Implicit Groups of Web Pages as Constrained Top N Concepts. - Aixiang Li; Makoto Haraguchi; Yoshiaki Okubo (Web Intelligence/IAT Workshops, 2008)

Finding What Changes for Two Graphs Constructed from Different Time Intervals. - Aixiang Li; Makoto Haraguchi; Yoshiaki Okubo; Etsuji Tomita (IIAI-AAI, 2012)

Top-N Minimization Approach for Indicative Correlation Change Mining. - Aixiang Li; Makoto Haraguchi; Yoshiaki Okubo (MLDM, 2012)

Contrasting Correlations by an Efficient Double-Clique Condition. - Aixiang Li; Makoto Haraguchi; Yoshiaki Okubo (Trans. Mach. Learn. Data Min., 2012)