Alyosha Efros is a professor in the EECS Department at UC Berkeley, where he is part of the Berkeley Artificial Intelligence Research Lab (BAIR). Before that, Alyosha spent nine years on the faculty of the Robotics Institute at CMU. Alyosha completed his post-doc with Andrew Zisserman in Oxford. Since 2007, he has also been closely collaborating with Team WILLOW at École Normale Supérieure / INRIA in Paris.