Hybrid simulation on qualitative and quantitative integrated model using Monte Carlo method. - Masaki Samejima; Keisuke Negoro; Masanori Akiyoshi; Norihisa Komoda; Koshichiro Mitsukuni (SCSC, 2007)

Inverse Simulation for Recommendation of Business Scenario With Qualitative and Quantitative Hybrid Model. - Keisuke Negoro; Takeshi Nakazaki; Susumu Takeuchi; Masanori Akiyoshi (ICSOFT (PL/DPS/KE), 2008)

A Classification Method of Users Opinions Using Category-Based Dictionary Generated from Answers in Open-Ended Questionnaire System. - Keisuke Negoro; Hiroaki Oiso; Masanori Akiyoshi; Norihisa Komoda (New Challenges in Applied Intelligence Technologies, 2008)

Sequential classification method for open-ended questionnaire data based on category classification sample. - Kaoru Iida; Keisuke Negoro; Hiroaki Oiso; Masanori Akiyoshi (IADIS AC (1), 2009)

Finding method of business risk factors by using qualitative and quantitative hybrid simulation. - Masanori Akiyoshi; Keisuke Negoro; Koshichiro Mitsukuni; Norihisa Komoda (INDIN, 2009)