3 papers
math.OC2026
A Regularized Nikaido-Isoda Function Approach to Multi-Leader-Follower Games
Atsushi Hori, Takayuki Okuno, Ellen H. Fukuda
A multi-leader--follower game (MLFG) is a hierarchical noncooperative game in which leaders compete at the upper level while taking into account the followers' best responses at th…
math.OC2026
A closer target setting approach to boundary problems with the Russell graph measure
Atsushi Hori, Kazuyuki Sekitani
A Russell graph measure (RGM) is one of the standard DEA models, but its efficiency measure is not well-defined--or has unacceptable properties--at the boundary of the nonnegative…
math.OC2024
Variants of the slacks-based measure with assurance region and zeros in input-output data
Atsushi Hori, Kazuyuki Sekitani
Incorporating an assurance region (AR) into the slacks-based measure (SBM) improves practicality; however, its efficiency measure may not have desirable properties, such as monoton…