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DTSTART:20230326T010000
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DTSTART;TZID=Europe/Helsinki:20230327T140000
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SUMMARY:Radu-Alexandru DRAGOMIR (EPFL) - "Optimization method for quartic problems"
DESCRIPTION:Statistical Seminar: Every Monday at 2:00 pm.\nTime: 2:00 pm – 3:15 pm\nDate: 27th of March 2023\nPlace: Room 3001 + ZOOM \n  \nRadu-Alexandru DRAGOMIR (EPFL) – “Optimization method for quartic problems” \n  \nAbstract: \nMany tasks in signal processing and learning require minimizing quartic polynomials\, such as matrix factorization\, phase retrieval and sensor network localization.  \nIn this talk\, I will give an overview of different gradient-based methods for this problem\, including mirror descent and a new homogenized gradient scheme. Additionally\, I will show that the performance can be improved by using a preconditioner based on the Lewis leverage scores. \n  \nParticiper à la réunion Zoom \nhttps://zoom.us/j/93394039252?pwd=eXlKeWdSdm54ZzBJTjZwY3FnenhQQT09 \n  \nID de réunion : 933 9403 9252 \nCode secret : 692272 \n  \n  \n  \nOrganizers:\nCristina BUTUCEA (CREST)\, Alexandre TSYBAKOV (CREST)\, Karim LOUNICI (CMAP) \, Jaouad MOURTADA (CREST)\nSponsors:\nCREST-CMAP \n
URL:https://crest.science/event/radu-alexandru-dragomir-epfl-optimization-method-for-quartic-problems/
CATEGORIES:Statistics
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