Penn Geometry-Topology, February 27 2018.
Slides on negative dependence, UW-MSR conference, August 24, 2015
Slides for Analytic Combinatorics in Several Variables, Analysis of Algorithms conference, May 30, 2013
Slides for Locations of Zeros, Joint Math Meetings, January 11, 2013
Slides for ICERM tutorial on generating function computation, November 13-15, 2012
Slides from Hyperbolicity and Stability in Probability and Combinatorics, Current Developments in Mathematics, November 18, 2011