Topology, Geometry and Data Seminar - Thomas Weighill

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Topology, Geometry and Data Seminar
November 10, 2020
4:00PM - 5:00PM
Location
Zoom

Date Range
Add to Calendar 2020-11-10 16:00:00 2020-11-10 17:00:00 Topology, Geometry and Data Seminar - Thomas Weighill Title: The (Homological) Persistence of Gerrymandering Speaker: Thomas Weighill - Tufts University  Abstract: Redistricting is the process of dividing a state into districts for the purpose of electing representatives. Ensuring fairness in this process has received a lot of public attention following high-profile court cases and reform efforts. To know what a fair map looks like, we need to understand the universe of valid redistricting plans for each state. In this talk, I will show how by sampling from this space and applying a persistent homology pipeline, we are able to extract key features of a "typical" plan. We can then use these features to explore how representation changes with district size, election year and partisan bias. This is joint work with Moon Duchin and Tom Needham.  Seminar Link Zoom Department of Mathematics math@osu.edu America/New_York public
Description

Title: The (Homological) Persistence of Gerrymandering

Speaker: Thomas Weighill - Tufts University 

Abstract: Redistricting is the process of dividing a state into districts for the purpose of electing representatives. Ensuring fairness in this process has received a lot of public attention following high-profile court cases and reform efforts. To know what a fair map looks like, we need to understand the universe of valid redistricting plans for each state. In this talk, I will show how by sampling from this space and applying a persistent homology pipeline, we are able to extract key features of a "typical" plan. We can then use these features to explore how representation changes with district size, election year and partisan bias. This is joint work with Moon Duchin and Tom Needham. 

Seminar Link

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