Student Seminar – Spring 2025

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: