318 Hanes Hall, CB #3260 Chapel Hill, NC 27599-3260
Loading Events

Hotelling Lecture: Yurii Nesterov; CORE, Catholic University of Louvain

April 10, 2019 @ 3:30 pm - 4:30 pm

Soft clustering by convex electoral model

Wednesday, April 10th, 2019

In this talk, we analyze an electoral model based on random preferences of participants. Each voter can choose a party with certain probability depending on the divergence between his personal preferences and current position of the party. Our model represents a rare example of a community detection model (or, soft clustering) with unique equilibrium state. This is achieved by allowing the flexible positions for the parties (centers of clusters). We propose an efficient algorithm for finding the equilibrium state with linear rate of convergence. It can be interpreted as an alternating minimization scheme. Again, this is a rare example when such a scheme has provable global linear rate of convergence.

Share This Event

  • This event has passed.


April 10, 2019
3:30 pm - 4:30 pm
Event Category:


120 Hanes Hall
Hanes Hall
Chapel Hill, NC 27599 United States