MSCS Seminar Calendar

Tuesday June 18, 2024
pdf * Dynamics Seminar
Distal actions of automorphisms on Lie groups G and Sub_G with applications to lattices
Riddhi Shah (Jawaharlal Nehru University, New Delhi)
2:00 PM in 427 SEO
On a locally compact group G, the space Sub_G of closed subgroups of G endowed with the Chabauty topology is compact. There is a natural action of the automorphism group Aut(G) on Sub_G. Distal maps were introduced by David Hilbert on compact spaces to study non-ergodic maps. After a gentle introduction to distal actions with some examples, we will discuss the distal actions of automorphisms on a connected Lie group G and Sub_G and characterise those acting distally on certain invariant subspaces of Sub_G for a large class of Lie groups. We will present a characterisation of the distal actions of automorphisms of a lattice L in G on Sub_L. We will also present a useful result on the structure of lattices in a connected Lie group.
Wednesday September 4, 2024
pdf * Statistics and Data Science Seminar
Bayesian Method of Borrowing Study-Level Historical Longitudinal Control Data for Mixed-effects Models with Repeated Measures
Dr. Hong Li (Takeda Pharmaceutical Company)
4:00 PM in 636 SEO
Bringing historical control information into a new trial appropriately holds the promise of more efficient trial design with more accurate estimates, increased power, and fewer patients allocated to inefficacious control group, provided the historical control data are sufficiently similar to the concurrent control. Interest has been growing over the past few decades in leveraging historical clinical trial on the control arm. However, most of the current historical borrowing methods focus on incorporating patient-level historical control information at only one time point. In this work, we propose a Bayesian hierarchical Mixed effect Models for Repeated Measures (BMMRM) to incorporate aggregated study-level longitudinal historical control estimates into the concurrent trial that collected repeated longitudinal data. The simulation study demonstrates that, as compared to one time point data analysis approach, leveraging longitudinal historical control data produces greater power enhancement and mitigates the power loss when the missing data under missing at random (MAR) mechanism is present. Our work also helps fill the gap of lack of methods borrowing historical longitudinal control data from the published summarized estimates when patient-level control data are not available.
Friday September 6, 2024
pdf * Departmental Colloquium
TBA
Emily Barnard (De Paul)
3:00 PM in 636 SEO
TBA
Friday September 20, 2024
pdf * Departmental Colloquium
TBA
Maria Chudnovsky (Princeton)
3:00 PM in 636 SEO
TBA
There will be a Colloquium dinner at 7:30 p.m. in river north (place to be announced). Please email schapos@uic.edu if you want to join.
Friday September 27, 2024
pdf * Departmental Colloquium
TBA - Big ideas in Dynamics
TBA - Big ideas in Dynamics (TBA - Big ideas in Dynamics)
3:00 PM in 636 SEO
TBA - Big ideas in Dynamics
Wednesday October 2, 2024
pdf * Statistics and Data Science Seminar
TBA
Bradley Jones (Adsurgo LLC)
4:00 PM in 636 SEO
Host: Dibyen Majumdar
Friday October 25, 2024
pdf * Departmental Colloquium
TBA
Teena Gerhardt (Michigan State)
3:00 PM in 636 SEO
TBA
Please reach out to schapos@uic.edu if you'd like to join Teena for a meal
Friday November 8, 2024
pdf * Departmental Colloquium
TBA
Juanita Pinzon Caicedo (Notre Dame)
3:00 PM in 636 SEO
TBA
Friday November 15, 2024
pdf * Departmental Colloquium
TBA
Noah Giansiracusa (Bentley University)
3:00 PM in 636 SEO
TBA
Please let Laura Schaposnik at schapos@uic.edu know if you'd like to join Noah for dinner, or if you'd like to meet him during the day. He's doing a lot of interesting interdisciplinary maths: https://www.noahgian.com/
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