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DTSTAMP:20210630T174541
UID:39a8cc10-d9ba-11eb-a1b6-000e0c3db68b
SUMMARY:Vortrag von Prof. Julien M. Hendrickx
DESCRIPTION:Prof. Julien M. Hendrickx\nInstitute of Information and Communication Technologies, Electronics and Applied Mathematics\nUniversité Catholique de Louvain\nLouvain-la-Neuve, Belgium  \nTuesday 2020-01-07 16:00\nIST-Seminar-Room V9.2.255 - Pfaffenwaldring 9 - Campus Stuttgart-Vaihingen  \nAbstract\nWe show that the exact worst-case performances of a wide class of first-order convex\noptimization algorithms can be obtained as solutions to semi-definite programs, which provide both\nthe performance bounds and functions on which these are reached.  Our formulation is\nbased on a necessary and sufficient condition for smooth (strongly) convex interpolation, allowing\nfor a finite representation for smooth (strongly) convex functions in this context. These\nresults allow improving the performance bounds of many classical algorithms, and better\nunderstanding their dependence on the algorithm's parameters, leading to new optimized parameters,\nand thus stronger performances. Our approach can be applied via the PESTO Toolbox, which let\nthe user describe algorithms in a natural way.\nBiographical Information\nJulien M. Hendrickx is a professor of mathematical engineering at UCLouvain, in the Ecole\nPolytechnique de Louvain since 2010. He obtained an engineering degree in applied mathematics\n(2004) and a PhD in mathematical engineering (2008) from the same university. He has been a\nvisiting researcher at the University of Illinois at Urbana Champaign in 2003-2004, at the National\nICT Australia in 2005 and 2006, and at the Massachusetts Institute of Technology in 2006 and 2008.\nHe was a postdoctoral fellow at the Laboratory for Information and Decision Systems of the\nMassachusetts Institute of Technology 2009 and 2010, holding postdoctoral fellowships of the\nF.R.S.-FNRS (Fund for Scientific Research) and of Belgian American Education Foundation, and a\nresident scholar at CISE, Boston University, in 2018-2019. Doctor Hendrickx is the recipient of the\n2008 EECI award for the best PhD thesis in Europe in the field of Embedded and Networked Control,\nand of the Alcatel-Lucent-Bell 2009 award for a PhD thesis on original new concepts or application\nin the domain of information or communication technologies.
DTSTART;TZID=Europe/Berlin;VALUE=DATE:20200107
URL;VALUE=URI:https://www.ist.uni-stuttgart.de/de/veranstaltungen/39a8cc10-d9ba-11eb-a1b6-000e0c3db68b/
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