Weiwei Chen was a Phd student in the Science Automation Technologies group at the USC Information Sciences Institute. He received his BS from Tsinghua University (China) in 2009 and his MS from USC in 2012. His research focuses on workflow restructuring including task clustering, workflow partitioning and overhead analysis. He now works at Google in the social infrastructure team. For more information, please visit https://sites.google.com/site/weiweich2014.