N Semantic Classes are Harder than Two. - Ben Carterette; Rosie Jones; Wiley Greiner; Cory Barr (ACL, 2006)

Generating query substitutions. - Rosie Jones; Benjamin Rey; Omid Madani; Wiley Greiner (WWW, 2006)

Recall Systems: Effcient Learning and Use of Category Indices. - Omid Madani; Wiley Greiner; David Kempe 001; Mohammad R. Salavatipour (AISTATS, 2007)

Learning When Concepts Abound. - Omid Madani; Michael Connor; Wiley Greiner (J. Mach. Learn. Res., 2009)