Easiest-first search: towards comprehension-based web search. - Makoto Nakatani; Adam Jatowt; Katsumi Tanaka (CIKM, 2009)

Quality Evaluation of Search Results by Typicality and Speciality of Terms Extracted from Wikipedia. - Makoto Nakatani; Adam Jatowt; Hiroaki Ohshima; Katsumi Tanaka (DASFAA, 2009)

Adaptive ranking of search results by considering user's comprehension. - Makoto Nakatani; Adam Jatowt; Katsumi Tanaka (ICUIMC, 2010)