Eiichi Umehara

Publication Activity (10 Years)

Years Active: 2009-2024
Publications (10 Years): 6

Top Topics

Financial Time Series

Forecasting Model

Top Venues

WI/IAT (Workshop/Special Session)

Expert Syst. Appl.

Publications

Kentaro Ueda, Hirohiko Suwa, Masaki Yamada, Yuki Ogawa, Eiichi Umehara, Tatsuo Yamashita, Kota Tsubouchi, Keiichi Yasumoto
SSCDV: Social media document embedding with sentiment and topics for financial market forecasting. Expert Syst. Appl. 245 (2024)
Kentaro Ueda, Kodai Sasaki, Hirohiko Suwa, Yuki Ogawa, Eiichi Umehara, Tatsuo Yamashita, Kota Tsubouchi, Keiichi Yasumoto
Prediction of Nikkei VI increase for reducing investment risk using Yahoo! JAPAN stock BBS. WI/IAT (Workshop/Special Session) (2021)
Kodai Sasaki, Hirohiko Suwa, Yuki Ogawa, Eiichi Umehara, Tatsuo Yamashita, Kota Tsubouchi
Evaluation of VI Index Forecasting Model by Machine Learning for Yahoo! Stock BBS Using Volatility Trading Simulation. HICSS (2020)
Kodai Sasaki, Yui Hirose, Eiichi Umehara, Hirohiko Suwa, Yuki Ogawa, Tatsuo Yamashita, Kota Tsubouchi
Simulation of Volatility Trading using Nikkei Stock Index Option based on Stock Bulletin Board. IEEE BigData (2018)
Kouki Hayashi, Eiichi Umehara, Yuuki Ogawa
Analysis of twitter messages about the osaka metropolis plan in Japan. IEEE BigData (2017)
Hirohiko Suwa, Yuki Ogawa, Eiichi Umehara, Kento Kakigi, Keiichi Yasumoto, Tatsuo Yamashita, Kota Tsubouchi
Develop method to predict the increase in the Nikkei VI index. IEEE BigData (2017)
Hirohiko Suwa, Eiichi Umehara, Toshizumi Ohta
Stock BBS Factor Model Using Principal Component Score. WCSS (2012)
Eiichi Umehara, Toshizumi Ohta
Game of Risk Communications - The Case of a Japanese Carmaker. IEEE Trans. Syst. Man Cybern. Part A 41 (4) (2011)
Ken Maruyama, Eiichi Umehara, Hirohiko Suwa, Toshizumi Ohta
Is Stock BBS Content Correlated with the Stock Market? A Japanese Case. SMC (2009)
Eiichi Umehara, Toshizumi Ohta
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 39 (2) (2009)