SparseLab: sparse solution of underdetermined systems of linear equations. Slides, Stanford University, linear algebra and optimization seminar, September, 2005.
SparseLab 2: library for sparse solution of underdetermined systems using C++ for the iPhone, and Java for Android, 2010.
SymmLab: multiscale representations for manifold valued data. Slides, Weizmann Institute, computer vision seminar, August, 2005.