Mining structures of factual knowledge from text, 2018, via WWW, Sept. 21, 2018: PDF title page (Xiang Ren, University of Southern California) p. 183 (Assistant Professor in the Department of Computer Science at USC)

Xiang Ren's web page at USC, viewed Sept. 21, 2018: home page (Xiang (Sean) Ren; Assistant Professor, Department of Computer Science, USC) CV (University of Illinois, Urbana-Champaign, PH.D. in computer science, May 2018; University of Illinois, Urbana-Champaign, M.SC. in computer science, April 2016; Zhejiang University, Hangzhou, China, B.ENG. in computer science, June 2012)