News & EventsDepartment Events
Events
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Jan16
EVENT DETAILSmore info
lessThis talk has been postponed to Thursday, January 23rd.
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TIME Friday, January 16, 2026 at 2:00 PM - 3:00 PM
LOCATION M416, Technological Institute map it
CONTACT Anne Umbanhowar anne.umbanhowar@northwestern.edu EMAIL
CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)
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Jan23
EVENT DETAILS
lessTitle: Federated Low-rank Learning
Speaker: Diego Klabjan, Northwestern University
Abstract:
Federated Learning (FL) faces significant challenges related to communication efficiency and performance reduction when scaling to many clients. To address these issues, we explore the potential of using low-rank updates and provide the first theoretical study of rank properties in FL. Our theoretical analysis shows that a client’s loss exhibits a higher-rank structure (i.e., gradients span higher-rank subspaces of the Hessian) compared to the server’s loss, and that low-rank approximations of the clients’ gradients have greater similarity. Consequently, we propose FedLoRU, a general low-rank update framework for FL. Our framework enforces low-rank client-side updates and accumulates these updates to form a higher rank model. Experimental results demonstrate that FedLoRU performs comparably to full-rank algorithms and exhibits robustness.
Joint work with Haemin Park, PhD candidate in IEMS
Zoom: TBA
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SUBSCRIBE esam-seminar FirstName LastName
TIME Friday, January 23, 2026 at 1:00 PM - 2:00 PM
LOCATION M416, Technological Institute map it
CONTACT Anne Umbanhowar anne.umbanhowar@northwestern.edu EMAIL
CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)
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Jan29
EVENT DETAILS
lessTitle: TBA
Speaker: Ching-Yao Lai, Stanford University
Abstract: TBA
Zoom: TBA
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SUBSCRIBE esam-seminar FirstName LastName
TIME Thursday, January 29, 2026 at 11:15 AM - 12:15 PM
LOCATION M416, Technological Institute map it
CONTACT Anne Umbanhowar anne.umbanhowar@northwestern.edu EMAIL
CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)
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Feb5
EVENT DETAILS
lessTitle: TBA
Speaker: Rich Townsend, University of Wisconsin
Abstract: TBA
Zoom: TBA
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To subscribe to the Applied Mathematics Colloquia List send a message to LISTSERV@LISTSERV.IT.NORTHWESTERN.EDU with the command:
SUBSCRIBE esam-seminar FirstName LastName
TIME Thursday, February 5, 2026 at 11:15 AM - 12:15 PM
LOCATION M416, Technological Institute map it
CONTACT Anne Umbanhowar anne.umbanhowar@northwestern.edu EMAIL
CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)
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Feb12
EVENT DETAILS
lessTitle: TBA
Speaker: Roberto Zenit, Brown University
Abstract: TBA
Zoom: TBA
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SUBSCRIBE esam-seminar FirstName LastName
TIME Thursday, February 12, 2026 at 11:15 AM - 12:15 PM
LOCATION M416, Technological Institute map it
CONTACT Anne Umbanhowar anne.umbanhowar@northwestern.edu EMAIL
CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)
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Feb19
EVENT DETAILS
lessTitle: TBA
Speaker: Chaoming Song, University of Miami (sabbatical at Northwestern University)
Abstract: TBA
Zoom: TBA
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To subscribe to the Applied Mathematics Colloquia List send a message to LISTSERV@LISTSERV.IT.NORTHWESTERN.EDU with the command:
SUBSCRIBE esam-seminar FirstName LastName
TIME Thursday, February 19, 2026 at 11:15 AM - 12:15 PM
LOCATION M416, Technological Institute map it
CONTACT Anne Umbanhowar anne.umbanhowar@northwestern.edu EMAIL
CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)
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Feb26
EVENT DETAILS
lessTitle: TBA
Speaker: Stefano Allisina, The University of Chicago
Abstract: TBA
Zoom: TBA
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SUBSCRIBE esam-seminar FirstName LastName
TIME Thursday, February 26, 2026 at 11:15 AM - 12:15 PM
LOCATION M416, Technological Institute map it
CONTACT Anne Umbanhowar anne.umbanhowar@northwestern.edu EMAIL
CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)
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Mar12
EVENT DETAILS
lessTitle: TBA
Speaker: Xiao Yu Wang, CRI Foundation
Abstract: TBA
Zoom: TBA
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To subscribe to the Applied Mathematics Colloquia List send a message to LISTSERV@LISTSERV.IT.NORTHWESTERN.EDU with the command:
SUBSCRIBE esam-seminar FirstName LastName
TIME Thursday, March 12, 2026 at 11:15 AM - 12:15 PM
LOCATION M416, Technological Institute map it
CONTACT Anne Umbanhowar anne.umbanhowar@northwestern.edu EMAIL
CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)
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Apr2
EVENT DETAILS
lessTitle: TBA
Speaker: Oleg Kirillov
Abstract: TBA
Zoom: TBA
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To subscribe to the Applied Mathematics Colloquia List send a message to LISTSERV@LISTSERV.IT.NORTHWESTERN.EDU with the command:
SUBSCRIBE esam-seminar FirstName LastName
TIME Thursday, April 2, 2026 at 11:15 AM - 12:15 PM
LOCATION M416, Technological Institute map it
CONTACT Anne Umbanhowar anne.umbanhowar@northwestern.edu EMAIL
CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)
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May13
EVENT DETAILS
lessTitle: Title TBA - Reiss Lecture
Speaker: Melanie Mitchell, Santa Fe Institute
Abstract: TBA
Zoom: TBA
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SUBSCRIBE esam-seminar FirstName LastName
TIME Wednesday, May 13, 2026 at 11:15 AM - 12:15 PM
CONTACT Anne Umbanhowar anne.umbanhowar@northwestern.edu EMAIL
CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)