Schedule for Spring 2025
Seminars are on Wednesdays
Time: 12:00 – 1:00 pm
Location: Room 1025 SSW, 1255 Amsterdam Avenue
Contacts: Ruchira Ray, Shubhangi Ghosh, & Claire He
1/22/2025 |
Speaker: Dr. Zhiliang Ying (Columbia University) Title: Survival analysis: mathematical foundation, historical and recent developments, and applications Speaker: This talk provides an overview of statistical models and methods associated with the analysis of survival and event history data. It intends to be introductory with coverage on some of the basics such as the Kaplan-Meier curve, the log-rank test, and the semi-parametric regression models such as the Cox model, the accelerated failure time (AFT) model and the linear transformation models. Applications to health sciences, with particular emphasis on epidemiological follow-up studies and clinical trials, social sciences, and to business, such as marketing and finance, are also discussed. |
1/29/2025 |
Speaker: Title: Abstract: |
2/5/2025 |
Speaker: Hane Lee Title: Measuring polarization in the public and Congress Abstract: Political polarization is a pressing issue in the US and worldwide, where both governments and the public are sharply divided by different views into opposing camps whose members distrust and dislike those outside their cluster. This talk discusses two methods for measuring polarization in the public and the US Congress. First, I will introduce a Wasserstein index of political bipolarization in public opinion and apply it to analyze attitudes toward governmental COVID-19 vaccine mandates across 11 countries. Second, I will propose a fused latent and graphical approach for measuring social ties from congressional roll call votes. An application to Senate roll calls between 1990 and 2022 reveals changes in social connections that corroborate accounts of congressional polarization. |
2/12/2025 |
NO SEMINAR |
2/19/2025 |
Speaker: Professor Yuqi Gu (Columbia University) Title: Abstract |
2/26/2025 |
Speaker: Professor Sumit Mukherjee (Columbia University) Title: Abstract: |
3/5/2025 |
Speaker: Title: Abstract:
|
3/12/2025 |
Speaker: Title: Abstract:
|
3/19/2025 |
Speaker: Title: Abstract:
|
3/26/2025 |
Speaker: Title: Abstract:
|
4/2/2025 |
Speaker: Title: Abstract:
|
4/9/2025 |
Speaker: Title: Abstract: Bio: |
4/16/2025 |
Speaker: Title: Abstract:
|
4/23/2025 |
Speaker: Dr. Kobi Abayomi (Seton Hall) Title: Abstract:
|
4/30/2025 |
Speaker: Title: Abstract:
|
Speaker: Title: Abstract:
|
Speaker: Title: Abstract:
|
Speaker: Title: Abstract:
|
Speaker: Title: Abstract:
|
Speaker: Title: Abstract:
|
Speaker: Title: Abstract:
|
Speaker: Title: Abstract:
|