Events for 10/19/2017 from all calendars
Postdoc Lunch Time Talks
Time: 12:00PM - 12:20PM
Location: BLOC 220
Speaker: Shilin Yu, Texas A&M University
Description: Title: Representations of Lie groups
Abstract: A representation of a group G is a vector space with a G acting by linear automorphisms. Classification of representations of Lie groups has important applications in geometry, harmonic analysis and number theory. I will review the basics and illustrate it with an example. Then I will propose a new geometric way to understand the representations.
Postdoc Lunch Time Talks - Computing Discriminants of Likelihood Equations
Time: 12:35PM - 12:55PM
Location: BLOC 220
Speaker: Xiaoxian Tang, Texas A&M University
Description: Computing Discriminants of Likelihood Equations
Abstract: Maximum likelihood estimation (MLE) is a fundamental problem in statistics. All the complex critical points of a given statistical model can be found by solving a very well-structured system of likelihood equations. Computing the discriminant of the system is the key step to classify the real critical points. Based on the known elimination and probabilistic interpolation algorithms, we explore an more efficient method to compute discriminant s by the structures of Newton polytopes.