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SUMMARY:On computational inversion with metrics from optimal transport - K
 ui Ren (Columbia University)
DTSTART:20230620T133000Z
DTEND:20230620T143000Z
UID:TALK200416@talks.cam.ac.uk
DESCRIPTION:Metrics originated from optimal transport theory have been use
 d recently in solving computational inverse problems related to PDEs. Some
  obvious advantages (such as its stability against high-frequency noise) a
 nd disadvantages (such as the loss of resolution when iterations are prema
 turely stopped) over the classical L2-based least-squares method have been
  reported\, especially in applications in full waveform inversion. I will 
 discuss some recent understanding of some aspects of computational inversi
 on with optimal transport\, especially on its advantage on the optimizatio
 n landscape.
LOCATION:Seminar Room 1\, Newton Institute
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