Data analysis on train transportation data with nonnegative matrix factorization. - Kyoichi Ito; Masaki Ito; Kosuke Miyazaki; Keishi Tanimoto; Kaoru Sezaki (IEEE BigData, 2017)

Real-Time Visualization of the Degree of Indoor Congestion with Smartphone-Based Participatory Sensing. - Tomoya Kitazato; Kyoichi Ito; Keisuke Umezawa; Masaki Ito; Kaoru Sezaki (HCI (21), 2017)