BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//ALOP - ECPv6.17.5//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-ORIGINAL-URL:https://alop.uni-trier.de
X-WR-CALDESC:Events for ALOP
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Berlin
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20220327T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20221030T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20230326T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20231029T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20240331T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20241027T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231116T160000
DTEND;TZID=Europe/Berlin:20231116T170000
DTSTAMP:20231113T141958Z
CREATED:20231024T091139Z
LAST-MODIFIED:20231113T141958Z
UID:7310-1700150400-1700154000@alop.uni-trier.de
SUMMARY:ALOP Colloquium with Daniel Walter
DESCRIPTION:On Thursday\, November 16\, 2023 at 16:00 c.t. Prof. Dr. Daniel Walter\, HU Berlin\, will speak at the ALOP Colloquium about his recent work. \nIf you would like to participate via Zoom\, please click here. \n  \nEfficient minimization in spaces of measures: Numerical methods and applications \nAbstract: \nMinimization problems in spaces of (vector) measures naturally emerge in a variety of challenging settings including e.g. inverse problems in acoustics and seismology\, micoscropy\, optimal sensor placement as well as the training of shallow neural networks. \nIn this talk\, we discuss several of these applications\, both from a theoretical and numerical perspective\, highlighting the difficulties posed by the (typical) nonsmoothness of the arising optimization problems as well as the lack of “nice” topological properties in the space of (vector) measures. Different practical solution ansatzes are discussed with a particular focus on generalized conditional gradient methods. \nFinally\, we further underline the practical relevance of “sparse” minimization problems by showing that a huge class of nonsmooth problems can be equivalently rewritten as an optimization problem over  measures on a compact metric space using arguments from convex representation theory. From a practical perspective\, this unification allows the derivation and analysis of an efficient general purpose solution algorithm by “lifting” arguments from the vector measure setting. \n  \nPlease join us at 16:00 c.t. in HS 9.
URL:https://alop.uni-trier.de/event/alop-colloquium-with-daniel-walter/
LOCATION:Trier University\, E Building\, Universitätsring 15\, Trier\, Germany
ORGANIZER;CN="RTG ALOP at Trier University":MAILTO:ALOP@uni-trier.de
END:VEVENT
END:VCALENDAR