Text mining of securities reports for discovering reason of change

Yoshida Shin Ichiro
Nakatoh Tetsuya
Mitarai Shuichi
Hirokawa Sachio

25th International Conference on Computer Applications in Industry and Engineering, CAINE 2012 and 4th International Symposium on Sensor Network and Application, SNA 2012

http://orcid.org/0000-0001-9299-7757