We published the following papers in the Transactions of Japanese Society for Artificial Intelligence:

• Compound reinforcement learning. Tohgoroh Matsui. Transactions of Japanese Society for Artificial Intelligence, Vol. 26, No. 2, pp. 330-334 (2011). Jan. 2011, in Japanese.
• Implementation tests of financial market analysis by text mining. Kiyoshi Izumi, Takashi Goto, Tohgoroh Matsui. Transactions of Japanese Society for Artificial Intelligence, Vol. 26, No. 2, pp. 313-317 (2011). Jan. 2011, in Japanese.

We published the following paper at IEEE ICDM 2010 Workshop on Data Driven Data Mining held in Sidney, Australia, on December 14-17, 2010:

• Trading Tests of Long-Term Market Forecast by Text Mining. Kiyoshi Izumi, Takashi Goto, Tohgoroh Matsui. Proceedings of 2010 IEEE International Conference on Data Mining Workshops, pp. 935-942, IEEE Computer Society (2010). Dec. 2010, Sidney, Australia.