Katsuyuki Umezawa, Tomohiko Saito, Takashi Ishida, Makoto Nakazawa, Shigeichi Hirasawa. Learning-State-Estimation Method Using Browsing History and Electroencephalogram During Programming Language Learning and Its Evaluation. Springer, Communications in Computer and Information Science book series. 2021. 1344. 40-55
Katsuyuki Umezawa, Tomohiko Saito, Takashi Ishida, Makoto Nakazawa, Shigeichi Hirasawa. Learning State Estimation Method by Browsing History and Brain Waves During Programming Language Learning. Trends and Advances in Information Systems and Technologies - Volume 2 [WorldCIST'18, Naples, Italy, March 27-29, 2018]. 2018. 1307-1316
Katsuyuki Umezawa, Tomohiko Saito, Takashi Ishida, Makoto Nakazawa, Shigeichi Hirasawa. An Electroencephalograph-Based Method for Judging the Difficulty of a Task Given to a Learner. 17th IEEE International Conference on Advanced Learning Technologies, ICALT 2017, Timisoara, Romania, July 3-7, 2017. 2017. 384-386
Katsuyuki Umezawa, Takashi Ishida, Michitaka Aramoto, Manabu Kobayashi, Makoto Nakazawa, Shigeichi Hirasawa. A Method based on Self-study Log Information for Improving Effectiveness of Classroom Component in Flipped Classroom Approach. International Journal of Software Innovation (IJSI). 2016. 4. 2. 17-32
Kenta Mikawa, Takashi Ishida, Masayuki Goto. A Proposal of Extended Cosine Measure for Distance Metric Learning in Text Classification. 2011 IEEE International Conference on Systems, Man, and Cybernetics. 2011
Makoto Suzuki, Takashi Ishida, Masayuki Goto. Refinement of Index Term Set and Improvement of Classification Accuracy on Text Categorization. 2008 International Symposium on Information Theory and its Applications. 2008. ISITA2008
Masayuki Goto, Takashi Ishida, Makoto Suzuki, Shigeichi Hirasawa. Asymptotic Evaluation of Distance Measure on High Dimensional Vector Spaces in Text Mining. 2008 International Symposium on Information Theory and its Applications. 2008. ISITA2008
Masayuki Goto, Takashi Ishida, Shigeich Hirasawa. Statistical Evaluation of Measure and Distance on Document Classification Problems in Text Mining. IEEE International Conference on Computer and Information Technology. 2007. CIT2007. 674-679
Masayuki Goto, Takashi Ishida, Shigeichi Hirasawa. Representation Method for a Set of Documents from the Viewpoint of Bayesian Statistics. 2003 IEEE International Conference on System, Man and Cybernetics. 2003. IEEE SMC 2003. 4637-4642
Application of grouped flipped classroom to two-year actual class and its statistical evaluation
(Katsuyuki Umezawa, Takashi Ishida, Makoto Nakazawa, and Shigeichi Hirasawa 2019)
Understanding of Self-Study in a Grouped Flipped Classroom
(15th International Conference on Education, Technology, E-Learning & Society (ICE19Hong Kong Conference) 2019)