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A Lifted l1 Framework for Sparse Recovery
Mathematics of Data & Decisions| Speaker: | Yifei Lou, UT Dallas |
| Location: | Zoom |
| Start time: | Tue, May 3 2022, 1:00PM |
Motivated by re-weighted l1 approaches for sparse recovery, we propose a lifted l1 (LL1) regularization that can be generalized to several popular regularizations in the literature.
During the course of reformulating the existing methods into our framework, we discover
two types of lifting functions that can guarantee that the proposed approach is equivalent to
the l0 minimization. Computationally, we design an efficient algorithm via the alternating
direction method of multiplier (ADMM) and establish the convergence for an unconstrained
formulation. Experimental results are presented to demonstrate how this generalization
improves sparse recovery over the state-of-the-art. This is a joint work with Yaghoub Rahimi
and Sung Ha Kang from the Georgia Institute of Technology
Stefan Schonsheck is inviting you to a scheduled Zoom meeting. Topic: Mathematics of Data and Decisions at Davis Time: Apr 19, 2022 01:00 PM Pacific Time (US and Canada) Every week on Tue, 14 occurrence(s) Apr 19, 2022 01:00 PM Apr 26, 2022 01:00 PM May 3, 2022 01:00 PM May 10, 2022 01:00 PM May 17, 2022 01:00 PM May 24, 2022 01:00 PM May 31, 2022 01:00 PM Jun 7, 2022 01:00 PM Jun 14, 2022 01:00 PM Jun 21, 2022 01:00 PM Jun 28, 2022 01:00 PM Jul 5, 2022 01:00 PM Jul 12, 2022 01:00 PM Jul 19, 2022 01:00 PM Please download and import the following iCalendar (.ics) files to your calendar system. Weekly: https://ucdavis.zoom.us/meeting/tJYsfuCsrj8tGdRd6Az7cEd7gpo6PfvvDg5X/ics?icsToken=98tyKuCqrzIjHtSRtxqHRowQBYr4XejziClajadvmEnEGXdQRwehMfJNZIJ5Bs70 Join Zoom Meeting https://ucdavis.zoom.us/j/92199404730?pwd=aUR4VkpUa3crMDIxNXlJRFY5ZE00UT09 Meeting ID: 921 9940 4730 Passcode: 039510 One tap mobile +13017158592,,92199404730#,,,,*039510# US (Washington DC) +13126266799,,92199404730#,,,,*039510# US (Chicago) Dial by your location +1 301 715 8592 US (Washington DC) +1 312 626 6799 US (Chicago) +1 646 876 9923 US (New York) +1 253 215 8782 US (Tacoma) +1 346 248 7799 US (Houston) +1 669 900 6833 US (San Jose) Meeting ID: 921 9940 4730 Passcode: 039510 Find your local number: https://ucdavis.zoom.us/u/acmetOYaDx