A Questionnaire Method of Class Evaluations Using AHP with a Ternary Graph. - Natsumi Oyamaguchi; Hiroyuki Tajima; Isamu Okada (KES-IDT, 2018)

Visualization of Criteria Priorities Using a Ternary Diagram. - Natsumi Oyamaguchi; Hiroyuki Tajima; Isamu Okada (KES-IDT (2), 2019)

Tournament Method Using a Tree Structure to Resolve Budget Conflicts. - Natsumi Oyamaguchi; Hiroyuki Tajima; Isamu Okada (KES-IDT, 2020)

Model of Multi-branch Trees for Efficient Resource Allocation. - Natsumi Oyamaguchi; Hiroyuki Tajima; Isamu Okada (Algorithms, 2020)

Fluctuations in Evaluations with Multi-branch Tree Method for Efficient Resource Allocation. - Natsumi Oyamaguchi (KES-IDT, 2021)