in the Virtual Conference |
| Abstract |
We consider compressive sensing problems with model mismatch where one wishes to recover a sparse high-dimensional vector from low-dimensional observations subject to uncertainty in the measurement operator. In particular, we design a new robust deep neural network architecture by applying algorithm unfolding techniques to a robust version of the underlying recovery problem. Our proposed network -- named Robust lErned Shrinkage-Thresholding (REST) -- exhibits additional features including enlarged number of parameters and normalization processing compared to state-of-the-art deep architecture Learned Iterative Shrinkage-Thresholding Algorithm (LISTA), leading to the reliable recovery of the signal under sample-wise varying model mismatch. Our proposed network is also shown to outperform LISTA in compressive sensing problems under sample-wise varying model mismatch. |
