Katsuyuki Umezawa

33 papers B 6Misc 1Journal 4Unranked 22

Year	Rank	Type	Title / Venue / Authors
2025	—	`conf`	Contextual Coherence Evaluation of Perfectly Secure Steganography in Text Documents. ARES (Workshops 3) Katsuyuki Umezawa, Toshikatsu Kashima, Sven Wohlgemuth, Kazuo Takaragi
2025	J	`jnl`	Mental stress analysis by measuring heart rate variability during learning programming: Comparison of visual- and text-based languages. J. Comput. Lang. Katsuyuki Umezawa, Takumi Koshikawa, Makoto Nakazawa, Shigeichi Hirasawa
2024	—	`conf`	Mental Stress Analysis During Visual- And Text-Based Language Learning by Measuring Heart Rate Variability. WorldCIST (4) Katsuyuki Umezawa, Takumi Koshikawa, Makoto Nakazawa, Shigeichi Hirasawa
2024	B	`conf`	Verification of the effectiveness of classes using intermediate content for transitioning from a visual-to a text-based programming language. ICALT Katsuyuki Umezawa, Makoto Nakazawa, Shigeichi Hirasawa
2023	—	`conf`	A Study on the Relationship Between Heart Rate and Brain Waves During Programming Task in Several Experiments. ICSCA Katsuyuki Umezawa, Mitsuaki Sawata, Makoto Nakazawa, Shigeichi Hirasawa
2023	—	`conf`	Differential Analysis of Biological Information during the Learning of a Second Language and a Programming Language. TALE Katsuyuki Umezawa, Takumi Tajima, Michiko Nakano, Makoto Nakazawa, Shigeichi Hirasawa
2023	Misc	`conf`	Evaluation of Applying LDA to Redacted Documents in Security and Safety Analysis. CSR Katsuyuki Umezawa, Sven Wohlgemuth, Keisuke Hasegawa, Kazuo Takaragi
2023	—	`conf`	Proposal and Evaluation of Intermediate Content for the Transition from Visual to Text-Based Programming Languages. HICSS Katsuyuki Umezawa, Kouta Ishida, Makoto Nakazawa, Shigeichi Hirasawa
2023	J	`jnl`	Secure Revocation Features in eKYC - Privacy Protection in Central Bank Digital Currency. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Kazuo Takaragi, Takashi Kubota, Sven Wohlgemuth, Katsuyuki Umezawa, Hiroki Koyanagi
2023	—	`conf`	Utilizing Automatic Speech Recognition for English Pronunciation Practice and Analyzing its Impact. ICEED Katsuyuki Umezawa, Makoto Nakazawa, Michiko Nakano, Shigeichi Hirasawa
2022	B	`conf`	A Study on the Relationship Between Brain Waves, Heart Rate, and Facial Expressions During Programming Learning. SMC Katsuyuki Umezawa, Makoto Nakazawa, Michiko Nakano, Shigeichi Hirasawa
2022	—	`conf`	Brain Wave, Heart Rate, and Facial Expression Relationship Validation During Programming Learning Comprehension Study. HELMeTO Katsuyuki Umezawa, Makoto Nakazawa, Michiko Nakano, Shigeichi Hirasawa
2022	B	`conf`	Safety and Security Analysis using LDA based on Case Reports: Case Study and Trust Evaluation Method. ARES Katsuyuki Umezawa, Hiroki Koyanagi, Sven Wohlgemuth, Yusuke Mishina, Kazuo Takaragi
2021	—	`conf`	Comparison Experiment of Learning State Between Visual Programming Language and Text Programming Language. TALE Katsuyuki Umezawa, Yutaka Ishii, Makoto Nakazawa, Michiko Nakano, Manabu Kobayashi, Shigeichi Hirasawa
2021	—	`conf`	Evaluation of Difficulty During Visual Programming Learning Using a Simple Electroencephalograph and Minecraft Educational Edition. WorldCIST (3) Katsuyuki Umezawa, Makoto Nakazawa, Manabu Kobayashi, Yutaka Ishii, Michiko Nakano, Shigeichi Hirasawa
2020	—	`conf`	Analysis of Logic Errors Utilizing a Large Amount of File History During Programming Learning. TALE Katsuyuki Umezawa, Makoto Nakazawa, Manabu Kobayashi, Yutaka Ishii, Michiko Nakano, Shigeichi Hirasawa
2020	—	`conf`	Detection of Careless Mistakes during Programming Learning using a Simple Electroencephalograph. ICCSE Katsuyuki Umezawa, Makoto Nakazawa, Manabu Kobayashi, Yutaka Ishii, Michiko Nakano, Shigeichi Hirasawa
2020	—	`conf`	Evaluation of Grouped Flipped Classrooms Compared with Three-Year Actual Classes Using a Questionnaire. ICACIT Katsuyuki Umezawa, Takashi Ishida, Makoto Nakazawa, Shigeichi Hirasawa
2020	—	`conf`	Learning-State-Estimation Method Using Browsing History and Electroencephalogram During Programming Language Learning and Its Evaluation. HELMeTO Katsuyuki Umezawa, Tomohiko Saito, Takashi Ishida, Makoto Nakazawa, Shigeichi Hirasawa
2019	—	`conf`	Application of Grouped Flipped Classroom to Two-Year Actual Class and Its Statistical Evaluation. ICCSE Katsuyuki Umezawa, Takashi Ishida, Makoto Nakazawa, Shigeichi Hirasawa
2019	—	`conf`	Competitive Compliance with Blockchain. PerCom Workshops Sven Wohlgemuth, Katsuyuki Umezawa, Yusuke Mishina, Kazuo Takaragi
2019	—	`conf`	Development of Debugging Exercise Extraction System using Learning History. T4E Katsuyuki Umezawa, Makoto Nakazawa, Masayuki Goto, Shigeichi Hirasawa
2018	—	`conf`	Application and Evaluation of a Grouped Flipped Classroom Method. TALE Katsuyuki Umezawa, Takashi Ishida, Makoto Nakazawa, Shigeichi Hirasawa
2018	—	`conf`	Evaluation by Questionnaire on Grouped Flipped Classroom Method. ICEED Katsuyuki Umezawa, Takashi Ishida, Makoto Nakazawa, Shigeichi Hirasawa
2018	—	`conf`	Learning State Estimation Method by Browsing History and Brain Waves During Programming Language Learning. WorldCIST (2) Katsuyuki Umezawa, Tomohiko Saito, Takashi Ishida, Makoto Nakazawa, Shigeichi Hirasawa
2017	B	`conf`	An Electroencephalograph-Based Method for Judging the Difficulty of a Task Given to a Learner. ICALT Katsuyuki Umezawa, Tomohiko Saito, Takashi Ishida, Makoto Nakazawa, Shigeichi Hirasawa
2016	J	`jnl`	A Method Based on Self-Study Log Information for Improving Effectiveness of Classroom Component in Flipped Classroom Approach. Int. J. Softw. Innov. Katsuyuki Umezawa, Takashi Ishida, Michitaka Aramoto, Manabu Kobayashi, Makoto Nakazawa, Shigeichi Hirasawa
2015	—	`conf`	An Effective Flipped Classroom Based on Log Information of Self-Study. ACIT-CSI Katsuyuki Umezawa, Michitaka Aramoto, Manabu Kobayashi, Takashi Ishida, Makoto Nakazawa, Shigeichi Hirasawa
2014	B	`conf`	Proposal and evaluation by simulation of management processing load control method for virtual client system. SMC Katsuyuki Umezawa, Hiromi Goto
2013	—	`conf`	Development and Evaluation of a Virtual PC Type Thin Client System. Globe Katsuyuki Umezawa, Tomoya Miyake, Hiromi Goto
2011	B	`conf`	An authentication system using smart phones as secure storage. SMC Katsuyuki Umezawa, Satoru Tezuka, Shigeichi Hirasawa
2011	J	`jnl`	Development and Evaluation of FMC Authentication Technology with Cellular Phones. IEICE Trans. Commun. Katsuyuki Umezawa, Satoru Tezuka
2008	—	`conf`	A study on user authentication infrastructure for next generation telematics. ICVES Katsuyuki Umezawa, Seiichi Susaki, Masamori Kashiyama, Satoru Tezuka