Apostol (Paul) Natsev is a software engineer and manager in the video content analysis group at Google Research. Previously, he was a research staff member and manager of the multimedia research group at IBM Research from 2001 to 2011. He received a master's degree and a Ph.D. in computer science from Duke University, Durham, NC, in 1997 and 2001, respectively. Dr. Natsev's research interests span the areas of image and video analysis and retrieval, machine perception, large-scale machine learning and recommendation systems. He is an author of more than 80 publications and his research has been recognized with several awards.