A dual approach to PhaseLift via gauge programming and bundle methods
Title | A dual approach to PhaseLift via gauge programming and bundle methods |
Publication Type | Presentation |
Year of Publication | 2013 |
Authors | Ives Macedo, Michael P. Friedlander, Felix J. Herrmann |
Keywords | Presentation, SINBAD, SINBADFALL2013, SLIM |
Abstract | A feature common to many sparse optimization problems is that the number of variables may be significantly larger than the number of constraints- e.g., the matrix-lifting approach taken by PhaseLift for phase retrieval results in a problem where the number of variables is quadratic in the number of constraints. We consider a duality framework and numerical methods to leverage the relatively small number of constraints. Preliminary numerical results illustrate our approach and its flexibility. |
URL | https://slim.gatech.edu/Publications/Public/Conferences/SINBAD/2013/Fall/macedo2013SINBADdap/macedo2013SINBADdap.pdf |
Citation Key | macedo2013SINBADdap |