Published on in Vol 5 , No 10 (2017) :October

1 Donald Bren School of Information and Computer Sciences, Department of Informatics, University of California, Irvine, Irvine, CA, US
2 Department of Communication Studies, Northwestern University, Evanston, IL, US
3 School of Computing and Information, University of Pittsburgh, Pittsburgh, PA, US
4 College of Information Sciences and Technology, The Pennsylvania State University, University Park, PA, US
5 University of Washington, Seattle, WA, US
6 Healthwise, Boise, ID, US