K. Izumi

Classification of Social Network Sites based on Network Indexes and Communication Patterns

F. Toriumi, H. Suwa, I. Okada, 2011 .

Comparison Analysis among Large Amount of SNS Sites

Hirohiko Suwa, Isamu Okada, Fujio Toriumi, 2010 .

Personalized Dynamic Recommender System for Investors

Chung-Chi Chen, K. Izumi, Takehiro Takayanagi, 2023, SIGIR.