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UID:0-1494@ece.iastate.edu
DTSTART;TZID=America/Chicago:20230926T131000
DTEND;TZID=America/Chicago:20230926T140000
DTSTAMP:20230908T135313Z
URL:https://www.ece.iastate.edu/seminars-and-events/power-seminar-with-vic
tor-m-zavala-graph-structured-optimization-properties-algorithms-and-softw
are/
SUMMARY:Power Seminar with Victor M. Zavala: Graph-Structured Optimization:
Properties\, Algorithms\, and Software - 3043 ECpE Bldg Addition - Sep 26
\, 2023 13:10
DESCRIPTION:This is an online only seminar.\n\n \;\n\nTitle: Graph-Stru
ctured Optimization: Properties\, Algorithms\, and Software\n\nAbstract: W
e study properties for nonlinear optimization problems whose structures ar
e induced by graphs (collections of nodes connected by edges). These probl
ems arise in many applications such as dynamic optimization (graph is a li
ne)\, stochastic optimization (graph is a tree)\, optimization with partia
l differential equations (graph is a mesh)\, and network optimization (gra
ph is the network). Specifically\, we introduce a fundamental property for
graph-structured problems that we call “exponential decay of sensitivit
y.” This property states that\, for a given pair of nodes\, the sensitiv
ity of the solution at one node against a perturbation at the other node d
ecays exponentially with respect to the distance between the nodes. We dis
cuss how this property provides new and interesting insights on how distur
bances propagate through the structure of complex systems and on what fact
ors influence such propagation (e.g.\, controllability and flexibility).
We also show how this sensitivity property enables the design of new deco
mposition and approximation algorithms that can tackle problems of unprece
dented complexity. In addition\, we discuss how to implement graph-structu
red problems in the Julia programming language and how we use these capabi
lities to tackle diverse problems arising in energy systems (e.g.\, power
systems\, natural gas networks\, and HVAC).\n\nBio: Victor M. Zavala is th
e Baldovin-DaPra Professor in the Department of Chemical and Biological En
gineering at the University of Wisconsin-Madison and a senior computationa
l mathematician in the Mathematics and Computer Science Division at Argonn
e National Laboratory. He holds a B.Sc. degree from Universidad Iberoameri
cana and a Ph.D. degree from Carnegie Mellon University\, both in chemical
engineering. He is on the editorial board of the Journal of Process Contr
ol\, Mathematical Programming Computation\, and Computers &\; Chemical
engineering. He is a recipient of NSF and DOE Early Career awards and of t
he Presidential Early Career Award for Scientists and Engineers (PECASE).
His research interests include statistics\, control\, and optimization and
applications to energy and environmental systems.\n\nJoin from a PC\, Mac
\, iPad\, iPhone or Android device:\n\nPlease click this URL to start or j
oin. https://iastate.zoom.us/j/94087524568?pwd=WXc4eWtLaWJJKzNpcHZydlptOUZ
IZz09\n\nOr\, go to https://iastate.zoom.us/join and enter meeting ID: 940
8752 4568 and password: 324328\n\nJoin from dial-in phone line:\n\nDial:
+1 312 626 6799 or +1 646 876 9923\n\nMeeting ID: 940 8752 4568
CATEGORIES:EPRC Seminars,Events,Seminars
LOCATION:3043 ECpE Bldg Addition\, Coover Hall\, Ames\, United States
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States;X-APPLE-RADIUS=100;X-TITLE=3043 ECpE Bldg Addition:geo:0,0
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DTSTART:20230312T030000
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