1. Mining fuzzy association rules from questionnaire data
2. Ryoji Horita , Minoru Mitsui , Takayuki Ito , Shun Shiramatsu , Akihisa Sengoku , Katsuhide Fujita , and Naoki Fukuta . 2017 . A design of research group workshop to generate co-creation between researchers and citizens . In Proceedings of the 12th International Conference on Knowledge, Information and Creativity Support System. 7–12 . Ryoji Horita, Minoru Mitsui, Takayuki Ito, Shun Shiramatsu, Akihisa Sengoku, Katsuhide Fujita, and Naoki Fukuta. 2017. A design of research group workshop to generate co-creation between researchers and citizens. In Proceedings of the 12th International Conference on Knowledge, Information and Creativity Support System. 7–12.
3. Using conservative estimation for conditional probability instead of ignoring infrequent case
4. Confidence interval of probability estimator of Laplace smoothing