Raluca Ilie, University of Illinois at Urbana Champaign; Eric Shaffer, University of Illinois at Urbana Champaign; Cynthia Marie D'Angelo, University of Illinois at Urbana Champaign; Daniel Cermak, Illinois Informatics; University of Illinois at Urbana Champaign ; Mei-Yun Lin, University of Illinois at Urbana Champaign; Hsinju Chen, University of Illinois at Urbana Champaign