Degree-Driven Geometric Algorithm Design, Innovations in Theoretical Computer Science, Cambridge, Ma, January 2012

Two examples of degree-driven algorithm design, Guest lecture at The Institute of Science and Technology (IST) Austria in Maria Gugging, Austria, December 2009

Numerical issues in a geometric problem with Brittany Terese Fasy, Guest Lecture Duke University, Durham, NC, 2008

Exploring Computational Mathematics: Unfolding Polyhedra with Brittany Terese Fasy, MAA-Mathfest, Madison, Wi, 2008

Streaming Processing of Spatial Data UNC-Chapel Hill, University Research Day 2008

A parallel Delaunay algorithm for CGAL REUSSI Seminar, INRIA-Rocqencort 2007

Reducing the degree of Apollonius Diagram Predicates REUSSI Seminar, INRIA-Rocqencort 2006