Simulation of Volatility Trading using Nikkei Stock Index Option based on Stock Bulletin Board. - Kodai Sasaki; Yui Hirose; Eiichi Umehara; Hirohiko Suwa; Yuki Ogawa; Tatsuo Yamashita; Kota Tsubouchi (IEEE BigData, 2018)

Evaluation of VI Index Forecasting Model by Machine Learning for Yahoo! Stock BBS Using Volatility Trading Simulation. - Kodai Sasaki; Hirohiko Suwa; Yuki Ogawa; Eiichi Umehara; Tatsuo Yamashita; Kota Tsubouchi (HICSS, 2020)

Prediction of Nikkei VI increase for reducing investment risk using Yahoo! JAPAN stock BBS. - Kentaro Ueda; Kodai Sasaki; Hirohiko Suwa; Yuki Ogawa; Eiichi Umehara; Tatsuo Yamashita; Kota Tsubouchi; Keiichi Yasumoto (WI/IAT (Workshop/Special Session), 2021)