<div dir="ltr"><div class="gmail-nH gmail-aHU" style="color:rgb(32,33,36);font-family:"Google Sans",Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:medium"><div class="gmail-nH gmail-hx" style="background-color:transparent;color:rgb(34,34,34);min-width:502px;padding:0px"><div class="gmail-nH" role="list"><div class="gmail-h7 gmail-ie gmail-nH gmail-oy8Mbf" role="listitem" aria-expanded="true" tabindex="-1" style="clear:both;padding-bottom:0px;max-width:100000px;outline:none"><div class="gmail-Bk" style="margin-bottom:0px;border-width:0px;border-top-style:solid;border-right-style:initial;border-bottom-style:initial;border-left-style:initial;border-top-color:rgb(239,239,239);border-right-color:initial;border-left-color:initial;border-bottom-color:initial;border-radius:0px;float:left;width:915px"><div class="gmail-G3 gmail-G2" style="padding-top:0px;background-color:transparent;border-right:0px;border-bottom:0px rgba(100,121,143,0.12);border-left:0px;border-top:none;border-radius:0px;margin-bottom:0px;margin-left:0px;margin-right:0px"><div id="gmail-:sv0"><div class="gmail-adn gmail-ads" style="border-left:none;padding:0px;display:flex"><div class="gmail-gs" style="margin:0px;padding:0px 0px 20px;width:843px"><div class="gmail-"><div id="gmail-:tdu" class="gmail-ii gmail-gt" style="direction:ltr;margin:8px 0px 0px;padding:0px;font-size:0.875rem"><div id="gmail-:sks" class="gmail-a3s gmail-aiL" style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:small;line-height:1.5;font-family:Arial,Helvetica,sans-serif;overflow:hidden"><div dir="ltr"><div><i>Part of the <a href="https://datascience.uchicago.edu/news/autumn-2022-distinguished-speaker-series/" target="_blank">Computer Science/Statistics/Data Science Institute Distinguished Speaker Series</a></i></div><br><font face="arial, sans-serif" color="#000000"><b style="letter-spacing:0.2px;white-space:pre-wrap">Wednesday, December 7th </b><br style="letter-spacing:0.2px;white-space:pre-wrap"><b style="letter-spacing:0.2px;white-space:pre-wrap">12:00pm - 1:30pm (12:00 lunch, 12:30 talk)</b><br style="letter-spacing:0.2px;white-space:pre-wrap"><b style="letter-spacing:0.2px;white-space:pre-wrap">In Person: John Crerar Library 390</b><br style="letter-spacing:0.2px;white-space:pre-wrap"></font><b style="color:rgb(60,64,67);font-family:Roboto,Arial,sans-serif;font-size:14px;letter-spacing:0.2px;white-space:pre-wrap">Zoom: </b><a href="https://www.google.com/url?q=https://uchicagogroup.zoom.us/j/95090252194?pwd%3DYWw3SHVEcnVlNjVWMWZQQm5vaXZhQT09&sa=D&source=calendar&ust=1670715655795680&usg=AOvVaw0jEYMOVB_xf0Q1r1Oy84-F" target="_blank" style="font-family:Roboto,Arial,sans-serif;font-size:14px;letter-spacing:0.2px;white-space:pre-wrap">https://uchicagogroup.zoom.us/j/95090252194?pwd=YWw3SHVEcnVlNjVWMWZQQm5vaXZhQT09</a><b style="color:rgb(60,64,67);font-family:Roboto,Arial,sans-serif;font-size:14px;letter-spacing:0.2px;white-space:pre-wrap"><br></b><u style="color:rgb(60,64,67);font-family:Roboto,Arial,sans-serif;font-size:14px;letter-spacing:0.2px;white-space:pre-wrap"></u><b style="color:rgb(60,64,67);font-family:Roboto,Arial,sans-serif;font-size:14px;letter-spacing:0.2px;white-space:pre-wrap">Meeting ID</b><span style="color:rgb(60,64,67);font-family:Roboto,Arial,sans-serif;font-size:14px;letter-spacing:0.2px;white-space:pre-wrap">: 950 9025 2194</span><br style="color:rgb(60,64,67);font-family:Roboto,Arial,sans-serif;font-size:14px;letter-spacing:0.2px;white-space:pre-wrap"><b style="color:rgb(60,64,67);font-family:Roboto,Arial,sans-serif;font-size:14px;letter-spacing:0.2px;white-space:pre-wrap">Passcode</b><span style="color:rgb(60,64,67);font-family:Roboto,Arial,sans-serif;font-size:14px;letter-spacing:0.2px;white-space:pre-wrap">: 362583</span><font face="arial, sans-serif" color="#000000"><br></font><div><font face="arial, sans-serif" color="#000000"><br></font></div><div><b><font color="#000000" face="arial, sans-serif"><span style="letter-spacing:0.2px;white-space:pre-wrap">Suvrit Sra</span></font></b></div><div><b>Associate Professor of EECS</b></div><div><b>Massachusetts Institute of Technology</b></div><div><br></div><div><b>Geometric Optimization: Old and New<br></b></div><div><br></div><div><b>Abstract</b>: This talk is about non-Euclidean optimization, primarily (but not only) about problems whose parameters lie on a Riemannian manifold. I will lay particular emphasis on geodesically convex optimization, a vast class of non-convex optimization that remains tractable. I will recall some motivating background and present canonical examples. Starting with our 2016 paper on g-convex optimization, the iteration complexity theory for g-convex optimization has grown substantially: I will summarize some of the recent progress including Riemannian acceleration, and saddle-point problem, Langevin MCMC etc., while noting some key open problems.</div><br><div><div><b>Bio</b>: <a href="https://optml.mit.edu/" target="_blank">Suvrit Sra</a> is an Associate Professor of EECS at MIT, and a core member of the Laboratory for Information and Decision Systems (LIDS), the Institute for Data, Systems, and Society (IDSS), as well as a member of MIT-ML and Statistics groups. He obtained his PhD in Computer Science from the University of Texas at Austin. Before moving to MIT, he was a Senior Research Scientist at the Max Planck Institute for Intelligent Systems, Tübingen, Germany. His research bridges mathematical areas such as differential geometry, matrix analysis, convex analysis, probability theory, and optimization with machine learning. He founded the OPT (Optimization for Machine Learning) series of workshops, held from OPT2008–2017 at the NeurIPS (erstwhile NIPS) conference. He has co-edited a book with the same name (MIT Press, 2011). He is also a co-founder and chief scientist of macro-eyes, an OPT+ML driven startup with a focus on intelligent supply chains.</div><font color="#888888"><font color="#888888"><br></font></font></div><font color="#888888"><br clear="all"><div><br></div>--<br><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><i style="font-size:12.8px">Rob Mitchum</i></div><div dir="ltr"><i>Associate Director of Communications for Data Science and Computing<br></i><div style="font-size:12.8px"><i>Department of Computer Science</i></div><div style="font-size:12.8px"><i>Data Science Institute</i></div><div style="font-size:12.8px"><i>University of Chicago</i><br></div><div style="font-size:12.8px"><i><a href="mailto:rmitchum@ci.uchicago.edu" target="_blank">rmitchum@uchicago.edu</a></i><br></div><div style="font-size:12.8px"><i>773-484-9890</i><br></div></div></div></div></div></div></div></div></font></div><div class="gmail-yj6qo"></div><div class="gmail-adL"></div></div></div><div class="gmail-hi" style="border-bottom-left-radius:1px;border-bottom-right-radius:1px;padding:0px;width:auto;background:rgb(242,242,242);margin:0px"></div></div></div><div class="gmail-ajx" style="clear:both"></div></div><div class="gmail-gA gmail-gt gmail-acV" style="font-size:0.875rem;padding:0px;width:auto;border-bottom-left-radius:0px;border-bottom-right-radius:0px;border-top:none;margin:0px;background:transparent"><div class="gmail-gB gmail-xu" style="border-top:0px;padding:0px"><div class="gmail-ip gmail-iq" style="clear:both;margin:0px;padding:16px 0px;border-top:none"><div id="gmail-:tdv"><table class="gmail-cf gmail-wS" role="presentation" style="border-collapse:collapse"><tbody><tr><td class="gmail-amq" style="padding:0px 16px;vertical-align:top;width:44px"><img id="gmail-:nx_2402" name=":nx" src="https://lh3.googleusercontent.com/a/AEdFTp7nFhUB9tP_I60f56fKP3JPFI1U4hI4phjq0GBbjA=s80-p" class="gmail-ajn gmail-bofPge" style="display: block; width: 40px; height: 40px; border-radius: 50%;"></td><td class="gmail-amr" style="padding:0px;width:843px"><div class="gmail-nr gmail-wR" style="box-sizing:border-box;border-radius:1px;padding:0px;border:none;margin:0px"><div class="gmail-amn" style="color:inherit;height:auto;padding:0px;display:flex;line-height:20px"><span id="gmail-:sqt" role="link" tabindex="0" class="gmail-ams gmail-bkH" style="border:1px solid rgb(116,119,117);display:inline-flex;font-size:0.875rem;background:none;border-radius:18px;box-sizing:border-box;color:rgb(68,71,70);height:36px;outline:none;padding:0px 16px 0px 12px;min-width:104px;margin-right:8px">Reply</span><span id="gmail-:tdi" role="link" tabindex="0" class="gmail-ams gmail-bkI" style="border:1px solid rgb(116,119,117);display:inline-flex;font-size:0.875rem;background:none;border-radius:18px;box-sizing:border-box;color:rgb(68,71,70);height:36px;outline:none;padding:0px 16px 0px 12px;min-width:104px;margin-right:8px">Reply all</span><span id="gmail-:suz" role="link" tabindex="0" class="gmail-ams gmail-bkG" style="border:1px solid rgb(116,119,117);display:inline-flex;font-size:0.875rem;background:none;border-radius:18px;box-sizing:border-box;color:rgb(68,71,70);height:36px;outline:none;padding:0px 16px 0px 12px;min-width:104px;margin-right:8px">Forward</span></div></div></td></tr></tbody></table></div></div></div></div></div></div></div></div></div><div class="gmail-nH"></div><div class="gmail-nH"></div></div></div><div class="gmail-nH" style="color:rgb(32,33,36);font-family:"Google Sans",Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:medium"><br class="gmail-Apple-interchange-newline"></div></div>