Zicheng LiuDr Zicheng Liu is a Senior Researcher at Microsoft Research, Redmond. He has worked on a variety of topics including combinatorial optimization, linked figure animation and microphone array signal processing. His current research interests include acivity recognition, face modeling and animation, and multimedia collaboration. He has published more than 70 papers in peer-reviewed international journals and conferences and holds more than 40 granted patents. Read More Read Less