Depth of Field and Cautious-Greedy Routing in Social Networks. - David Barbella; George Kachergis; David Liben-Nowell; Anna Sallstrom; Ben Sowell (ISAAC, 2007)

Understanding Support Vector Machine Classifications via a Recommender System-Like Approach. - David Barbella; Sami Benzaid; Janara M. Christensen; Bret Jackson; X. Victor Qin; David R. Musicant (DMIN, 2009)