DEPARTMENT OF STATISTICS
Statistics Colloquium
University of Connecticut
Storrs, Connecticut
The Department of Statistics Cordially invites you to a Colloquium
Guojun Gan
Assistant Professor
Department of Mathematics
University of Connecticut
Clustering by Propagating Probabilities Between Data Points
ABSTRACT
In this talk, I will talk about a graph-based clustering algorithm called “probability propagation”, which is able to identify clusters having spherical shapes as well as clusters having non-spherical shapes. Given a set of objects, the proposed algorithm uses local densities calculated from a kernel function and a bandwidth to initialize the probability of one object choosing another object as its attractor and then propagates the probabilities until the set of attractors become stable. Experiments on both synthetic data and real data show that the proposed method performs as expected.
DATE: Wednesday, January 28, 2015
TIME: 4:00 p.m.
PLACE: Philip E. Austin Building – Room 105
Coffee will be served at 3:30 in room 326
For more information, contact: Tracy Burke at tracy.burke@uconn.edu