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DTSTAMP:20241108T135217
DTSTART;TZID=America/Detroit:20241118T150000
DTEND;TZID=America/Detroit:20241118T160000
SUMMARY:Workshop / Seminar:HEP-Astro Seminar | Towards precision cosmology with CMB lensing using data from SPT-3G
DESCRIPTION:Gravitational lensing of the cosmic microwave background (CMB) is an effective probe of the projected matter fluctuation integrated along the line of sight through the observable universe. Recent measurements of the CMB lensing power spectrum are providing precise and competitive cosmological parameter constraints of the standard cosmological model LCDM\, informing the “S8 tension” and further constraining the sum of neutrino masses. SPT-3G is a high-resolution\, high-sensitivity mm-wave camera installed on the 10-m South Pole Telescope\, ideal for measurements of CMB lensing. I will discuss the on-going CMB lensing measurements using SPT-3G data and showcase forecasts of cosmological parameter constraints with CMB lensing alone and combined with SPT-3G primary CMB spectra measurements.  I will discuss the impact of extragalactic foregrounds on these measurements and on delensing for BICEP/Keck. I will conclude with field-level modeling of these foregrounds in the context of CMB lensing using generative neural networks.
UID:128455-21860848@events.umich.edu
URL:https://events.umich.edu/event/128455
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Physics,Science
LOCATION:West Hall - 340
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20241113T111251
DTSTART;TZID=America/Detroit:20241118T150000
DTEND;TZID=America/Detroit:20241118T160000
SUMMARY:Workshop / Seminar:Personalized and Distributed Data Analytics in Heterogeneous Environments
DESCRIPTION:About the speaker: Naichen Shi is a Ph.D. candidate in the Industrial & Operations Engineering Department at the University of Michigan. His research focuses on personalized\, integrative\, and science-informed data analytics. Naichen is interested in developing statistical and optimization tools to address real-world challenges across multiple science and engineering domains\, including Digital Twins\, advanced manufacturing\, and transcriptomics. He has published several papers in both methodological and applied journals and conferences\, including the Journal of Machine Learning Research (JMLR)\, Technometrics\, NeurIPS\, and the Journal of Manufacturing Systems. Naichen has received four best paper recognitions from the Institute for Operations Research and the Management Sciences (INFORMS)\, including winning the 2024 INFORMS Data Mining Best General Paper Competition.\n\nAbstract: Data is increasingly being collected from distributed and often heterogeneous sources\, such as smartphones\, connected vehicles\, and healthcare devices. While much effort has focused on predictive learning under heterogeneity\, I argue in this talk that predictive modeling\, without untangling the nature of heterogeneity across users\, may lead to significant failures. With this in mind\, I present a descriptive framework called Personalized Principal Component Analysis (PCA) that answers the simple question: What is shared\, and what is unique? Specifically\, we introduce an efficient algorithm to extract identifiable global and local PCs based on distributed manifold gradient descent. The algorithm is proved to converge linearly and output results with statistical errors that almost match the lower bound. Building on this\, I then highlight our research on predictive modeling under heterogeneity and discuss its implications for collaborative machine learning and interoperable Digital Twins.
UID:129083-21862145@events.umich.edu
URL:https://events.umich.edu/event/129083
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Graduate,Talk,seminar,Research,Michigan Engineering,Ioephdtalks,Ioephdstudents,Industrial And Operations Engineering,Graduate Students,Faculty,Engineering,Data Science
LOCATION:Industrial and Operations Engineering Building - 2717
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20240802T181527
DTSTART;TZID=America/Detroit:20241118T150000
DTEND;TZID=America/Detroit:20241118T160000
SUMMARY:Other:Virtual Information Session
DESCRIPTION:Join us for a virtual\, hour-long info session on undergraduate programs at the University of Michigan Stamps School of Art &amp\; Design\, including a presentation and Q&amp\;A with current students and the admissions team.Info session times are Eastern US.\nVisit our Admissions Events page to learn more about additional upcoming events.
UID:123784-21851886@events.umich.edu
URL:https://events.umich.edu/event/123784
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Art
LOCATION:Off Campus Location
CONTACT:
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