Eiichi Umehara

11 papers B 2Journal 3Unranked 6
YearRankTypeTitle / Venue / Authors
2024 B conf
ForumPFN: Online Forum Post Fusion Network for Volatility Index Movement Prediction.
IEEE Big Data
Kentaro Ueda, Hirohiko Suwa, Eiichi Umehara, Yuki Ogawa, Tatsuo Yamashita, Kota Tsubouchi, Keiichi Yasumoto
2024 J jnl
SSCDV: Social media document embedding with sentiment and topics for financial market forecasting.
Expert Syst. Appl.
Kentaro Ueda, Hirohiko Suwa, Masaki Yamada, Yuki Ogawa, Eiichi Umehara, Tatsuo Yamashita, Kota Tsubouchi, Keiichi Yasumoto
2021 — conf
Prediction of Nikkei VI increase for reducing investment risk using Yahoo! JAPAN stock BBS.
WI/IAT (Workshop/Special Session)
Kentaro Ueda, Kodai Sasaki, Hirohiko Suwa, Yuki Ogawa, Eiichi Umehara, Tatsuo Yamashita, Kota Tsubouchi, Keiichi Yasumoto
2020 — conf
Evaluation of VI Index Forecasting Model by Machine Learning for Yahoo! Stock BBS Using Volatility Trading Simulation.
HICSS
Kodai Sasaki, Hirohiko Suwa, Yuki Ogawa, Eiichi Umehara, Tatsuo Yamashita, Kota Tsubouchi
2018 — conf
Simulation of Volatility Trading using Nikkei Stock Index Option based on Stock Bulletin Board.
IEEE BigData
Kodai Sasaki, Yui Hirose, Eiichi Umehara, Hirohiko Suwa, Yuki Ogawa, Tatsuo Yamashita, Kota Tsubouchi
2017 — conf
Analysis of twitter messages about the osaka metropolis plan in Japan.
IEEE BigData
Kouki Hayashi, Eiichi Umehara, Yuuki Ogawa
2017 — conf
Develop method to predict the increase in the Nikkei VI index.
IEEE BigData
Hirohiko Suwa, Yuki Ogawa, Eiichi Umehara, Kento Kakigi, Keiichi Yasumoto, Tatsuo Yamashita, Kota Tsubouchi
2012 — conf
Stock BBS Factor Model Using Principal Component Score.
WCSS
Hirohiko Suwa, Eiichi Umehara, Toshizumi Ohta
2011 J jnl
Game of Risk Communications - The Case of a Japanese Carmaker.
IEEE Trans. Syst. Man Cybern. Part A
Eiichi Umehara, Toshizumi Ohta
2009 B conf
Is Stock BBS Content Correlated with the Stock Market? A Japanese Case.
SMC
Ken Maruyama, Eiichi Umehara, Hirohiko Suwa, Toshizumi Ohta
2009 J jnl
Using Game Theory to Investigate Risk Information Disclosure by Government Agencies and Satisfying the Public - The Role of the Guardian Agent.
IEEE Trans. Syst. Man Cybern. Part A
Eiichi Umehara, Toshizumi Ohta